BQ2002DSNTRG4

Battery Chargers Overview

The BQ2002DSNTRG4 is a multi-chemistry battery charge controller IC from Texas Instruments, designed for nickel-cadmium and nickel-metal hydride batteries. It operates within a supply voltage range up to 6V and supports a maximum battery charge voltage of 20V. The device features a maximum charge current capability of 2A and functions reliably across an operating temperature range of 0°C to 70°C. Packaged in an 8-SOIC surface-mount case with a width of 3.90mm, this component integrates fast-charge termination logic and status indication capabilities.

Battery Chargers Feature Summary

• Supports fast charging for nickel-cadmium and nickel-metal hydride battery chemistries
• Provides direct LED output to visually display charge status
• Implements fast-charge termination using negative delta-V and peak voltage detection methods

Battery Chargers Applications

• Fast charging systems for NiCd battery packs
• Charging management for NiMH battery arrays
• Portable electronic devices requiring multi-chemistry battery support

Battery Chargers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure compatibility with required packaging and environmental specifications. Confirm that the 8-SOIC package dimensions align with your PCB layout constraints. Cross-reference the part marking code with the datasheet to authenticate the component source. Ensure the selected variant meets the intended operating temperature range requirements for your specific application environment.

Battery Chargers Selection Notes

Select this component when designing circuits for NiCd or NiMH batteries requiring integrated charge control. Consider the 2A current limit and 20V voltage ceiling to match battery pack specifications. Evaluate the 8-SOIC footprint for space-constrained designs. Verify thermal performance within the 0°C to 70°C operational window. This IC is suitable for applications needing simple LED status indication without complex microcontroller interfaces.

Battery Chargers Part Context

This device belongs to Texas Instruments' family of battery management integrated circuits. It serves as a dedicated controller for secondary cells, specifically targeting nickel-based chemistries. The component simplifies charger design by combining power regulation with termination logic. It replaces discrete solution approaches, offering a compact alternative for consumer electronics and industrial tools utilizing rechargeable nickel batteries.

Battery Chargers Replacement Considerations

The BQ2002CSNTRG4 is a documented substitute within the same product line. Verify pinout compatibility and electrical parameters before substitution. Ensure the replacement part matches the required package type and operating temperature range. Consult official Texas Instruments documentation for detailed cross-reference information.