DEC 2009
SPHP0365A/SPHN0365A
VER : Preliminary
( SEMIHOW POWER SWITCH )
FEATURES
APPLICATION
Variable frequency operation
Low Start-up Current(Typ.100uA )
Pulse by Pulse Current Limiting
Over Current Protection
SMPS for STB, SVR, DVD & DVCD
SMPS for Printer, Facsimile & Scanner
Adaptor
Over Voltage Protection (Min. 20)
Internal Thermal Shutdown Function
Under Voltage Lockout
SPHN0365A
SPHP0365A
Internal High Voltage Sense FET
Auto-Restart Mode
Advanced Burst-Mode Operation
DESCRIPTION
The SemiHow Power Switch product family is specially designed for an off-line SMPS with minimal external components.
The SemiHow Power Switch consists of a high voltage power SenseFET and a current mode PWM IC.
It has a basic platform well suited for the cost effective design in either a flyback converter
INTERNAL BLOCK DIAGRAM
◎ SEMIHOW REV.PLIMILARY”DEC 2009
SEMIHOW [ SEMIHOW CO.,LTD. ]
