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NCP1200A Datasheet

Part Number NCP1200A
Manufacturers ON
Logo ON
Description PWM Current-Mode Controller
Datasheet NCP1200A DatasheetNCP1200A Datasheet (PDF)

NCP1200A 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 .

  NCP1200A   NCP1200A






Part Number NCP1200D
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description PWM Controller
Datasheet NCP1200A DatasheetNCP1200D Datasheet (PDF)

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  NCP1200A   NCP1200A







Part Number NCP1200CH
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description PWM Controller
Datasheet NCP1200A DatasheetNCP1200CH Datasheet (PDF)

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  NCP1200A   NCP1200A







Part Number NCP1200
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description PWM Current-Mode Controller
Datasheet NCP1200A DatasheetNCP1200 Datasheet (PDF)

NCP1200 PWM Current-Mode Controller for Low-Power Universal Off-Line Supplies Housed in SOIC−8 or PDIP−8 package, the NCP1200 represents a major leap toward ultra−compact Switchmode Power Supplies. Due to a novel concept, the circuit allows the implementation of a complete offline battery charger or a standby SMPS with few external components. Furthermore, an integrated output short−circuit protection lets the designer build an extremely low−cost AC−DC wall adapter associated with a simplified .

  NCP1200A   NCP1200A







PWM Current-Mode Controller

NCP1200A 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 • No Auxiliary Winding Operation • Auto−Recovery Internal Output Short−Circuit Protection • Extremely Low No−Load Standby Power • Current−Mode Contro.


2005-05-12 : NTE5586    NTE5587    NTE5588    NTE5589    NTE5590    NTE5591    NTE5592    NTE5593    NTE5597    NTE56   


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