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STRL472 Datasheet

Power IC


STRL472 Datasheet Preview


STR-L400 Series
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
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. The product is recommended for the systems requiring low-height
and enough clearance and creepage isolation between high and low voltage terminals.
SIP-10
Features
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
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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
Applications
Switching Power Supplies for
Standby Power Supplies, Home Appliances (White Goods), Digital Consumer Equipment, OA Equipment,
Industry Machines, Communication Devices, Others
Product Lineup
Product No
STR-L451
STR-L472
MOSFET
VDSS MIN(V)
650
900
RDS(ON) MAX
()
3.95
7.7
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Page 1

Typical Application Circuit
VAC
STR-L400
1234
D
8
Vcc
Cont.
OCP
/FB
9
S GND GND
6 7 10
Package Information
SIP-10 Sanken designation : STA-10L
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VOUT
GND
Dimensions between roots
Dimensions between roots
Warning
The contents in this document are subject to changes, for improvement and other purposes, without notice.
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.
The user must take responsibility for considering and determining which objects the products in this document are used with.
Although Sanken will continue to improve the quality and reliability of its products,
semiconductor products, by their nature, have certain fault and failure rates. The user must take responsibility for designing and checking to secure the device and system so that a part failure may not lead
to human injury, fire, damages, or other losses.
The contents in this document must not be transcribed or copied without Sanken’s written consent.
SANKEN ELECTRIC CO.,LTD.
datasheet pdf - http://www.DataSheet4U.net/
Page 2
Part Number STRL472
Manufactur Sanken
Description Power IC
Total Page 2 Pages
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