BQ2031SN-A5TR

Battery Chargers Overview

The BQ2031SN-A5TR is a lead-acid battery charge management integrated circuit manufactured by Texas Instruments. It supports adjustable output voltage and delivers an output current of 2 A. The device operates on a supply voltage ranging from 4.5 V to 5.5 V with a typical operating current of 2 mA. It is housed in a 16-SOIC surface-mount package and functions within a temperature range of -20°C to +70°C.

Battery Chargers Feature Summary

• Implements three-stage charging methodology including qualification, fast charge, and float charge phases for lead-acid batteries.
• Integrates thermal monitoring that suspends charging timers when temperature exceeds operational limits.
• Provides configurable LED driver outputs for visual indication of charge status through multiple display modes.

Battery Chargers Applications

• Lead-acid battery charger systems requiring automated charge cycle control
• Battery management circuits utilizing microcontroller-based monitoring
• Power supply units designed for single-cell lead-acid battery maintenance

Battery Chargers Procurement Notes

Verify the specific suffix against official documentation to confirm package type and availability. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the ordering part number matches the exact pinout and functional specifications required for your design.

Battery Chargers Selection Notes

Select this component for applications requiring dedicated lead-acid charging profiles rather than generic lithium chemistries. Consider the 16-SOIC package constraints and the need for external power switching components. Evaluate the thermal management requirements given the integrated temperature monitoring features.

Battery Chargers Part Context

This IC belongs to the BQ2031 series of battery chargers. It is distinct from gas gauge devices like the BQ2050 or BQ2052 which monitor state-of-charge rather than managing the charging process directly. The BQ2031 focuses on controlling the power delivery to the battery cell.

Battery Chargers Replacement Considerations

BQ2031SN-A5G4 is listed as a discontinued variant with BQ2031SN-A5 recommended as the manufacturer replacement. BQ24650RVAR is identified as a similar alternative product.