BQ24401DR

Battery Chargers Overview

The BQ24401DR is a programmable switch-mode NiCd/NiMH battery charger manufactured by Texas Instruments. It utilizes an external power MOSFET and inductor to achieve high-efficiency charging for single-cell batteries. The device integrates dT/dt termination, thermal regulation, and input current limiting. It operates within a supply voltage range of 4.5 V to 30 V and supports charge currents up to 2 A. The component is housed in an 8-pin SOIC package.

Battery Chargers Feature Summary

• Integrates dT/dt negative delta temperature rate-of-change termination for precise full-charge detection
• Supports programmable input current limiting to protect upstream power sources
• Includes thermal regulation circuitry to reduce charge current during high-temperature conditions

Battery Chargers Applications

• Portable electronic devices requiring efficient NiCd or NiMH charging
• Battery management systems with strict input current constraints
• Applications utilizing external power stages for high-current fast charging

Battery Chargers Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and temperature range. Ensure compatibility with external MOSFET and inductor selections based on required charge current. Confirm RoHS compliance status through manufacturer documentation prior to integration.

Battery Chargers Selection Notes

Select this component for applications requiring high-efficiency switching regulation rather than linear charging. Evaluate the need for external components such as power switches and inductors. Consider the operating temperature range and package availability relative to design constraints.

Battery Chargers Part Context

This part belongs to the BQ2440x family of programmable chargers designed for Nickel-based chemistries. It serves as a cost-effective solution for portable electronics where efficiency and thermal management are critical. The device complements linear chargers by offering higher efficiency at elevated charge currents.

Battery Chargers Replacement Considerations

The BQ24401D is a direct equivalent variant within the same product family. Verify pinout and electrical specifications before substitution.