Texas Instruments TPS2210APWPR

Overview

TPS2210APWPR from Texas Instruments is a single-slot PC CardBus power-interface switch IC that integrates 3.3-V, 5-V, and 12-V VCC/VPP switching with break-before-make control, 85-mΩ rDS(on) for 3.3-V VCC outputs, thermal shutdown at 135°C, and open-drain overcurrent reporting (OC). It enables compliant power delivery to PC Cards in notebook computers and PDAs.

For engineers reviewing the TPS2210APWPR datasheet, TPS2210APWPR pinout, TPS2210APWPR application, or TPS2210APWPR equivalent, this page delivers verified electrical parameters, validated HTSSOP-24 package mapping, confirmed serial interface timing (2.5-MHz clock), and two field-validated alternative parts for PC Card power management designs.

Technical Context

The TPS2210APWPR implements dual-rail switching logic with independent 3.3-V/5-V VCC and 3.3-V/5-V/12-V VPP outputs controlled via a 3-wire P2C-compatible serial interface (CLOCK, DATA, LATCH). Its internal current-limit sensing activates per-output fault isolation without fuses.

Break-before-make switching prevents cross-conduction during voltage rail transitions, while UVLO circuitry disables all switches if VI(3.3V) drops below 2.7 V. Thermal shutdown (135°C trip, 10°C hysteresis) and short-circuit response times of 10 µs (5-V xVCC) and 3 µs (5-V xVPP) ensure robust system-level protection.

Key Specifications

Pinout & Package

TPS2210APWPR is housed in a 24-pin HTSSOP (PWP) package with exposed thermal pad, rated for 2491.6 mW dissipation at 25°C and 498.33 mW at 85°C ambient.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS2210APWPR, TPS2204APWPR offers identical single-slot functionality in the same HTSSOP-24 package but omits redundant control logic, while TPS2206ADBR provides dual-slot support at the cost of larger footprint and different pin assignment-making TPS2210APWPR optimal for space-constrained single-slot applications requiring minimal layout change.

Availability

TPS2210APWPR is available at Aetrix Electronics and suitable for notebook computers, PDAs, and digital cameras requiring stable component supply with guaranteed long-term lifecycle support and traceable sourcing.

Supply support for TPS2210APWPR 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 specializing in analog, embedded processing, and connectivity technologies with over 50 years of innovation in power management ICs.

The TPS22xx family was designed specifically for PC CardBus-compliant power distribution, addressing the need for integrated, fuseless, thermally robust switching in portable computing platforms adhering to PCMCIA standards.

FAQ

What is the maximum continuous output current supported by the TPS2210APWPR on its 3.3-V xVCC outputs?

The TPS2210APWPR supports up to 750 mA continuous output current on each 3.3-V xVCC output at TJ = 100°C, as specified in the Electrical Characteristics table under "rDS(on)" test conditions. This rating ensures compliance with PC Card average current requirements while maintaining voltage regulation within 5% under worst-case thermal conditions. The TPS2210APWPR achieves this with an 85-mΩ typical on-resistance, limiting voltage drop to 64 mV at full load.

Does the TPS2210APWPR support 12-V VPP programming for flash memory cards?

Yes, the TPS2210APWPR supports 12-V VPP programming through its AVPP output pin (Pin 8), which delivers regulated 12-V, 5-V, or 3.3-V to the PC Card's VPP terminal. It provides a 200-mA typical short-circuit current limit for 12-V VPP, enabling safe flash erase/write cycles while protecting against sustained shorts. The 12-V inputs (Pins 7 and 20) must be externally connected to maintain proper current sharing per the datasheet.

How does the TPS2210APWPR implement overcurrent protection without external fuses?

The TPS2210APWPR uses internal sense FETs-not external resistors or polyfuses-to monitor current on each xVCC and xVPP output independently. When overcurrent is detected, it limits the affected output to 1.4 A (xVCC) or 200 mA (xVPP) and asserts the open-drain OC pin low. This architecture eliminates series resistance penalties, preserves voltage regulation, and enables diagnostic feedback to the host controller-fully replacing traditional fuse-based protection in PC Card systems.

What is the purpose of the LATCH pin on the TPS2210APWPR, and what is its internal configuration?

The LATCH pin (Pin 5) on the TPS2210APWPR serves as the serial interface strobe that captures the 9-bit data word (D0–D8) presented on the DATA line synchronized to the CLOCK signal. It features an internal pulldown resistor, meaning it defaults to logic low when unconnected-ensuring predictable startup behavior and preventing spurious latch events. This design simplifies system integration by eliminating the need for an external pull-down component.

Can the TPS2210APWPR operate with only a 3.3-V supply, or are 5-V and 12-V inputs mandatory?

The TPS2210APWPR requires VI(3.3V) on Pins 13 and 14 for core logic operation and 3.3-V xVCC output functionality; this supply is mandatory. VI(5V) on Pins 1, 2, and 24 is required only when enabling 5-V xVCC outputs, and VI(12V) on Pins 7 and 20 is required only for 12-V xVPP operation. The datasheet explicitly states "5 V and 12 V are only required for their respective functions," allowing partial-rail operation in 3.3-V-only PC Card systems.