HV9606DB1

HV9606DB1 Current-Mode PWM Multiple Output Flyback Converter Introduction The Supertex HV9606DB1 evaluation board demonstrates the features of HV9606 IC by presenting a DC/DC converter employing flyback technique to achieve multiple outputs: 3.3V non-isolated output with ± 1% accuracy. The output power is 350mW. 5V isolated output with ± 5% accuracy. The output power is 150mW. 40V nominal isolated output. The output power is 500mW. The HV9606 current-mode PWM controller features a built-in start-up regulator that can be used to operate the IC from inputs of 15V to 250V. Other features include built-in soft start, programmable input under voltage lockout and hysteresis, and standby current of 6µA (below UVLO). Specifications Total Output Power Efficiency Input Voltage Range Input Voltage Lockout Switching Frequency 3.3V Output 5V Output 40V Isolated Output Remote On/Off Remote Power Good Indicator 1 Watt ≥70 20V to 100V Start when Vin ≥ 21V 25kHz 3.3V ± 1% 5.0V ± 5% 40.0V (nominal) Yes Yes Vin = 48V Stop when Vin ≤ 19V IOutmax:= 106mA IOutmax:= 30mA IOutmax:= 12.5mA 350mW Output Power 150mW Output Power 500mW Output Power all outputs at 50% Load Board Layout and Connections PWRGD Measurement TP's Vout=3.3V RLOAD Vout=5.0V RLOAD ON/OFF Vout=40V RLOAD U1 = HV9606 TX1 = EPCOS Transformer + VIN = 20V to 100 V 1 09/05/2002 Supertex, Inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 TEL: (408) 744-0100 FAX: (408) 222-4895 www.supertex.com HV9606DB1 Instructions Vin , GN...