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STR-W6200D

Power IC for PWM Type Switching Power Supply with Low Noise and Low Standby Power

Sanken Electric co.,ltd. 

STR-W6200D Series

Power IC for PWM Type Switching Power Supply

with Low Noise and Low Standby Power

■ General Descriptions

The STR-W6200D series products are power ICs for switching power supplies,

incorporating a power MOSFET and a current-mode type 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 condition. The product achieves

high cost-performance power supply systems with few external components.

■ Features

Current-Mode Type PWM Control

TO-220F-6

PWM with Jittering Function

The function reduces the EMI noise and enables simplified (low-cost) EMI filters.

The jittering period is adjustable by an external capacitor.

Auto-Standby Function

The burst-oscillation enables the low standby power.

Input Power PIN < 100mW at no load

Built-in Startup Circuit, enabling low power consumption

Overcurrent Protection (OCP) with Built-in Input Compensation Circuit

The function has less AC input voltage dependency.

Overload Protection (OLP) with Built-in Delay Timer ( the delay time is adjustable by an external capacitor)

External Latch Protection (ELP)

The function enables the latch shutdown by external signal.

Bias-Assist Function, reducing operating VCC voltage drop

The function improves the startup operation and makes a low VCC capacitor applicable.

Leading Edge Blanking Function

Slope Compensation Function

Built-in Avalanche Energy Guaranteed High-Voltage Power MOSFET

Various Protections

Overcurrent Protection (OCP)---------------------------------- Pulse-by-Pulse

Overload Protection (OLP) ------------------------------------- Auto-Restart

Overvoltage Protection (OVP) --------------------------------- Latch Shutdown

Thermal Shutdown Protection (TSD) ------------------------- Latch Shutdown

■ Applications

Switching Power Supplies for

Home Appliances (White Goods), Digital Consumer Equipment, OA Equipment, Industry Machines,

Communication Devices, Others

■ Product Lineup

Product No.

STR-W6251D

STR-W6252D

STR-W6253D

fOSC

(kHz)

67

67

67

MOSFET

VDSS (MIN) (V)

650

650

650

RDS(ON)(MAX)

(Ω)

3.95

2.8

1.9

2010/08

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