Texas Instruments TPS2210APWP

Overview

TPS2210APWP from Texas Instruments is a single-slot PC CardBus power-interface switch IC that controls distribution of 3.3 V, 5 V, and 12 V to one PC Card socket. It features break-before-make switching, integrated short-circuit protection (1 A xVCC / 200 mA xVPP), thermal shutdown at 135°C, and low r_DS(on) (85 mΩ @ 3.3 V, 95 mΩ @ 5 V). It is used in notebook computers and PDAs for compliant, fuseless card power management.

For engineers reviewing the TPS2210APWP datasheet, TPS2210APWP pinout, TPS2210APWP application, or TPS2210APWP equivalent, key selection criteria include its 24-pin HTSSOP (PWP) package, P2C serial interface compatibility with CardBus controllers, UVLO thresholds (2.7 V on 3.3V pin), and independent VCC/VPP switching capability per slot.

Technical Context

The TPS2210APWP implements dual-rail MOSFET-based power switching with separate control paths for VCC (3.3 V/5 V) and VPP (3.3 V/5 V/12 V) outputs. Its internal current-limit sensing operates per-output without external sense resistors, using dedicated FETs to enforce 1 A (xVCC) and 200 mA (xVPP) steady-state limits while reporting faults via open-drain OC output.

It integrates UVLO circuitry with hysteresis (100 mV) on each input rail and a power-on reset (POR) that asserts internal RESET below 1.7 V on the 3.3 V supply. The device uses a 3-wire P2C serial interface (CLOCK, DATA, LATCH) operating up to 2.5 MHz to configure slot enable/disable states and monitor status.

Key Specifications

Pinout & Package

TPS2210APWP is housed in a 24-pin HTSSOP (PWP) package with exposed thermal pad, optimized for compact PC Card host designs requiring efficient heat dissipation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PC Card power-switching applications.

Compared with TPS2204APWP and TPS2206ADB, the TPS2210APWP provides optimal integration for single-slot PC Card hosts-offering identical protection and interface functionality in a smaller, thermally enhanced HTSSOP package without redundant outputs or legacy pinouts.

Availability

TPS2210APWP is available at Aetrix Electronics and suitable for notebook computers, personal digital assistants (PDAs), and set-top boxes requiring stable component supply across extended production lifecycles.

Supply support for TPS2210APWP 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 company headquartered in Dallas, Texas, specializing in analog, embedded processing, and power management technologies.

The TPS22xx family was designed specifically to meet PC Card Standard power-distribution requirements, delivering integrated, fuseless, multi-rail switching for portable computing and peripheral expansion systems.

FAQ

What is the maximum continuous output current supported by the TPS2210APWP on its xVCC outputs?

The TPS2210APWP supports up to 1 A continuous output current on each xVCC output (AVCC) at TJ = 100°C, as specified in the Short-Circuit Output Current (IOS(xVCC)) parameter. This rating ensures reliable operation under worst-case thermal conditions while maintaining PC Card-compliant voltage regulation across the full temperature range. The TPS2210APWP achieves this with an 85-mΩ r_DS(on) at 3.3 V and 95-mΩ at 5 V.

Does the TPS2210APWP support 12-V VPP programming for flash memory cards?

Yes, the TPS2210APWP supports 12-V VPP programming through its AVPP output pin. It delivers 12 V with a typical r_DS(on) of 2.5 Ω at TJ = 100°C and provides a steady-state short-circuit limit of 200 mA, sufficient for standard PC Card flash erase/write cycles. The 12V input pins (7 and 20) must be externally tied together to ensure proper current sharing and thermal balance within the TPS2210APWP.

How does the TPS2210APWP handle overcurrent events, and what role does the OC pin play?

The TPS2210APWP detects overcurrent on each output independently using internal sense FETs and asserts the open-drain OC pin low within 3 µs (xVPP) or 10 µs (xVCC) of fault onset. This signal allows the host controller to log errors or initiate recovery. The TPS2210APWP continues current limiting until the fault clears or thermal shutdown activates at 135°C. No external components are required for OC pullup beyond a standard 10-kΩ resistor.

Can the TPS2210APWP be used in systems that require simultaneous 3.3-V and 5-V card operation?

Yes, the TPS2210APWP supports concurrent 3.3-V and 5-V card operation via independent AVCC outputs. Its design allows either rail to be active simultaneously, with separate current limiting and UVLO monitoring per input. The TPS2210APWP's 3.3V and 5V inputs (pins 13–14 and 1–2) can remain powered during mixed-voltage card insertion, and its break-before-make architecture prevents bus contention during rail transitions.

What is the purpose of the SHDN and RESET inputs on the TPS2210APWP, and how do they differ?

The SHDN input is an asynchronous active-low shutdown command that places all outputs in high-impedance state and disables internal regulators, while RESET is an active-low initialization signal forcing all switches to Hi-Z and activating discharge paths. SHDN retains register state and responds faster; RESET performs a full hardware reset, clearing internal latches and asserting discharge switches regardless of serial command state. Both are internally pulled up (SHDN) or pulled down (RESET) to ensure fail-safe default behavior in the TPS2210APWP.