str-l6400 Sanken Electric Co., Ltd., str-l6400 Datasheet

str-l6400

Manufacturer Part Number

str-l6400

Description

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

Manufacturer

Sanken Electric Co., Ltd.

Datasheet

1.STR-L6400.pdf (2 pages)

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The STR-L6400 series products are power ICs for quasi-resonant switching type power

supplies, incorporating a power MOSFET and a controller IC. The product achieves high

efficiency and low noise power supply systems across the full load range, by the low standby

power, the quasi-resonant operation, the bottom-skip quasi-resonant operation, and the

burst-oscillation. The product is recommended for the systems requiring low-height and enough

clearance and creepage isolation between high and low voltage terminals.

The STR-Y6400 series products are the different package (TO-220F) versions.

General Descriptions

Features

Applications

Switching Power Supplies for

Product Lineup

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

Communication Devices, Others

Note 1: The maximum output power is derived from thermal specifications. The actual output power may be available

Note 2: The condition of the maximum output power is “without heat sink”.

Power IC for Quasi-Resonant Type Switching Power Supply

Multi-Mode Control

The operation mode switching with four steps according to load conditions achieves the optimal high efficiency and

low noise power supply systems across the full load range.

Current-Mode Control

Bottom-Skip Function with Delay Time Setting, enabling stable switching

Built-in Startup Circuit, enabling low power consumption

Auto-Standby Function with Burst-Oscillation, enabling low standby power(Input power P

Soft-ON Function, preventing the audible noise from transformer, during the standby operation (burst-oscillation)

and the dynamic load change.

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 between high and low voltage terminals: 6.5mm (3 pins removed)

Soft-Start Function

Step-Drive Function, reducing switching noise

Leading Edge Blanking Function

External ON/OFF Function

Built-in Avalanche Energy Guaranteed High-Voltage Power MOSFET

Various Protections

・In Standby: Auto Standby (Auto Burst-Oscillation)

・Under Low to Middle Load Conditions: 1 or 2 Bottom-Skip Quasi-Resonant Operation (Bottom-Skip QR)

・Under Middle to Rating (or Heavy) Load Conditions: Quasi-Resonant Operation (QR)

Overcurrent Protection (OCP)-------- Pulse-by-Pulse with AC Input Compensation Function

Overload Protection (OLP) ----------- Latch Shutdown or Auto-Restart Option by changing external components

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

with High Efficiency, Low Noise and Low Standby Power

STR-L6452

STR-L6472

Product No

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

around 120 –140% of the above values, respectively, but may be limited by ON duty setting on transformer

design or lower output voltage.

between High and Low Voltage Terminals

DSS

MOSFET

MIN (V)

650

850

STR-L6400 Series

in Full Load Range

MAX ( )

DS(ON)

3.4

6.5

100V / 220V

OUT

22W / 30W

15W / 25W

(Note 1,2)

< 100mW at no load)

SIP-10

Related parts for str-l6400

str-l6400 Summary of contents

Page 1

... General Descriptions The STR-L6400 series products are power ICs for quasi-resonant switching type power supplies, incorporating a power MOSFET and a controller IC. The product achieves high efficiency and low noise power supply systems across the full load range, by the low standby power, the quasi-resonant operation, the bottom-skip quasi-resonant operation, and the burst-oscillation ...

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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