BQ24901PW

Battery Chargers Overview

The BQ24901PW is a battery charger and system power management IC from Texas Instruments. It supports single-cell lithium-ion or lithium-polymer batteries with an input voltage range of 4.5 V to 28 V. The device integrates a 3 A switch, programmable charge current up to 3 A, and a 3 A system load switch. Key electrical parameters include a 5.8 V output for the load switch, a 4.2 V battery charging termination voltage, and a quiescent current of 6 µA. It operates within a temperature range of -40°C to +85°C and is housed in a TSSOP-28 package.

Battery Chargers Feature Summary

• Integrates a high-efficiency synchronous buck converter for battery charging
• Includes a dedicated low-dropout linear regulator for system power delivery
• Supports automatic source selection between adapter and battery inputs

Battery Chargers Applications

• Portable consumer electronics
• Medical devices
• Industrial handheld equipment

Battery Chargers Procurement Notes

Verify the exact suffix (e.g., PW) against the manufacturer's official datasheet to confirm pinout and thermal specifications. Ensure compatibility with the specific battery chemistry and required charge current settings for your design. Confirm RoHS compliance status through authorized channels before finalizing procurement.

Battery Chargers Selection Notes

Select this component when a combined solution for both battery charging and system power distribution is required. It is suitable for designs needing a single IC to manage input source priority, charge regulation, and system load switching. Consider the TSSOP-28 package for surface-mount assembly constraints.

Battery Chargers Part Context

This part belongs to the BQ249xx family of integrated power path managers. These ICs are designed to simplify power supply design by combining charging and system management functions into a single compact solution, reducing the overall bill of materials and board space compared to discrete implementations.

Battery Chargers Replacement Considerations

Consult the official cross-reference guide for verified substitutes. Common alternatives within the same family may include variants with different current ratings or package options, but direct pin-to-pin replacements must be confirmed via manufacturer documentation.