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HV7802MG-G

MCHPHV7802MG-G

Microchip Technology
Current & Power Monitors & Regulators HI-Voltage Driver
66,125 in stock
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Overview

The HV7802MG-G is a high-side current monitor IC designed for high-voltage applications up to 450V. It translates a high-side current sense voltage to a ground-referenced output, offering engineers a simple way to monitor power rails in systems with significant voltage potential.

Why Choose This Part

The device features an exceptionally wide input voltage range of 8V to 450V, eliminating the need for complex isolated sensing circuitry in many high-voltage designs. Its low quiescent current of 50uA and fast response times make it suitable for power-sensitive and high-speed protection applications.

Applications

SMPS Current Monitoring
High-side current sensing for switch-mode power supplies to provide over-current protection or feedback control.
Battery Management Systems
Monitoring charge and discharge currents in high-voltage battery stacks for electric vehicles or stationary storage.
Industrial Motor Control
Real-time current sensing for phase monitoring or torque control in AC or high-voltage DC motor drives.

Getting Started

To evaluate this part, design a PCB with a low-ohm shunt resistor sized for your maximum target current and ensure proper creepage distances for the 450V operating limit. Connect the output to a high-impedance ADC input or an analog comparator for fault detection.

Also Consider

INA226 TITexas Instruments - If high precision digital I2C reporting is required for lower voltage rails up to 36V.
MAX4080 Maxim Integrated - Provides a high-side current sense solution for applications limited to 76V that require a simple analog output.