Supertex inc. HV7802 High Side Current Monitor 8V to 450V Configurable Output Features General Description Supply voltage 8V to 450V The HV7802 high side current monitor IC contains a transconductance amplifier which translates a high side Configurable as a current or voltage output device current measurement voltage into an output current with Maximum sense amplifier offset of 15mV resistor programmable transconductance gain. An optional Max V of 500mV SENSE second resistor transforms this output current into an output Fast rise and fall time, from 700ns to 2.0s voltage with an overall voltage gain set by the ratio of the two Maximum quiescent current of 50A resistors. Applications The measurement voltage typically originates at a current SMPS current monitor sense resistor, which is located in a high side circuit, for Battery current monitor example a circuit not directly associated with ground. Motor control This monitor IC features a very wide input voltage range, configurable gain, 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 V I SENSE SENSE 8V to 450V Input R SENSE R R (optional) A P IN RA LOAD I = V /R OUT SENSE A V = R I OUT B OUT R HV7802 G = R /R V B A GND OUT V I OUT OUT R V B Doc. DSFP-HV7802 Supertex inc. A062813 www.supertex.comHV7802 Pin Configuration Ordering Information GND NC OUT NC Part Number Package Option Packing 8 7 6 5 HV7802MG-G 8-Lead MSOP 2500/Reel -G denotes a lead (Pb)-free / RoHS compliant package Absolute Maximum Ratings 1 2 3 4 IN RA LOAD NC Parameter Value 8-Lead MSOP V , V -0.5V to +460V (top view) IN LOAD V -0.5V to +10V OUT Product Marking V -0.5V to +5.0V SENSE Top Marking I 10mA LOAD 7802 Operating ambient temperature -40C to +85C LLLL L = Lot Number YY = Year Sealed Operating junction temperature -40C to +125C Bottom Marking WW = Week Sealed Storage temperature -65C to +150C = Green Packaging YYWW Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Continuous operation of the device at the absolute rating level Package may or may not include the following marks: Si or may affect device reliability. All voltages are referenced to device ground. 8-Lead MSOP Notes: 1. Referenced to GND 2. V = V - V SENSE IN LOAD Typical Thermal Resistance Package ja O 8-Lead MSOP 216 C/W Note: Thermal testboard per JEDEC JESD51-7 Electrical Characteristics (T = 25C unless otherwise specified, V = V - V , V = 8V to 450V) A SENSE IN LOAD IN Sym Parameter Min Typ Max Units Conditions Supply V Supply voltage 8.0 - 450 V * --- IN I Quiescent supply current - - 50 A - V = 8V to 450V, V = 0mV Q IN SENSE Input and Output I Ouput current - - 200 A - --- OUT 0 - 15 V = 0mV SENSE Output voltage, 79 - 121 V = 100mV SENSE V R = R = 5.000k mV - OUT A B 177 - 223 V = 200mV SENSE 470 - 530 V = 500mV SENSE Dynamic Characteristics - 0.7 - V step 5.0mV to 500mV SENSE t Output rise time, 10% to 90% s - RISE - - 2.0 V step 0mV to 500mV SENSE t Output fall time, 90% to 10% - 0.7 2.0 s - V step 500mV to 0mV FALL SENSE * Values apply over the full temperature range. Doc. DSFP-HV7802 Supertex inc. A062813 2 www.supertex.com