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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.
? Features
Quasi-Resonant Operation
Current-Mode Control
Built-in Oscillator for Low Frequency Operation
The operation with low frequency of 50?s 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
? Applications
Switching Power Supplies for
Standby Power Supplies, Home Appliances (White Goods), Digital Consumer Equipment, OA Equipment,
Industry Machines, Communication Devices, Others
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All products are well packed to assure safe delivery.
All products are eligible for free delivery pan India.
Free exchange on all products till 10 days from the date of delivery