MPF42791DRT-0B-0000-Z

Battery Management Overview

The MPF42791DRT-0B-0000-Z is a battery fuel gauge IC designed for lithium-ion battery packs comprising 2 to 16 stacked cells. It operates within a supply voltage range of 3 V to 3.6 V and supports I2C communication interfaces. The device provides comprehensive status information for battery strings, integrating resistance detection and thermal modeling capabilities. It is housed in a 32-pin TQFN package with an exposed pad (TQFN-EP-32) and is rated for operation up to a maximum temperature of 85°C.

Battery Management Feature Summary

• Provides comprehensive status information for lithium-ion battery strings
• Integrates resistance detection functionality
• Includes built-in thermal model capabilities

Battery Management Applications

• Battery management systems for multi-cell lithium-ion packs
• Portable electronic devices requiring accurate state-of-charge monitoring
• Industrial equipment utilizing stacked cell battery configurations

Battery Management Procurement Notes

This component is officially listed as obsolete by the manufacturer. Verify availability through secondary market channels or authorized distributors handling end-of-life inventory. Confirm part authenticity and storage conditions due to its discontinued status. Ensure compatibility with existing system designs before procurement, as no direct active replacements are guaranteed by the original manufacturer.

Battery Management Selection Notes

Select this component only if legacy support for 2 to 16 series lithium-ion cells is required. The I2C interface must align with host controller capabilities. Consider the 32-TQFN package constraints for PCB layout. Since the part is obsolete, evaluate long-term supply chain stability and potential redesign requirements for future production runs.

Battery Management Part Context

The MPF42791 belongs to the Monolithic Power Systems battery management family, specifically targeting fuel gauge applications. It serves as a drop-in solution for monitoring battery health in systems with multiple series-connected cells. The device integrates advanced features like thermal modeling to enhance safety and accuracy in energy storage applications.

Battery Management Replacement Considerations

Publicly confirmed substitute part numbers are not available for this obsolete component. Engineers should consult Monolithic Power Systems for current portfolio alternatives that match the 2-to-16 cell capacity and I2C interface requirements.