BQ2002ESNTR

Battery Chargers Overview

The BQ2002ESNTR is a CMOS battery charge controller designed for NiCd and NiMH batteries. It operates within a supply voltage range of 4V to 5.5V and supports a maximum charge current of 2A. The device functions in the temperature range of 0°C to 70°C and is housed in an 8-SOIC package.

Battery Chargers Feature Summary

• Integrates fast-charge control with selectable top-off and pulse trickle charging modes.
• Supports multiple termination methods including negative delta voltage, peak voltage detection, and thermal monitoring.
• Provides direct LED output capability for visual status indication.

Battery Chargers Applications

• NiCd and NiMH battery pack management
• Standalone charger systems
• Integrated power supply designs

Battery Chargers Procurement Notes

Verify the specific suffix against official documentation to confirm pinout and functional compatibility. Confirm RoHS compliance status and moisture sensitivity level prior to integration into manufacturing processes.

Battery Chargers Selection Notes

Select this component for applications requiring reliable termination of nickel-based chemistries. Ensure the design accommodates the specified operating voltage limits and thermal constraints for stable performance.

Battery Chargers Part Context

This part belongs to the BQ2002 series of charge management ICs from Texas Instruments. It serves as a cost-effective solution for controlling linear or constant-current power supplies during the charging cycle of single-cell battery packs.

Battery Chargers Replacement Considerations

BQ2002SN

Battery Chargers FAQ

How does the BQ2002ESNTR terminate the fast-charge phase?

It terminates charging via negative delta voltage detection, peak voltage detection, maximum voltage threshold, highest temperature limit, or maximum time duration.

What battery chemistries are supported by this IC?

The device is designed specifically for Nickel-Cadmium (NiCd) and Nickel-Metal Hydride (NiMH) batteries.