MPF42791DRT-0B-0000-P

Battery Management Overview

The MPF42791DRT-0B-0000-P is a battery fuel gauge IC designed for lithium-ion battery packs comprising 2 to 16 stacked cells. It features an I2C interface and operates within a temperature range of -40°C to 85°C TJ. The device supports resistance detection and includes a thermal model for accurate state-of-charge monitoring. Operating supply current is 4.3 mA, with power dissipation rated at 500 mW. It is housed in a 32-TQFN (4x4) package.

Battery Management Feature Summary

• Supports battery packs with 2 to 16 stacked cells
• Integrates resistance detection capabilities
• Includes built-in thermal model for accuracy

Battery Management Applications

• Lithium-ion battery pack management systems
• Portable electronic devices requiring precise state-of-charge tracking
• Industrial equipment using multi-cell battery configurations

Battery Management Procurement Notes

Verify the specific suffix 'P' against the manufacturer's current datasheet to confirm active status, as related variants like '-Z' are marked obsolete. Ensure compatibility with I2C bus voltage levels and confirm the 32-TQFN footprint matches the design layout. Check for moisture sensitivity level requirements during assembly.

Battery Management Selection Notes

Select this component when monitoring 2 to 16 series lithium-ion cells is required. The integrated thermal model and resistance detection offer enhanced accuracy over basic fuel gauges. Verify that the I2C interface aligns with the host controller's communication protocol and that the operating temperature range meets environmental specifications.

Battery Management Part Context

This part belongs to Monolithic Power Systems' battery management portfolio, specifically targeting advanced fuel gauge applications. It complements other MPS components by providing detailed state-of-charge data for complex multi-cell stacks, distinguishing itself from single-cell or simpler chemical-specific gauges through its support for stacked configurations and thermal modeling.

Battery Management Replacement Considerations

The variant MPF42791DRT-0B-0000-Z is listed as obsolete. No direct public substitute part numbers are confirmed in the provided documentation. Verify pinout and software compatibility if considering alternative fuel gauge ICs from different manufacturers.