BQ2002TSNTR

Overview

The BQ2002TSNTR is a multi-chemistry battery management IC designed for fast charging of Nickel-Cadmium (NiCd) and Nickel-Metal Hydride (NiMH) batteries. It operates with a maximum supply voltage of 5.5V and supports a maximum charge current of 2A. The device accommodates battery packs with up to 20V charge voltage. It features direct LED output for status indication and terminates fast charging based on delta-V detection or temperature monitoring.

Feature Summary

• Supports fast charging for NiCd and NiMH battery chemistries
• Provides direct LED output for visual charge status display
• Terminates fast charge via delta-V or temperature sensing

Applications

• Portable electronic devices requiring NiCd/NiMH battery charging
• Power tools using rechargeable nickel-based batteries
• Consumer electronics with removable nickel-cadmium packs

Procurement Notes

Verify the specific suffix 'TSNTR' corresponds to the tape-and-reel packaging variant in official Texas Instruments documentation. Confirm that the component meets RoHS3 compliance requirements as specified in the manufacturer's environmental classification. Ensure the ordering part number matches the exact package type and temperature range defined in the datasheet to avoid compatibility issues.

Selection Notes

Select this component when designing systems specifically for NiCd or NiMH battery topologies requiring integrated fast-charge management. The fixed configuration suits applications where external programming is unnecessary. Verify that the system voltage does not exceed the 5.5V supply limit and that the battery pack voltage remains within the 20V maximum rating for safe operation.

Part Context

This component belongs to the BQ2002 family of battery chargers from Texas Instruments. It is distinct from other variants such as the BQ2004 series, which typically offers more advanced fuel-gauge capabilities. The BQ2002 series focuses on dedicated fast-charge control for nickel-based cells, providing a simplified solution compared to multi-chemistry fuel gauges.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Texas Instruments documentation for recommended alternatives if this specific package or suffix is unavailable.