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1200AP40 Datasheet

Part Number 1200AP40
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description NCP1200AP40
Datasheet 1200AP40 Datasheet1200AP40 Datasheet (PDF)

NCP1200A www.DataSheet4U.com PWM Current−Mode Controller for Universal Off−Line Supplies Featuring Low Standby Power Housed in SOIC−8 or PDIP−8 package, the NCP1200A enhances the previous NCP1200 series by offering a reduced optocoupler current together with an increased drive capability. Due to its novel concept, the circuit allows the implementation of complete off−line AC−DC adapters, battery charger or a SMPS where standby power is a key parameter. With an internal structure operating at a .

  1200AP40   1200AP40






NCP1200AP40

NCP1200A www.DataSheet4U.com PWM Current−Mode Controller for Universal Off−Line Supplies Featuring Low Standby Power Housed in SOIC−8 or PDIP−8 package, the NCP1200A enhances the previous NCP1200 series by offering a reduced optocoupler current together with an increased drive capability. Due to its novel concept, the circuit allows the implementation of complete off−line AC−DC adapters, battery charger or a SMPS where standby power is a key parameter. With an internal structure operating at a fixed 40 kHz, 60 kHz or 100 kHz, the controller supplies itself from the high−voltage rail, avoiding the need of an auxiliary winding. This feature naturally eases the designer task in battery charger applications. Finally, current−mode control provides an excellent audio−susceptibility and inherent pulse−by−pulse control. When the current setpoint falls below a given value, e.g. the output power demand diminishes, the IC automatically enters the so−called skip cycle mode and provides excellent efficiency at light loads. Because this occurs at a user adjustable low peak current, no acoustic noise takes place. The NCP1200A features an efficient protective circuitry which, in presence of an overcurrent condition, disables the output pulses while the device enters a safe burst mode, trying to restart. Once the default has gone, the device auto−recovers. Features 8 1 http://onsemi.com MINIATURE PWM CONTROLLER FOR HIGH POWER AC−DC WALL ADAPTERS AND OFFLINE BATTERY CHARGERS MARKING DIAGRAM.


2009-03-03 : 1200AP40    M38D2    M38D5    MLL5232B    MLL52xxB    ASM3P1819N    ASM3P18S19B    ASM3P2107A    ASM3P2108A    ASM3P2109A   


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