The LT8316 is a micropower, high voltage flyback controller. No opto-isolator is needed for regulation. The device samples the output voltage from the isolated flyback waveform appearing across a third winding on the transformer. Quasi-resonant boundary mode operation improves load regulation, reduces transformer size, and maintains high efficiency. At start-up, the LT8316 charges its INTVCC capacitor via a high voltage current source. During normal operation, the current source turns off and the device draws its power from a third winding on the transformer minimizing standby power dissipation. The LT8316 operates from a wide range of input supply voltages and can deliver up to 100W of power. It is available in a thermally enhanced 20-pin TSSOP package with four pins removed for high-voltage spacing. APPLICATIONS * Isolated Telecom, Automotive, Industrial, Medical Power Supplies * Isolated Off-Line Housekeeping Power Supplies * Electric Vehicles and Battery Stacks * Multioutput Isolated Power Supplies for Inverter Gate Drives * Wide Input Voltage Range: 16V to 560V (600V max) * No Opto-Isolator Required for Regulation * Quasi-Resonant Boundary Mode Operation * Constant-Current and Constant-Voltage Regulation * Low-Ripple Light Load Burst Mode® Operation * Low Quiescent Current: 75μA https://elecena.pl/product/16953495/560v-micropower-no-opto-isolated-flyback-controller 2020-06-07 https://elecena.pl/product/16953495/560v-micropower-no-opto-isolated-flyback-controller 2025-01-21