MPF42790DRT-0B-YYYY-P

Battery Management Overview

The MPF42790DRT-0B-YYYY-P is a high-accuracy fuel gauge IC from Monolithic Power Systems, designed for precise battery state-of-charge monitoring. It features an integrated coulomb counter and dual ADC architecture to minimize measurement errors. The device supports communication via the I2C interface and operates within a specified voltage range suitable for single-cell lithium-ion applications. It includes hardware-configurable protections such as over-current, short-circuit, undervoltage, and overvoltage protection. The component is housed in a compact WLCSP package, facilitating integration into portable electronics and IoT devices requiring reliable power management.

Battery Management Feature Summary

• High-accuracy coulomb counting with low state-of-charge error
• Integrated dual ADC architecture for synchronized current and voltage measurement
• Hardware-configurable protection mechanisms including OCP, SCP, UVP, and OVP
• I2C digital interface for system communication

Battery Management Applications

• Portable consumer electronics
• Internet of Things (IoT) devices
• Wearable technology
• Medical devices

Battery Management Procurement Notes

Verify the specific suffix code against official MPS documentation to confirm pinout and functional variations. Ensure compatibility with your system's I2C address configuration. Check for RoHS compliance status in the latest datasheet. Confirm package availability and lead times through authorized distributors. Validate thermal requirements for your specific PCB layout.

Battery Management Selection Notes

Select this component when high precision in state-of-charge estimation is critical. Consider its small footprint for space-constrained designs. Evaluate the need for external calibration based on application accuracy requirements. Compare performance metrics against alternative fuel gauges if higher cell counts or different interfaces are needed. Ensure the operating temperature range meets your environmental specifications.

Battery Management Part Context

This part belongs to the MPF4279x family of fuel gauges, which are designed for single-cell lithium-ion batteries. The family offers various packages and configurations to suit different design needs. These devices are commonly used in applications where accurate battery monitoring extends device runtime and safety. The MPF42790 variant specifically targets cost-sensitive yet performance-demanding markets.

Battery Management Replacement Considerations

Consult MPS official documentation for direct pin-to-pin replacements. Verify electrical parameter compatibility before substituting. Check for any functional differences in protection thresholds. Ensure interface protocols remain compatible with existing firmware.

Battery Management FAQ

What is the typical state-of-charge error for the MPF42790?

The device typically achieves a state-of-charge error of less than ±2% when used with compatible fuel gauge algorithms.

Does the MPF42790 support external calibration?

Yes, the device allows for external calibration to further enhance measurement accuracy beyond factory defaults.