BQ2002TSN

Overview

The BQ2002TSN is a NiCd/NiMH fast-charge management integrated circuit manufactured by Texas Instruments. It supports battery packs with four to six cells and operates within an input voltage range of 4 V to 6 V. The device provides a maximum output current of 2 A and functions reliably across a temperature range of 0 °C to 70 °C. Packaged in an 8-pin SOIC format, it integrates charge control logic for standalone applications.

Feature Summary

• Supports NiCd and NiMH battery chemistries
• Integrates dT/dt termination detection
• Operates as a standalone charge controller

Applications

• NiCd battery pack charging
• NiMH battery pack charging
• Standalone charger systems

Procurement Notes

Verify the specific suffix against the official datasheet to confirm package type and temperature grade. Confirm availability status as some sources indicate end-of-life scheduling. Ensure compatibility with system voltage requirements before procurement.

Selection Notes

Select this component for applications requiring dedicated NiCd or NiMH charge management without external microcontrollers. Verify that the required cell count falls within the supported four to six cell range. Check thermal constraints against the specified operating temperature limits.

Part Context

This part belongs to the BQ2002 family of battery charge controllers designed for nickel-based chemistries. It serves as a specialized solution for managing charge cycles in portable devices using NiCd or NiMH batteries, offering integrated safety features like temperature monitoring.

Replacement Considerations

Check for direct substitutes such as the BQ2002FSN which shares similar specifications. Verify pinout compatibility and electrical parameters before substitution. Consult manufacturer documentation for any updated versions or recommended replacements.