www.fairchildsemi.com
KA5Q-SERIES
KA5Q0765RT/KA5Q12656RT/KA5Q1265RF/ KA5Q1565RF Fairchild Power Switch(FPS)
Features
•...
www.fairchildsemi.com
KA5Q-SERIES
KA5Q0765RT/KA5Q12656RT/KA5Q1265RF/ KA5Q1565RF Fairchild Power Switch(FPS)
Features
Quasi Resonant Converter Controller Internal Burst Mode Controller for Stand-by Mode Pulse by Pulse Current Limiting Over Current Latch Protection Over
Voltage Protection (Vsync: Min. 11V) Internal Thermal Shutdown Function Under
Voltage Lockout Internal High
Voltage Sense FET Auto-Restart Mode
Description
The Fairchild Power Switch(FPS) product family is specially designed for an off-line SMPS with minimal external components. The Fairchild Power Switch(FPS) consist of high
voltage power SenseFET and current mode PWM controller IC. PWM controller features integrated fixed oscillator, under
voltage lock out, leading edge blanking, optimized gate turn-on/ turn-off driver, thermal shut down protection, over
voltage protection, temperature compensated precision current sources for loop compensation and fault protection circuit. compared to discrete
MOSFET and controller or RCC switching converter solution, a Fairchild Power Switch(FPS) can reduce total component count, design size, and weight and at the same time increase & efficiency, productivity, and system reliability. It has a basic platform well suited for cost-effective design in quasi resonant converter as C-TV power supply.
TO-220F-5L TO-3PF-5L
Internal Block Diagram
11
1. Drain 2. GND 3. VCC 4. FB 5. Sync
VCC DRAIN
31
SYNC 5 FEEDBACK 4
Burst Mode 3.5V/1.25V
Normal Mode 4.6V/2.6V...