Texas Instruments TPS2052P

Overview

TPS2052P from Texas Instruments is a dual-channel high-side power distribution switch featuring two 135-mΩ N-channel MOSFETs, 500 mA continuous current per channel, active-high enable logic, and integrated short-circuit/thermal protection with open-drain overcurrent outputs. It operates from 2.7 V to 5.5 V and is used in USB host/hub power management, hot-swap interfaces, and peripheral power control where robust fault handling is required.

For engineers reviewing the TPS2052P datasheet, TPS2052P pinout, TPS2052P application, or TPS2052P equivalent, key selection considerations include its active-high enable configuration (vs. TPS2042's active-low), 8-pin PDIP package, thermal trip at ~140°C with independent channel shutdown, and 2.5-ms typical output rise time under 5.5-V/1-µF load conditions.

Technical Context

The TPS2052P integrates two independent high-side N-MOSFET switches with internal charge-pump gate drive enabling operation down to 2.7 V input. Each channel features dedicated current-sense FETs for precise overload detection and constant-current limiting, plus dual-threshold thermal protection that isolates faulty channels without disabling the second switch.

Its enable inputs are TTL/CMOS-compatible and assert low on OC1/OC2 during overcurrent or overtemperature events. The device implements undervoltage lockout (~2 V threshold) and supports bidirectional blocking - preventing reverse current flow from OUTx to IN - critical for USB VBUS isolation and hot-plug safety.

Key Specifications

Pinout & Package

TPS2052P is housed in an 8-pin plastic dual-in-line package (PDIP), through-hole mountable, with 0.3-inch body width and standard 0.1-inch pin pitch. Thermal resistance θ_JA = 106°C/W enables 500 mA operation up to +70°C ambient without heatsinking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS2042P and TPD3S014PWP, the TPS2052P uniquely delivers active-high dual-channel control with per-port thermal isolation and open-drain OC reporting - making it optimal for multi-port USB hubs and modular industrial systems requiring independent fault containment and simple GPIO interfacing.

Availability

TPS2052P is available at Aetrix Electronics and suitable for USB host/hub designs, industrial hot-swap modules, and embedded peripheral power management requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TPS2052P 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 connectivity technologies with decades of power management innovation.

The TPS20xx family was designed specifically for USB-compliant power distribution and hot-plug safety in host, hub, and peripheral applications - emphasizing fault resilience, low quiescent current, and ease of integration in space-constrained designs.

FAQ

What is the enable logic polarity of the TPS2052P?

The TPS2052P uses active-high enable inputs: EN1 and EN2 must be driven high (≥2 V) to turn on OUT1 and OUT2 respectively. This differs from the TPS2042P, which uses active-low enables. The TPS2052P simplifies direct interfacing with microcontroller GPIOs without external inverters or pull-down resistors.

Does the TPS2052P support bidirectional current blocking?

Yes, the TPS2052P configures both switches as high-side N-MOSFETs with source tied to IN and drain to OUTx. When disabled, it blocks current flow in both directions - preventing reverse current from OUTx back to IN - a critical feature for USB VBUS isolation and hot-plug safety compliance.

How does thermal protection work in the TPS2052P?

The TPS2052P implements dual-threshold thermal sensing: at ~140°C, only the overloaded channel shuts down; if temperature rises further to ~160°C, both channels disable. After cooling by ~20°C, the affected channel auto-recovers. This ensures fault containment without interrupting healthy ports - vital for multi-port USB hubs.

What is the maximum capacitive load the TPS2052P can safely drive?

The TPS2052P is characterized for 1-µF loads with 2.5-ms rise time (5.5 V). Larger capacitors (e.g., 100 µF) cause higher inrush current, potentially triggering OC1/OC2 falsely. For heavy loads, add an RC filter (e.g., 10 kΩ + 50 nF) to OC pins and use low-ESR bulk capacitors downstream to limit peak inrush seen by the TPS2052P.

Is the TPS2052P UL-recognized?

Yes, the TPS2052P is UL Listed under File No. E169910, confirming compliance with UL 60950-1/IEC 60950-1 for information technology equipment. This certification validates its suitability in commercial USB peripherals, industrial controllers, and other end-equipment requiring safety agency approval.