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1200P100

ON Semiconductor
Part Number 1200P100
Manufacturer ON Semiconductor
Description PWM Current-Mode Controller
Published Jan 13, 2012
Detailed Description NCP1200 PWM Current-Mode Controller for Low-Power Universal Off-Line Supplies Housed in SOIC−8 or PDIP−8 package, the N...
Datasheet PDF File 1200P100 PDF File

1200P100
1200P100

Overview
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 feedback scheme.
With an internal structure operating at a fixed 40 kHz, 60 kHz or 100 kHz, the controller drives low gate−charge switching devices like an IGBT or a MOSFET thus requiring a very small operating power.
Due to current−mode control, the NCP1200 drastically simplifies the design of reliable and cheap offline converters with extremely low acoustic generation and inherent pulse−by−pulse control.
When the current setpoint falls below a given value, e.
g.
the output power demand diminish...


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