BQ21040DBVR

Battery Chargers Overview

The BQ21040DBVR is a single-cell lithium-ion and lithium-polymer battery charger IC manufactured by Texas Instruments. It operates within an input voltage range up to 6.45 V and provides a regulated output of 4.2 V. The device supports a maximum charging current of 800 mA in a compact SOT-23-6 surface-mount package. It functions across a temperature range of 0°C to 125°C TJ and includes integrated fault protection mechanisms.

Battery Chargers Feature Summary

• Integrated safety features including overtemperature, overvoltage, and short-circuit protection for reliable operation.
• Supports USB interface connectivity for power source integration.
• Designed specifically for efficient management of single-cell lithium-ion and lithium-polymer batteries.

Battery Chargers Applications

• Portable electronic devices requiring single-cell battery charging
• USB-powered consumer electronics
• Battery management systems for lithium-based power sources

Battery Chargers Procurement Notes

Verify the specific suffix 'DBVR' corresponds to the tape-and-reel packaging configuration when sourcing components. Confirm that the operating environment remains within the specified 0°C to 125°C junction temperature limits to ensure device longevity. Ensure compatibility with the 6.45 V maximum input voltage constraint during system design validation.

Battery Chargers Selection Notes

Select this component for applications requiring a compact, single-cell charging solution with integrated safety protections. The SOT-23-6 package suits space-constrained designs. Verify that the required charging current does not exceed the 800 mA maximum rating. Consider the thermal performance requirements given the high junction temperature capability.

Battery Chargers Part Context

This part belongs to the BQ21040 family of battery chargers from Texas Instruments. It is designed as a cost-effective, high-efficiency solution for portable electronics. The device integrates all necessary control logic and power switches for a complete charging system without external components.

Battery Chargers Replacement Considerations

The BQ21040DBVT is a verified substitute offering identical electrical specifications but in cut-tape packaging instead of reel packaging. Both parts share the same functional capabilities and pinout configuration.