Texas Instruments TPS2092DR

Overview

TPS2092DR from Texas Instruments is a dual-channel high-side power-distribution switch featuring two independent 80-mΩ N-channel MOSFETs, 250 mA continuous current per channel, and integrated thermal/short-circuit protection with open-drain overcurrent (OC) outputs. It operates from 2.7 V to 5.5 V, supports CMOS/TTL enable inputs, and delivers 2.5-ms typical rise time-ideal for USB peripheral power control and hot-plug module management.

For engineers reviewing the TPS2092DR datasheet, TPS2092DR pinout, TPS2092DR application, or TPS2092DR equivalent, key selection criteria include per-channel current limiting (0.5 A short-circuit threshold), independent enable polarity options (active-high/active-low variants), SOIC-8 package thermal performance (172°C/W θ_JA), and UVLO activation at ~2 V to ensure safe hot-insertion behavior.

Technical Context

The TPS2092DR integrates an internal charge pump enabling gate drive for its dual N-channel high-side switches down to 2.7 V input-eliminating external components while maintaining controlled 2.5-ms rise/fall times to suppress inrush current and EMI. Each channel features independent enable logic and dedicated overcurrent sensing via sense-FET architecture-not resistive shunts-preserving low forward voltage drop.

Thermal protection uses a dual-trip mechanism: first trip at ~140°C isolates only the faulted channel; second trip at ~160°C disables both channels. The OC output is open-drain, active-low, and remains asserted until fault removal-enabling system-level fault latching and host controller monitoring without additional circuitry.

Key Specifications

Pinout & Package

TPS2092DR is housed in an 8-pin SOIC (D) package with exposed pad not present; thermal resistance θ_JA = 172°C/W. Pin functions are validated per TI SLVS245C datasheet for TPS2092 variant with active-high enable configuration.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual high-side power switch applications.

Compared with TPS2092DR, TPS2051BDR offers higher single-rail current but sacrifices channel independence and diagnostics, while AP22652WU-7 delivers superior conduction efficiency at the cost of missing critical safety features like UVLO and dual-stage thermal shutdown-making TPS2092DR the optimal choice for robust, fault-aware 250 mA dual-rail applications.

Availability

TPS2092DR is available at Aetrix Electronics and suitable for USB peripheral management, hot-pluggable industrial modules, and embedded power sequencing requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for TPS2092DR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management ICs, with decades of expertise in high-reliability power-switching solutions.

The TPS209x family was designed specifically for robust hot-plug and capacitive-load power distribution in computing, industrial, and communications equipment-emphasizing fault resilience, low EMI, and seamless integration with host controllers.

FAQ

What is the enable polarity configuration for TPS2092DR?

The TPS2092DR uses active-high enable inputs (EN1 and EN2), meaning a logic high ≥2.0 V turns on the respective channel. This is confirmed in the "AVAILABLE OPTIONS" table of the SLVS245C datasheet, which lists TPS2092D/DR as the active-high variant for both enables. Pulling ENx low disables the channel and reduces supply current to ≤10 μA.

Does TPS2092DR support bidirectional current flow?

Yes, the TPS2092DR is explicitly specified as a bidirectional switch in its datasheet FEATURES section. Its N-channel high-side architecture blocks reverse current (OUT→IN) when disabled and permits forward current (IN→OUT) when enabled-critical for applications like battery backup paths or redundant supplies where backfeed must be prevented.

What is the short-circuit current limit of TPS2092DR?

The TPS2092DR limits short-circuit output current to a typical value of 0.5 A per channel, as stated in the ELECTRICAL CHARACTERISTICS table under "IOS Short-circuit output current." This limit is enforced via sense-FET current regulation and holds across input voltages from 2.7 V to 5.5 V and temperatures from 0°C to 125°C.

How does the OC pin function on TPS2092DR?

The OC pin on TPS2092DR is an open-drain, active-low output that asserts low during overcurrent or overtemperature events on either channel. It remains latched low until the fault condition is removed, allowing host microcontrollers to detect and respond to faults without polling. An external pull-up resistor (e.g., 10 kΩ to 3.3 V) is required for proper logic-level signaling.

What is the maximum junction temperature for continuous operation of TPS2092DR?

The TPS2092DR has a recommended operating virtual junction temperature range of 0°C to 125°C, per the RECOMMENDED OPERATING CONDITIONS table. Thermal shutdown initiates at ~140°C (first trip) and fully disables both channels at ~160°C. Continuous operation above 125°C violates specification and risks reliability degradation-even if thermal protection activates.