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製品 (118)
SLG7SQ47664V - Single-Channel Low-Power Sequencer | Renesas
The Renesas SLG7SQ47664V is a compact, single-channel, low-power simple sequencer IC housed in a 12-pin STQFN (1.6 x 1.6 mm) package with an exposed pad for thermal dissipation. It is built on Renesas' GreenPAK programmable mixed-signal platform and provides configurable time delays and trigger thresholds for accurate power-up sequencing across multi-rail systems. The device integrates two open-drain outputs that allow it to release a downstream voltage rail only after the upstream rail has stabilized, eliminating supply interaction and inrush faults during turn-on. A power management sequencer is an integrated circuit that monitors a primary voltage rail and asserts a secondary enable signal with a programmable delay once that rail crosses a user-defined threshold. Sequencers sit in the supervisory sub-tree of the broader Power Management category between reset/supervisor ICs and full PMICs, providing a simpler, smaller, and lower-cost solution when only turn-on ordering is needed rather than full multi-rail voltage regulation. Key features of the SLG7SQ47664V include a single sequencing channel with two open-drain outputs, configurable time delay blocks, selectable trigger thresholds for detecting power-good events on the monitored rail, and ultra-low quiescent current consumption tailored for battery-powered designs. The small STQFN-12 footprint occupies only 2.56 mm² of board area, making it appropriate for dense PCB layouts such as wearables, SSDs, and IoT sensor modules. Technically, the part is designed and verified through the GreenPAK Designer toolchain, which lets engineers program the timing thresholds and delay values without dedicated firmware. Hysteresis on the comparator input prevents chattering near the threshold, and the open-drain output stage lets the device pull either a 3.3 V or 5 V logic rail up to its maximum rated voltage regardless of the IC's own supply. Typical applications include multi-rail FPGA and SoC power-up sequencing, SSD controller bias-voltage ordering, and battery charging pre-bias protection in portable electronics. The 12-pin STQFN package supports reflow profiles up to 260 °C peak and is compatible with standard lead-free assembly. When designing in the SLG7SQ47664V, ensure that the pull-up resistors on the open-drain outputs are referenced to the correct downstream rail and that the timing capacitor or internal delay setting is chosen to allow the upstream regulator to stabilize before the next rail is enabled. The exposed thermal pad must be soldered to a ground copper pour of at least 0.5 cm² to meet the rated power dissipation. This page consolidates Renesas product information, distributor pricing, same-brand drop-in package alternatives, and practical design notes not aggregated in the manufacturer datasheet, giving engineers a self-contained reference for selecting and applying the SLG7SQ47664V.
SLG7WD47666 - Configurable GreenPAK Watchdog Timer | Renesas
The Renesas SLG7WD47666 is a low-power, configurable watchdog timer in a 1.0 mm x 1.2 mm 8-pin STQFN package that supervises microprocessor activity and triggers a reset or interrupt when code execution stalls. According to the Renesas product page, it operates from a 2.5 V to 5.5 V supply, draws 9 uA typical quiescent current, and supports a -40C to +85C industrial temperature range, making it suitable for always-on supervisory roles in space-constrained designs. A watchdog timer is a hardware supervisory circuit that monitors a host microprocessor by requiring the firmware to periodically toggle a watchdog input (WDI) within a defined timeout window. If the host code hangs, crashes, or enters an unintended loop, the watchdog will not receive a valid WDI pulse before timeout and will assert a reset or interrupt to recover the system. Watchdog timers are a subclass of supervisors and reset ICs within the broader power management IC family, sitting alongside voltage supervisors, POR (power-on reset) generators, and battery-backup supervisors. Key features of the SLG7WD47666 include a configurable watchdog timeout (selectable via the GreenPAK design environment), an active-low enable pin (nEN) for external on/off control, an open-drain/open-collector output stage capable of pulling a reset line low, and ultra-low 9 uA quiescent current that lets the device stay powered while the rest of the board is asleep. The 1.0 mm x 1.2 mm STQFN footprint is among the smallest watchdog packages available and fits comfortably next to a microcontroller or SoC on a high-density PCB. Internally the device is implemented with Renesas GreenPAK programmable-mixed-signal technology, meaning many of the timing thresholds and logic behaviors are mask-defined at the time of order rather than fixed at silicon tape-out. From a system perspective the SLG7WD47666 adds a hardware safety net against firmware lock-ups without burdening the host CPU with software watchdog complexity. Typical applications include IoT sensor nodes, wearable health monitors, battery-powered remote controls, consumer white goods, and any portable or battery-operated product where a runaway firmware state could leave the system unresponsive. It is also used as a low-cost supervisor for low-end microcontrollers that lack an internal watchdog block. When designing with this part, place it as close as possible to the host MCU to minimize trace inductance on the WDI line, and add a pull-up resistor on the open-drain reset output sized according to the line capacitance. Because the timing is mask-configured at order time, confirm your selected timeout window against the worst-case firmware main-loop period before committing to the part number.
TC1232EOA - Processor Supervisor w/ Watchdog | Microchip
The Microchip Technology TC1232EOA is a fully-integrated microprocessor monitor that combines precision power-on reset control, a watchdog timer, and external reset override in a single 8-pin SOIC package. According to the manufacturer datasheet, the device monitors a single supply rail with a factory-trimmed threshold range of 4.5 V to 4.75 V and asserts an active-low reset output for a minimum of 250 ms after VCC stabilizes above the threshold. The reset output is open-drain or open-collector, allowing wired-OR connection with other system reset sources. What is a microprocessor supervisor? A microprocessor supervisor (also called a voltage supervisor or reset IC) is a dedicated power management IC that protects a microprocessor or microcontroller from undervoltage, brownout, and code-execution faults. It sits in the power management hierarchy between the DC-DC converter or LDO (which provides the rail) and the MCU itself, forming the third tier of protection after voltage regulation and input protection. Supervisors are essential where deterministic boot behavior and watchdog enforcement are required, distinguishing them from simple comparators or POL converters. Key features of the TC1232EOA include an adjustable watchdog timebase of 150 ms, 600 ms, or 1200 ms selectable via the TD pin, no requirement for external timing components, and a low quiescent supply current that minimizes battery drain. The PBRST input allows an external push-button or system controller to force a manual reset without an additional debounce circuit. The wide operating supply range of 1.2 V to 5.5 V makes it compatible with both 3.3 V and 5 V microprocessor families. Technically, the TC1232EOA uses a precision bandgap reference combined with a comparator to detect undervoltage conditions with tight threshold accuracy across the full industrial temperature range. The internal watchdog state machine expects a negative-going edge on the ST input within the selected timeout window; if no edge arrives, /RESET is asserted. The watchdog is fully disabled by tying TD to VCC, simplifying BOM on boards that do not require watchdog supervision. Typical applications include embedded MCU reset control, industrial PLC and sensor node brownout protection, automotive body controller watchdog supervision, point-of-sale terminal power supervision, and any battery-powered system that requires deterministic start-up after cold-boot or brownout recovery. Design consideration: choose the watchdog timeout based on the longest legitimate loop iteration in your firmware; setting it too short triggers spurious resets while setting it too long delays fault detection. Place the supervisor close to the MCU reset pin and use a 10 kohm pull-up on the open-drain reset line. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TCAN843-Q1 - 5Mbps CAN FD Transceiver Sleep | TI
The Texas Instruments TCAN843-Q1 is an automotive-grade, high-speed Controller Area Network (CAN) transceiver meeting the physical layer requirements of the ISO 11898-2:2024 high-speed CAN specification. It supports both classical CAN and CAN FD data rates up to 5 Mbps and is offered in 14-pin leaded (SOT and SOIC) and leadless (VSON) packages with wettable flanks for improved automated optical inspection (AOI). A CAN transceiver is the physical-layer interface between a CAN controller in a microcontroller and the differential twisted-pair bus. It converts logic-level TXD/RXD signals into differential CANH/CANL signals, providing the drive strength, fault tolerance, and noise immunity required in harsh automotive and industrial environments. Key features include 5 Mbps CAN FD support, four operating modes (normal, silent, standby, and low-power sleep), and a VIN pin tied to the microcontroller I/O supply that supports a 3.3V to 5.5V logic range. The INH output pin enables system-level battery-current reduction by selectively gating power supplies, allowing a low-current sleep state while the transceiver monitors the bus for wake-up frames. Protection features include thermal shutdown (TSD), TXD-dominant time-out (TXD DTO), load-dump support on VSUP, undervoltage protection, and CAN bus fault tolerance in 12V and 24V systems. The robust bus interface with high ESD tolerance ensures reliable operation in body electronics, gateways, and battery management systems. Typical applications include body control modules, gateway modules, battery management systems, and industrial transportation networks where always-on nodes must minimize quiescent battery drain while maintaining network responsiveness. When designing with the TCAN843-Q1, use proper 120-ohm bus termination, place the transceiver close to the connector to minimize stub length, and connect VIN to the microcontroller I/O supply to set the digital interface logic level.
TCKE501UL - 1A eFuse IC, 75mΩ, 1.7-5.5V | Toshiba | SOT-353F
The Toshiba TCKE501UL is a 1 A single-input single-output eFuse IC (electronic fuse) for advanced power-line protection, operating from 1.7 V to 5.5 V input with a typical on-resistance of 75 mΩ, housed in the small SOT-353F (UFV) package. An eFuse IC is a type of electronic circuit protector that replaces a traditional resettable fuse (PPTC) or discrete fuse circuit in a power distribution path. Within the power management IC hierarchy, the eFuse sits alongside hot-swap controllers and load switches as a protection device: it monitors input current and voltage, and disconnects the load when an overcurrent, short-circuit, or overtemperature event is detected, protecting both upstream supply and downstream load. Key features of the TCKE5 Series include adjustable overcurrent protection set by an external resistor on the ILIM pin, built-in short-circuit protection with fast response, and overheat (thermal) protection. The 75 mΩ typical on-resistance minimizes voltage drop and power loss at the full 1 A output current. The 1.7 V minimum operating voltage is a differentiating specification, supporting modern 1.8 V power rails used in low-voltage consumer, IoT, and portable designs. Architecturally, the TCKE5 Series integrates a sensing FET, control logic, and protection circuits in a single low-cost package. The UL suffix denotes the latch-type fault response variant of the family (the UA variant provides the auto-retry behavior), letting designers choose recovery behavior per system policy. Thermal protection shuts the internal FET off if die temperature exceeds the protection threshold, and the device acts as a reusable fuse across repeated fault events. Typical applications include USB device power-line protection, HDMI equipment, laptop PCs, gaming consoles, IoT equipment, and general-purpose power supplies. Wherever a 1.8 V to 5 V rail feeds an external connector or unprotected load, the TCKE501UL provides compact turnkey fault isolation. Design consideration: set the overcurrent threshold with the ILIM resistor per the datasheet equation, verify PCB copper area for thermal dissipation at sustained load, and follow the precautions detailed in the manufacturer datasheet for latch-type behavior. This page adds distributor-style comparison data, drop-in same-family alternatives, and practical design notes not found in the Toshiba datasheet.
TCKE502UA - 1.7-5.5V 1A eFuse IC 75mΩ SOT-353F | Toshiba
The Toshiba TCKE502UA is a single-input, single-output eFuse IC (electronic fuse) supporting line-voltage inputs from 1.7 V to 5.5 V with up to 1.0 A output current, an ultra-low typical on-resistance of 75 mΩ, housed in a compact 5-pin SOT-353F (UFV) surface-mount package. An eFuse IC is a solid-state circuit-protection device that functions as a resettable, reusable fuse within the power-management IC hierarchy. Unlike a one-time fusible link or a PTC resettable fuse, an eFuse integrates a MOSFET pass element, current-sense circuitry, and control logic in one IC, allowing designers to set precise overcurrent thresholds, block short-circuit faults within microseconds, and shut down on overtemperature. eFuses sit between the power source and the load, guarding hot-swap rails, USB ports, and low-voltage digital supplies. Key features of the TCKE502UA include adjustable overcurrent protection set by a single external resistor, fast short-circuit protection, thermal shutdown with automatic recovery behavior, and the low 75 mΩ on-resistance that minimizes voltage drop and conduction power loss at the full 1.0 A load. Its 1.7 V minimum input uniquely supports 1.8 V power rails used in modern low-voltage IoT devices, a capability highlighted in Toshiba's October 2026 launch announcement of the TCKE5 series. The TCKE5 series uses a simple single-channel architecture: the internal N-channel MOSFET pass device is controlled by protection logic, so external circuitry is limited to an ILIM-setting resistor and standard input/output decoupling capacitors. This reduces bill-of-material complexity compared with discrete hot-swap controller plus MOSFET solutions. The SOT-353F package saves board area versus larger eFuse options in WDFN or SOIC packages. Typical applications include consumer equipment, IoT devices, general-purpose power supplies, 1.8 V and 3.3 V rail protection on microcontroller boards, and hot-swap input protection for battery-powered portable products. Design consideration: size the external current-limit resistor so the trip threshold sits above the load's worst-case inrush and transient current, and verify thermal margins since 75 mΩ at 1.0 A dissipates an estimated 75 mW. This page adds information gain by synthesizing distributor availability data (Farnell/element14), the Toshiba TCKE5 datasheet, series-family drop-in alternatives, and practical design notes in one place.
TCKE502UL - 1A eFuse IC, 75mΩ, SOT-353F | Toshiba
The Toshiba TCKE502UL is a single-input, single-output eFuse IC (electronic fuse) supporting line-voltage inputs from 1.7V to 5.5V with an output current of up to 1.0A and a low on-resistance of 75 mΩ (typical), housed in the small SOT-353F (UFV) package. An eFuse IC is a reusable, resettable electronic circuit-protection device that replaces disposable fuses and discrete protection circuits in a power path. Positioned within the power management IC hierarchy (eFuse IC -> hot-swap protection IC -> voltage regulator family -> power management IC), it combines a power MOSFET switch with protection logic: when an overcurrent, short-circuit, or over-temperature event occurs, the device rapidly turns off the power path and can later be reset, protecting downstream loads such as SoCs, sensors, and wireless modules. Key features of the TCKE502UL include adjustable overcurrent protection set by a single external resistor, fast short-circuit protection, thermal shutdown, and a low 75 mΩ on-resistance that minimizes voltage drop and power loss at the full 1A load. The 1.7V minimum input makes it suitable for modern 1.8V rails, and the SOT-353F package occupies minimal board area for space-constrained designs. The TCKE5 Series is Toshiba's low-voltage eFuse family; the lineup comprises four products, TCKE501UA, TCKE501UL, TCKE502UA, and TCKE502UL, all housed in the SOT-353F (UFV) package, with suffix distinctions covering latch-type versus auto-retry behavior between the 501 and 502 variants. The low-voltage capability addresses the growing use of 1.8V power lines driven by miniaturization and lower power consumption in IoT and consumer equipment. Typical applications include IoT equipment power rails, consumer equipment, general-purpose power supplies, USB accessory ports, battery-powered portable devices, and post-regulator protection after DC-DC converters on 1.8V to 5V rails. When designing with this device, size the external ILIM resistor for the desired overcurrent threshold with margin above the maximum load current, and verify the thermal rise across the 75 mΩ on-resistance at continuous full load. This page synthesizes distributor availability data, same-series drop-in options, and practical design notes not found in the manufacturer datasheet. Pricing references are as of 2026-10-19.
TCKE712BNL,RF - 13.2V 5A eFuse IC WSON10 | Toshiba
The Toshiba TCKE712BNL,RF is a 13.2 V input single-input, single-output eFuse IC with an adjustable overcurrent limit, 56 mOhm on-resistance, and 5 A peak current capability, housed in a 10-pin WSON (WSON10) leadless package. It functions as a resettable, reusable electronic fuse for advanced circuit protection on 5 V and 12 V power rails. An eFuse IC (electronic fuse) is a type of power-management protection IC that sits in series with a supply rail and disconnects the load when fault conditions such as overcurrent, short circuit, overvoltage, or undervoltage occur. Unlike a one-time fuse, an eFuse can automatically or manually recover after a fault, making it a building block of modern power management IC architectures in servers, storage systems, IoT devices, and general-purpose power supplies. Key features of the TCKE712BNL include an adjustable overcurrent limit set by a single external resistor, adjustable overvoltage protection (OVP) and undervoltage lockout (UVLO), short-circuit fast-trip protection, and an adjustable output slew rate controlled by an external capacitor, which limits inrush current during hot-plug and capacitive load start-up. The device also integrates reverse current blocking (RCB) and a fault flag output for system-level fault reporting. Technically, the part operates from a 4.4 V to 13.2 V input range, covering 5 V, 9 V, and 12 V rails from a single orderable device. The internal low-RDS(on) power MOSFET (about 53-56 mOhm) minimizes voltage drop and conduction loss, while a controlled gate-slew architecture keeps source-to-load turn-on monotonic. Thermal shutdown protects the die under sustained fault conditions, and the flag pin signals fault state to the host controller. Typical applications include server backplane hot-swap protection, SSD and HDD storage rail protection, IoT node power-path protection, USB and 12 V accessory ports, and general-purpose industrial power supplies where a reusable fuse with adjustable trip points is preferred over discrete fuse plus supervisor circuits. A key design consideration: size the ILIM resistor so the minimum guaranteed current limit exceeds the worst-case load transient, and set the slew-rate capacitor to balance inrush limiting against acceptable startup time; excessive capacitance on the output increases startup duration. This page synthesizes distributor pricing, same-family drop-in alternatives, practical design notes, and comparison data not consolidated in the manufacturer datasheet, as of 2026-10-19.
TCKE712BNLRF - 13.2V 3.65A eFuse IC | Toshiba | Circuit Protection
The Toshiba TCKE712BNLRF is a 4.4V to 13.2V input eFuse IC (electronic fuse) with an internal 53 mOhm on-resistance power MOSFET, packaged in a compact 10-pin WSONB (WSON10, 3x3 mm) surface-mount package. The ,RF suffix indicates tape-and-reel delivery for automated assembly. An eFuse IC is a type of circuit protection IC - within the power management IC hierarchy - that combines the function of a fuse, hot-swap controller, and power switch in a single device. Unlike a one-time polyfuse or blade fuse, an eFuse can disconnect a load within microseconds when an overcurrent or overvoltage event occurs, then either latch off or automatically retry, depending on the variant. This makes eFuses the preferred protection element at the input of distributed power rails in servers, storage systems, and IoT equipment. Key features of the TCKE712BNL include a wide 4.4V to 13.2V operating input range that covers 5V and 12V rails, a low 53 mOhm RON per the Toshiba product page (Mouser lists 56 mOhm), integrated overcurrent protection with a current limit around the 3.65A class per Toshiba (5A per the Mouser listing), and built-in Flag output and RCB (rapid cycle bypass / control) functionality indicated by the B suffix. These features reduce external component count versus discrete fuse-and-controller solutions. Architecturally, the device integrates a sense element and control logic that monitors load current and input voltage, driving the internal MOSFET gate to clamp or disconnect the rail during fault conditions. The Flag pin reports fault status to a host controller for system-level diagnostics, while the controlled startup behavior limits inrush current into large downstream bulk capacitors during hot-plug events. Typical applications include server and storage backplane power-rail protection, consumer equipment DC input protection, IoT device power entry circuits, and general-purpose 5V/12V supply supervision - anywhere a fast, resettable, diagnostics-capable fuse is required. Design consideration: power dissipation equals I^2 x RON; at 3.65A the device dissipates roughly 0.75W (estimated from 53 mOhm), so PCB copper area on the exposed pad must be sized for thermal relief. This page synthesizes distributor pricing, verified datasheet parameters, and practical protection-design guidance not found in the raw manufacturer listing.
TLV803SDBZR - 2.93V Voltage Supervisor, SOT-23-3 | Texas Instruments
The Texas Instruments TLV803SDBZR is a 3-pin voltage supervisor (reset IC) with active-low, open-drain RESET output, fixed 2.93V threshold voltage, and 200ms typical reset delay, housed in a compact SOT-23-3 (DBZ) package. It is designed for circuit initialization and timing supervision primarily in DSP- and processor-based systems, asserting RESET when the supply falls below V_IT and holding it active for the timeout period after V_DD recovers above the threshold. A voltage supervisor (also called a reset IC or power-on reset generator) is a type of power management IC that monitors a system supply rail and generates a clean reset signal whenever the rail drops below a precise voltage threshold. Voltage supervisors sit within the broader hierarchy of supervisory circuits -> supervisors & reset ICs -> power management ICs -> semiconductor devices. They are essential building blocks for any microcontroller or DSP that requires deterministic startup behavior and brown-out protection, and they are distinguished from simple RC reset circuits by their tight threshold accuracy (typically ±1.5-2.5% over temperature) and defined reset pulse width. Key features of the TLV803SDBZR include a 2.93V factory-trimmed threshold voltage, 200ms fixed propagation delay, low quiescent current of 9 µA (typical), open-drain active-low RESET output that requires an external pull-up resistor, and a wide operating temperature range of -40 °C to +125 °C. The 3-terminal SOT-23-3 footprint minimizes board space, making it ideal for space-constrained designs. An internal voltage reference and comparator architecture ensures stable threshold detection across temperature and process variations. From a technical architecture standpoint, the TLV803SDBZR uses a precision bandgap reference combined with a comparator and timer block. The bandgap reference establishes the 2.93V trip point; the comparator continuously compares V_DD against this reference; when V_DD falls below V_IT-, RESET asserts and remains asserted until V_DD recovers above V_IT+ plus the 200ms timeout window. The open-drain output topology allows wired-OR connection with other reset sources and flexible interface to logic rails different from V_DD. Typical applications for the TLV803SDBZR include microcontroller and DSP brown-out protection, FPGA configuration voltage monitoring, portable battery-powered equipment reset supervision, industrial control systems, and IoT edge nodes. In each case, the 2.93V threshold suits 3.3V system rails where a drop below tolerance must trigger a controlled processor reset. When designing with this device, ensure the external pull-up resistor on the RESET pin is sized appropriately for the logic rail and capacitive load - too large slows the rising edge, too small wastes current. Place the device close to the IC it monitors to minimize trace inductance, and verify that decoupling at V_DD follows standard 0.1 µF ceramic placement guidelines. This page synthesizes distributor pricing, parametric drop-in alternatives, and practical reset-circuit design notes not found in the manufacturer datasheet.
TLV810MDBZT - 3-Pin Voltage Supervisor, Active-High Push-Pull Reset | Texas Instruments
The Texas Instruments TLV810MDBZT is a 3-pin voltage supervisor (reset IC) that asserts an active-high, push-pull RESET output whenever VCC falls below the factory-trimmed 4.38V threshold, packaged in a 3-pin SOT-23 (DBZ). It draws 9 µA typical supply current, supports a -40°C to +125°C operating range, and is pin-for-pin compatible with the industry-standard MAX810 footprint, enabling direct substitution in legacy designs. A voltage supervisor (reset IC) is a dedicated power-monitoring IC that holds a processor in reset until its supply rail is stable and within tolerance, preventing code-execution faults during power-up, brown-out, or power-down events. Voltage supervisors sit between the power management stage and the MCU/DSP, and form part of the broader power management hierarchy that includes voltage regulators, supervisors, and battery management ICs. By generating a deterministic reset pulse with a fixed 200 ms delay, the supervisor guarantees that the downstream processor boots only into valid code. The TLV810MDBZT features precision threshold options of 2.5V, 3V, 3.3V, and 5V, factory-trimmed to within tight tolerances. The 4.38V 'M' variant targets 5V systems with 12% nominal tolerance. The push-pull totem-pole output stage drives CMOS logic inputs directly without external pull-up resistors, simplifying board layout. The 200 ms fixed reset delay is internally generated and requires no external capacitor, reducing BOM count and improving reliability. Internally, the TLV810 uses a precision bandgap reference and comparator architecture to continuously compare VCC against the trimmed threshold. Hysteresis of 50 mV typical prevents chattering near the threshold, while ESD protection exceeds 2 kV HBM on all pins. The SOT-23-3 package occupies less than 10 mm² of board area, making the part ideal for space-constrained designs. Typical applications include DSP and microcontroller reset circuits in industrial controllers, portable battery-powered equipment, automotive infotainment modules, and any 5V logic system requiring reliable brown-out protection. The MAX810-compatible footprint also makes the TLV810 a modern replacement for aging legacy designs. When designing with this device, ensure VCC ramps monotonically and that decoupling capacitance of at least 0.1 µF is placed within 5 mm of the VCC pin. Note that the push-pull RESET output actively drives both high and low - a pull-up resistor must NOT be added externally, or contention and excess current will result. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
TPD3S714AQRVCRQ1 - Automotive USB 2.0 Protection IC | TI
The Texas Instruments TPD3S714AQRVCRQ1 is an automotive-grade single-chip USB 2.0 interface protection IC integrating short-to-battery protection, short-circuit protection, and ESD protection for the USB connector VBUS line (5.25 V, up to 500 mA) and the USB data lines, housed in a 16-pin WQFN (RVC) package and qualified to AEC-Q100 for automotive deployment. An interface protection IC is a power-management and surge-suppression device that sits between a host controller and an external connector, guarding both the power rail and the high-speed data pins against fault conditions. Within the system hierarchy it belongs to the broader families of surge suppression ICs, circuit protection devices, and power management ICs. In automotive USB systems, connector pins are exposed to shorts to the 12-V battery rail, shorts to ground, load-dump transients, and electrostatic discharge, all of which can destroy unprotected transceivers. The TPD3S714-Q1 family integrates a current-limited VBUS power switch with short-to-battery and short-to-ground fault response, together with integrated data-line switches that provide best-in-class bandwidth for minimal signal degradation during USB short-to-battery events. The high-bandwidth data switches isolate the USB 2.0 D+/D- lines at fault detection, protecting the downstream transceiver while preserving signal integrity during normal full-speed and high-speed operation. According to the TI datasheet, the device is a single-chip solution for automotive USB hubs, head units, rear-seat entertainment, telematics, and media interface applications. Single-chip integration of the VBUS FET, data switches, and fault-control logic reduces BOM count versus discrete TVS, FET, and controller solutions, and the integrated solution reduces the protection response time relative to external discrete implementations. Typical applications include automotive USB charging ports and hubs, infotainment head units, rear-seat charging modules, and telematics control units where USB connectors face harsh fault environments. Design consideration: confirm the VBUS current-limit setting and fault flag behavior against the host controller power-sequencing requirements, and provide solid ground pours under the WQFN exposed pad for thermal and ESD performance. This page adds distributor pricing, drop-in family alternatives, design notes, and comparison data beyond the manufacturer datasheet.
TPS16630PWPR - 60V 6A eFuse with Adjustable PLIM | TI HTSSOP-20
The Texas Instruments TPS16630PWPR is a 60 V, 6 A integrated-FET electronic fuse (eFuse) with adjustable output power limiting (PLIM), housed in a 20-pin HTSSOP (PWP) PowerPAD package. Per the TI TPS1663x datasheet, it integrates a 31 mΩ pass FET, supports an operating input range of 4.5 V to 60 V, and offers an adjustable current-limit threshold from 0.6 A to 6 A with ±7% accuracy at room temperature. An eFuse (electronic fuse) is a solid-state circuit-protection device that replaces a traditional fusible link or PTC. Compared with a one-shot fuse, an eFuse can auto-retry or latch off, log faults, and offer precise, programmable thresholds. eFuses sit within the broader category of hot-swap controllers and power-path protection ICs, which in turn belong to the power-management IC family. PLIM adds a programmable output-power clamp on top of the current limit, allowing designers to cap inrush energy in capacitive loads and protect upstream sources from sustained over-power events. Key features of the TPS16630PWPR include: integrated 31 mΩ Rds(on) FET; 0.6 A to 6 A adjustable ILIM (±7%); 4.5 V to 60 V operating VIN; fast short-circuit response with circuit-breaker mode; output slew-rate control via dV/dT pin; adjustable UVLO and overvoltage lockout (OVLO); MODE pin for latch-off or auto-retry selection; fault flag (FLG) output; thermal shutdown; and a -40°C to +125°C junction-temperature operating range. The HTSSOP-20 PowerPAD package exposes a thermal pad that drops θJA to roughly 28 °C/W when properly soldered, supporting 6 A continuous current at modest VIN-VOUT deltas. Architecturally, the device uses an N-channel MOSFET controlled by an internal charge pump, an analog control loop for current and power limiting, and a fault-management state machine. The PLIM block multiplies sensed input voltage by load current and compares it against an external resistor-set reference, producing a power ceiling independent of load impedance. This approach allows tighter protection in applications where current alone is not enough to characterize stress on the source. Typical applications include 24-V industrial PLC I/O rails, factory-automation sensors, USB-PD source protection in 12-V/24-V adapters, server-board auxiliary rails, and automotive body-electronics loads operating on 12-V/24-V battery systems. Designers reach for the TPS16630PWPR when discrete hot-swap controllers plus external FETs become too large or too expensive for the BOM. When designing with this part, choose the ILIM resistor using RILIM = 12 kΩ × 6 A / ILIM and verify inrush energy stays within the SOA of the input source. The PowerPAD must be soldered to a copper area of at least 1 in² for the thermal performance quoted in the datasheet, and decoupling capacitors should be placed within 2 mm of IN and OUT pins to keep high-di/dt transients out of the control loop. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, structured for engineers evaluating the TPS16630PWPR against discrete hot-swap, fuse, and TVS solutions.
TPS2291L02BYCJR - 2A 22mΩ Load Switch | TI
The Texas Instruments TPS2291L02BYCJR is a compact 5.5V, 2A load switch with 22 mΩ on-resistance and 90 nA quiescent current, housed in a 4-ball DSBGA (0.62 mm x 0.62 mm) wafer-scale package. A load switch is a power management IC that places a power MOSFET between a supply rail and its load, allowing a controller to gate power on and off electronically. In the system power hierarchy, load switches sit between the voltage regulator (or battery) and downstream loads such as sensors, radios, and processors, providing controlled power sequencing, inrush limiting, and leakage isolation. They are essential in battery-powered designs where every microamp of standby drain matters. Key features of the TPS2291L02 include an input voltage range of 1.05V to 5.5V, a maximum continuous current of 2A, and an extremely low 90 nA quiescent current. A quick output discharge (QOD) function actively pulls the output low when the switch is disabled, preventing floating rails from back-powering the load. The controlled turn-on time limits inrush current during startup, and the enable (EN) pin interfaces directly with low-voltage control signals from MCUs and processors. Internally, the device uses an N-channel MOSFET as the pass element, driven by an internal charge pump, which enables low RON across the full input range while keeping the die tiny enough for a 0.62 mm square DSBGA footprint. This makes it suitable for space-constrained portable designs. Typical applications include smartphone and tablet peripheral rail switching, battery-powered IoT sensor power gating, camera module power control, and power sequencing in multi-rail processor systems where module power-up order must be enforced. When designing with this part, remember that DSBGA packages require careful PCB layout: lands must be non-solder-mask-defined per TI recommendation, and inspection is best done with X-ray. Also budget for the switch's RON-related drop at 2A continuous load. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TPS22954-Q1 - 5.7V 5A 14mΩ Load Switch | TI | Automotive
The Texas Instruments TPS22954-Q1 is a single-channel N-channel high-side load switch rated for 5.7 V input, 5 A continuous current, with an ultra-low 14 mΩ on-resistance, housed in a 10-pin WSON (DQC, 3x2 mm) package. This automotive-grade power-distribution switch integrates controlled turn-on, adjustable rise time, voltage monitoring, and output discharge functions in a compact footprint. A load switch is a power management IC placed in series with a voltage rail to connect or disconnect power to downstream loads under logic control. Within the power management hierarchy, load switches sit between the supply and the load, complementing voltage regulators by adding switching, inrush control, sequencing, and fault protection. They are essential wherever rails must be turned on softly, sequenced in order, or monitored for faults. Key features of the TPS22954-Q1 include the 14 mΩ typical on-resistance that minimizes voltage drop and conduction loss at full 5 A load, a wide 0.7 V to 5.7 V operating range covering 1.0 V, 1.8 V, 3.3 V, and 5 V rails, an adjustable rise time via an external capacitor for controlled inrush, and quick output discharge for defined rail states. The device is characterized for operation over the -40°C to +105°C ambient range required by automotive applications. Technically, the switch uses a low-RON N-channel MOSFET pass element with an integrated charge pump to drive the gate above the rail, delivering very low insertion loss. Controlled turn-on suppresses inrush current peaks that would otherwise cause supply droop, while voltage monitoring and output diagnostics give the system controller visibility into rail health - valuable for functional-safety oriented designs. Both DQC (0.5 mm pitch) and DSQ (0.4 mm pitch) package versions are supported on the TPS22954EVM evaluation module. Typical applications include automotive ADAS and infotainment power rails, electronic control unit (ECU) subsystem sequencing, power switching for cameras, displays, and communication modules, and general high-current rail switching in industrial systems where a Q100-class device is preferred. A key design consideration is thermal management: at 5 A and 14 mΩ, conduction losses are roughly 0.35 W (estimated from I²R), so a solid ground-plane pour under the die attach pad is important. Also account for the adjustable rise-time capacitor sizing against your inrush budget. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design guidance not found in the manufacturer datasheet.
TPS22990NDMLT - 10A, 5.5V, 3.9mOhm Load Switch | TI
The Texas Instruments TPS22990NDMLT is a 5.5 V, 10 A single-channel load switch with 3.9 mOhm on-resistance, housed in a 10-pin WSON (3x2 mm) package. It integrates an N-channel MOSFET high-side switch operating from a 0.6 V to 5.5 V input range, with a controlled and adjustable turn-on and an integrated power-good (PG) indicator. A load switch is a power management IC that sits between a supply rail and its load, using an internal MOSFET to connect or disconnect power under logic control. Load switches belong to the broader family of power distribution switches and hot-swap devices within power management ICs. They protect downstream circuitry during power sequencing, limit inrush current, and isolate faulty or idle loads to save energy in multi-rail systems. Key differentiating features of the TPS22990NDMLT include the very low 3.9 mOhm on-resistance, which minimizes conduction losses at the full 10 A continuous current (approximately 0.39 W of estimated I2R dissipation), the wide 0.6 V to 5.5 V input range that supports low-voltage core rails as well as standard 5 V and 3.3 V rails, adjustable rise time for inrush-current control, and soft-start behavior. An integrated power-good output simplifies rail monitoring and power-sequencing handshakes, and the TPS22990N variant adds optional output discharge functionality to actively pull the output low when the switch is off. Technically, the device uses an N-channel MOSFET as the pass element and requires a bias supply above the input rail to fully enhance the switch, keeping the on-resistance low even at sub-volt input levels. The controlled turn-on circuitry charges the output gradually, with the slew rate settable by an external capacitor, allowing designers to trade startup time against inrush current and voltage droop on the upstream rail. Typical applications include SSD and storage power distribution, server and datacenter point-of-load switching, FPGA and ASIC core-rail power sequencing, battery-powered portable systems, and industrial 5 V rail isolation. When designing with this part, provide a solid ground plane and adequate copper area for the VOUT pins, since 10 A of continuous current demands low-impedance thermal and electrical paths. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TPS23521 - -10V to -80V Hot Swap Controller | Texas Instruments
The Texas Instruments TPS23521 is a high-performance hot swap controller for -10V to -80V telecom power systems, integrating dual current limit and dual gate drive in a 16-pin TSSOP (PWT/PWR) package. It enables safe board insertion and removal from live -48V backplanes, serving network routers, switches, and other high-power telecom equipment. A hot swap controller is a power management IC that safely connects and disconnects a load from a live power bus, limiting inrush current and preventing connector arcing and system glitches. It works with an external pass MOSFET, current sensing, and gate control, and belongs to the broader power management IC hierarchy alongside e-fuses and hot swap controllers. Key features include a 200V absolute maximum rating for survivability during lightning surge tests per IEC61000-4-5, dual current limit with dual gate drive for independent control of two MOSFETs, and a soft start capacitor disconnect function that enables soft start at power-up while improving transient response in normal operation. The device operates over -40C to +85C and is RoHS compliant. The TPS23521 uses a proprietary architecture providing precise current sensing and fast response to overcurrent faults. Its high-voltage capability and robust design make it well suited for harsh telecom environments with -48V battery plants, where input transients from lightning surge and hot swapping are common design challenges. Typical applications include -48V hot swap in telecom rectifiers, network routers, Ethernet switches, and base station power distribution. With appropriate external MOSFETs, the dual gate drive supports high-current designs up to several hundred amps. Design tip: choose the soft start capacitor to limit inrush current to safe MOSFET SOA levels, and provide low-inductance, thermally adequate PCB paths for the external pass devices. Pricing varies by package suffix and quantity; refer to authorized distributors for current stock and pricing as of 2026-08-30.
TPS23882RTQT - 8-Ch Type-3 PoE PSE Controller | TI
The Texas Instruments TPS23882RTQT is an 8-channel, Type-3, 2-pair Power Sourcing Equipment (PSE) controller with SRAM programmability and 200 mOhm current sense resistors, housed in a 56-pin VQFN (8x8 mm) package. It inserts power onto Ethernet cables in accordance with IEEE 802.3bt, and also supports 802.3at (PoE+) and 802.3af (PoE) standards. A PoE PSE controller is a power management IC that sits at the switch or injector side of an Ethernet link. It performs powered-device detection, classification, mutual identification, and controlled power application per the IEEE 802.3 power-over-Ethernet specifications, protecting both the cable plant and the PD from faults such as overcurrent and inrush events. Key features include 8 independent PoE channels for 2-pair power delivery, IEEE 802.3bt Type-3 compliance, on-chip SRAM for firmware and configuration flexibility, and reduced 200 mOhm sense resistors that lower power dissipation versus earlier generation designs. The TPS23882 improves on the TPS2388 with these lower sense resistance values and SRAM programmability, simplifying thermal design in high-density switches. Architecturally, the device integrates detection and classification engines per port, I2C and autonomy-mode operation, port remapping, and protection features including overcurrent, overload, and short-circuit handling. Port remapping and pin-to-pin compatibility with the TPS2388, TPS23880, and TPS23881 devices enable interchangeable 2-layer PCB designs across different system PoE power configurations, easing migration from previous generation PSE designs. Typical applications include enterprise PoE switch line cards, midspan injectors, campus and industrial network infrastructure, and wireless access point powering systems where multiple 802.3bt-capable ports are required in a compact footprint. A key design consideration is sizing the external hot-swap MOSFETs and sense resistors for the per-port current class, and providing adequate copper area under the VQFN exposed pad for thermal dissipation at full 8-port load. This page synthesizes distributor pricing, pin-compatible family alternatives, and practical design notes not found in the manufacturer datasheet.
TPS26400PWPR - 42V 2A eFuse w/ Reverse Polarity | Texas Instruments
The Texas Instruments TPS26400PWPR is a 42-V, 2-A industrial eFuse (electronic fuse) with integrated reverse-input polarity protection, housed in a 16-pin HTSSOP (PWP) package with an exposed thermal pad. It is designed for 4.5 V to 42 V operation and integrates a low-impedance N-channel MOSFET pass element, programmable current limit, and reverse-input blocking in a single IC. An eFuse (electronic fuse) is a solid-state circuit-protection device that replaces a traditional glass-cartridge fuse or PTC with an integrated MOSFET-based switch. It detects overcurrent, overvoltage, short-circuit, and reverse-polarity faults in microseconds, then either latches off or auto-retries depending on configuration. Within the broader system hierarchy, eFuses sit between discrete protection components (TVS diodes, PTC) and supervisor ICs in the power-management block, providing fast, resettable protection for downstream rails loads. Key features of the TPS26400PWPR include an integrated back-to-back FET topology for true reverse-input blocking down to -42 V, an adjustable current-limit threshold set by an external resistor (RILIM), programmable inrush current slew rate via SS pin, and a fault output (FLT) for system telemetry. The device operates over the -40 °C to +125 °C industrial temperature range and offers an IMON current-monitor output for accurate load-current measurement. The TPS26400PWPR uses TI's proprietary hot-swap controller architecture with charge-pump gate drive, enabling a typical Rds(on) of approximately 30 mΩ in the pass FET path. Internal comparators monitor VIN, VOUT, and current-sense voltages with programmable response timing, while the FAULT pin supports latch-off or auto-retry modes. Reverse-polarity protection is achieved without additional series diodes loss, preserving efficiency in 24-V industrial bus applications. Typical applications include 24-V industrial PLC I/O protection, factory-automation sensor and actuator rails, motor-drive auxiliary supplies, building-automation backplane power, and PoE/PoDL powered-device input protection. The wide 4.5 V to 42 V input range also covers 12-V and 36-V automotive and telecom nominal buses. When designing with this device, derate the HTSSOP-EP package carefully at high VIN and full 2-A load - at VIN = 24 V and VOUT = 12 V, the IC dissipates roughly 24 W under fault conditions and requires substantial copper pour to keep junction temperature in spec. This page synthesizes distributor pricing, drop-in alternatives (TPS26600PWPR, TPS2HB50AQPWPRQ1, etc.), and practical design notes not found in the TI datasheet alone.
TPS26636PWPR - 60V, 6A eFuse with Power Limit & Surge Protection
The Texas Instruments TPS26636PWPR is a 4.5-V to 60-V, 31-mΩ, 0.6-A to 6-A integrated eFuse (electronic fuse) with output power limiting and surge protection, housed in a 20-pin HTSSOP (PWP) package with an exposed thermal pad. It combines a 31-mΩ N-channel FET, programmable current limit, true RMS power-limiting, and surge protection in a single hot-swap IC, eliminating the discrete MOSFET + supervisor + TVS combination typically required for 24-V/48-V industrial input protection. An eFuse (electronic fuse) is a solid-state circuit-protection IC that replaces traditional PTC fuses, polyfuses, or mechanical circuit breakers with an integrated MOSFET and analog control loop. It monitors input voltage, load current, and junction temperature, and reacts within microseconds to overcurrent, short-circuit, overvoltage, and thermal events. Within the power-management IC hierarchy, eFuses sit between ideal-diode/ORing controllers and hot-swap controllers, providing fast, resettable protection for downstream DC rails. The TPS26636 is specifically classified as a power-limiting eFuse, meaning it can clamp sustained output power rather than just current. Key specifications include 4.5 V to 60 V operating input range, 0.6 A to 6 A adjustable current limit (set by ILIM pin resistor), 31-mΩ typical on-resistance, integrated surge protection, programmable inrush slew rate via dVdT pin, load current analog output (IMON), fault output (FLTb), and reverse-current blocking when reverse-current protection is required. The -40 °C to +125 °C junction temperature range and 20-HTSSOP PowerPAD package with low θJA support demanding industrial and telecom environments. Architecturally, the TPS26636 uses a charge-pump-driven N-channel MOSFET, a precision current-sense amplifier, an internal bandgap reference, and a configurable power-limit engine. Power limiting is computed as an analog multiplier of VIN × IOUT, allowing the device to fold back current at high line voltage, protecting upstream wiring from over-dissipation. The integrated TVS-style surge clamp and reverse-blocking comparator remove external TVS/MOSFET pairs from the BOM, which is a significant board-area and reliability win. Typical applications include 24-V industrial PLC I/O, factory-automation sensor backplanes, 48-V telecom rectifier secondary protection, motor-drive auxiliary rails, e-mobility accessory power, and any 24-V/48-V distributed-bus system where sustained fault energy must be bounded. The TPS26636 is also widely used as a USB-PD sink protection element at the 20-V/5-A tier. When laying out the PCB, place input/output ceramic capacitors within 5 mm of their respective pins and stitch the thermal pad to a copper pour of at least 1 sq. inch on each layer, plus thermal vias in a 1.2-mm grid, to keep the 31-mΩ FET below thermal shutdown at maximum dissipation. The IMON output can drive an ADC directly for telemetry - this is rare in discrete-fuse replacements. This page synthesizes distributor pricing, drop-in alternatives, and practical layout notes that go beyond the manufacturer datasheet to help procurement and design engineers evaluate the TPS26636PWPR for industrial protection designs.
TPS3106K33DBVR - 3.3V Ultra-Low Iq Voltage Supervisor | TI
The Texas Instruments TPS3106K33DBVR is an ultra-low supply current, supply voltage supervisory circuit designed for circuit initialization and timing supervision in DSP and processor-based systems. Packaged in a 6-pin SOT-23 (DBV), it monitors 3.3V power rails with an active-low, open-drain RESET output, a fixed 2.941V threshold, and a 130 ms reset delay time, with a typical quiescent current of approximately 1.1 µA across the 0.9 V to 3.6 V operating range. A voltage supervisor (also called a supply voltage monitor or reset IC) is a type of power management IC that holds a host processor in reset whenever the supply voltage is below a defined minimum or below a threshold for longer than the configured delay. Voltage supervisors sit between a power rail and a digital controller, generating an asserted-low reset signal during power-up, power-down, and brownout events to prevent code execution from corrupted memory or undefined logic states; in the broader hierarchy they are members of the supervisor / reset IC family inside the power management category. Key features include a 1.1 µA typical quiescent current, an open-drain RESET output suitable for wired-OR multi-rail monitoring, an internal 130 ms reset delay timer to provide brownout immunity, and a manual reset (MR) input that can force RESET low regardless of the sensed voltage. The TPS3106 family also includes the TPS3103 (active-low open-drain) and TPS3110 (active-low push-pull) variants for architectural flexibility. The wide hysteresis and tight threshold accuracy reduce nuisance resets in battery-powered designs. The TPS3106 uses a precision bandgap reference combined with a comparator and an integrated timing network to deliver reliable voltage monitoring. The device operates from supplies as low as 0.9 V, making it suitable for single-cell battery and energy-harvesting rails. Its open-drain RESET topology allows multiple supervisors to be combined into a single interrupt, useful in multi-rail systems where any one rail's failure should hold the host in reset. Typical applications include microcontroller and DSP reset supervision in portable electronics, battery-powered IoT sensors, industrial PLC and factory automation controllers, FPGA configuration rail monitoring, automotive infotainment sub-system monitoring (non-safety-rated), and energy-harvesting energy management modules. The part is well suited for any compact 3.3 V (or lower) digital system requiring robust power-on-reset and brownout supervision. When designing with this device, ensure the pull-up resistor on the open-drain RESET pin is sized appropriately for the load capacitance to meet the desired reset rise-time. The MR pin can be tied to VDD or left floating if unused, but should not be left floating in noisy environments where it could couple transient noise into the reset comparator. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TPS3610T50PW - Battery-Backup Supervisor, 5V, TSSOP-14 | Texas Instruments
The Texas Instruments TPS3610T50PW is a battery-backup supervisory circuit for RAM retention that integrates processor activity monitoring, backup-battery switchover, and write-protection in a 14-pin TSSOP (PW) package. It operates over a typical supply voltage of 5V with a maximum quiescent supply current of 40 µA and a maximum battery supply current of 100 nA, making it suitable for low-power always-on designs. A battery-backup supervisor is a specialized power-management IC that watches the main supply rail and, when VCC collapses below a programmable threshold, switches the load over to a backup battery so that CMOS SRAM can retain its contents during power loss. Within the broader power-management hierarchy, supervisors sit alongside voltage regulators, reset ICs, and watchdog timers as system-reliability building blocks; they are essentially a combination of a precision voltage monitor and a power-path switch, often augmented with chip-enable gating for memory write protection. Key features include a precision supply-voltage monitor with power-fail comparator, low-line indication for early warning of impending brown-out, watchdog timer for processor activity, battery-status (BATT OK) indicator, manual switchover input, and chip-enable (CE) gating to block spurious writes to external SRAM during the VCC-to-battery transition. The push-pull/totem-pole outputs drive CMOS logic directly without external pull-ups, simplifying board routing. Internally, the TPS3610 uses a precision bandgap reference and on-chip comparators to track VCC against the user-programmed threshold; once VCC falls below threshold the device asserts RESET, gates CE, and closes the internal MOSFET that routes VBAT to the SRAM VDD rail. Typical quiescent current of 40 µA from VCC and 100 nA from VBAT means a CR2032-style backup cell can sustain SRAM for years. Typical applications include battery-backed SRAM modules in industrial controllers, point-of-sale terminals, data loggers, medical instruments with non-volatile parameter storage, automotive telematics units, and any embedded system that must preserve settings through a power cycle. A 5V main rail with a 3V or 3.6V lithium coin cell is the standard configuration. When designing with the TPS3610T50PW, place the decoupling capacitors on VCC and VBAT as close to the IC as possible and keep the trace from VBAT to the SRAM VDD short to minimize inrush during switchover. Choose a threshold capacitor on the TOL pin to set the power-fail warning window consistent with your DC-DC converter's hold-up time. This page synthesizes distributor pricing, verified drop-in alternatives, and practical supervisor-design guidance not consolidated in the manufacturer datasheet.
TPS3700DDCR - 18V Window Voltage Detector | Texas Instruments
The Texas Instruments TPS3700DDCR is a high-voltage (18-V) window voltage detector for overvoltage and undervoltage monitoring in a 6-pin SOT-23-THIN (DDC) package with a -40C to +125C operating range. It integrates two high-accuracy comparators sharing an internal 400 mV reference, two open-drain outputs rated to 18 V, and operates across a wide 1.8 V to 18 V supply range. Threshold accuracy is 1.0% over temperature (0.25% typical), and quiescent current is 5.5 uA typical. A window comparator (also called a window voltage detector or dual-voltage supervisor) is a power-management IC that asserts a fault output whenever a monitored rail falls outside a user-defined upper-and-lower voltage window. It belongs to the broader hierarchy supervisor IC -> voltage monitor -> power management IC -> semiconductor. Window comparators are essential where both undervoltage (UV) and overvoltage (OV) events can damage downstream loads, and they replace two single-channel supervisors with one part and one reference, simplifying board layout and improving threshold tracking. The TPS3700 can be used as a true window detector or as two independent voltage monitors. The OVH and OVL pins drive two separate open-drain outputs that can be pulled up to any rail up to 18 V, enabling direct interface to microcontrollers, FPGAs, or downstream logic. The internal 400 mV reference enables very low threshold settings using external resistor dividers, and the wide 1.8 V to 18 V supply lets a single part supervise 3.3 V, 5 V, 12 V, and 15 V rails from the same device. The high threshold accuracy of 1.0% over temperature ensures reliable fault detection in production systems without false triggering. Typical applications include industrial 24V/12V rail monitoring (with the detector powered from a separate low-voltage rail), automotive battery and ECU voltage supervision, FPGA/MCU core and I/O rail sequencing, and USB Type-C VBUS monitoring. The 6-pin SOT-23-THIN (DDC) package makes the part suitable for compact PCB designs where board area is at a premium. When designing with the TPS3700DDCR, select external resistor dividers so the trip points fall within the 400 mV to (Vsupply - 400 mV) common-mode range of the inputs. Pull-up resistors on the open-drain outputs must be sized for the desired response time versus quiescent leakage, and supply decoupling with a 0.1 uF ceramic capacitor close to VDD is recommended. This page synthesizes distributor pricing, drop-in alternatives in the same DDC footprint, and practical design guidance not found in the manufacturer datasheet.
TPS3711 - 36V Voltage Detector, 400mV Ref | Texas Instruments
The Texas Instruments TPS3711 is a precision voltage detector that combines a comparator and an internal 400 mV reference for undervoltage detection. It operates over a wide supply voltage range of 1.8 V to 36 V, making it suitable for a variety of industrial and automotive applications. The device features a high-accuracy threshold voltage of 400 mV with 0.75% accuracy over temperature and built-in hysteresis for noise rejection, ensuring stable output operation without false triggering. The TPS3711 is available in a SOT-23-6 (SOT-6, SOT-23-THIN) package and is specified from -40C to +125C junction temperature. A voltage detector, also called a voltage supervisor or reset IC, monitors a supply voltage and asserts a signal when the monitored rail falls below a preset threshold. It belongs to the supervisory circuit family within power management ICs, a sub-category of semiconductor voltage regulators and system-protection devices. Voltage detectors are essential in processor-based systems, where they hold the MCU in reset until the rail is stable, preventing erratic operation during power-up and brown-out events. Key features include an open-drain output rated to 25 V for flexible level translation to any logic rail, a built-in hysteresis window that provides noise immunity, and low quiescent current that suits battery-powered designs. The wide supply range of 1.8 V to 36 V allows the TPS3711 to monitor 3.3 V, 5 V, 12 V, 24 V, and 36 V industrial rails directly. Technically, the device uses a precision bandgap reference and comparator. The monitored voltage is set with an external resistor divider on the SENSE pin, giving a fully adjustable trip point. OUT is driven low when SENSE drops below the negative threshold and goes high when the voltage recovers. The open-drain output requires an external pull-up resistor. Typical applications include undervoltage detection in industrial control systems, 12 V/24 V/36 V rail monitoring in automotive and telecom equipment, and portable device battery supervision. When designing with the TPS3711, size the resistor divider for the desired threshold, account for hysteresis to avoid chatter, and decouple the SENSE pin with a small capacitor to reject fast transients.