str-l400 Sanken Electric Co., Ltd., str-l400 Datasheet

str-l400

Manufacturer Part Number

str-l400

Description

Power Ic For Quasi-resonant Type Switching Power Supply With High Efficiency, Low Noise Low-height, And Enough Creepage Isolation >6mm Between High And Low Voltage Terminals

Manufacturer

Sanken Electric Co., Ltd.

Datasheet

1.STR-L400.pdf (2 pages)

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The STR-L400 series products are power ICs for quasi-resonant switching type power

supplies, incorporating a power MOSFET and a controller IC in the SIP-10 package.

The product achieves high efficiency and low noise power supply systems by the

quasi-resonant operation. The product is recommended for the systems requiring low-height

and enough clearance and creepage isolation between high and low voltage terminals.

General Descriptions

Features

Applications

Switching Power Supplies for

Product Lineup

Standby Power Supplies, Home Appliances (White Goods), Digital Consumer Equipment, OA Equipment,

Industry Machines, Communication Devices, Others

Power IC for Quasi-Resonant Type Switching Power Supply

Quasi-Resonant Operation

Current-Mode Control

Built-in Oscillator for Low Frequency Operation

The operation with low frequency of 50µs OFF time (around 22 kHz), until the quasi-resonant signal becomes

valid, reduces the stress on components at startup and load-shorted.

SIP-10 Package (Sanken designation: STA-10L), recommended for auxiliary power supplies of White Goods.

Straight lead pitch: 2.54mm, Height over PCB: < 12mm

Clearance and Creepage Isolation on PCB between high and low voltage terminals: 6.5mm (4 pins removed)

Input Compensation at Overcurrent

The function reduces the distortion of overcurrent operation point to AC input voltage change by adding three

components.

Built-in Avalanche Energy Guaranteed High-Voltage Power MOSFET

Various Protections

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

Overload Protection (OLP) ------------------------------------- Latch Shutdown

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

Low-Height, and Enough Creepage Isolation (>6mm)

Product No

STR-L451

STR-L472

between High and Low Voltage Terminals

with High Efficiency, Low Noise

DSS

MOSFET

STR-L400 Series

650

900

MIN(V)

DS(ON)

( )

3.95

7.7

MAX

SIP-10

Related parts for str-l400

str-l400 Summary of contents

Page 1

... High and Low Voltage Terminals ■ ■ ■ ■ General Descriptions The STR-L400 series products are power ICs for quasi-resonant switching type power supplies, incorporating a power MOSFET and a controller IC in the SIP-10 package. The product achieves high efficiency and low noise power supply systems by the quasi-resonant operation ...

Page 2

... Make sure that this is the latest version of the document before use. The operation and circuit examples in this document are provided for reference purposes only. Sanken assumes no liability for violation of industrial property, intellectual property, or other rights of Sanken or third parties, that stem from these examples. ...

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