SD4842P Datasheet PDF – Current Mode PWM Controller

Part Number: SD4842P

Function : Current Mode PWM Controller With Built-in High Voltage MOSFET

Package: DIP 8 Pin Type

Manufacturer: Silan Microelectronics


SD4842P datasheet


The SD4842P is a current mode PWM controller with low standby power and low start current for power switch. In standby mode, the circuit enters burst mode to reduce the standby power dissipation.

The switch frequency is 67KHz with ±2.5 KHz jitter frequency for low EMI. The stress on transformer during power on is reduced by the builtin 15ms soft start circuit to avoid the saturation of transformer.


SD4842P pinout


1. Lower start-up current (Typ.6μA)

2. Frequency jitter for low EMI

3. Overcurrent protection

4. Overvoltage protection

5. Undervoltage lockout

6. Built-in temperature protection

7. Built-in high voltage MOSFET

8. Built-in soft start

9. Burst mode operation

10. Cycle by cycle current limit


1. Switch power

Other data sheets are available within the file: SD4841P67K65, SD4840P, SD4842, SD4843P, SD4844P

SD4842P Datasheet PDF

SD4842P pdf

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