MD22H Low Standby-Power Off-line PWM converters

1、General Description
The MD12H consists of a Pulse Width Modulator (PWM) controller and a power MOSFET, performance off-line converter with minimal external components. MD12H offers complete protection coverage with automatic self-recovery feature including Cycle-by-Cycle current limiting (OCP),overtemperature protection(OTP), under-voltageLockout protection(UVLO) ，VDDover-voltage protection(OVP), and soft-start. Burst mode operation and device very lowconsumption helps tomeet the standby energy saving regulations.Excellent EMI performance is achieved with frequency modulation. The device consists of a high voltage start-up circuit in order to reduce the system set-up time. The device provides an advanced platform well suited for low standby-power and cost-effective flyback converters.
2、Features
Integrated 800V avalanche-rugged power MOSFET
85V to 265V wide range AC voltage input
Semi enclosed steady output power 6W(DIP-8)@85~265VAC
Frequency modulation for low EMI
Burst-mode Operation
Built-in Soft Start
Internal HV Start-up Circuit
Excellent Protection :
Over Current Protection (OCP)
Over Temperature Protection (OTP)
VDD over-voltage protection (OVP)
3、Applications
Electromagnetic Oven power supplies
Small household application power supplies (Coffee machine Electric kettle, etc.)