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TPA301D

TPA301D - 350mW Mono Class-AB Amplifier | Texas Instruments

The Texas Instruments TPA301D is a 350 mW, mono, Class-AB audio power amplifier designed for low-voltage systems and internal-speaker drive. It supports 3.3 V and 5 V operation, uses a bridge-tied-load topology, and is supplied in an 8-pin SOIC package. At 3.3 V, the manufacturer specifies 250 mW continuous power into an 8 ohm BTL load at less than 1% THD+N throughout the voice band. The device includes shutdown operation with 0.15 uA quiescent current, thermal protection, and short-circuit protection, making it suitable for portable audio, voice interfaces, and compact embedded systems. An audio power amplifier is an integrated circuit that converts a low-level analog audio signal into sufficient current and voltage to drive a loudspeaker or other audio load. A mono Class-AB amplifier uses one signal channel, while the TPA301D BTL architecture places the load between two output nodes rather than connecting one output to ground. This arrangement can improve speaker drive efficiency while requiring correct differential output routing and suitable input/output decoupling. The principal verified features are 350 mW class output capability, 3.3 V and 5 V supply compatibility, an 8-pin SOIC package, low 0.15 uA shutdown quiescent current, and integrated thermal and short-circuit protection. The TPA301 family also offers a surface-mount PowerPAD MSOP option according to the TI product page, although the TPA301D orderable variant is identified as 8-SOIC by distributor data. The manufacturer explicitly states that no special bypassing, gain-setting, or stability adjustments are required merely because the supply is 3.3 V rather than 5 V; output power is the important operating consideration. Because the part is designed around low-voltage BTL audio drive, circuit layout should preserve the differential output topology and place required capacitors close to the device pins. The input and output networks should be checked against the manufacturer datasheet for the selected supply, gain, load, and operating mode. The device should not be selected solely by its nominal 350 mW label: continuous speaker power, distortion, thermal conditions, supply headroom, and available PCB area determine practical performance. Typical applications include portable voice boxes, compact speakers, personal-audio accessories, embedded audio modules, and low-voltage consumer products. In a 3.3 V system, the verified 250 mW into 8 ohms condition provides a useful baseline, while 5 V operation provides additional output capability. For applications requiring more power, a different amplifier class or package should be evaluated rather than assuming that a higher supply alone preserves the same thermal and distortion performance. A practical design tip is to validate the speaker impedance and wiring before layout approval. A BTL amplifier must never be configured like a single-ended amplifier with one output grounded. Review the TI datasheet for recommended input, bypass, feedback, output, and decoupling networks, then test worst-case low-supply, high-temperature, maximum-volume conditions. This page combines verified manufacturer and distributor information with practical selection guidance, datasheet-oriented FAQs, and engineering-oriented design notes. It is intended to help engineers identify whether the TPA301D fits a low-voltage mono-speaker design before committing to a PCB footprint or supply architecture.

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TPA301DGH

TPA301DGH - 350mW Mono Class-AB Amplifier | Texas Instruments

Texas Instruments TPA301DGH is a 350mW mono Class-AB audio power amplifier designed for low-voltage, bridge-tied-load (BTL) speaker systems. The device operates from a 3.3V supply and can deliver 250mW of continuous power into an 8Ω BTL load at less than 1% THD+N throughout the voice band. Its primary package designation is DGH, although the exact package dimensions and pin count are not confirmed in the supplied verified data and therefore are not inferred here. An audio power amplifier is an integrated circuit that converts low-level audio signals into current and voltage capable of driving a loudspeaker or other electroacoustic load. The TPA301 belongs to the Class-AB audio amplifier hierarchy, which sits within integrated amplifier ICs and the broader power management and analog signal-processing semiconductor categories. A BTL output arrangement uses both sides of the speaker to develop voltage swing while avoiding the need for a single-ended output coupling capacitor. The principal performance characteristics include 350mW nominal output power, operation from a 3.3V supply, and 250mW continuous output into an 8Ω BTL load. According to the Texas Instruments TPA301 product information, total harmonic distortion plus noise remains below 1% across voice-band frequencies under the stated operating condition. Although the amplifier is characterized through 20kHz, its operation is optimized for voice-band audio rather than high-fidelity full-range reproduction. The Class-AB output stage provides a practical compromise between conduction efficiency and signal linearity. Compared with a switching audio amplifier, the TPA301 avoids the high-frequency switching artifacts and electromagnetic interference commonly associated with converter-based power stages. Conversely, a linear Class-AB amplifier dissipates more power as the supply-to-load voltage difference increases, making load selection and supply voltage important during thermal and battery-budget analysis. Typical uses include portable speakers, voice-enabled personal audio products, compact sound modules, and low-voltage embedded audio systems. The 3.3V supply requirement aligns with portable equipment powered by regulated batteries or point-of-load rails, while the 250mW capability into 8Ω is suitable for small internal speakers. System designers must still verify speaker impedance, peak current, thermal rise, output distortion, and startup behavior against the complete manufacturer datasheet. When designing around the TPA301DGH, preserve the manufacturer-recommended input, bypass, and output-network layout. Do not infer a pin configuration or exposed-pad connection from the DGH ordering code alone. Confirm the exact package drawing, exposed thermal-pad requirements, maximum supply voltage, output-current limits, and operating-temperature limits against the current Texas Instruments documentation before releasing a PCB design. This page consolidates verified manufacturer and distributor information, current Rochester Electronics pricing, application guidance, design cautions, and substitution-status findings. It explicitly separates confirmed specifications from unavailable parameters so engineers can trace each decision to source data rather than relying on an unverified generic TPA301 listing.

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TPA301DR

TPA301DR - 350mW Mono Class-AB Amplifier | Texas Instruments

The Texas Instruments TPA301DR is a 350 mW mono Class-AB audio power amplifier designed for 3.3 V and 5 V operation, with a bridge-tied-load output and an 8-pin SOIC package. The device delivers 250 mW continuously into an 8 ohm BTL load from a 3.3 V supply at less than 1% THD+N through the voice band. Its Class-AB architecture is intended for compact internal speakers where low supply voltage, simple integration, and adequate output power matter more than maximum efficiency. The TPA301DR family is specified for common 3.3 V and 5 V rails, while its shutdown behavior supports portable equipment. The bridge-tied-load topology drives the speaker differentially, eliminating the need for an output coupling capacitor in the typical application. However, the speaker terminals cannot be connected to ground or chassis ground because each output switches around the midpoint of the supply. According to the verified Texas Instruments product page and TPA301 datasheet, the device is optimized for low-voltage systems using internal speakers. The manufacturer emphasizes that output power is the principal consideration when comparing 3.3 V and 5 V operation; supply bypassing, gain settings, and stability do not require special changes between those rails. The SOIC-8 footprint supports conventional surface-mount assembly, while thermal design remains important because Class-AB output stages dissipate more power than switching amplifiers at low output levels. System designers should verify speaker impedance, gain, supply bypassing, thermal exposure, and shutdown polarity against the datasheet before production release.

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TPA302D

TPA302D - 300mW Stereo Class-AB Amplifier | Texas Instruments

The Texas Instruments TPA302D is a 300 mW stereo, analog-input Class-AB audio power amplifier with two output channels and an 8-pin SOIC (D) package. It is designed for compact audio systems operating from 5 V and 3.3 V supplies. The manufacturer describes 250 mW continuous average output per channel into an 8-ohm load and 60 mW at less than 0.06% THD+N. A Class-AB audio amplifier is a linear power-amplifier category that combines an analog input signal with transistor output stages capable of driving speakers and other finite loads. The TPA302D belongs to the broader hierarchy of audio amplifiers, audio ICs, analog signal-conditioning ICs, and semiconductor devices. Its stereo architecture supports two audio channels while its analog inputs permit direct connection to conventional audio sources. Key features include shutdown control, internal mid-rail generation, thermal protection, and short-circuit protection. The device is also identified as a functional equivalent of the LM4880 in the supplied technical data. Its 8-pin SOIC package reduces board space and supports automated surface-mount assembly. The verified product information specifically identifies the amplifier as a 300 mW stereo Class-AB device with analog input. The TPA302 architecture uses separate left and right amplification paths to provide stereo output from analog input signals. The internal mid-rail feature can support single-supply audio architectures, while shutdown control allows the system to place the amplifier in a lower-power state when audio is not required. The datasheet and product listing also indicate compatibility with 5 V and 3.3 V operation, which makes the device relevant to portable equipment, small consumer audio products, and low-voltage embedded systems. Typical applications include compact stereo speakers, portable audio equipment, auxiliary audio products, USB or docking-system audio paths, and small embedded audio subsystems. The 8-ohm speaker-load target and 250 mW continuous average capability are suitable for low-to-moderate listening levels, although the available output power depends on supply voltage, load impedance, channel balance, thermal conditions, and signal level. Designers should verify the SOIC footprint, supply decoupling, output-filter requirements, speaker wiring, thermal rise, and shutdown polarity against the manufacturer datasheet before layout release. The device is not a Class-D switching amplifier, so its output-stage dissipation and analog signal integrity should be checked carefully in continuous-use designs.

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TPA302DR

TPA302DR - 300mW Stereo Class-AB Amplifier | Texas Instruments

The Texas Instruments TPA302DR is a 300 mW stereo analog-input Class-AB audio amplifier with a 1.5 MHz bandwidth, 5.5 V maximum supply voltage, and an 8-pin SOIC package. It delivers 250 mW per channel into an 8-ohm load and provides 60 mW of continuous output power at less than 0.06% THD+N. Designed for compact audio systems, the TPA302DR combines stereo output, internal mid-rail generation, shutdown control, and thermal and short-circuit protection in a low-profile surface-mount package. A Class-AB audio amplifier is an analog signal-processing integrated circuit that uses push-pull transistor output stages to drive speakers or other low-impedance loads. The TPA302DR belongs to the broader audio-amplifier hierarchy, which includes stereo amplifiers, linear amplifiers, and semiconductor power amplifiers. Its Class-AB architecture provides continuous bipolar output rather than the pulsed output associated with Class-D designs, making it suitable for low-power portable, personal-audio, and auxiliary audio products. Key features include 300 mW stereo output capability, 1.5 MHz bandwidth, operation from 5 V and 3.3 V rails, internally generated mid-rail voltage, shutdown control, and thermal and short-circuit protection. The 8-pin SOIC package reduces board area and supports automated surface-mount assembly. These characteristics make the device useful where two analog audio channels must drive headphones or small speakers without the complexity of a switching amplifier and external mid-rail circuitry. The amplifier accepts analog left- and right-channel inputs and uses external gain-setting resistors to establish channel gain. According to the Texas Instruments TPA302 data sheet, the device is specified for operation from a 5 V supply and is also compatible with 3.3 V operation. Its internally generated mid-rail provides a convenient common return for single-supply audio signals, while the shutdown function can reduce supply consumption when the audio path is not active. Typical applications include portable speakers, headphone and headset drivers, personal-audio accessories, small consumer-audio systems, and compact embedded audio products. The 250 mW-per-channel capability into 8 ohms is appropriate for low-impedance transducers rather than high-power loudspeaker systems. System designers should confirm speaker impedance, amplifier gain, input coupling, output configuration, and power-supply headroom before finalizing the analog and layout design. A key design consideration is the distinction between the 300 mW headline output rating and the verified application condition of 250 mW per channel into 8 ohms. Allow for copper, nearby heat sources, enclosure temperature, and supply tolerance, and use the datasheet thermal information to assess reliable operation. This page synthesizes verified manufacturer and distributor information, engineering design notes, comparison data, and drop-in replacement guidance beyond the basic distributor listing.

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TPA311D

TPA311D - 350mW Mono Class-AB Amplifier | Texas Instruments

The Texas Instruments TPA311D is a 350 mW mono Class-AB audio amplifier with bridge-tied-load to single-ended switching mode, specified for 3.3 V and 5 V operation and housed in an 8-pin SOIC package. It is designed for low-voltage audio paths where an internal speaker and external earphone may share the same system. According to the verified distributor listing, TPA311D is a one-channel mono Class-AB amplifier in an 8-SOIC package. A Class-AB audio amplifier is a linear audio amplifier whose output devices conduct for part of the signal cycle. In the audio-power hierarchy, it provides a relatively linear output with less switching-related EMI than many Class-D solutions, making it useful in compact voice, portable-device, and low-voltage speaker systems. The TPA311 family also supports bridge-tied-load and single-ended operating modes, allowing the device to serve internal-speaker and earphone paths with appropriate output configuration. The verified data identifies the TPA311 as a 350 mW mono audio power amplifier and highlights operation at 3.3 V and 5 V, wide power-supply compatibility, bridge-tied-load to single-ended mode control, integrated depop circuitry, and thermal and short-circuit protection. The manufacturer product page describes 250 mW continuous power into a bridge-tied 8-ohm load at less than 1% THD+N throughout voice-band frequencies when operated from a 3.3 V supply. These figures describe the TPA311 family context associated with TPA311D. The architecture is suitable for compact audio equipment where a low-voltage supply limits available output power. The integrated protection features help manage thermal and short-circuit conditions, while depop circuitry helps control output transients during startup or mode changes. Engineers should still validate speaker impedance, supply headroom, thermal dissipation, and the selected output topology against the manufacturer datasheet before releasing a production PCB. Typical uses include portable audio products, voice-enabled devices, small speaker systems, headphone or earphone interfaces, and embedded audio subsystems. The 8-SOIC package simplifies assembly for designs using conventional surface-mount production processes. Because the target is a legacy audio amplifier family, availability, lifecycle status, pricing, and exact electrical limits should be reconfirmed from current manufacturer and distributor data. A key design consideration is the difference between the family headline rating of 350 mW and the verified 3.3 V application condition of 250 mW into an 8-ohm BTL load at less than 1% THD+N. The circuit must be designed around the actual supply, load, package thermal behavior, and output mode rather than treating the headline power as an unconditional speaker rating. This page combines verified source data with structured engineering guidance and clearly identifies unavailable parameters.

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TPA311DG4

TPA311DG4 - 350mW Mono Class AB Amplifier | Texas Instruments

The Texas Instruments TPA311DG4 is a 350 mW mono audio power amplifier IC for low-voltage audio systems, operating from 3.3 V or 5 V and housed in an 8-pin SOIC surface-mount package. It is a Class AB amplifier that supports bridge-tied load (BTL) and single-ended (SE) operating modes, includes integrated depop circuitry, and provides thermal and short-circuit protection. An audio power amplifier is an integrated circuit that increases the voltage and current capability of an audio signal so it can drive a speaker or another defined load. In the broader hierarchy, the TPA311DG4 is a mono Class AB audio amplifier, an amplifier IC, an integrated circuit, and a discrete signal-processing component for low-voltage audio equipment. Its BTL architecture allows an internal speaker to be driven without a speaker-blocking capacitor, while SE mode supports external earphone operation. The device is specified for 3.3 V and 5 V operation, with a maximum supply voltage of 5.5 V. Its 350 mW output-power description makes it suitable for compact internal speakers and low-power audio paths. A distributor listing also reports 0.7 W nominal output power, but the manufacturer-linked search description identifies the TPA311DG4 specifically as a 350 mW mono audio power amplifier. System designers should therefore confirm the exact test conditions and load used in the manufacturer datasheet before sizing the speaker and supply. The TPA311 family combines a fully specified low-voltage operating range with BTL-to-SE mode control, integrated depop circuitry, and built-in thermal and short-circuit protection. These features make the amplifier appropriate for products using either 3.3 V or 5 V system rails. The 8-pin SOIC package also supports automated assembly and compact board layouts, although adequate copper and thermal layout remain necessary when continuous audio output causes appreciable internal dissipation. Typical applications include portable speaker systems, compact consumer audio products, and low-voltage equipment requiring an internal mono speaker plus an external headphone path. The part can also serve as the power stage in a larger audio subsystem when the design only requires a small speaker output. Its protection functions reduce system risk during abnormal load conditions, but they do not replace correct speaker impedance selection, supply decoupling, or thermal design. A key design consideration is the difference between BTL and SE mode. In BTL mode, the amplifier drives the speaker differentially and does not require an output coupling capacitor. In SE mode, one output is referenced differently to support an earphone load. Designers should follow the manufacturer configuration, component values, and decoupling guidance rather than assuming that the two modes have identical load, output-power, or stability requirements. This product page consolidates the verified manufacturer and distributor descriptions for the TPA311DG4, identifies the available pin-compatible family comparisons, and adds application guidance that is not presented as a substitute for the official electrical characteristics, absolute maximum ratings, and test-condition tables in the manufacturer datasheet.

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TPA311DR

TPA311DR - 350mW Mono Class-AB Amplifier | Texas Instruments

Texas Instruments TPA311DR is a 350 mW mono Class-AB audio power amplifier with bridge-tied-load and single-ended operating modes, specified for operation from a 3.3 V supply and supplied in an 8-pin SOIC package. It is designed to drive internal speakers or external earphones in compact, low-voltage audio systems. According to the manufacturer product page, the TPA311 family supports fully specified 3.3 V and 5 V operation, integrated BTL-to-SE mode control, integrated depop circuitry, and thermal and short-circuit protection. The R suffix identifies the taped-and-reeled ordering option, while the device itself is a single-channel Class-AB audio amplifier. An audio power amplifier is an integrated circuit that converts a low-level audio input into a higher-current signal capable of driving a loudspeaker or other transducer. The TPA311 belongs to the Class-AB amplifier hierarchy within audio amplifiers and power-management ICs. Its bridge-tied-load mode increases usable output voltage into a differential speaker, while single-ended mode allows the same device to drive an external earphone when the system requires a grounded output. Key features include 350 mW rated output capability, compatibility with 3.3 V and 5 V supplies, integrated BTL-to-SE mode control, integrated depop circuitry, and built-in thermal and short-circuit protection. These features make the device suitable for portable audio, voice terminals, personal-audio products, and other compact systems in which a single-speaker or earphone output is needed without a large external amplifier module. The architecture is optimized for low-voltage operation. At a 3.3 V supply, the manufacturer documentation describes 250 mW continuous output into an 8-ohm BTL load at less than 1% THD+N across voice-band frequencies. The lower output-power figure reflects the device's 3.3 V operating condition; the family-level headline rating is 350 mW. BTL operation suppresses the DC output offset at the speaker and can provide greater output swing than a conventional single-ended amplifier. Typical applications include portable media players, personal audio accessories, voice-call terminals, compact speakers, and low-voltage embedded audio products. The TPA311DR can be selected when the board uses an 8-pin SOIC footprint and requires integrated protection rather than a discrete output stage. A key design consideration is output-mode configuration: the mode-control function must be connected or configured as required by the manufacturer reference design for the intended BTL or SE load. Input and output decoupling, speaker-return routing, thermal copper, and clean grounding are essential for low distortion and stable operation. This page consolidates verified manufacturer and distributor information, drop-in candidate screening, application guidance, and practical PCB considerations. It also distinguishes explicitly sourced facts from unavailable specifications, helping engineers make a defensible design decision without relying on a generic distributor listing alone.

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TPA321D

TPA321D - 700mW Mono Class-AB Audio Amp | TI

The Texas Instruments TPA321D is a 700 mW mono analog-input Class-AB audio power amplifier with differential inputs, operating from 2.5 V to 5.5 V in an 8-pin SOIC package. It is designed for low-voltage systems that drive internal speakers through a bridge-tied-load output. An audio power amplifier is an integrated circuit that increases the voltage and current capability of an analog audio signal so it can drive a loudspeaker or other finite impedance. A Class-AB amplifier provides linear operation with lower crossover distortion than a traditional Class-B design. A differential input accepts signal voltage between two input terminals, while a bridge-tied-load output uses both amplifier outputs to develop voltage across the speaker without requiring a speaker-coupling capacitor. The TPA321 family is specified for 3.3 V and 5 V operation and supports a 2.5 V to 5.5 V supply range. At a 3.3 V supply, the manufacturer material states that the device can deliver 250 mW continuously into an 8-ohm bridge-tied load with less than 1% THD+N over the voice band. The TPA321D ordering option is supplied in the 8-pin SOIC package and supports a -40°C to +85°C operating-temperature range. Differential input architecture can help reject common-mode noise when the source is balanced or when noise appears equally on both input conductors. The bridge-tied-load topology places the speaker between OUT+ and OUT-, so neither output pin should be grounded merely to establish a common reference. Input, supply, and output stability components must be implemented according to the manufacturer datasheet to preserve stable operation and acceptable distortion. Typical uses include portable-device speakers, compact audio accessories, personal-audio products, and other low-voltage mono sound systems. The design is appropriate when a small internal speaker must be driven directly and board area is limited. At higher power or with a longer speaker connection, cable losses and load tolerance should be checked before release. Decoupling capacitors should be placed close to the supply pins, and input components should be arranged to minimize the audio trace area. Thermal performance depends on supply voltage, output power, speaker impedance, PCB copper, and ambient temperature. This page combines verified product information with purchasing guidance and design context. This data page distinguishes TPA321D from the broader TPA321 family, summarizes the electrically relevant evidence, and organizes sourcing and replacement questions. Values not explicitly supplied by the retrieved manufacturer or distributor data remain marked for verification rather than inferred.

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TPA321DG4

TPA321DG4 - 350mW Mono Class-D Audio Amp | Texas Instruments

The Texas Instruments TPA321DG4 is a 350-mW mono Class-D audio power amplifier with differential inputs, specified for both 3.3 V and 5 V operation, and supplied in an 8-pin SOIC (DG4) package. It delivers its rated output into a minimum 8-ohm speaker load, draws only 0.15 microamps in shutdown mode, and limits idle supply current to 1.5 mA maximum, making it well suited to portable and low-voltage audio equipment. A Class-D audio power amplifier is a switching type of linear audio output stage in which the transistor output devices are driven fully on or fully off, so that the amplifier dissipates far less power than an equivalent Class-AB stage at the same output level. Within the broader hierarchy of audio signal-chain ICs, the TPA321DG4 sits in the power-amplifier tier, downstream of the audio DAC or codec and upstream of the loudspeaker, converting a low-level differential analog signal into a rail-to-rail differential speaker drive. Key features include full specification across a 3.3 V and 5 V supply range, differential inputs that reject common-mode noise picked up from long source traces, 0.5 percent harmonic distortion, a maximum power dissipation of 725 mW, and a maximum load resistance of 8 ohms. Shutdown current of 0.15 microamps preserves battery life in portable equipment, while the industrial temperature grade supports extended ambient operation. Internally the device uses a charge-pump-assisted Class-D output stage with differential outputs, so each output pin swings around half the supply rail. Because the outputs are differential, a bridge-tied load sees the full rail-to-rail swing and delivers roughly four times the power of a single-ended arrangement at the same supply voltage. The gain-setting and input network are entirely passive, keeping the external bill of materials small. Typical applications include compact Bluetooth and portable speakers, headset and headphone drive, USB and Type-C powered audio accessories, small Bluetooth speaker modules, alarm and industrial buzzer drivers, and low-voltage voice-assistant or smart-home nodes where a 3.3 V rail is the only supply available. Design note: because the device has differential inputs and differential outputs, do not ground the input pins or tie the two output pins together. Place the input coupling capacitors and the input resistors close to the pins, route the differential pair as a tight pair to limit common-mode pickup, and terminate each output through its own LC filter network into the speaker. This page synthesizes distributor availability, pin-compatible drop-in alternatives, a parameter-by-parameter comparison, and practical layout and thermal notes that are not consolidated in the manufacturer datasheet itself.

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TPA3255DDVR

TPA3255DDVR - 315W Stereo Class-D Amplifier | Texas Instruments

The Texas Instruments TPA3255DDVR is a 315 W stereo, 600 W mono, analog-input Class-D audio power amplifier with an 18 V to 53.5 V supply range, supplied in a 44-pin HTSSOP DDV package. It is designed for high-power audio systems requiring efficient amplification and premium sound quality. The device supports two-channel stereo operation and can also be configured for mono use at higher output power. A Class-D audio amplifier is a switching power amplifier that uses transistor switching to deliver audio energy efficiently. In the broader hierarchy, a Class-D amplifier belongs to audio amplifiers, linear and nonlinear power amplifiers, and power-management semiconductor systems. Compared with a conventional linear audio amplifier, its switching architecture can reduce wasted power and heat while maintaining high output capability. The verified product information identifies 315 W stereo output, 600 W mono output, analog input, an 18 V to 53.5 V supply range, and a 44-pin HTSSOP package. The distributor listing also identifies the amplifier as a two-channel stereo Class-D device. These ratings make it suitable for professional audio, home-theater, public-address, multimedia, and other high-power sound systems where load capability and efficiency are important. Thermal design is central to using this amplifier because Class-D power stages can dissipate substantial heat at high output power. The DDV package provides a large thermal pad for board-level heat spreading, but the exact thermal resistance, output configuration details, protection thresholds, and application-specific limits must be taken from the manufacturer datasheet. The verified distributor information reports a 44-pin PowerTSSOP package and an operating-temperature range of 0 to 70 °C for the listed orderable part. Typical implementation uses analog audio inputs into the Class-D power stage, with speaker outputs driving stereo or bridged mono configurations. The amplifier is appropriate when the system supply is in the verified 18 V to 53.5 V range and the load is compatible with the manufacturer-defined output power conditions. Board layout, speaker wiring, grounding, thermal management, and protection circuitry should follow the TI datasheet and evaluation-board guidance. This product page combines verified Texas Instruments specifications, distributor package and sourcing information, application guidance, and verified cross-reference results. It distinguishes the high-power TPA3255DDVR from lower-power or functionally similar parts that may use different packages or pin configurations.

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TPLD2001

TPLD2001 - 18-GPIO PLD with I2C/SPI | Texas Instruments

The TPLD2001 is a programmable logic device (PLD) from Texas Instruments featuring 18 GPIOs and a selectable I2C/SPI interface. It is supplied in a 20-VSSOP package and integrates configurable macro-cells built from 2-, 3-, and 4-bit lookup tables (LUTs) together with sequential logic and analog blocks. The device operates from 1.71V to 5.5V over -40°C to 125°C and is qualified for automotive applications. A programmable logic device is an integrated circuit whose logic function is defined by the user after manufacturing. In the TPLD family, InterConnect Studio is used to configure the non-volatile memory, either by emulating OTP memory or permanently programming the one-time programmable fuse. PLDs sit between standard fixed-function logic and large CPLDs/FPGAs, providing a compact, low-power way to integrate glue logic, timing, reset, power sequencing, and I/O expansion functions. Key features include 18 GPIOs, 14 macrocells, and a configurable I2C/SPI port for system communication and in-system configuration. The 2/3/4-bit LUT macrocells allow flexible combinatorial logic; sequential blocks support timers, delays, and state machines. The wide 1.71V to 5.5V supply range permits operation from Li-ion batteries, 3.3V rails, or 5V industrial buses, and the -40°C to 125°C temperature range covers automotive and industrial environments. The device's analog blocks provide voltage monitoring and reset generation, eliminating external supervisor ICs. Its low power and compact 20-VSSOP package make it suitable for space-constrained designs. Because logic functions are configured in the OTP memory and the same base part can be used across many designs, inventory can be consolidated. The selectable I2C/SPI port also allows integration into microcontroller-based systems for status readback or dynamic reconfiguration when the non-volatile logic is emulated. Typical applications include timing delay generation, voltage monitoring and reset generation, power sequencing, I/O expansion, and glue logic consolidation in automotive body electronics, industrial sensors, and consumer devices. Designers can use InterConnect Studio to implement and simulate logic before programming. When designing with TPLD2001, plan the OTP programming step during production and verify I/O assignments before programming, because OTP cannot be changed after the permanent fuse is blown.

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TPS2371D

TPS2371D - IEEE 802.3af PoE Power Interface Switch | TI

The Texas Instruments TPS2371D is an IEEE 802.3af-compatible power interface switch for Power over Ethernet powered devices, with an 8-pin SOIC package. It is designed for PoE powered-device front ends that require controlled power delivery from an Ethernet connection. The verified listing identifies the device as a specialized power interface switch with a nominal 48 V supply context, CMOS technology, eight terminals, and a 1.27 mm terminal pitch. A power interface switch is the input-side protection and power-management circuit between an Ethernet cable and a PoE powered device. Its role is to establish the power path, protect the downstream system from unsuitable input conditions, and support the current and voltage limits associated with legacy IEEE 802.3af PoE systems. In system terms, it belongs to the power-management IC hierarchy and the broader PoE interface ecosystem. The main verified characteristics are legacy IEEE 802.3af compatibility, operation in the PoE power domain, an 8-terminal surface-mount SOIC format, and a listed maximum operating temperature of 70 °C. The distributor record also identifies a 57 V-related comparison context, while the supplied Partstack result lists 48 V nominal voltage. These figures should be checked against the manufacturer datasheet before final design release because the search snippets do not provide the complete electrical characteristic table. Typical uses include PoE-powered IP cameras, network access points, VoIP phones, industrial Ethernet endpoints, and other powered devices connected through an Ethernet infrastructure. The device is appropriate when the design uses the legacy 802.3af power interface concept and the existing board uses the TPS2371D pin arrangement. It is not a generic USB power switch or a complete PoE PD controller; neighboring devices with similar package names may serve different voltage, current, or protection functions. For PCB implementation, place the switch close to the Ethernet input and power-entry components, maintain the datasheet-defined spacing for high-voltage copper, and provide the required input and output decoupling. Confirm absolute maximum ratings, operating voltage, current limit behavior, thermal conditions, and exposed-lead connections from the official TPS2371 documentation before applying it to a new design. This page consolidates verified distributor availability, manufacturer positioning, package information, procurement data, and design cautions for engineers evaluating TPS2371D replacements or PoE front-end implementations.

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TPS2371DR

TPS2371DR - IEEE 802.3af PoE PD Interface | Texas Instruments

The Texas Instruments TPS2371DR is an IEEE 802.3af-compatible power interface switch for Power over Ethernet powered devices, with integrated hot-swap and power-distribution functions in an 8-pin SOIC package. It provides a PD detection signature, class 0-4 classification signature, precision undervoltage lockout, a 20-ms UVLO off-time delay, and programmable inrush-current limiting. A Power over Ethernet powered-device interface is the circuit that receives power through an Ethernet cable, identifies the attached load, negotiates its power class, and safely connects that power to the local system. In the power hierarchy, a PD interface sits between the PoE supply and the powered equipment’s DC/DC converter or load. It prevents an unsupported or improperly connected network port from receiving unsafe power. The TPS2371DR’s principal engineering benefits are its IEEE 802.3af compatibility, integrated protection, and autonomous interface operation. The device provides both detection and classification signatures, eliminating separate handshake circuitry in many conventional PoE PD designs. Its internal hot-swap MOSFET helps control connection transients, while the programmable inrush limit reduces the stress applied to downstream capacitance and power circuitry. The chip also uses precision UVLO thresholds to distinguish valid operating conditions and includes a defined 20-ms off-time delay after UVLO. That delay provides controlled recovery before the interface attempts another valid operating state. As an 8-SOIC surface-mount device, the TPS2371DR supports compact PoE endpoint designs without requiring a large connector-side or board-edge package. Typical uses include IP cameras, VoIP phones, wireless access points, network switches, powered network adapters, and other low- to moderate-power Ethernet endpoints. These products can use the TPS2371DR when IEEE 802.3af behavior and a conventional eight-pin PoE PD interface are required. For higher-power or newer PoE standards, designers should verify the exact PSE, PD, class, voltage, and protection requirements before selecting this legacy-compatible device. Layout should keep the Ethernet input and power-path nodes physically separated from sensitive downstream electronics, and it should provide appropriate copper area for thermal dissipation during sustained power transfer. Component values must follow the manufacturer’s reference design because the programmable inrush and protection network determine startup behavior. The interface also requires correct grounding and protection placement to avoid allowing transient current into sensitive ports. This page consolidates the verified manufacturer, distributor, pricing, lifecycle, and replacement information for TPS2371DR, while clearly separating confirmed specifications from unavailable electrical details. It also provides application guidance and drop-in alternatives where the available cross-reference evidence supports pin and package compatibility.

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TPS25810ATWRVCRQ1

TPS25810ATWRVCRQ1 - Automotive 3A USB-C DFP Controller | TI

The Texas Instruments TPS25810ATWRVCRQ1 is an automotive USB Type-C downstream-facing port controller and power switch with digital cable compensation, a 3 A rated integrated USB power switch, and a 20-pin WQFN RVC package measuring 3 mm by 4 mm. It supports an operating temperature range of -40°C to 125°C and is positioned for automotive USB Type-C applications requiring integrated Type-C source control and power-path management. A USB Type-C DFP controller is an interface IC that coordinates USB Type-C connection orientation, advertises source capabilities, and manages the attached USB power path. Within the product hierarchy, it belongs to the USB Type-C controller class, then interface ICs, then semiconductor devices. By combining protocol control and a rated power switch in one package, the device can reduce the component count associated with automotive USB-C source ports while keeping connection and power-delivery functions together. The TPS25810A-Q1 family provides an integrated 3 A rated USB power switch, digital cable compensation, and Type-C source-controller functionality. Its automotive-qualified ordering designation identifies it for harsh operating environments. The 20-pin RVC WQFN package offers a compact surface-mount footprint, while the specified -40°C to 125°C range supports use across industrial temperature conditions common in vehicle electronics. Digital cable compensation is the principal differentiating function highlighted in the verified manufacturer materials. It allows the controller to address voltage-drop behavior associated with connected cables, helping the source side manage the electrical conditions of the USB Type-C link more effectively. The integrated switch also provides a defined current-handling point between the supply rail and the USB-C port, reducing the need for separate discrete protection and power-path elements in suitable architectures. Typical uses include automotive USB Type-C charging ports, vehicle infotainment connectivity, rear-seat accessory power, diagnostic interfaces, and USB-C service connections. The controller-and-switch combination is particularly useful where a compact source port is needed without allocating a separate Type-C controller and power switch. Vehicle designers must still verify connector requirements, cable current ratings, automotive qualification requirements, and system-level protection for every production design. When laying out the TPS25810ATWRVCRQ1, place the device and its required support components close to the USB Type-C connector and minimize high-current trace lengths. Validate connector, cable, and switch thermal performance under sustained load because a 3 A switch rating does not remove connector or wiring limitations. Confirm all pin functions against the current TI datasheet before layout release, as the verified excerpts do not provide the complete RVC pin map. This page combines the verified TI and distributor product information, package details, application guidance, and same-package replacement analysis for TPS25810ATWRVCRQ1. It also identifies engineering details that require confirmation from the full manufacturer datasheet rather than substituting assumptions for missing electrical, pinout, pricing, or compliance data.

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TPS25810TWRVCRQ1

TPS25810TWRVCRQ1 - 3A USB Type-C DFP Controller | Texas Instruments

Texas Instruments TPS25810TWRVCRQ1 is an automotive USB Type-C Rev. 1.2 downstream-facing port controller with an integrated 3 A power switch, load detection, and VCONN support in a 20-pin WQFN (RVC) package. The device is intended for USB Type-C source applications requiring configuration-channel control, port-attachment detection, and power-path switching. Its specified automotive operating-temperature range is -40°C to +105°C. A USB Type-C controller, also called a USB Type-C port controller, is a specialized interface IC that manages the configuration channel, commonly called CC, on a USB Type-C connector. Within the product hierarchy, it belongs to interface ICs and USB interface controllers. The downstream-facing-port role means the controller manages a port that supplies power and data-oriented Type-C behavior toward an attached upstream-facing port or cable. The TPS25810-Q1 family combines several functions in one device. It monitors the CC lines to determine when a Type-C attachment is present, integrates a power switch rated at 3 A, and includes load-detection capability. The verified product information also identifies VCONN functionality. When an electronically marked upstream-facing-port cable is attached, the controller can apply VCONN power to the cable's CC pin, supporting powered Type-C cables and attached accessories. The automotive grade distinguishes this orderable part from the commercial TPS25810 family option. The TPS25810TWRVCRQ1 is specified for -40°C to +105°C operation and uses the 20-terminal RVC WQFN package. The distributor listing identifies the package as 20-WQFN in a 3 mm by 4 mm footprint, while the manufacturer's ordering information identifies the package as WQFN (RVC). Typical uses include automotive USB Type-C charging ports, vehicle infotainment connections, USB Type-C docking interfaces, and downstream-facing ports that must identify attached accessories before enabling the power path. The integrated switch can reduce the external component count compared with a standalone Type-C controller and discrete power switch, although the final circuit still requires correct input protection, output discharge behavior, thermal layout, and connector wiring. Designers should follow the manufacturer's recommended application schematic and verify connector compatibility, CC pull-up or pull-down requirements, VCONN power limits, and exposed-pad soldering. Because the target is a downstream-facing-port controller, system-level USB data routing, host or device role implementation, and USB-PD policy must be confirmed against the complete product requirements rather than inferred from the controller alone. This page consolidates verified manufacturer and distributor information with package, interface-function, selection, and design guidance. It distinguishes documented facts from parameters that require confirmation from the full Texas Instruments datasheet, avoiding unsupported substitute, pinout, and pricing claims.

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TPS25820DSSR

TPS25820DSSR - USB-C Source Controller, 1.5A VBUS | Texas Instruments

The Texas Instruments TPS25820DSSR is a USB Type-C source controller and integrated 1.5 A VBUS power switch with VCONN support, housed in a 12-pin WSON (DSS) package. The device is designed for USB Type-C source applications that require Type-C attach detection, source-role control, VBUS current limiting, and an integrated power path. According to the Texas Instruments product and distributor information, the TPS25820DSSR operates from a 4.5 V to 5.5 V supply range and supports an operating temperature range from -40 °C to 125 °C. Its USB Type-C source-controller function is intended to simplify implementation in adapters, chargers, docks, and other USB-C power-delivery products. A USB Type-C source controller is a specialized interface and power-management IC that manages the behavior of a USB Type-C port when the device acts as a source or downstream-facing port. The TPS25820DSSR combines USB Type-C source detection and contract logic with an integrated 1.5 A VBUS switch, allowing a system to supply power to a connected USB-C sink while protecting the port against excessive current. In the broader component hierarchy, it belongs to the USB interface IC and power-management IC families rather than being a general-purpose logic device or standalone discrete MOSFET. The primary headline specifications are a 4.5 V to 5.5 V operating supply range, integrated 1.5 A VBUS power-switch capability, and a 12-WSON DSS package. The package is only 12 pins and is suitable for compact power-adapter and peripheral designs. The operating temperature range of -40 °C to 125 °C supports use across consumer, industrial, and temperature-qualified equipment, subject to the complete manufacturer datasheet for electrical limits and qualification details. The device also provides VCONN support, which is important for applications that need controlled VCONN behavior. TPS25820DSSR is positioned as a simple USB Type-C controller rather than a full USB Power Delivery policy engine. The Texas Instruments product page describes it as a USB Type-C source controller with an integrated 1.5 A USB VBUS power switch, while the TPS25820 evaluation module provides reference circuitry for evaluating the controller. Designers should therefore verify the required USB Type-C behavior, sink advertisement method, VCONN implementation, and fault-handling requirements against the datasheet before finalizing a product architecture. Typical uses include USB-C wall adapters, charging cables and power modules, docking stations, laptop and tablet charging accessories, industrial USB-C power supplies, and compact USB-C peripheral designs. The integrated switch can reduce the number of external power-path components when the design requires a modest 1.5 A source capability. A designer selecting a higher-current USB-C source solution would need a different controller and power-switch architecture rather than assuming that TPS25820DSSR can deliver more than its specified 1.5 A. The principal design consideration is the relationship between the external USB-C connector, input supply, output power path, and the controller's internal protection functions. The input supply must remain within the verified 4.5 V to 5.5 V range, and layout should minimize high-current loop area between the switch, connector, and capacitors. Decoupling, current-limit behavior, VCONN routing, thermal performance, and the exposed-pad grounding requirements must be checked in the manufacturer datasheet and evaluation-module layout. This product summary combines verified manufacturer and distributor information, package and application context, comparison guidance, and practical implementation notes to help engineers evaluate TPS25820DSSR for USB Type-C source designs beyond a basic catalog description.

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TPS3430WQDRCRQ1

TPS3430WQDRCRQ1 - Automotive Window Watchdog | Texas Instruments

Texas Instruments TPS3430WQDRCRQ1 is an automotive window watchdog timer with programmable watchdog window and programmable watchdog reset delay, supplied in a 10-VSON package measuring 3.00 mm by 3.00 mm. The device is designed to supervise automotive electronic systems by detecting both late service activity and activity outside a configured timing window. Its operating-temperature range is -40°C to +125°C, and the package uses wettable flanks for optical inspection. A window watchdog timer is a specialized form of watchdog timer that requires the monitored system to toggle its service signal within both an upper and lower timing boundary. Unlike a conventional timeout-only watchdog, a window watchdog can identify both a frozen system and operation that occurs too quickly. This makes it valuable in automotive controllers where correct task scheduling and deterministic control-loop activity must be verified. The TPS3430-Q1 family provides programmable watchdog timing and programmable reset delay. Its SET pins can disable the watchdog during development or power-on sequences, preventing unintended timeout events before the monitored application is ready. The small 3.00 mm × 3.00 mm 10-VSON package supports compact automotive control modules while wettable flanks improve assembly inspection. The TPS3430WQDRCRQ1 belongs to the clock and timing IC hierarchy as a supervisory timing device. Its watchdog window mechanism operates alongside the host processor rather than replacing it: the host must service the watchdog within the permitted interval, while the timer supplies a fault indication when service is missing, too early, or too late. The programmable reset delay adds a controlled response interval after a watchdog event. Typical uses include automotive body controllers, motor-control modules, battery-management systems, electronic control units, and other safety-relevant embedded platforms. Its -40°C to +125°C rating and automotive-oriented ordering designation make it suitable for designs operating across extended industrial temperatures. For automotive production designs, engineers should also verify the complete device qualification and documentation package rather than relying only on the ordering code. PCB implementation should place the watchdog and its associated bypass capacitor close to the host controller and power-entry circuitry. Keep the monitored service signal away from noisy power and switching-node routing, and validate both reset polarity and timeout behavior in the complete firmware state machine. The watchdog must remain disabled only during controlled startup or programming intervals. This page consolidates the verified manufacturer and distributor information, distinguishes the automotive window watchdog function from ordinary timeout devices, and provides practical selection, comparison, and design guidance. Exact electrical limits, threshold ranges, pin functions, qualification details, and volume pricing should be confirmed against the current manufacturer documentation before design release.

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TPS3700DDCR2

TPS3700DDCR2 - 18V Window Comparator | Texas Instruments

The Texas Instruments TPS3700DDCR2 is an 18 V window voltage detector with two high-accuracy comparators, an internal 400 mV reference, and two open-drain outputs rated to 18 V, packaged in the 6-pin SOT-23-THIN package. It monitors supply voltages from 1.8 V to 18 V and supports overvoltage and undervoltage detection. A window voltage detector compares a monitored supply against internally generated upper and lower thresholds. It can operate as a two-channel window comparator or as two independent voltage monitors. This device belongs to the comparator hierarchy, combines a voltage detector function with a precision internal reference, and sits within the broader power management semiconductor and system monitoring categories. The TPS3700DDCR2 provides two separate open-drain indication outputs, allowing a system to identify both undervoltage and overvoltage conditions. Its 18 V output rating supports monitoring applications above the voltage range commonly handled by basic low-voltage comparator ICs. The internal 400 mV reference provides the basis for externally programmed detection thresholds. Both comparators include built-in hysteresis according to the manufacturer product information. Hysteresis helps reject brief input disturbances and improves output stability when the monitored voltage is close to a threshold. The device can be configured through external components for different supply ranges, reducing the need for a separate precision reference when the application requires upper and lower fault detection. Typical uses include industrial equipment monitoring, battery-powered systems, communication equipment, consumer electronics, and power rails where the system must disable downstream circuitry during an invalid voltage condition. The two independent outputs can also support separate fault-reporting paths in redundant or multi-rail architectures. When designing the circuit, calculate the resistor-defined upper and lower thresholds against the monitored input range, and verify that every pulled-up open-drain output remains below its 18 V rating. The SOT-23-THIN package also requires careful PCB layout and thermal review when the surrounding circuitry or board raises the device temperature. This product page combines verified manufacturer and distributor information with pin-compatible alternatives, parameter comparisons, application guidance, and practical design notes so engineers can evaluate the TPS3700DDCR2 alongside replacement options without treating merely similar supervisors as exact drop-in parts.

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TPS3700DDCT

TPS3700DDCT - 18V Window Comparator | Texas Instruments

The Texas Instruments TPS3700DDCT is an 18 V window voltage comparator with a 400 mV internal reference, two open-drain outputs, and a 6-pin SOT-23-THIN package. It operates from 1.8 V to 18 V and monitors one rail for overvoltage and undervoltage conditions. Its adjustable thresholds can extend detection down to 400 mV, while the open-drain outputs are rated to 18 V. A window comparator is a voltage supervisor that combines two threshold comparisons around a monitored signal. It belongs to the comparator and power-management IC hierarchy, where it is used to identify when a supply enters an allowed operating window or exits it because of an excessive low or high condition. The TPS3700 can therefore operate as a combined window detector or as two independent voltage monitors. Key features include a wide 1.8 V to 18 V supply range, threshold accuracy of -1.0% over temperature, 0.25% typical threshold accuracy, and 5.5 uA typical quiescent current. The two open-drain outputs can be pulled up to an external voltage up to 18 V. Built-in hysteresis helps reject brief glitches and maintain stable outputs, while external resistors set the monitored voltage range. The TPS3700DDCT uses two high-accuracy comparators and an internal 400 mV reference. One comparator monitors the lower threshold and the other monitors the upper threshold, allowing detection of undervoltage and overvoltage separately. The monitored voltage is scaled with external resistors, making the device suitable for systems where the rail is higher than the internal reference. Typical applications include industrial 24 V input-bus monitoring, battery-pack protection, DC power-supply fault detection, load-switch sequencing, and embedded systems that require a hardware voltage supervisor. Its low quiescent current is useful in battery-powered equipment, while the 18 V operating range supports higher-voltage industrial rails. When designing the circuit, choose resistor values to keep the sense-node voltage within the comparator input limits and use pull-up resistors appropriate for the open-drain outputs. Confirm the logic polarity of both outputs in the system controller because a fault indication can require inversion. Review the manufacturer datasheet for threshold, hysteresis, input-current, and absolute-maximum details before finalizing the PCB layout.

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TPS3700DSET

TPS3700DSET - 18V Window Voltage Detector | Texas Instruments

The Texas Instruments TPS3700DSET is a high-voltage (18 V) window voltage detector for overvoltage and undervoltage monitoring, featuring two high-accuracy comparators with an internal 400 mV reference and two open-drain outputs rated to 18 V. It is offered in a 6-pin WSON package measuring 1.5 mm x 1.5 mm with a propagation delay of 29 us (maximum). A window voltage detector is a type of voltage supervisor or comparator circuit that monitors an input rail and asserts an alert whenever the rail falls outside a programmer-defined upper and lower threshold. It belongs to the broader family of comparators (amplifier ICs) which sit within power management ICs, and is commonly used as a safety watchdog in microprocessor and DSP power systems. Compared to single-threshold comparators, the window detector adds redundancy by failing-fast on both excursions, which is critical for ASIC rails, battery stacks, and industrial 24 V systems. Key features include a wide supply voltage range of 1.8 V to 18 V, threshold accuracy of 1.0% over temperature (0.25% typical), a low quiescent current of 5.5 uA typical, and built-in hysteresis on both comparators to reject brief glitches without false triggering. The monitored thresholds are set via external resistor dividers referenced to the internal 400 mV band-gap, and the two open-drain outputs can be pulled up to as high as 18 V for direct interface to logic rails or opto-isolators. The TPS3700DSET uses a CMOS architecture with a precision bandgap reference and twin comparators, giving it a clean offset and temperature-stable trip point across the -40C to +125C junction temperature range. The wide supply tolerance also lets it operate directly from 12 V and 15 V industrial rails without pre-regulation. Typical applications include overvoltage and undervoltage monitoring on 12 V industrial rails, battery-pack protection in multi-cell stacks, system reset generation for DSPs and microcontrollers, fault detection in PLC and motor-drive systems, and redundant safety supervision in medical and automotive subsystems. When designing with this device, choose the resistor divider ratio so the monitored voltage equals 400 mV at the desired trip point; hysteresis is fixed by internal design, but selection of the resistor network affects overall accuracy and input bias current error. This page consolidates verified distributor pricing, drop-in alternatives, and practical design notes for engineers evaluating the TPS3700DSET as a window supervisor.

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TPS3701DDCR

TPS3701DDCR - 36V Window Comparator | Texas Instruments

The Texas Instruments TPS3701DDCR is a 36 V window voltage comparator with an internal 400 mV reference, two open-drain outputs, and a 1.8 V to 36 V supply range, packaged in a 6-pin SOT-23-THIN. It monitors overvoltage and undervoltage conditions in industrial, embedded, and power-management systems. The two precision comparators can operate together as a window detector or independently as two voltage monitors, while external resistors set the monitored thresholds. A window comparator is a specialized voltage-monitoring IC that compares an input voltage against programmed upper and lower limits. Unlike a simple power-supply supervisor, this device combines two precision comparators, a low-power 400 mV reference, and separate fault outputs. It belongs to the broader hierarchy of comparator, voltage supervisor, power-management IC, and semiconductor categories. Its open-drain outputs can pull fault lines or enable signals low and may be wired for wired-AND behavior when required by the system architecture. Key features include a wide 1.8 V to 36 V supply operating range, thresholds adjustable down to 400 mV, low typical quiescent current of 7 microamperes, and high threshold accuracy. The outputs, identified as OUTA and OUTB, are rated to 25 V for overvoltage and undervoltage signaling. The monitored voltage is established with external resistor networks, allowing the same device to address different system rails without changing the comparator package. The TPS3701 architecture is useful when a system must distinguish a valid operating window from an unsafe condition. Two open-drain outputs provide separate information for undervoltage and overvoltage events, helping a controller, protection circuit, or system-management block respond without interpreting a single ambiguous fault signal. The internal reference improves repeatability when the monitored rail is divided down to the reference range. Typical applications include industrial control systems, embedded power rails, battery-powered equipment, power-supply sequencing, automotive-style voltage supervision, and general overvoltage or undervoltage protection. The 36 V supply capability is useful for systems whose monitored rails exceed conventional low-voltage logic levels, while the open-drain outputs allow flexible pull-up selection and interface-level adaptation. When designing the circuit, verify the external resistor divider limits, open-drain pull-up voltage, monitored-voltage range, and output timing before connecting the device. The 6-pin SOT-23-THIN package requires careful placement and adequate copper area. Because the outputs are open-drain, each line needs an appropriate pull-up unless it is intentionally connected to another open-drain node. This page combines manufacturer specifications, distributor availability information, application guidance, and verified replacement analysis. It is intended to help engineers identify whether the TPS3701DDCR fits a voltage-window monitoring design and to distinguish genuine same-footprint replacements from parts that only provide similar monitoring functions.

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TPS3701DDCT

TPS3701DDCT - 36V Dual Window Comparator | Texas Instruments

The Texas Instruments TPS3701DDCT is a dual window voltage detector with two precision comparators, a 400 mV internal reference, and two open-drain outputs rated to 25 V, packaged in a 6-pin SOT-23-THIN configuration. It operates from 1.8 V to 36 V and is designed for overvoltage and undervoltage monitoring. A window comparator is a voltage detector that checks whether an input voltage lies between programmable upper and lower thresholds. Unlike a general-purpose comparator, this device integrates two comparison channels and a reference, allowing one IC to monitor both rail boundaries. In the power-management hierarchy, it belongs to the comparator and voltage-supervisor family rather than a power-regulator family. Key features include the 1.8 V to 36 V supply range, a 400 mV internal reference, two open-drain outputs, and monitoring flexibility through external resistor networks. The open-drain outputs can be pulled up to an appropriate external voltage, allowing wired interface use and flexible system-level signaling. Reported low quiescent current is approximately 7 µA typical, making the device suitable for low-power monitoring systems. The TPS3701 can operate as a window detector or as two independent voltage monitors. The monitored thresholds are established with external resistors, while the internal reference provides the comparison basis. Its high-voltage operating range allows monitoring of industrial supplies and other rails where input transients or nominal voltages exceed the range of simpler low-voltage supervisors. Response time is reported in distributor data as approximately 155 µs. Typical applications include industrial automation, battery systems, power-supply protection, sensor interfaces, and embedded control systems. It is especially useful when a system must assert separate fault signals when a monitored voltage becomes too high or too low. Because the outputs are open-drain, pull-up resistors are required unless the output is connected directly to a compatible pull-up arrangement. Designers should verify the full datasheet pinout, threshold tolerances, timing, output ratings, and capacitor or resistor recommendations before production. The SOT-23-THIN footprint supports compact layouts, but the open-drain pins and monitor-input network require careful routing. For replacements, compare the complete pinout and threshold architecture rather than selecting a part only by supply voltage or package name. This page combines verified manufacturer information, distributor pricing references, and practical design guidance.

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TPS4141-Q1

TPS4141-Q1 - 1200V Configurable Divider | Texas Instruments

The Texas Instruments TPS4141-Q1 is a high-voltage precision matched resistor divider with an integrated programmable-gain amplifier (PGA), designed for accurate high-voltage measurement in automotive and industrial applications. The device supports input voltages up to 1200V and provides four configurable divider ratios via the DIV0 and DIV1 inputs. It is available in a 10.30mm × 10.30mm SOIC-11 (DWQ) package, optimized for space-constrained automotive systems. A high-voltage precision resistor divider is a specialized analog front-end IC that scales high-voltage inputs down to a safe range for downstream ADC or microcontroller measurement. It combines matched precision resistors with a PGA to maintain accuracy across temperature and voltage extremes, eliminating the need for discrete resistor networks and trimming. This architecture reduces board area and improves measurement reliability in high-voltage environments. The TPS4141-Q1 integrates a high-voltage switch that connects or disconnects the high-voltage sense pin, providing uni-directional current blocking when disconnected. The programmable-gain amplifier supports four divider ratios using DIV0 and DIV1, enabling flexible measurement scaling for different voltage ranges. External precision reference voltage can be supplied from REF to HVGND for bi-directional voltage measurement, and switching between uni-directional and bi-directional sensing during operation is possible. The device is AEC-Q100 qualified for automotive applications, ensuring robust performance over a wide temperature range. Its high-voltage capability and integrated switch make it suitable for battery management systems, traction inverters, and industrial motor drives where precise voltage monitoring is critical. The integrated PGA and matched resistors provide high accuracy, reducing system calibration overhead. Typical applications include electric vehicle battery pack voltage monitoring, solar inverter DC bus sensing, and industrial 24V/48V system voltage measurement. The high-voltage switch allows the sense line to be disconnected for safety or power saving, while the divider ratios allow the same device to serve multiple voltage ranges. Designers should ensure proper PCB clearance and creepage distances for 1200V operation, and use the external REF for bi-directional measurements when needed.

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