BQ24123RHLTG4

Battery Chargers Overview

The BQ24123RHLTG4 is a synchronous switch-mode battery charger designed for two-cell lithium-ion (Li-Ion) and lithium-polymer (Li-Po) batteries. Manufactured by Texas Instruments, this device integrates high-efficiency power switches to support input voltages up to 16V with an absolute maximum rating of 20V. It features a 2A charge current capability and includes enhanced electromagnetic interference (EMI) performance. The component operates within a temperature range of -40°C to +85°C and utilizes a 20-pin QFN package.

Battery Chargers Feature Summary

• Synchronous switch-mode buck topology optimized for high efficiency in single and dual-cell configurations
• Integrated overvoltage protection and thermal monitoring via a dedicated thermistor pin
• Enhanced EMI performance characteristics suitable for noise-sensitive portable applications

Battery Chargers Applications

• Portable computing devices requiring dual-cell battery management
• Industrial handheld equipment utilizing Li-Ion or Li-Po power sources
• Medical devices necessitating reliable and efficient charging solutions

Battery Chargers Procurement Notes

Verify the specific suffix 'RHLTG4' against official Texas Instruments documentation to confirm lead-free status and tape-and-reel packaging specifications. Ensure compatibility with existing PCB footprints for the 20-pin QFN package. Cross-reference the RoHS compliance status with current regulatory requirements before finalizing procurement orders.

Battery Chargers Selection Notes

Select this component when designing systems that require charging for two series-connected lithium cells. It is appropriate for applications needing integrated power FETs to reduce external component count. Consider the enhanced EMI features if the design operates in environments sensitive to switching noise. Verify that the input voltage source does not exceed the absolute maximum ratings.

Battery Chargers Part Context

This part belongs to the BQ2412x family of synchronous switch-mode chargers from Texas Instruments. It shares architectural similarities with the BQ24120 and BQ24125 but is specifically configured for two-cell series battery stacks. The family is characterized by integrated power switches and programmable charge parameters.

Battery Chargers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided reference data. Consult official Texas Instruments documentation for validated cross-reference information.