TPS2214

Overview

The TPS2214A is a dual-slot PC Card power switch manufactured by Texas Instruments. It provides two independent power outputs, xVCC and xVPP, designed to meet PC Card Industry Association specifications. The device features a serial interface for control and includes built-in protection mechanisms such as overcurrent and thermal shutdown. It operates within an industrial temperature range of -40°C to 70°C and is available in a 24-pin SSOP package.

Feature Summary

• Dual-slot architecture supporting independent xVCC (up to 1A) and xVPP (up to 250mA) power rails
• Serial interface (DATA, CLOCK, LATCH) for communication with PC Card controllers
• Integrated overcurrent detection and thermal protection circuits
• Compliant with PC Card Industry Association power interface standards

Applications

• Portable computers requiring PCMCIA/CardBus power management
• Personal Digital Assistants (PDAs)
• Digital cameras with expansion slot capabilities
• Barcode scanners utilizing PC Card interfaces

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package type and temperature rating. Ensure the component matches the required 24-pin SSOP configuration. Confirm RoHS compliance status if environmental regulations apply to the end product. Cross-reference the part number with official Texas Instruments documentation to avoid counterfeit or obsolete stock issues.

Selection Notes

Select the TPS2214A when dual independent power rails are required for PC Card slots. Compare current ratings against load requirements; xVCC supports up to 1A while xVPP supports up to 250mA. Consider the serial interface complexity versus simpler GPIO-controlled switches. Verify that the operating temperature range of -40°C to 70°C meets the system's environmental constraints.

Part Context

The TPS2214A belongs to the TPS22xx series of power switches from Texas Instruments. It is functionally similar to the TPS2216A but differs in package options, with the TPS2214A typically offered in SSOP-24. Both devices serve as power controllers for PC Card applications, providing regulated voltage outputs and protection features.

Replacement Considerations

The TPS2216A is a direct functional alternative within the same family. Verify pin compatibility and package differences, as the TPS2216A may be available in HTSSOP-32 or SSOP-30 configurations. Ensure the replacement part maintains the same serial interface timing and electrical characteristics.