Sanken STR3A451D
The STR3A400 series are power ICs for switching power supplies, incorporating a MOSFET and a current mode PWM controller IC. The low standby power is accomplished by the automatic switching between the PWM operation in normal operation and the burst-oscillation under light load conditions. The product achieves high cost-performance power supply systems with few external components.| Part No. | STR3A451D |
|---|---|
| Datasheet | STR3A451D Download |
| Manufacturer |  Sanken |
| Description | Off-Line PWM Controllers |
| Buy | Stock & Price |
DESCRIPTION
FEATURES
● 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)
● 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 Compensation Function
● Leading Edge Blanking Function
● Bias Assist Function
● Protections Two Types of Overcurrent Protection (OCP): Pulse-by-Pulse, built-in compensation circuit to minimize OCP point variation on AC input voltage Overload Protection (OLP): Auto-restart Overvoltage Protection (OVP): Latched shutdown or auto-restart Thermal Shutdown (TSD): Latched shutdown or auto-restart with hysteresis Typical Application VAC BR1 C1 C4...
