STR3A461HL - Sanken

STR3A461HL Off-Line PWM Controller

The STR3A46xHL/HDL series are power ICs for switching power supplies, incorporating a power MOSFET and a current mode PWM controller IC. To enhance efficiency in all load ranges, the IC automatically shifts its operation to the green mode or burst oscillation mode, depending on the load. The product achieves high cost-performance power supply systems with fe.

Features

● Bare Lead Frame: Pb-free (RoHS compliant)
● Low Thermal Resistance Package
● 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)
● Noise Reduction
● Current Mode Type PWM Control
● Soft Start Function
● Automatic Standby Function No Load Power Consumption < 15mW
● Operation Mode Normal Operation ----------------------------PWM Mode Light Load Operation----------------------- Green-Mode Standby -------------------------- Burst Oscillation Mode
● Random Switching Function
● Slope Compen.