Transcription of LT8316 (Rev. A) - Analog Devices
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LT8316 (Rev. A) - Analog Devices
LT83161 Rev. BFor more information FeedbackFEATURESDESCRIPTION560 VIN Micropower No-Opto Isolated Flyback ControllerThe LT 8316 is a micropower, high voltage flyback con-troller. No opto-isolator is needed for regulation. The device samples the output voltage from the isolated fly-back waveform appearing across a third winding on the transformer. Quasi-resonant boundary mode operation improves load regulation, reduces transformer size, and maintains high 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 minimiz-ing standby power dissipation. The LT8316 operates from a wide range of input supply voltages and can deliver up to 100W of power. It is avail-able in a thermally enhanced 20-pin TSSOP package with additional pins removed for high-voltage nWide Input Voltage Range: 16V to 560V (600V max) nNo Opto-Isolator Required for Regulation nQuasi-Resonant Boundary Mode Operation nConstant-Current and Constant-Voltage Regulation nLow-Ripple Light Load Burst Mode Operation nLow Quiescent Current: 75 A nProgrammable Current Limit and Soft-Start nTSSOP Package with High-Voltage Spacing nAvailable in 20(15)-Lead Packag
The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. BIAS = 30V, ... INTVCC Regulation Voltage Drawing 20mA from INTVCC 9.5 10 10.5 V INTVCC LDO Dropout Voltage Drawing 20mA from INTVCC 1 V Gate Driver Rise Time CGATE = 3.3nF, 10% to 90% 30 ns
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