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NCP1027
High-Voltage Switcher for Medium Power Offline SMPS Featuring Low Standby Power
The NCP1027 offers a new solution targeting output power levels from a few watts up to 15 W 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.
NCP1027 Datasheet
