onsemi NCP1027P065G

NCP1027 Series 10 V 71.5 kHz Surface Mount High-Voltage Switcher - PDIP-8

AC to DC Switching Converter Flyback 58.5kHz to 71.5kHz Tube 7-Pin PDIP

Switching Regulator, Current-mode, 0.8A, 71.5kHz Switching Freq-Max, PDIP8

NCP1027 ACTIVE NOT REC (Last Updated: 2days ago) Over Power Over Voltage Short Circuit Tube dc ac converter 8V 10.16mm 25W 65kHz

The NCP1027 offers a new solution targeting output power levels from a few watts up to 15W in a universal mains flyback application. Our proprietary high-voltage technology lets us include a power MOSFET together with a startup current source all directly connected to the bulk capacitor. To prevent lethal runaway in low input voltage conditions an adjustable brown-out circuitry blocks the activity until sufficient input level is reached. Current-mode operation together with an adjustable ramp compensation offers superior performance in universal mains applications. Protection wise a timer detects an overload or a short-circuit and stops all operations ensuring a safe auto-recovery low duty cycle burst operation. An integrated auto-recovery Overvoltage Protection permanently monitors the VCC level and temporarily shuts down the driving pulses in case of an unexpected feedback loop runaway. Finally a great RDS(on) figure makes the circuit an excellent choice for standby/auxiliary offline power supplies or applications requiring higher output power levels.