PAC1944T-E/4MX

Current Regulation/Management Overview

The PAC1944T-E/4MX is a high-side current and power monitor manufactured by Microchip Technology. It features four independent channels for simultaneous measurement of voltage, current, and power in multi-rail systems. The device operates within a supply voltage range of 2.7V to 5.5V and supports high-side sensing configurations. It integrates an accumulator function for energy monitoring and provides digital output via an I²C interface. The component is designed for applications requiring precise power management and system health monitoring.

Current Regulation/Management Feature Summary

• Four-channel architecture enables simultaneous monitoring of multiple power rails
• Integrated accumulator functionality allows for cumulative energy tracking
• Supports high-side sensing for accurate current measurement in positive rail configurations

Current Regulation/Management Applications

• Multi-rail server power distribution units
• Industrial equipment power monitoring
• Battery management systems requiring energy accumulation data

Current Regulation/Management Procurement Notes

Verify the specific suffix 'E/4MX' against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with your I²C bus voltage levels. Confirm that the high-side sensing requirements match your circuit topology before procurement.

Current Regulation/Management Selection Notes

Select this component when four independent power channels require simultaneous monitoring with energy accumulation capabilities. It is suitable for designs needing high-side current sensing with digital I²C output. Consider thermal performance and package constraints during layout planning.

Current Regulation/Management Part Context

This part belongs to Microchip's PAC19xx series of power monitors. These devices are designed for embedded systems requiring detailed power analysis. The PAC1944 variant specifically offers four channels, distinguishing it from lower-channel counterparts in the family.

Current Regulation/Management Replacement Considerations

Check Microchip datasheets for pin-compatible alternatives within the PAC19xx series. Verify functional equivalence regarding channel count and accumulator support before substituting.