STRA6351 STR-A6351A A6351A DIP8 IC

series is a hybrid IC with a built-in power MOSFET and a controller IC, designed for fly-back
converter type SMPS(Switching Mode Power Supply) applications, packaged into DIP8, applicable for PRC
operation only for small power SMPS.
This IC realizes downsizing and standardizing of a power supply system that reduces external components
count and simplifies circuit designs.
(Note) PRC is abbreviation of “Pulse Ratio Control”(On-width control with fixed OFF-time).

・The built-in power MOSFET simplifies the surge absorption circuit since the MOSFET guarantees the
avalanche energy.
・No VDSS de-rating is required.
● Built-in constant voltage drive circuit
●Various kinds of protection functions
・ Pulse-by-pulse Overcurrent Protection(OCP)
・ Overvoltage Protection with latch mode (OVP)
・ Thermal Shutdown with latch mode (TSD)

Source terminal Ground terminal Input voltage terminal Overcurrent/Feedback Ground terminal Drain terminal Drain terminal Ground Power supply for Control circuit Overcurrent detection/Constant Voltage Control Signals input Ground Non-connection MOSFE.