STR3A463HDL |Sanken Electric

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STR3A463HDL

Data sheetdownload (PDF:767.18KB)
Application Note

Description

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.

Application

● AC/DC adapter
● White goods
● Other SMPS

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)

Remarks

STR3A400HDL Series

VDSS=700V
fOSC=100kHz

Products Ron Pout*
STR3A462HDL 3.2 Ω 30 W
STR3A463HDL 2.2 Ω 34 W
*Open frame, 85VAC to 265VAC

Package

Package Name:DIP8

Package Diagram

Design Support

Transformer Design Support
Sanken will assist you in creating a power supply trans design using this product. Please fill out the form with your power supply specifications.
Click Here

Specifications

Control MethodPWM
SeriesSTR3A400HDL
Output Power34 W
RON(max.)2.2Ω
VDSS(min.)700V
VCC Breakdown Voltage(max.)32V
Oscillating Frequency(typ.)100 kHz

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Representative Circuit

Internal Block Diagram

Pin-out Diagrams

Data sheetdownload (PDF:767.18KB)
Application Note
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