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TMUX136RSER - 6GHz 2-Ch SPDT Analog Switch | TI UQFN-10
The Texas Instruments TMUX136RSER is a high-performance 6-GHz, 2-channel, 2:1 (SPDT) analog switch with powered-off protection, packaged in a 10-pin UQFN (RSE, 2.0 x 1.5 mm) and rated for a typical on-resistance of 9.5 ohm. It supports a wide VCC range of 2.3 V to 4.8 V and offers 1.4 pF typical on-state capacitance, making it ideal for high-frequency signal multiplexing. What is an analog switch/multiplexer? An analog switch (also called a multiplexer or MUX) is a solid-state semiconductor device that routes analog or digital signals between multiple input/output paths under digital control, using MOSFET transistors as the switching elements. Analog switches sit within the broader hierarchy of interface ICs -> signal routing -> semiconductor ICs. The 2:1 (SPDT) configuration means each of the two independent channels can connect a common pin to one of two possible inputs, a topology commonly used for signal multiplexing, source selection, and USB/MIPI/LVDS switching. Key features include a -3 dB bandwidth of 6 GHz, 1.4 pF on-state capacitance (Con), 9.5 ohm typical on-resistance (Ron), and 1.8 V-compatible control inputs that interface directly with low-voltage processor GPIOs. Power-off protection forces all I/O pins into high-impedance mode when VCC is removed, protecting downstream components and preventing back-powering through the signal path. The flow-through pinout places inputs and outputs on opposite sides of the package, simplifying PCB routing. The architecture uses N-channel MOSFET pass transistors driven by a charge-pump-assisted gate driver, which achieves low Ron flatness across the input signal range and supports bidirectional signal paths. The 6 GHz bandwidth enables pass-through of high-speed differential protocols such as USB 2.0, MIPI DSI/CSI, and LVDS without significant insertion loss. Typical applications include tablet and notebook signal multiplexing, smartphone MIPI/DSI switching, USB 2.0 high-speed signal routing, and audio signal path selection. The device also finds use in test equipment and instrumentation where high-bandwidth signal multiplexing is required. When designing with this device, observe the absolute maximum ratings for analog signal voltage. Use controlled-impedance PCB traces (typically 50 ohm single-ended or 90 ohm differential) for high-frequency signals to preserve signal quality at the rated 6 GHz bandwidth. This page synthesizes distributor pricing, drop-in alternatives from TI and competitors, and practical design notes not found in the manufacturer datasheet alone.
TMUX7208 - 44V Latch-Up Immune 8:1 MUX | Texas Instruments
The Texas Instruments TMUX7208 is a precision 8:1 single-channel multiplexer designed for high-voltage, high-performance signal routing. It operates from a single supply of 4.5V to 44V, dual supplies of ±4.5V to ±22V, or asymmetric supplies such as VDD=12V and VSS=-5V. The device features a low on-resistance of 4Ω (typical) and low charge injection of 3pC, making it suitable for precision analog applications. The TMUX7208 is available in a 16-pin TSSOP (PW) package and supports a wide operating temperature range of -40°C to +125°C. A multiplexer (MUX) is a device that selects one of several analog or digital input signals and forwards it to a single output line. The TMUX7208 is an analog multiplexer, specifically an 8:1 configuration, meaning it routes one of eight input channels to a common output based on the state of three address pins and an enable pin. This functionality is essential in data acquisition systems, test equipment, and industrial automation where multiple sensors or signals need to be sampled sequentially by a single ADC or measurement circuit. Key features of the TMUX7208 include latch-up immunity, which prevents damage from overvoltage or ESD events, and 1.8V logic-compatible inputs, allowing direct interface with low-voltage microcontrollers without level shifters. The device supports high current up to 300mA (max), making it robust for various loads. The low on-resistance and charge injection ensure minimal signal distortion and glitches during switching. The TMUX7208 uses a precision architecture with a break-before-make switching mechanism, preventing momentary shorting between channels. The device also features an enable pin that, when low, disconnects all channels, providing a high-impedance state. This is useful for power-down or isolation scenarios. The wide supply range and latch-up immunity make it ideal for industrial and automotive environments where voltage transients are common. Typical applications include data acquisition systems, test and measurement equipment, industrial process control, and battery monitoring systems. The TMUX7208 can be used to multiplex multiple sensor inputs into a single ADC, reducing component count and cost. Its high-voltage capability allows direct connection to 24V industrial buses without additional level shifting. When designing with the TMUX7208, ensure that the supply voltages are within the specified range and that the input signals do not exceed the supply rails. Proper decoupling capacitors on the supply pins are recommended to minimize noise. The address and enable pins should be driven with logic levels compatible with 1.8V to 5V, as the device is 1.8V logic compatible.
TMUX8108 - 100V Flat RON 8:1 MUX | Texas Instruments
The TMUX8108 is a modern high-voltage analog multiplexer from Texas Instruments, offering a single-ended 8:1 configuration with flat on-resistance (RON) and latch-up immunity. It operates with dual supplies, a single supply, or asymmetric supplies up to a maximum supply voltage of 100 V. The device supports bidirectional analog and digital signals on the source (Sx) and drain (Dx) pins, and all logic inputs support 1.8 V, 3.3 V, and 5 V logic levels, with the ability to connect as high as 48 V for system flexibility. An analog multiplexer is a device that routes one of several input signals to a common output based on digital control signals. In a single-ended 8:1 configuration, the TMUX8108 selects one of eight input channels and connects it to a single output. This functionality is essential in data acquisition systems, test equipment, and industrial automation where multiple sensors or signals need to be sampled sequentially by a single ADC or measurement circuit. The multiplexer acts as a signal router, enabling efficient use of expensive analog-to-digital converters and reducing component count. Key features of the TMUX8108 include a flat RON of 50 ohm, which minimizes distortion and ensures consistent performance across the input voltage range. The device provides latch-up immunity, preventing damage from overvoltage or overcurrent conditions. It supports a wide supply range up to 100 V, making it suitable for high-voltage industrial and automotive applications. The logic inputs are compatible with 1.8 V, 3.3 V, and 5 V systems, allowing direct interface with modern microcontrollers without level shifters. Technically, the TMUX8108 is built on a high-voltage CMOS process that enables low leakage currents and fast switching times. The flat RON characteristic is achieved through careful design of the switch architecture, ensuring that the on-resistance remains nearly constant across the entire analog input range. This reduces signal distortion and improves accuracy in precision measurement systems. The device also features break-before-make switching to prevent momentary shorting of channels during transitions. Typical applications include data acquisition systems, automated test equipment, industrial process control, and battery monitoring systems. In data acquisition, the TMUX8108 allows a single ADC to sample multiple sensor channels, reducing cost and board space. In battery monitoring, it can route individual cell voltages to a measurement circuit, enabling accurate state-of-charge estimation. The high-voltage capability makes it ideal for automotive 48 V systems and industrial 24 V or 48 V buses. When designing with the TMUX8108, ensure that the supply voltages are within the absolute maximum ratings and that the logic control signals are properly referenced to the logic supply. The device requires careful PCB layout to minimize parasitic capacitance and maintain signal integrity, especially in high-frequency applications. Additionally, consider the on-resistance and leakage current when calculating system accuracy, as these parameters affect the overall measurement error.
TMUXHS4412IRUAR - 20Gbps 4-Ch 2:1/1:2 Mux/Demux | Texas Instruments
The Texas Instruments TMUXHS4412IRUAR is a 4-channel, 20 Gbps bidirectional differential 2:1/1:2 multiplexer/demultiplexer in a 42-pin WQFN (RUA, 3.5 mm x 9 mm) package with exposed thermal pad, providing an 8 ohm on-state resistance and a typical -3 dB bandwidth of 13 GHz across each high-speed lane. The device supports USB 3.2 Gen 2x2, USB 3.2 Gen 1, USB 2.0, DisplayPort 1.4, SATA, PCIe Gen 3, SAS, and MIPI DSI/CSI by routing two differential sources to a single differential sink or vice versa with sub-130 ns propagation delay and 50 ps intra-pair skew. A high-speed multiplexer/demultiplexer (mux/demux) is a passive analog switch that selects one of multiple differential input pairs to a single output pair, enabling a host controller to share one PHY across two connectors, two PHYs across one connector, or to switch between redundant high-speed data paths. In the signal chain hierarchy the mux/demux sits between the protocol physical layer (PHY) and the connector, providing galvanic isolation between channels while preserving signal integrity at multi-gigabit NRZ and PAM3/PAM4 signaling rates. The TMUXHS4412 implements bidirectional switching so the same device serves either mux (2:1) or demux (1:2) topology without firmware configuration. Key differentiating features include 20 Gbps per-channel data rate (enabling USB 3.2 Gen 2x2 with two channels aggregated), 50 ps intra-pair skew, 8 ohm RON, 0.45 pF typical on-capacitance, sub-130 ns propagation delay, and dual supply support with 1.71 V to 1.98 V core and 3.0 V to 3.6 V I/O. The 42-pin WQFN (RUA) package provides a 31 C/W thermal pad-to-ambient resistance and supports -40 C to +105 C industrial operation. The architecture uses a pair of differential CMOS pass gates per channel with an integrated charge pump to maintain low RON across the full signal swing, plus on-chip termination resistors selectable through SEL pins. The bidirectional design means the same part handles both upstream and downstream switching, simplifying inventory and reducing PCB layout differences between mux and demux placements. Typical applications include USB Type-C port multiplexers, DisplayPort dual-mode source switching, PCIe lane failover, SATA port multipliers, and front-panel USB-C routing on motherboards, docking stations, and embedded computing platforms. The wide 3.0 V to 3.6 V supply range makes it compatible with both 3.3 V I/O rail and modern sub-1.8 V core supplies. When designing with the TMUXHS4412, route the high-speed differential pairs as 90 ohm differential impedance with length matching to within 5 mils, place decoupling capacitors within 2 mm of each supply pin, and solder the exposed thermal pad to a thermal land on a high-K board to maintain the full -40 C to +105 C temperature range without additional vias. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not consolidated in the manufacturer datasheet, including 8 ohm RON and 13 GHz bandwidth values verified from the TI TMUXHS4412 datasheet.
TMUXHS4446RETT - USB-C 10Gbps Alt Mode Crossbar Mux | Texas Instruments
The Texas Instruments TMUXHS4446RETT is a high-speed bidirectional passive crosspoint switch (crossbar, Xbar) that switches USB 3.2 Gen2 SuperSpeed and DisplayPort 1.4/2.1 (up to 10 Gbps UHBR10) signals over a USB Type-C interface, with 7-ohm typical on-resistance, a 6x4 mux configuration, and a 40-pin WQFN (6 mm x 3 mm) package with exposed pad. A crosspoint switch or crossbar mux is a switching matrix in which any input lane can be routed to any output lane, giving system designers complete flexibility in high-speed signal routing. In the USB Type-C ecosystem, crossbar switches sit between the SuperSpeed/sideband pins of the USB-C connector and a device's USB 3.2 or DisplayPort controller, resolving the orientation and alternate-mode ambiguity that the reversible Type-C connector introduces. As such, it belongs to the analog switch and multiplexer family within signal-switching ICs, sitting between the USB-C connector and the SoC in the system hierarchy. Key features include support for USB 3.2 Gen2 (10 Gbps) SuperSpeed lanes and DisplayPort 1.4/2.1 UHBR10 signaling, integrated low-speed SBU switching for DisplayPort auxiliary (AUX) channels, and a passive, bidirectional switch architecture that adds minimal signal degradation. The 7-ohm typical on-resistance minimizes insertion loss impact on high-speed differential pairs, helping preserve eye diagrams at 10 Gbps rates. Architecturally, the TMUXHS4446 is a passive FET-switch crossbar rather than an active redriver or retimer. This means it consumes minimal power, introduces no added latency, and does not regenerate the signal, so total channel budget must account for its on-resistance and capacitive loading. Passive switching makes it ideal when the host and device have adequate link budget and no equalization is required. Typical applications include USB Type-C docks and dongles that switch between USB 3.2 and DisplayPort alternate mode, notebooks and tablets routing DP 1.4/2.1 lanes to a USB-C port, monitors with USB-C inputs, and smartphone or mobile-compute platforms requiring USB-C orientation and alternate-mode switching. A key design consideration is that because the part is passive, total insertion loss across the connector, PCB traces, and switch must fit the USB 3.2 Gen2 or DP UHBR10 channel budget; keep routing short and impedance-controlled. Follow TI's datasheet layout guidance for the exposed-pad WQFN. This page synthesizes distributor pricing data, drop-in alternative analysis, and practical design notes that go beyond the manufacturer datasheet, giving engineers a single citable reference for the TMUXHS4446RETT.
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.
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.
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.
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.
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.
TPS25821DSST - 1.5A USB Type-C Source Controller | Texas Instruments
Texas Instruments TPS25821DSST is a USB Type-C source controller and 1.5A power switch with a 12-WSON (3x2) DSS package. It operates from -40°C to +125°C and is designed for USB Type-C source applications that require connection-oriented charging behavior. The device combines Type-C source-controller functionality with integrated 1.5A power-switch capability in one compact package. A USB Type-C source controller is an interface IC within the USB Type-C and power-delivery ecosystem. It identifies a Type-C attach event, applies the appropriate source behavior, and helps manage power to a connected USB device. Within the broader hierarchy, the TPS25821 is a USB interface controller, power-management IC, and semiconductor designed to coordinate connector detection with controlled power delivery. The headline specifications are a 1.5A rated power switch, a 12-WSON (3x2) package, and an operating temperature range of -40°C to +125°C. The manufacturer identifies the device as a USB Type-C source controller and power switch. Its Rev. C family datasheet also documents the TPS25820 companion family, providing a common technical reference for designers evaluating the source-controller family. The integrated source-controller and switch architecture reduces the number of separate power-path components required for a USB Type-C source design. According to the TPS25821 product page, the PMP40260 reference design uses this device family to provide 5V at 1.5A to a USB Type-C device while also supporting a legacy device that uses DCP charging behavior. This makes the device applicable where a compact Type-C source port must support both modern Type-C and legacy charging paths. Typical uses include USB Type-C docking stations, laptop and tablet charging ports, power banks, industrial USB power-delivery equipment, monitor USB power ports, and multiport charging accessories. The -40°C to +125°C temperature range supports applications extending beyond room-temperature consumer accessories. The package is especially useful where connector density and board area limit the available component footprint. Designers should review the manufacturer datasheet and the PMP40260 reference design before finalizing input protection, output capacitance, current limiting, thermal layout, and USB Type-C advertising. Because the retrieved data does not specify a complete pin map, input and output voltage limits, switch resistance, logic thresholds, or capacitor requirements, those values must be confirmed directly from the manufacturer documentation rather than inferred from the product category. This product page consolidates the verified manufacturer description, distributor availability, package information, temperature range, reference-design context, and engineering selection guidance. It also clearly separates known facts from unavailable detailed specifications and avoids presenting generic USB Type-C characteristics as verified TPS25821DSST specifications.
TPS65193RGER - Dual High-Voltage TFT-LCD Scan Driver | TI
The Texas Instruments TPS65193RGER is a dual high-voltage scan driver for amorphous-silicon-gate TFT LCD panels, providing high-voltage gate-line outputs from -28 V to 35 V in a 24-VQFN 4 mm x 4 mm package. Each scan-driver section accepts a logic-level CPV input and produces complementary CKV and CKVB outputs, while a logic-level STV input generates the high-voltage STVP output. A high-voltage scan driver is a specialized interface IC that transfers low-voltage timing commands from the host controller to the elevated voltages required by TFT gate lines. Its position in the display hierarchy is controller interface, then row-driver interface, then gate-line scan driver. This device does not process image data; instead, it supplies the high-voltage, charge-sharing waveforms that select and bias TFT rows. Key features include a 35 V high output-voltage level, an output swing down to -28 V, scan-driver output charge sharing, and four logic-level inputs. The 24-VQFN package measures 4 mm on each side, supporting compact display-module designs where connector count and board area are constrained. The RGER orderable designation identifies the 4 mm x 4 mm VQFN package configuration. Each high-voltage scan driver receives CPVx and generates two outputs, CKVx and CKVBx. A separate STV logic input produces the STVP output. Charge sharing reduces peak drive demand by transferring charge between the complementary outputs rather than driving each output as an isolated hard switch, helping lower switching loss in the gate-line drive network. Typical applications are amorphous-silicon TFT LCD modules, including small-panel monitors, portable instruments, industrial HMIs, test equipment, and control-system displays. The device is most appropriate where the panel requires negative off-level and positive high-level gate drive but does not require a separate source-driver solution from the same device. Designers must account for the -28 V to 35 V output range, provide suitable bypassing on the high-voltage supply rails, and validate output timing against the target TFT panel. Panel bias requirements, leakage into neighboring rows, and clock-edge placement determine whether the charge-sharing outputs provide adequate settling time. This page consolidates the verified manufacturer and distributor information, separates documented specifications from unavailable data, and provides application guidance and comparison considerations that are not presented as a substitute for the complete Texas Instruments datasheet.
TPS65195YFFR 8-Channel Display Level Shifter | TI
The Texas Instruments TPS65195YFFR is an 8-channel display power and level-shifting integrated circuit packaged in a 30-pin DSBGA. Distributor records classify the device as a video processing IC and an 8-channel level shifter, placing it within the display-interface and video-signal-conversion segment of integrated-circuit applications. Its defining verified characteristics are the eight-channel architecture, display-oriented level-shifting function, and compact 30-DSBGA package. Detailed electrical ratings, supported logic standards, voltage limits, timing values, and thermal limits were not included in the supplied source material and therefore require confirmation from the manufacturer datasheet before schematic or layout release. A display level shifter is an interface IC that translates signals between voltage domains that use different electrical thresholds. This allows a host processor, graphics engine, or display controller to communicate more reliably with display-panel circuitry when input and output levels are not directly compatible. In the broader semiconductor hierarchy, the TPS65195YFFR belongs to interface ICs and, more specifically, to video interface ICs. Its eight channels allow multiple display-related signals to be handled within one package, reducing the component count compared with discrete translators. The verified distributor listing identifies the part as an 8-channel level shifter in a 30-pin DSBGA. This combination can be valuable in compact display modules where board area is constrained and several voltage-domain crossings are required. The BGA form factor also supports dense routing, although it demands assembly processes capable of handling fine-pitch balls. Package dimensions, ball pitch, exposed-pad details, soldering profiles, and reflow requirements must be taken from the official package drawing rather than inferred from the distributor description. Typical design use is a display controller interface, an LCD panel bias or signal interface, and a compact embedded display module. These uses follow from the verified display power and level-shifting classification; the supplied data does not enumerate supported panel interfaces or timing standards. Engineers should therefore treat the TPS65195YFFR as a display-interface candidate, not as a complete or independently characterized video processor, until channel direction, signal type, voltage ranges, and timing constraints are verified. A key implementation consideration is validating every connected display signal against the manufacturer's absolute-maximum and recommended operating limits. Because no pinout was supplied in the verified results, no pin assignments are asserted here. The official datasheet and land-pattern information must be used to confirm signal direction, supply pins, ground pins, and unused-ball handling before PCB routing begins. This page consolidates the verified distributor identity, package, and sourcing information with a structured engineering workflow for datasheet validation, alternative qualification, and display-interface design. It distinguishes confirmed facts from unavailable parameters rather than filling gaps with guessed electrical values.
TPS65197RUYR - 8-Channel LCD Level Shifter | Texas Instruments
The Texas Instruments TPS65197RUYR is an 8-channel level-shifter IC for LCD display applications, packaged in a 28-pin WQFN (RUY) package measuring 4 mm by 4 mm. It supports 2-channel and 3-channel charge-sharing methods, normal level-shifting operation, and panel discharge to VGH during shutdown. The device is designed to translate timing-controller logic-level signals into the higher gate-level signals required by gate-in-panel (GIP) LCD panels. TPS65197RUYR belongs to the interface IC and display-driver ecosystem. A level shifter is an interface IC that translates voltage domains while preserving signal timing and logic function. In an LCD system, the timing controller operates at lower logic voltages, while GIP row and column driver circuits may require elevated panel voltages. The TPS65197 provides eight channels for this signal conversion and supports panel-specific charge-sharing sequences that help control panel charging and discharge behavior. The principal feature set includes eight level-shifting channels, support for no-charge-sharing, 2-channel charge-sharing, and 3-channel charge-sharing operation, and a dedicated panel-discharge function. The manufacturer product page identifies the device as an 8-channel level-shifter supporting 2-channel and 3-channel charge-sharing and panel discharge in the WQFN (RUY) package with 28 pins. Because GIP panels can accumulate charge and generate transient loads during startup, the charge-sharing architecture is important. The supported operating modes let a system select a charging strategy according to panel timing requirements rather than using a simple fixed level translation approach. The shutdown discharge path provides a defined mechanism for returning panel nodes toward VGH during power-down. Typical uses include notebook computer LCD panels, desktop monitors, television panels, and other GIP-based display systems. The device is most appropriate when the source logic levels, panel gate-drive levels, supported charge-sharing sequence, and shutdown behavior must all be evaluated together. A replacement should not be selected solely by channel count; the timing of each output, panel discharge behavior, voltage ratings, and board footprint must be confirmed against the original design. This page combines the verified manufacturer description, distributor package information, drop-in alternatives, and engineering-oriented design guidance. The 28-pin WQFN footprint, exposed thermal pad, high-speed panel signals, and power-sequencing requirements should be reviewed against the complete manufacturer datasheet before layout or replacement qualification.
TPS65198RUYR - 13-Channel LCD Level Shifter | Texas Instruments
The Texas Instruments TPS65198RUYR is a 13-channel level shifter with an integrated operational amplifier for LCD televisions and monitors, supplied in a 28-pin WQFN (RUY) package measuring 4 x 4 mm. It supports an operating temperature range of -40 C to +85 C and is designed for display-interface applications where multiple voltage domains and signal buffering are required. A level shifter is an interface IC that translates logic signals between voltage domains whose high and low thresholds differ. In an LCD television or monitor, source electronics, timing controllers, panel interfaces, and backlight systems may operate from different supply rails. A multi-channel level shifter allows those signals to cross between incompatible voltage domains, while the integrated operational amplifier provides buffering for a signal that requires drive or amplification. The TPS65198RUYR's 13-channel architecture consolidates multiple translated logic connections in one package. This can reduce the number of discrete level-shifter components and simplify printed-circuit-board layout compared with a collection of individual translators. Its 4 x 4 mm WQFN format also supports compact display-control designs where connector density and panel-interface routing leave limited board area. The verified operating temperature range is -40 C to +85 C, covering industrial temperature conditions commonly encountered in display electronics. The available LCSC listing identifies an 8 V to 20 V supply-related value, but the provided source excerpt does not clearly identify that parameter or its test conditions; consequently, voltage limits, channel direction, translation thresholds, and the integrated amplifier's electrical ratings require confirmation in the manufacturer datasheet before design release. Typical uses include LCD monitor panel-interface circuits, television timing and control boards, display power-sequence logic, and other multi-rail display systems where a compact level-translation stage is needed. Because this device combines translation and amplification, it can simplify signal-interface design when the source impedance and loading requirements of the translated channels differ. Engineers should confirm every channel's direction, voltage domain, enable behavior, and the exposed-pad connection directly against the TI datasheet and the PCB footprint. The 28-pin WQFN package is also thermally and assembly sensitive; proper land-pattern compliance, paste control, and exposed-pad soldering are required for reliable production yield. This page consolidates the verified manufacturer identification, distributor package data, temperature rating, and supply-range excerpt for TPS65198RUYR, while clearly separating missing electrical data from confirmed values. It also documents the absence of a manufacturer-verified drop-in substitute rather than presenting an unverified package conversion as a drop-in replacement.
TPS65198RUYT - 13-Channel Level Shifter | Texas Instruments
The Texas Instruments TPS65198RUYT is a 13-channel level shifter with an integrated operational amplifier for GIP-based LCD television and monitor applications, packaged in a 28-pin WQFN (RUY) 4 x 4 mm package. It accepts five timing-controller input signals, uses an internal state machine to generate twelve output signals, and combines level shifting with op-amp signal conditioning. Its specified operating-temperature range is -40°C to +85°C. A level shifter is an interface device that translates logic-voltage levels so circuits using different voltage domains can communicate reliably. In this application, the TPS65198 belongs to the display-driver interface hierarchy: logic level translation, display timing-interface conversion, voltage-domain interfacing, and display-driver ICs. Its integrated op amp provides an additional analog signal-conditioning function alongside the digital level-shift outputs. The principal feature is the combination of a 13-channel level-shifting architecture, five external inputs, twelve internally generated outputs, and op-amp integration. This consolidation can simplify the circuitry associated with GIP panel timing control. The built-in state machine sequences the generated outputs according to the panel-interface requirements, while the integrated amplifier can support signal conditioning where the timing interface requires amplification or level adjustment. TPS65198RUYT is intended for LCD TVs and monitors using GIP technology, where multiple panel signals must be shifted between source-driver, gate-driver, and timing-controller voltage domains. The 4 x 4 mm WQFN package supports compact display-controller boards, but its exposed thermal-pad construction requires careful PCB layout for electrical return paths and heat spreading. Designers should also account for the high-speed edge behavior of the interface when routing signals and selecting input and output impedance. Typical uses include large-panel LCD television timing control, LCD monitor panel interfaces, and other GIP display systems that require coordinated multi-channel level translation. Because the verified source set identifies a 28-pin WQFN package and a -40°C to +85°C range, the device is appropriate for industrial and consumer display environments requiring operation across that temperature span. The principal design consideration is to follow the manufacturer datasheet exactly for exposed-pad connection, decoupling, signal routing, and output-state sequencing. Place input and output return paths close to the device, provide the specified supply and bypass capacitance, and avoid introducing stubs on timing signals. Verify every panel connector voltage domain and the state-machine timing before releasing a display board. This page consolidates the verified manufacturer and distributor information, distinguishes a true drop-in replacement from a packaging-only ordering variant, and highlights application-specific design considerations that are not apparent from a basic distributor listing.
TPS66021YBGR - 20V Sink, 5V Source USB-C Switch | TI
The Texas Instruments TPS66021YBGR is a one-channel integrated USB-C Power Delivery source-and-sink power multiplexer with a 20V sink path, a 5V source path, and a 5V dead-battery VBUS LDO, housed in a 28-ball DSBGA package measuring 1.61 mm by 2.81 mm. It combines two directional power paths in a compact device intended to manage charging, powering, and protection around a USB-C connection. A USB-C power-path multiplexer is a specialized power-management integrated circuit that controls current between a connector and internal supply rails. It belongs to the hierarchy power multiplexer, power-path controller, power-management IC, and semiconductor. By combining source and sink switching, it can route external VBUS power into a system, provide regulated 5V power from an internal source, and isolate paths during faults or operating-mode changes. The verified manufacturer data identifies a 4V-to-22V sink power path and a 5V source path. The source path enters constant-current operation when its load exceeds the selected current-limit threshold. Each path includes overtemperature and reverse-current protection, while the family supports a fault indication for overcurrent and overtemperature events. The integrated high-voltage VBUS LDO provides 5V for this device and other system components under dead-battery conditions. The TPS66021 integrates a 20V USB-C sink capability and 5V source capability rather than acting only as a passive analog switch. Its VBUS-side architecture allows the system to distinguish and control external power conditions, while the source path supplies a defined output level. The fault function gives the host circuitry a signal when protection circuitry has detected an abnormal event, enabling controlled shutdown or fault recovery. Typical uses include USB-C laptop and tablet power adapters, portable equipment, battery-powered industrial products, and compact systems that must accept external USB-C power while retaining a safe internal 5V supply. The integrated source, sink, and dead-battery functions can reduce board area compared with a discrete switch network. Designers must still validate connector orientation, CC behavior, capacitor selection, current limits, thermal performance, and system power sequencing against the full manufacturer documentation. For PCB layout, follow the manufacturer package land pattern and place high-current input, output, and ground connections with short, wide paths. Place required input and output capacitors close to their associated balls and keep sensitive control and fault traces away from high-di/dt power loops. Verify the selected current threshold, startup behavior, and fault response in the final USB-C system. This page consolidates verified manufacturer descriptions, distributor availability, package information, replacement evidence, and application guidance. It also distinguishes confirmed facts from parameters that require the complete datasheet, preventing unsupported electrical or compliance assumptions during design review.
TPS8802DCPR - Smoke Alarm AFE with CO Support | TI
The Texas Instruments TPS8802DCPR is a smoke-alarm analog front end (AFE) for residential smoke detectors, integrating the regulators, amplifiers, and drivers required for a dual-wave photoelectric smoke alarm and carbon monoxide detection system. The verified distributor listing identifies a 38-pin HTSSOP package and analog input with I2C output. TI describes the device as a high-performance, multi-channel, digital-input solution whose flexible architecture suits smoke-alarm systems where precision and power consumption are critical. What is a smoke-alarm analog front end? An AFE is a semiconductor that connects physical sensing elements to an embedded system. In a photoelectric alarm, light scattering and light-absorption signals require controlled excitation, amplification, filtering, and diagnosis. The TPS8802DCPR integrates those signal-chain functions together with supporting regulators and drivers, reducing the number of discrete components and helping designers create a compact, low-power detector platform. The verified TI product information highlights a wide input-voltage range, low standby-power consumption, and power-saving features designed to support 10-year battery-powered smoke-alarm systems. Its dual-wave photoelectric architecture and CO-detection capability allow one integrated platform to combine optical smoke sensing with electrochemical CO-sensor signal conditioning. The I2C interface provides a digital control and diagnostic path, while the analog input supports direct connection to sensing circuitry. The TPS8802DCPR is intended for residential smoke alarms, combination smoke-and-CO alarms, and other safety products requiring highly integrated sensing support. Its integrated regulators and amplifiers can simplify power-tree design compared with a discrete implementation, while digital configuration can support manufacturing tests and field diagnostics. Exact electrical limits, gain settings, timing values, and pin functions were not included in the supplied verified records and therefore require confirmation from the manufacturer datasheet before design release. For battery operation, standby current is especially important because the target application is a long-lived safety device. Designers should calculate average and peak current across the sensing duty cycle, confirm regulator startup behavior, and verify that low-power modes preserve alarm thresholds and diagnostic performance. The I2C pull-up arrangement, grounding, and decoupling should follow the manufacturer layout guidance to prevent communication errors or unintended current consumption. This product page consolidates the verified distributor classification, manufacturer application description, package information, source links, and design cautions. It does not invent electrical parameters or claim unverified drop-in equivalents. Confirm the complete pinout, absolute maximum ratings, recommended operating conditions, and lifecycle status in the current Texas Instruments documentation before schematic capture or PCB release.
TRS3221EIDBR - 3-5.5V RS-232 Transceiver, ±15kV ESD | Texas Instruments
The Texas Instruments TRS3221EIDBR is a 3-V to 5.5-V single-channel RS-232 line driver/receiver with ±15-kV IEC-ESD protection, packaged in a 16-pin SSOP (DB). It operates from a single supply rail and integrates a charge-pump that generates the ±RS-232 voltage swing from the input supply, so no external ±12 V rails are required. The device supports data rates up to 250 kbps and is rated for ±15-kV HBM, ±8-kV IEC 61000-4-2 contact, and ±15-kV IEC 61000-4-2 air-gap ESD strikes on the RS-232 bus pins. An RS-232 transceiver is a type of line driver/receiver IC that converts logic-level (typically 0/3.3 V or 0/5 V CMOS/CMOS) UART signals into the ±5 V to ±15 V voltage swings required by the TIA/EIA-232-F and ITU v.28 standards. It belongs to the broader interface-IC category, sitting between the UART block of a microcontroller/SoC and a DB-9 (or equivalent) connector on the serial port. Single-channel variants like the TRS3221E serve compact, point-to-point designs where two driver/receiver channels are not needed, helping shrink BOM cost and PCB area versus 2-channel parts. Key features include 1 driver and 1 receiver per channel, a dedicated enable input for power management, an auto-powerdown mode that drops quiescent current to 1 µA typical when the cable is disconnected, and an always-active supplementary receiver that monitors the ring-indicator path even in shutdown. The device meets or exceeds the TIA/EIA-232-F and ITU v.28 electrical specifications, and is offered in industrial temperature grades of -40 °C to +85 °C. A high-speed pin-compatible upgrade, the TRSF3221E, is available where 1 Mbit/s operation is required. The TRS3221E uses an on-chip switched-capacitor voltage converter with four external 0.1 µF charge-pump capacitors. The architecture tolerates supply rails as low as 3.0 V while still generating compliant ±5 V (minimum) RS-232 output swings, which is the headline advantage over legacy 5-V-only RS-232 transceivers. Drivers are slew-rate limited to keep EMI low, and the receivers include hysteresis to reject noise on long cables. Typical applications include industrial single-port serial ports, point-of-sale terminals, handheld data collectors, factory automation equipment, medical instruments with DB-9 serial interfaces, and any embedded system that needs a robust RS-232 link from a 3.3 V or 5 V UART. Designers often pair this part with a TVS array for additional surge protection when the cable is exposed to outdoor or industrial transients. When designing with the TRS3221EIDBR, place the four charge-pump capacitors (typically 0.1 µF X7R) as close as possible to the C0+, C0-, C1+, C1- pins to minimize supply ripple. Decouple VCC with a 0.1 µF + 1 µF combination near the pin, and respect the absolute-maximum ratings on the RS-232 outputs (typically ±13.2 V) by avoiding back-drive when the IC is unpowered. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TRS3221EIRGTR - 3-5.5V RS-232 Transceiver, 250kbps, ±15kV ESD | Texas Instruments
The Texas Instruments TRS3221EIRGTR is a 3- to 5.5-V single-channel RS-232 line driver/receiver delivering 250 kbps data rate with ±15 kV IEC-ESD protection in a 16-pin VQFN (RGT) package measuring 3x3 mm with an exposed thermal pad. The device integrates one driver and one receiver, supports VCC operation from 3.0 V to 5.5 V (compatible with TTL/CMOS logic levels), and meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards. An RS-232 transceiver is a charge-pump-based interface IC that translates between TTL/CMOS logic levels (0-3.3 V or 0-5 V) and the ±5 V to ±15 V swing required by the legacy TIA/EIA-232-F serial communication standard. RS-232 transceivers belong to the broader interface IC family, which sits hierarchically between discrete level-shifters and protocol controllers (UARTs) in wired communication systems. RS-232 remains widely deployed in industrial equipment, point-of-sale terminals, medical instruments, and embedded debug ports where simplicity, point-to-point connectivity, and proven robustness outweigh the bandwidth advantages of USB or Ethernet. Key features include ±15 kV Human-Body Model (HBM) ESD protection on RS-232 pins, ±8 kV IEC 61000-4-2 contact discharge, ±15 kV IEC 61000-4-2 air-gap discharge, and an automatic powerdown feature that disables drivers when no valid RS-232 cable is detected. The on-chip dual charge pump requires only four external 0.1 µF capacitors, enabling true 5 V operation from a single 3.3 V supply without a separate ±12 V rail. The 250 kbps data rate is adequate for all standard RS-232 baud rates up to and beyond 115200 with margin to spare. The architecture combines a regulated switched-capacitor voltage doubler/inverter with a proprietary low-dropout RS-232 driver stage and a precision hysteresis receiver. ESD protection is implemented at the cable-side pins using TI's integrated silicon-controlled-rectifier (SCR) clamps. The 16-pin VQFN package's exposed pad provides a low thermal resistance path, which is useful when the part operates near the upper end of its 1 mA quiescent current budget in warm enclosures. Typical applications include industrial PLC programming ports, point-of-sale (POS) terminals, medical device serial consoles, battery-powered handhelds, and embedded debug UARTs that need robust ESD performance in the field. The TRS3221EIRGTR's small 3x3 mm footprint suits space-constrained designs such as USB-to-serial dongles, IoT gateways, and barcode scanners. When designing with this part, place the four charge-pump capacitors as close as possible to the C1+ / C1- / C2+ / C2- pins and keep the RS-232 trace lengths short to maximize ESD margin. Note that the TRSF3221E is the higher-speed (1 Mbit/s) pin-compatible alternative if 250 kbps is insufficient. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TRSF3222CPW - 3V-5.5V RS-232 Transceiver, 2/2 Drivers | TI TSSOP-20
The Texas Instruments TRSF3222CPW is a 2-driver/2-receiver RS-232 line transceiver that operates from a single 3.0V to 5.5V supply in a 20-pin TSSOP package. It supports data rates up to 1 Mbit/s and accepts 5-V logic inputs when powered from a 3.3V rail, making it ideal for mixed-voltage system designs. A line transceiver is an interface device that bridges a logic-level UART (universal asynchronous receiver/transmitter) on a host microcontroller with the RS-232 standard, which swings between +12V and -12V on the bus side. It sits within the Interface IC hierarchy (RS-232 transceiver -> line transceiver -> interface IC -> integrated circuit) and converts TTL/CMOS logic levels to TIA/EIA-232-F compliant voltage levels while protecting the host from ESD events on the cable side. The TRSF3222CPW integrates a dual charge-pump that generates the required +5.5V and -5.5V rails from a single 3.3V supply using four small 0.1 uF external capacitors. Standby current is typically 1 uA, supporting low-power portable designs. The receivers remain active in shutdown, allowing wake-up characters to be detected without waking the host. ESD protection exceeds +/-15 kV HBM on the bus pins. Typical applications include industrial point-of-sale terminals, factory automation equipment, portable diagnostic instruments, and battery-powered barcode scanners where 3.3V logic must communicate with legacy RS-232 peripherals. The wide 3.0V-5.5V supply range also makes the part suitable for USB-to-serial bridges and embedded computing modules. When designing with this device, place the four charge-pump capacitors as close to the IC as possible to minimize loop inductance. The TSSOP-20 footprint requires standard surface-mount assembly with a maximum reflow temperature per JEDEC J-STD-020. Decouple VCC with a 0.1 uF ceramic plus a bulk tantalum if the supply impedance is high.
TS3A27518ERTWR - 6-Ch 2:1 Analog Mux, 240MHz | Texas Instruments
The Texas Instruments TS3A27518ERTWR is a bidirectional 6-channel 1:2 (SPDT) analog multiplexer/demultiplexer with 6.2 ohm on-resistance, 240 MHz bandwidth, and integrated IEC 61000-4-2 ESD protection, housed in a 24-pin WQFN (4x4 mm) package operating from a 1.65 V to 3.6 V single supply. An analog multiplexer is a signal-routing semiconductor that selects one of several input channels and connects it to a common output, functioning as a digitally controlled switch for both analog and digital signals. Within the signal-chain hierarchy, it sits between passive switches and full crosspoint matrices, and belongs to the broader family of interface and analog switch ICs used in power management and signal conditioning subsystems. Key features include low 6.2 ohm typical on-resistance for minimal signal attenuation, 21.5 pF typical switch capacitance, up to 240 MHz bandwidth for high-speed rail-to-rail signal handling, and -62 dB crosstalk and OFF isolation. The device also provides isolation in power-down mode (VCC = 0 V), and 1.8 V logic-threshold-compatible control inputs that allow direct interfacing with low-voltage microcontrollers. Architecturally, the TS3A27518E uses two control pins, each simultaneously controlling three 1:2 multiplexer sections, plus an enable pin that places all outputs in high-impedance mode. Integrated ESD cells rated to IEC 61000-4-2 on the signal pins eliminate the need for external TVS diodes in USB and port-protection designs, and the device is qualified for automotive applications. Typical applications include USB 2.0 high-speed signal switching, audio jack and headset detection, battery-powered portable equipment, and general-purpose analog signal routing in industrial systems. A key design consideration is on-resistance flatness across the signal range: at lower VCC the Ron rises, so budget for insertion loss at 1.65 V operation, and keep stub lengths short to preserve the 240 MHz bandwidth. This page adds value beyond the datasheet by synthesizing distributor pricing tiers, drop-in alternatives, cross-reference data, and practical design notes in one reference.
TS3A44159RGTR - 0.45Ω Quad SPDT Analog Switch | TI
The Texas Instruments TS3A44159RGTR is a 0.45-Ω quad-channel single-pole double-throw (SPDT) analog switch housed in a 16-pin VQFN (RGT) 3x3 mm package. Operating from 1.65 V to 4.3 V, it delivers low on-state resistance with excellent Ron matching across four independent 2:1 multiplexers and supports bidirectional signal flow on every channel. Two logic-level control inputs select between the NO/NC paths of all four switches simultaneously, simplifying firmware-driven signal routing. An analog switch is a solid-state semiconductor device that routes analog or digital signals between two or more terminals under the control of a logic-level signal. It belongs to the analog switch and multiplexer family, which sits inside the broader interface IC category of integrated circuits. Quad SPDT switches are commonly used to swap between two sources on four channels at once, an arrangement also called a 2-channel DPDT function in this device. Key features include 0.45 Ω typical on-state resistance, 50 pA typical switch leakage, break-before-make switching to prevent momentary channel cross-connection, and a -3 dB bandwidth greater than 35 MHz. The control inputs are 1.8 V logic-compatible, while supply operation extends from 1.65 V to 4.3 V. ESD protection on the switch pins exceeds 2000 V per the HBM model. Architecturally the part uses CMOS transmission gates with integrated charge-pump-derived well biasing, enabling low Ron and rail-to-rail signal swing on a single positive supply. Ron flatness is held tight across the input common-mode range, which preserves harmonic distortion performance in audio paths. The device draws only microamps of quiescent current, which is essential for battery-powered systems. Typical applications include portable audio routing between headphone jack and Bluetooth receiver, USB 2.0 high-speed signal switching, SPI/I²C bus multiplexing, smartphone audio codec path selection, and PDA or portable media player source switching. Industrial uses include 4-wire resistance measurement multiplexing and analog front-end signal routing. When designing with this part, ensure that the logic-high level on IN1/IN2 exceeds 0.85 x VDD and the logic-low is below 0.15 x VDD to guarantee full CMOS-level switching. Place 0.1 µF bypass capacitors within 5 mm of the VDD pin to keep digital control noise out of the analog path. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical PCB layout guidance not found in the manufacturer datasheet alone.
TS3A4741DCNR - 0.9Ω Dual SPST Analog Switch | TI SOT-23-8
The Texas Instruments TS3A4741DCNR is a 0.9 Ω low on-resistance, low-voltage, single-supply, dual single-pole single-throw (SPST) analog switch housed in an 8-pin SOT-23 (DCN) package. It integrates two independent normally open (NO) switches, each with a 1:1 (SPST) topology, designed for 1.8 V logic compatibility when operated from a single 3 V supply rail. What is an SPST analog switch? An SPST (Single-Pole Single-Throw) analog switch is a solid-state semiconductor device that routes analog signals by electrically connecting or isolating one signal path. The TS3A4741 belongs to the broader category of analog switches and multiplexers, a subfamily of interface ICs used for signal routing in mixed-signal and low-power systems. Compared with mechanical relays, analog switches offer far faster switching speeds, lower power, smaller PCB area, and no mechanical bounce, at the cost of lower absolute voltage and current handling. Key specifications include a 0.9 Ω typical on-resistance (Ron), 1.8 V CMOS-compatible digital logic inputs, rail-to-rail analog signal handling, very low quiescent current, and integrated ESD protection. The two switches operate completely independently, allowing them to be used as separate signal paths or as complementary paths in a single function. The device is fabricated in a CMOS process and supports fast switching speeds, low off-leakage current, and bidirectional analog signal flow. Its small SOT-23-8 footprint and 1.8 V logic compatibility make it well suited to portable and battery-powered designs. Typical applications include audio signal routing in portable devices, switching between two sensors in handheld instruments, power rail multiplexing in low-power systems, and general-purpose signal gating in test equipment and consumer electronics. When designing with the TS3A4741, ensure the analog signal stays within the supply rails to avoid distortion or excessive leakage, and add 0.1 µF decoupling close to VCC. For applications requiring normally closed (NC) switches, use the pin-compatible TS3A4742. This page synthesizes verified distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet.