STR3W426MXD Off-Line PWM Controllers

STR3W426MXD Off-Line PWM Controllers

The STR3W400MXD series is power IC for switching power supplies, incorporating a power MOSFET and a current mode PWM controller IC. The operating mode of the IC automatically changes to green-mode or burst oscillation mode according to load in order to improve the all load efficiency. The product ac.

Features

● Bare Lead Frame: Pb-free (RoHS Compliant)
● Current Mode Type PWM Control
● Improving circuit efficiency (Since the step drive control can keep VRM of secondary rectification diodes low, the circuit efficiency can be improved by low VF)
● Automatically changed operation mode in response to load conditions Fixed switching frequency mode, 65 kHz (typ.) Green mode, 30 kHz (typ.) to 65 kHz (typ.) Burst oscillation mode
● No Load Power Consumption, PIN < 30 mW
● Soft Start Function
● Random Switching Function
● Slope Compensation Function (Subharmonic Oscillation Prevention)
● Leading Edge Blanki.