EmbeddedRelated.com
The 2026 Embedded Online Conference
PAC1942T-2E/J6CX

MCHPPAC1942T-2E/J6CX

Microchip Technology
Current/Voltage Monitor Regulator Low-Side 16-WLCSP (2.23x2.17)
Active4,944 in stock

Overview

The Microchip PAC1942T-2E/J6CX is a dual-channel power monitoring IC designed for precise current and voltage measurement. It offers real-time auto-calibration and on-chip accumulation of power results, making it suitable for applications requiring accurate energy tracking. Packaged in a compact 16-WLCSP, it supports low-side sensing and a wide operating temperature range.

Why Choose This Part

This device offers high accuracy of 0.5% for current and voltage measurements, crucial for reliable power management. Its integrated coulomb counting and power accumulation features simplify energy tracking, reducing host microcontroller overhead. The wide input voltage range from 2.7V to 5.5V and low sleep current of 5 uA make it suitable for a broad array of low-power applications.

Applications

Battery-Powered Devices
Monitors current consumption and voltage levels in battery-powered IoT devices and wearables to optimize battery life and provide accurate state-of-charge information.
Server and Data Center Power Monitoring
Provides real-time power and current monitoring for individual server components or power supply rails to enable efficient power management and fault detection.
USB Power Delivery
Tracks power usage and voltage in USB Power Delivery applications to ensure compliance and monitor device charging behavior.
Embedded System Power Management
Integrates into embedded systems to precisely measure power consumption of different modules, aiding in power optimization and debugging.
Smart Home Devices
Enables energy monitoring in smart home appliances and sensors, providing data for energy conservation and usage analytics.

Key Specifications

Accuracy +/-1%
Function Current/Voltage Monitor
Mounting Type Surface Mount
Package / Case 16-WFBGA, WLCSP
Sensing Method Low-Side
Voltage - Input 2.7V ~ 5.5V
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 16-WLCSP (2.23x2.17)

Getting Started

To begin development with the PAC1942T-2E/J6CX, utilize Microchip's associated evaluation boards and software tools. The I2C/SMBus interface allows for straightforward integration with most microcontrollers. Example code and application notes are available on the Microchip website to assist with configuration and data acquisition.

Also Consider

INA219 TITexas Instruments - This is a popular current/voltage monitor with a similar I2C interface, offering a good balance of performance and ease of use.
The 2026 Embedded Online Conference