Part Number: DAP6A ( = NCP1200 )
Function: PWM Controller, Fixed Frequency, Flyback, Current Mode
Package: SOP 8 Pin Type
Manufacturer: ON Semiconductor
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Description
Housed in SO-8 or DIP-8 package, the DAP6A 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.
Features
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
Pinouts
Applications
1. AC/DC Adapters
2. Offline Battery Chargers
3. Auxiliary/Ancillary Power Supplies (USB, Appliances, TVs, etc.)
Other data sheets are available within the file: DAP008
DAP6A Datasheet PDF Download
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