توضیحات

CURRENT MODE PWM+PFM CONTROLLER WITH BUILT-IN HIGH
VOLTAGE MOSFET

SD6832 is current mode PWM+PFM controller with built-in highvoltage MOSFET used for SMPS。
It features low standby power and low start current. In standby
mode, the circuit enters burst mode to reduce the standby
power dissipation.
The switch frequency is 25~67KHz decided by the load with
jitter frequency for low EMI.
Built-in peak current compensation circuit makes the limit peak
current stable even with different input AC voltage. Maximum
peak current compensation during power-on reduces pressure
on transformer to avoid saturation, the peak current
compensation will decrease for balance after power-on. Limit
output current can be adjusted through the resistor connected to
CS.
It integrates various protections such as undervoltage lockout,
overvoltage protection, overload protection, leading edge
blanking, primary winding overcurrent protection and thermal
shutdown. The circuit will restart until normal if protection
occurs.