MP2791DFP-0002-T

Battery Management Overview

The MP2791DFP-0002-T is a high-accuracy battery monitor and protector with coulomb counting, designed for 7 to 14 series-connected cells. It features an integrated analog front end (AFE) with dual ADCs for synchronous voltage and current measurements. The device supports I2C or SPI interfaces and includes high-side N-channel MOSFET drivers for charge/discharge control. It offers passive cell balancing up to 58mA per cell and comprehensive hardware-configurable protections including OCP, SCP, UVP, OVP, and temperature limits. Operating voltage ranges from 18V to 65.8V in a TQFP-48 package.

Battery Management Feature Summary

• Dual ADC architecture enables synchronous voltage and current measurements for impedance sampling
• Integrated high-side N-channel MOSFET drivers support soft-start discharge without pre-charging circuits
• Hardware-configurable protection mechanisms include overcurrent, short circuit, under/over voltage, and thermal safeguards
• Passive cell balancing capability with configurable external transistor drive options

Battery Management Applications

• Multi-cell lithium-ion battery management systems
• Portable power stations and energy storage units
• Electric vehicle auxiliary battery monitoring
• Industrial equipment requiring high-accuracy state of charge estimation

Battery Management Procurement Notes

Verify the specific suffix code against the manufacturer's latest datasheet to ensure correct configuration options. Confirm that the TQFP-48 package dimensions match your PCB footprint requirements. Check for moisture sensitivity levels and reflow soldering profile recommendations during assembly planning. Ensure compatibility with your chosen communication interface settings before finalizing the bill of materials.

Battery Management Selection Notes

Select this component when designing systems with 7 to 14 series cells requiring precise coulomb counting. It is suitable for applications needing integrated MOSFET driving and passive balancing. Consider the operating voltage range and thermal performance for your specific enclosure constraints. Evaluate the need for synchronous measurement capabilities if impedance tracking is required for system diagnostics.

Battery Management Part Context

This part belongs to the MP2791 family of battery management ICs from Monolithic Power Systems. It serves as a complete AFE solution for multi-cell stacks. The device integrates monitoring, protection, and balancing functions into a single chip. It is designed to replace discrete solutions by reducing component count and board space while improving accuracy through synchronized measurements.

Battery Management Replacement Considerations

Check for direct pin-to-pin replacements within the same MPS portfolio. Verify that alternative parts support the same number of series cells and communication protocols. Ensure equivalent protection thresholds and balancing currents are available in substitute components.