Datasheet Details
| Part number | NCP1680 |
|---|---|
| Manufacturer | onsemi |
| File Size | 2.83 MB |
| Description | Totem Pole CrM Power Factor Correction Controller |
| Datasheet |
 NCP1680 Datasheet
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General Description
Table 1.
Combined OVP/OTP fault pin.
The PFCOK pin is held low when the PFC output voltage is out of regulation and during fault conditions.
Key Features
- Totem Pole PFC Topology Eliminates Input Diode Bridge Enabling Very High Efficiency & Compact Design.
- AC Line Monitoring Circuit & AC Phase Detection.
- Brownout Detection.
- Critical Conduction Mode (CrM) Operation.
- Discontinuous Conduction Mode (DCM) with Valley Turn On under Light Load Conditions.
- Frequency Foldback in DCM with 25 kHz Minimum Frequency.
- Digital Loop Compensation.
- Simplified Valley Sensing.
- Novel Cur.