KA3842AC/KA3842AE SMPS Controller
March 2006
KA3842AC/KA3842AE SMPS Controller
Features
Low start current 0.
2mA (Typ.
) Operating range up to 500kHz Cycle by cycle current limiting Under
Voltage Lock Out (UVLO) with hysteresis Short shutdown delay time: Typ.
100ns High current totem-pole output Output swing limiting: 22V
Description
The KA3842AC/KA3842AE are fixed PWM controllers for Off Line and DC to DC converter applications.
The internal circuits include UVLO, low start up current, temperature compensated reference, high gain error amplifier, current sensing comparator, and high current totem pole output for driving a POWER
MOSFET.
Also KA3842AC/KA3842AE provides low start...