Texas Instruments TPS2062CD

Overview

TPS2062CD from Texas Instruments is a dual-channel, current-limited power-distribution switch designed for USB and peripheral power management. It delivers 1 A per channel with ±20% current-limit tolerance, 70 mΩ typical R_DS(on), fast 2 µs overcurrent response, and operates from 4.5 V to 5.5 V - ideal for protecting downstream USB ports in laptops and desktops against short circuits and heavy capacitive loads.

For engineers reviewing the TPS2062CD datasheet, TPS2062CD pinout, TPS2062CD application, or TPS2062CD equivalent, key selection criteria include its active-low enable logic, deglitched fault reporting (FLT1/FLT2), built-in softstart, reverse current blocking, and SOIC-8 package compatibility with TI's broader TPS20xxC portfolio.

Technical Context

The TPS2062CD integrates two independent high-side N-channel MOSFET power switches with precise current limiting and thermal shutdown. Each channel enters constant-current mode when load exceeds 1.28–1.94 A (typical 1.61 A), maintaining predictable fault behavior under short-circuit conditions.

Its control architecture features active-low EN1/EN2 inputs, open-drain FLT1/FLT2 outputs with 7–13 ms deglitching, and internal softstart that limits inrush current during turn-on - all coordinated without external components across the 4.5–5.5 V input range.

Key Specifications

Pinout & Package

TPS2062CD is housed in an 8-pin SOIC (D package) with 3.90 mm × 4.90 mm body size and PowerPAD™ thermal pad connected internally to GND for enhanced heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS2062CD, TPS2062C-2 removes output discharge while retaining identical protection and thermal performance, whereas TPS2066C changes enable polarity - both require board-level validation for signal timing and fault-handling compatibility.

Availability

TPS2062CD is available at Aetrix Electronics and suitable for USB port protection, laptop peripheral power management, and set-top box auxiliary power distribution requiring stable component supply and long-term industrial availability.

Supply support for TPS2062CD 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 USB power delivery and protection solutions.

The TPS20xxC family was engineered specifically for USB-compliant power distribution - delivering integrated current limiting, fault reporting, and softstart in compact packages for consumer and computing applications.

FAQ

What is the maximum continuous output current per channel for the TPS2062CD?

The TPS2062CD provides a rated continuous output current of 1 A per channel, with a typical current-limit threshold of 1.61 A and ±20% tolerance. This allows reliable operation into USB-compliant loads while maintaining safe thermal margins in SOIC-8 packaging under ambient temperatures up to 85°C.

Does the TPS2062CD include reverse current blocking?

Yes, the TPS2062CD incorporates integrated reverse current blocking, preventing backflow from the OUT1 or OUT2 pins to the IN pin when the switch is disabled or the load is powered externally - a critical feature for hot-swap and battery-backed systems.

What is the enable logic polarity for the TPS2062CD?

The TPS2062CD uses active-low enable inputs (EN1 and EN2). Pulling either EN pin low turns on its respective channel; pulling it high disables the channel. This simplifies direct interfacing with microcontroller GPIOs configured as open-drain or push-pull outputs.

How does the TPS2062CD handle short-circuit faults?

Upon detecting an overcurrent condition, the TPS2062CD enters constant-current mode at its preset limit (~1.61 A), limiting fault energy. It asserts the corresponding FLT1 or FLT2 pin low (open-drain) with 7–13 ms deglitching and initiates thermal shutdown if junction temperature exceeds 135°C - enabling robust, self-protecting operation.

Is output discharge functionality present in the TPS2062CD?

Yes, the TPS2062CD includes internal output discharge circuitry (RPD ≈ 400–600 Ω), which actively pulls OUT1 and OUT2 to GND when the device is disabled - ensuring safe, rapid voltage decay for downstream logic and compliance with USB power-state transition requirements.