Datasheet Analog Devices LT8302HS8E#PBF — Datenblatt

LT8302/LT8302-3
42VIN Micropower No-Opto
Isolated Flyback Converter
with 65V/3.6A Switch
FEATURES DESCRIPTION 3V to 42V Input Voltage Range
n 3.6A, 65V Internal DMOS Power Switch
n Low Quiescent Current:
n 106µA in Sleep Mode
n 380µA in Active Mode
n Quasi-Resonant Boundary Mode Operation at
Heavy Load
n Low Ripple Burst Mode® Operation at Light Load
n Minimum Load < 0.5% (Typ) of Full Output
n No Transformer Third Winding or Opto-Isolator
Required for Output Voltage Regulatio Accurate EN/UVLO Threshold and Hysteresis
n Internal Compensation and Soft-Start
n Temperature Compensation for Output Diode
n Output Short-Circuit Protectio Thermally Enhanced 8-Lead SO Package
n AEC-Q100 Qualified for Automotive Applications The LT®8302/LT8302-3 is a monolithic micropower isolated flyback converter. By sampling the isolated output
voltage directly from the primary-side flyback waveform,
the part requires no third winding or opto-isolator for
regulation. The output voltage is programmed with two
external resistors and a third optional temperature compensation resistor. Boundary mode operation provides a …

LT8302
42VIN Micropower No-Opto
Isolated Flyback Converter
with 65V/3.6A Switch
Features Description 2.8V to 42V Input Voltage Range
n 3.6A, 65V Internal DMOS Power Switch
n Low Quiescent Current: 106ВµA in Sleep Mode 380ВµA in Active Mode
n Quasi-Resonant Boundary Mode Operation at
Heavy Load
n Low Ripple Burst ModeВ® Operation at Light Load
n Minimum Load < 0.5% (Typ) of Full Output
n No Transformer Third Winding or Opto-Isolator
Required for Output Voltage Regulatio Accurate EN/UVLO Threshold and Hysteresis
n Internal Compensation and Soft-Start
n Temperature Compensation for Output Diode
n Output Short-Circuit Protectio Thermally Enhanced 8-Lead SO Package The LTВ®8302 is a monolithic micropower isolated flyback
converter. By sampling the isolated output voltage directly
from the primary-side flyback waveform, the part requires
no third winding or opto-isolator for regulation. The output
voltage is programmed with two external resistors and a
third optional temperature compensation resistor. Boundary mode operation provides a small magnetic solution with
excellent load regulation. Low ripple Burst Mode operation
maintains high efficiency at light load while minimizing the …