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FSCQ1265RT

ON Semiconductor
Part Number FSCQ1265RT
Manufacturer ON Semiconductor
Description Green Mode Fairchild Power Switch
Published Dec 22, 2021
Detailed Description Green Mode Fairchild Power Switch (FPSt) FSCQ Series FSCQ0765RT / FSCQ0965RT / FSCQ1265RT / FSCQ1565RT Description A Qu...
Datasheet PDF File FSCQ1265RT PDF File

FSCQ1265RT
FSCQ1265RT

Overview
Green Mode Fairchild Power Switch (FPSt) FSCQ Series FSCQ0765RT / FSCQ0965RT / FSCQ1265RT / FSCQ1565RT Description A Quasi−Resonant Converter (QRC) typically shows lower EMI and higher power conversion efficiency compared to a conventional hard−switched converter with a fixed switching frequency.
Therefore, a QRC is well suited for noise−sensitive applications, such as color TV and audio.
Each product in the FSCQ series contains an integrated Pulse Width Modulation (PWM) controller and a SENSEFET®.
This series is specifically designed for quasi−resonant off−line Switch Mode Power Supplies (SMPS) with minimal external components.
The PWM controller includes an integrated fixed frequency oscillator, under−voltage lockout, leading−edge blanking (LEB), optimized gate driver, internal soft−start, temperature−compensated precise current sources for loop compensation, and self−protection circuitry.
Compared with a discrete MOSFET and PWM controller solution, the FSCQ series can reduce total cost, component count, size, and weight; while increasing efficiency, productivity, and system reliability.
These devices provide a basic platform for cost−effective designs of quasi−resonant switching flyback converters.
Features • Optimized for Quasi−Resonant Converter (QRC) • Advanced Burst−Mode Operation for under 1 W Standby Power Consumption • Pulse−by−Pulse Current Limit • Overload Protection (OLP) – Auto Restart • Over−Voltage Protection (OVP) – Auto Restart • Abnormal Over−Current Protection (AOCP) – Latch • Internal Thermal Shutdown (TSD) – Latch • Under−Voltage Lockout (UVLO) with Hysteresis • Low Startup Current (Typical: 25 mA) • Internal High Voltage SENSEFET • Built−in Soft−Start (20 ms) • Extended Quasi−Resonant Switching • This is a Pb−Free and Halid−Free Device Applications • CTV • Audio Amplifier Related Resources • https://www.
onsemi.
com/pub/Collateral/AN−4146.
pdf • https://www.
onsemi.
com/pub/Collateral/AN−4140.
pdf © Semiconductor Components Industries, LLC, 2006 ...


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