Holtek Semiconductor HT7A6322
The HT7A6322 is highly functionally integrated low power primary switcher device which combines an integrated PWM controller with current mode control and a high voltage power MOSFET on the same silicon chip.FEATURES
● Fixed 60kHz switching frequency● 9V to 38V wide range VCC voltage
● Wide AC input range from 85VAC to 265VAC
● PWM with current mode control
● Auxiliary Under Voltage Lock Out with hysteresis
● High voltage start-up current source
● Excellent standby low power consumption
● Over-temperature, Over-current and Over-voltage protection with auto-restart
● Integrated 730V MOSFET
● Burst mode under low load conditions
APPLICATIONS
● Off line power supply for battery charger adapters● Standby power supply for TV or monitors
● Auxiliary supply for motor control
● Air conditioner power supply
● Electromagnetic oven power supply
GENERAL DESCRIPTION
Typical Power Capability Type European (195~265VAC) US (85~265VAC) 8SOP 12W 7W 8DIP 20W 12W Rev. 1.30 3 August 30, 2024 HT7A6322 Low Power Primary Switcher for Off Line SMPS Typical Performance Characteristics Application Circuit Isolation Flyback Topology Snubber Circuit VAC VOUT+ VOUT- SW VCC HT7A6322 VSS FB PC817 TL 431 Block Diagram V...