General Description

The HV7800 high side current monitor IC transfers a highside current measurement voltage to its ground referenced output with an accurate voltage gain of one. The measurement voltage typically originates at a current sense resistor which is located in a “high side” circuit, such as the positive supply line.

Features

► Supply voltages from 8V to 450V

► Voltage output device

► Typical gain 1±1

► Max VSENSE 500mV

► Fast rise and fall time, 700ns to 2.0µs

► Maximum quiescent current 50µA

► 5-Lead SOT-23 Package

Applications

► SMPS current monitor

► Battery current monitor

► Motor controls

► Telecom