HV7800

Supertex inc. HV7800 High Side Current Monitor 8.0 to 450V Voltage Gain of 1 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 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. This monitor IC features a very wide input voltage range, high accuracy of transfer ratio, small size, low component count, low power consumption, ease of use, and low cost. Offline, battery and portable applications can be served equally we...