HV7800 Supertex, Inc., HV7800 Datasheet
HV7800
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HV7800 Summary of contents
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... High Side Current Monitor 8V to 450V, Voltage Gain of 1 General Description The HV7800 high side current monitor IC transfers a high- side 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 “ ...
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... W = Code for Week Sealed = “Green” Packaging 5-Lead SOT-23 Units Conditions V * --- µ 450V kΩ - --- - V = 0mV SENSE - V = 100mV SENSE 200mV SENSE - V = 500mV SENSE - V step 5mV to 500mV SENSE µ step 0mV to 500mV SENSE µ step 500mV to 0mV SENSE HV7800 θ C/W = 0mV SENSE ...
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... 3. 3.0V IN 1000 2000 3000 4000 V SENSE Minimum 500mV SEN SE CURVE REPRESENTS LEVEL WHICH CAUSES A 0.1% DROP IN V OUT -40 - 100 120 140 Temperature T = 25°C AMB V 1000 HV7800 = 25°C AMB mV 5000 °C ...
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... Frequency Step Response (from neg 10mV) DIV 500mV V SEN SE 200mV D IV − 10mV V OUT 200mV DIV Time HV7800 400V IN 10V IN °C 100 120 140 T = 25°C AMB 500mV SENSE µ ...
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... B HV7800 GND Application Information General The HV7800 high side current monitor IC features accurate current sensing, small size, low component count, low power consumption, exceptional input voltage range, ease of use and low cost. The part typically performs the measurement of line or load current for overcurrent protection, metering or current regulation ...
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... LOAD input. Under worst case bias current (1nA), a 100kΩ protection resistor could cause an offset of 100µV or 0.2% full scale. Note that the bias current is nominally zero as the LOAD is a high impedance CMOS input. and at 600mV for a 6 HV7800 is 450V, whether positive or negative. SENSE . SENSE SENSE . ...
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... MAX 1.45 0.15 JEDEC Registration M0-178, Variation AA, Issue C, Feb. 2000. Drawings not to scale. (The package drawing(s) in this data sheet may not refl ect the most current specifi cations. For the latest package outline information go to http://www.supertex.com/packaging.html.) Doc.# DSFP-HV7800 NR061107 ...