TPS2111APW

Overview

The TPS2111APW is an autoswitching power mux manufactured by Texas Instruments, designed for seamless source selection in portable electronics. It features a single output with a maximum current of 1.25 A and supports input voltages from 2.8 V to 5.5 V. The device utilizes N-channel internal switches with a typical on-resistance of 140 mΩ. Key timing parameters include a maximum turn-on delay of 1 ms and a maximum turn-off delay of 5 ms. It operates within a temperature range of -40°C to +85°C and is housed in an 8-pin TSSOP package.

Feature Summary

• Autoswitching capability enables automatic source selection between two inputs without external control logic.
• Integrated N-channel FETs provide low on-resistance for efficient power delivery.
• Supports dual-input configuration for redundant or alternate power sources.

Applications

• Handheld devices requiring seamless battery-to-adapter switching
• Mobile equipment needing redundant power supply management
• Portable consumer electronics utilizing multiple power sources

Procurement Notes

Verify the specific suffix 'PW' corresponds to the TSSOP-8 package variant when ordering. Confirm RoHS compliance status matches project requirements. Ensure the manufacturer part number aligns exactly with the requested autoswitching mux specifications. Cross-reference datasheet revisions to confirm pinout and electrical characteristics remain consistent with design intent.

Selection Notes

Select this component for applications requiring automatic power source redundancy in low-voltage systems. The 1.25 A output current rating suits moderate load requirements. Consider the 1 ms turn-on delay for timing-sensitive circuits. Verify that the 2.8 V minimum input voltage aligns with available power rails. Evaluate thermal performance within the specified operating temperature range.

Part Context

The TPS2111A belongs to Texas Instruments' family of autoswitching power multiplexers. This series provides integrated solutions for managing multiple power inputs in space-constrained designs. The device simplifies power path management by eliminating the need for discrete diodes or complex control circuitry, offering a compact alternative for source selection tasks.

Replacement Considerations

TPS2111PWR serves as a reel-based equivalent with identical electrical specifications. TPS2113A offers higher current capacity but may require layout adjustments. Verify package compatibility and pinout alignment before substituting to ensure direct interchangeability in existing designs.

FAQ

What is the maximum output current capability of the TPS2111APW?

The device supports a maximum output current of 1.25 A.

Does the TPS2111APW require external control signals for switching?

No, it features autoswitching functionality that automatically selects the active source without external control.