NCP1200 - ON Semiconductor

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

NCP1200
Manufacturer

ON Semiconductor
ChipWorker Part#

CW152618652
RoHS

Lead free / RoHS Compliant
Description

Power Factor Controllers
Documentation

Datasheet

NCP1200 Global Supplier

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NCP1200 Specifications

Attribute	Attribute Value

Part Number	NCP1200
Manufacturer	ON Semiconductor
ChipWorker Part#	CW152618652
Documentation	Datasheet
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RoHS	RoHS Compliant

Product Description

Housed in SO-8 or DIP-8 package, the NCP1200 represents a major leap toward ultra-compact Switch-Mode Power Supplies. Thanks 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. Thanks to current-mode control, the NCP1200 drastically simplifies the design of reliable and cheap offline converters with 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 low peak current, no acoustic noise takes place.Finally, the IC is self-supplied from the DC rail, eliminating the need of an auxiliary winding. This feature ensures operation in presence of low output voltage or shorts.
Features
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No Auxiliary Winding Operation
Internal Output Short-Circuit Protection
Extremely Low No-Load Standby Power
Current-Mode with Skip-Cycle Capability
Internal Leading Edge Blanking
250 mA Peak Current Source/Sink Capability
Internally Fixed Frequency at 40 kHz, 60 kHz and 100 kHz
Direct Optocoupler Connection
Built-in Frequency Jittering for Lower EMI
SPICE Models Available for TRANsient and AC Analysis
Internal Temperature Shutdown
Pb-Free Packages are Available

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