PREVIEW

STR3A463HDL

Package Image

Package:DIP8

The STR3A400HDL 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.

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)
    ● 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 Compensation Function
    ● Leading Edge Blanking Function
    ● Bias Assist Function
    ● Protections
       Overcurrent Protection (OCP)
       Overload Protection (OLP)
       Overvoltage Protection (OVP)
       Thermal Shutdown (TSD)

Application

    ● AC/DC adapter
    ● White goods
    ● Other SMPS

Specifications

Control Method PWM
Type Power IC
Output Current 34 W
RDS(ON) (max.) 2.2 Ω
VDSS (min.) 700.00 V
VCC (max.) 32.00 V
Oscillating Frequency(typ.) 100
OCP YES
OLP Auto Restart
OVP Auto Restart
Brown-in / out NO
TSD Latch
Power Consumption at No Load <15mW

Typical Application

Typical Application

Block Diagram

Block Diagram

Pin Configuration Definitions

Pin Configuration Definitions

Questions or Comments?

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