PAC1942T-1E/4MX

Current Regulation/Management Overview

The PAC1942T-1E/4MX is a dual-channel power monitor manufactured by Microchip Technology. It supports high-side sensing and includes an accumulator for energy measurement. The device operates on a supply voltage ranging from 2.7 V to 5.5 V, with a maximum operating current of 395 uA. It provides measurement accuracy of 1% and functions within a temperature range of -40°C to +125°C. The component is housed in a VQFN-16 surface-mount package.

Current Regulation/Management Feature Summary

• Dual-channel power monitoring with integrated accumulator functionality
• High-side current sensing capability
• 1% measurement accuracy for precise data acquisition

Current Regulation/Management Applications

• Battery management systems requiring energy accumulation
• Industrial equipment power monitoring
• Automotive electronics power tracking

Current Regulation/Management Procurement Notes

Verify the specific suffix '4MX' against official Microchip documentation to confirm the exact tape-and-reel packaging configuration and marking details. Ensure compatibility with the target PCB footprint for the VQFN-16 package. Confirm that the high-side sensing requirement aligns with the circuit topology before procurement.

Current Regulation/Management Selection Notes

Select this component when dual-channel high-side monitoring with energy accumulation is required. The 1% accuracy suits applications needing reliable power data without external calibration. Consider the VQFN-16 package size for space-constrained designs. Verify that the 2.7V to 5.5V supply range matches the system voltage rails.

Current Regulation/Management Part Context

This part belongs to the PAC194x family of multi-channel power monitors. These devices are designed for accurate current and voltage measurements in power management applications. The PAC1942 variant specifically offers two channels, distinguishing it from single or quad-channel counterparts in the same series.

Current Regulation/Management Replacement Considerations

Check Microchip's official obsolescence notices for potential substitutes. Cross-reference pinouts and electrical specifications with other PAC194x models if available.