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NCP1382


Part Number NCP1382
Manufacturer ON Semiconductor
Title Low Standby High Performance PWM Controller
Description Pin# Symbol 1 GTS_ADJ GTS Level Adjustment 2 BO Brown--out 3 DMG Detects the Zero Voltage Crossing Point 4 Timer Fault Timer 5 Skip/OVP ...
Features several efficient protection options like a) a short--circuit / overload detection independent of the auxiliary voltage b) an auto--recovery brown--out detection and c) an input to externally latch the circuit in case of Overvoltage Protection or Over Temperature Protection. Features
 Current--Mode...

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NCP1380 : NCP1380 Quasi-Resonant Current-Mode Controller for High-Power Universal Off-Line Supplies The NCP1380 hosts a high−performance circuitry aimed to powering quasi−resonant converters. Capitalizing on a proprietary valley−lockout system, the controller shifts gears and reduces the switching frequency as the power loading becomes lighter. This results in a stable operation despite switching events always occurring in the drain−source valley. This system works down to the 4th valley and toggles to a variable frequency mode beyond, ensuring an excellent standby power performance. To improve the safety in overload situations, the controller includes an Over Power Protection (OPP) circuit which cla.

NCP1381 : Pin# Symbol 1 GTS_ADJ GTS Level Adjustment 2 BO Brown--out 3 DMG Detects the Zero Voltage Crossing Point 4 Timer Fault Timer 5 Skip/OVP Adjust the Skip Level 6 FB Feedback Signal 7 CS Current Sense Pin 8 GND 9 DRV The IC Ground The Driver Output 10 VCC VCC Input 11 GTS Directly Powers the PFC Frontend Stage 12 Reference 13 NC 14 NC Reference Voltage --- Description An internal comparator senses the signal applied to this pin (typically a portion of FB signal) to detect the standby condition for GTS. By connecting this pin to a resistive divider, the controller ensures operation at a safe mains level. This pin detects the core reset event but also permanently senses the.




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