TPS2110APWR

Overview

The TPS2110APWR is an autoswitching power multiplexer manufactured by Texas Instruments in an 8-pin TSSOP package. It operates within a voltage range of 2.8 V to 5.5 V and supports a maximum output current of 0.75 A per input. The device features a typical on-resistance (rDS(on)) of 120 mΩ. It includes programmable current limiting, thermal shutdown, and reverse conduction blocking. The component functions with low standby current of 0.5 μA and operating current of 55 μA. It supports both manual and automatic switching modes for seamless power transitions between two sources.

Feature Summary

• Enables seamless power switching between two independent input sources while preventing cross-conduction and reverse current flow.
• Integrates user-programmable current limiting and thermal protection mechanisms to safeguard connected loads and the device itself.
• Supports controlled output voltage transition times to minimize hold-up time and limit inrush currents during source selection.

Applications

• Portable computing devices such as personal computers and PDAs
• Mobile communication equipment including cell phones and modems
• Consumer electronics like digital cameras and MP3 players

Procurement Notes

Verify the specific suffix 'PWR' confirms the 8-TSSOP surface-mount package variant. Ensure the 'A' designation aligns with the required 120 mΩ on-resistance specification rather than lower resistance alternatives. Confirm RoHS compliance status matches project requirements. Validate that the operating temperature range covers the intended environmental conditions.

Selection Notes

Select this component when a dual-input power path with automatic source selection is required for battery and adapter systems. Choose based on the 0.75 A current capability and 120 mΩ on-resistance trade-off. Consider the 8-TSSOP footprint for space-constrained designs. Evaluate the need for programmable current limiting versus fixed limits found in other series members.

Part Context

This part belongs to the TPS211xA family of power multiplexers designed for portable applications. It serves as a bridge between primary and backup power sources. The device simplifies system design by integrating protection features typically requiring discrete components. It complements other PMIC solutions by handling power path management efficiently.

Replacement Considerations

The TPS2111A offers similar functionality but with lower on-resistance and higher current capacity. Verify pin compatibility and electrical specifications before substitution. Ensure the alternative meets the same voltage and temperature requirements.

FAQ

How does the TPS2110APWR handle switching between power sources?

It supports both manual mode via control inputs and automatic mode based on voltage sensing, ensuring seamless transitions without interrupting the load.

What protection features are integrated into this device?

The device includes thermal shutdown, reverse conduction blocking, cross-conduction blocking, and user-programmable current limiting.