BQ24401PWRG4

Battery Chargers Overview

The BQ24401PWRG4 is a programmable switch-mode battery charger designed for NiCd and NiMH cells. It operates from a 5 V input source and delivers up to 1 A of charge current. The device integrates dT/dt termination and thermal regulation to ensure safe charging profiles. It utilizes an 8-pin TSSOP package with an operating temperature range of -20°C to +70°C.

Battery Chargers Feature Summary

• Supports fast-charge management for nickel-cadmium and nickel-metal hydride batteries
• Integrates automatic dT/dt negative delta voltage termination
• Includes thermal regulation to limit die temperature during high-power operation

Battery Chargers Applications

• Portable consumer electronics requiring NiMH battery charging
• Medical devices utilizing rechargeable nickel-based power sources
• Industrial handheld equipment with standard NiCd/NiMH packs

Battery Chargers Procurement Notes

Verify the suffix G4 indicates RoHS compliance and green material status as per Texas Instruments standards. Confirm the 8-TSSOP package dimensions match your PCB footprint requirements. Ensure the input voltage supply remains stable at 5 V to maintain proper regulation. Check for any specific ordering prefixes required by your distributor.

Battery Chargers Selection Notes

Select this component when designing systems specifically for nickel-based chemistries rather than lithium-ion applications. The integrated dT/dt termination simplifies circuit design by removing external thermistors. Verify that the 1 A output current meets the capacity requirements of the target battery pack size.

Battery Chargers Part Context

This part belongs to the BQ2440x family of programmable chargers. It serves as a dedicated solution for single-cell nickel chemistry management. The PWRG4 designation specifies the plastic small-outline package and environmental compliance attributes within the Texas Instruments portfolio.

Battery Chargers Replacement Considerations

BQ24401PWR is the non-RoHS equivalent. BQ24401D offers the same functionality in a SOIC-8 package.