BQ2002SNTR

Overview

The BQ2002SNTR is a low-cost CMOS battery-charge controller manufactured by Texas Instruments. It provides reliable charge termination for both NiCd and NiMH batteries. The device supports fast charging with direct LED output to display charge status. Termination is achieved via -ΔV detection and maximum time limits. It operates within a supply voltage range up to 7 V and supports charge currents up to 2 A. The component is housed in an 8-SOIC package.

Feature Summary

• Provides reliable charge termination for NiCd and NiMH chemistries
• Supports fast charging with direct LED output for status indication
• Utilizes -ΔV and maximum time detection for termination

Applications

• NiCd battery pack charging systems
• NiMH battery pack charging systems
• Portable electronic devices requiring nickel-based battery management

Procurement Notes

Verify the specific suffix 'SNTR' corresponds to the tape and reel packaging configuration as documented in official Texas Instruments materials. Confirm that the operating temperature range and package type match the design requirements. Ensure compatibility with the intended battery chemistry, specifically NiCd or NiMH, as this controller is not designed for lithium-ion applications. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity and traceability.

Selection Notes

Select this component when designing chargers for nickel-cadmium or nickel-metal hydride batteries requiring cost-effective management. It is suitable for applications needing simple termination logic via voltage delta or time limits. Consider the 8-SOIC package constraints and the 2 A maximum charge current capability. Ensure the input voltage does not exceed the specified safety rating of 7 V during operation.

Part Context

The BQ2002 series includes variants such as BQ2002SN and BQ2002FSN. These are part of Texas Instruments' portfolio of battery charge controllers. The SNTR designation indicates the surface-mount SOIC package with tape and reel shipping. This family focuses on providing robust termination features for older nickel-based battery technologies commonly found in consumer electronics.

Replacement Considerations

Public confirmed substitute part numbers were not identified in the provided source material.