HV7801

Supertex inc. HV7801 High Side Current Monitor 8.0 to 450V Voltage Gain of 5 Features ►►Supply voltage 8V to 450V ►►Voltage output device ►►Typical gain 5.0±1% ►►Max VSENSE 500mV ►►Fast rise and fall time, 700ns to 2.0µs ►►Maximum quiescent current 50µA Applications ►► SMPS current monitor ►► Battery current monitor ►► Motor control General Description The HV7801 high side current monitor IC transfers a highside current measurement voltage to its ground referenced output with a voltage gain of five. 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 well due to the wide input voltage range and the low quiescent current. Typical Application Circuit 8V to 450V Input VSENSE ISENSE RSENSE RP (optional) VOUT = 5 VSENSE IN LOAD HV7801 GND OUT VOUT V R Doc.# DSFP-HV7801 A062813 Supertex inc. www.supertex.com Ordering Information Part Number Package Option Packing HV7801K1-G 5-Lead SOT-23 2500/Reel -G denotes a lead (Pb)-free / RoHS compliant package Pin Configuration OUT 5 GND 4 HV7801 Absolute Maximum Ratings Parameter Value VIN, VLOAD VOUT VSENSE ILOAD Operating ambient temperature -0.5V to +460V -0.5V to +10V -0.5V...