1200P60 Datasheet – PWM Current-Mode Controller – ONsemi

Part Number: NCP1200P60G, Marking : 1200P60

Function : PWM Current-Mode Controller for Low-Power Universal Off-Line Supplies

Manufacturer: ON Semiconductor


1200P60 pwm controller



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.


1200P60 pinout


1. No Auxiliary Winding Operation
2. Internal Output Short−Circuit Protection
3. Extremely Low No−Load Standby Power
4. Current−Mode with Skip−Cycle Capability
5. Internal Leading Edge Blanking
6. 250 mA Peak Current Source/Sink Capability
7. Internally Fixed Frequency at 40 kHz, 60 kHz and 100 kHz
8. Direct Optocoupler Connection
9. Built−in Frequency Jittering for Lower EMI
10. SPICE Models Available for TRANsient and AC Analysis
11. Internal Temperature Shutdown
12. These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant

Typical Application

1200P60 typical application

Typical Applications

1. AC−DC Adapters
2. Offline Battery Chargers
3. Auxiliary/Ancillary Power Supplies (USB, Appliances, TVs, etc.)


Ordering Information

1200P60 marking


1200P60 Datasheet