BQ24740RHDR

Battery Chargers Overview

The BQ24740RHDR is a host-controlled multi-chemistry battery charger manufactured by Texas Instruments. It integrates power MOSFETs and supports various battery chemistries including Li-ion, Li-polymer, NiCd, and NiMH. The device features an SMBus interface for configuration and monitoring, enabling precise control over charging parameters such as input current limit, charge voltage, and termination current.

Battery Chargers Feature Summary

• Integrates internal power MOSFETs to reduce external component count
• Supports multiple battery chemistries via programmable settings
• Provides SMBus communication for system host control and status reporting

Battery Chargers Applications

• Portable computing devices
• Industrial equipment with rechargeable batteries
• Medical instrumentation requiring safe battery management

Battery Chargers Procurement Notes

Verify the specific suffix RHDR indicates the tape and reel packaging variant when ordering. Confirm that the host controller supports the required SMBus protocol for proper integration. Ensure the application design accounts for the thermal performance of the TSSOP package under maximum load conditions.

Battery Chargers Selection Notes

Select this component when a host processor requires direct control over the charging profile rather than autonomous operation. It is suitable for designs needing support for diverse battery types within a single hardware platform. Consider the integrated MOSFETs for simplified PCB layout compared to discrete solutions.

Battery Chargers Part Context

This part belongs to the BQ247xx series of intelligent battery chargers from Texas Instruments. These devices are designed for applications where the system host manages the charging process through a digital interface, offering flexibility in defining charge cycles for different battery technologies.

Battery Chargers Replacement Considerations

The BQ24745 is a similar SMBus-controlled charger but includes an input current detect comparator. Verify if the additional comparator functionality is required or if the simpler host-controlled architecture of the BQ24740 is sufficient for the design.