BQ2002DSN

Battery Chargers Overview

The BQ2002DSN is a CMOS battery-charge controller designed for NiCd and NiMH cells. It integrates fast charge with optional top-off and pulsed-trickle control in a single IC. The device supports charging one or more battery cells, providing reliable charge termination. It features a direct LED output to display charge status. The component operates within a maximum safety rating voltage of 7 V and supports a battery charge voltage up to 20 V. Maximum charge current capability is 2 A. It is housed in an 8-SOIC package.

Battery Chargers Feature Summary

• Integrates fast charge with optional top-off and pulsed-trickle control
• Provides reliable charge termination for NiCd and NiMH chemistries
• Features direct LED output for visual charge status indication

Battery Chargers Applications

• Fast charging of nickel cadmium (NiCd) battery packs
• Fast charging of nickel-metal hydride (NiMH) battery packs
• Multi-cell battery management systems requiring integrated charge control

Battery Chargers Procurement Notes

Verify the specific suffix 'DSN' corresponds to the 8-SOIC package variant when ordering. Confirm that the application requires support for both NiCd and NiMH chemistries, as this IC is specialized for these battery types. Ensure input voltage constraints align with the 7 V safety rating and 20 V battery charge voltage limits specified in the official datasheet. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity and correct revision level.

Battery Chargers Selection Notes

Select this component when designing circuits for NiCd or NiMH batteries requiring integrated fast-charge termination and status indication. It is suitable for applications needing a single IC solution for charge control rather than discrete components. Consider the 8-SOIC package size for PCB layout constraints. Verify compatibility with the required charge current and cell count before finalizing the design.

Battery Chargers Part Context

The BQ2002 series includes variants such as BQ2002D and BQ2002GSN. These are low-cost CMOS controllers from Texas Instruments. The family focuses on simple, reliable charging for older or specific industrial NiCd/NiMH applications. The DS suffix typically denotes the SOIC package type, distinguishing it from other form factors like GS (SOIC-G).

Battery Chargers Replacement Considerations

Check for exact pin-compatible replacements within the BQ2002 family, such as BQ2002D or BQ2002GSN, ensuring package and function match. No direct public substitute part numbers are confirmed in the provided documentation.