str-l6400 Sanken Electric Co., Ltd., str-l6400 Datasheet
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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
V
DSS
MOSFET
MIN (V)
650
850
STR-L6400 Series
in Full Load Range
MAX ( )
R
DS(ON)
3.4
6.5
P
100V / 220V
OUT
22W / 30W
15W / 25W
(Note 1,2)
IN
< 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. ...