NCP1251BSN65T1G
Power Management
Technical Specifications
| Type | Description |
|---|---|
| Output Current | 400 mA |
| Voltage - Breakdown | - |
| Duty Cycle(Max) | 80% |
| Working Mode | PWM Modulation |
| Feedback System | Secondary-Side Feedback |
| Operating Temperature | -40°C~+125°C |
| Switching Freq Hz | 61kHz~71kHz |
| Type | Description |
|---|---|
| Pd W | - |
| Supply Voltage | 8.2V~20V |
| Topology | Flyback |
| Features | Light load efficient mode;Slope compensation;EMI optimization (spread spectrum);Hiccup current limiting;Under-voltage lockout;Leading edge blanking;Over Voltage Protection;Short Circuit Protection |
| Output Voltage | - |
| Package / Case | SOP-6-1.5mm |
Product Introduction
The NCP1251 implements a standard current mode architecture where the switch−off event is dictated by the peak current setpoint. This component represents the ideal candidate where low part−count and cost effectiveness are the key parameters, particularly in low−cost ac−dc adapters, open−frame power supplies etc. Capitalizing on the NCP120X series success, the NCP1251 packs all the necessary components normally needed in today modern power supply designs, bringing several enhancements such as a non−dissipative OPP.
Features
- Fixed−Frequency 65 or 100 kHz Current−Mode Control Operation
- Internal and Adjustable Over Power Protection (OPP) Circuit
- Frequency Foldback Down to 26 kHz and Skip−Cycle in Light Load Conditions
- Internal Ramp Compensation
- Internal Fixed 4 ms Soft−Start
- 100 ms Timer−Based Auto−Recovery Short−Circuit Protection
- Frequency Jittering in Normal and Frequency Foldback Modes
- Option for Auto−Recovery or Latched Short−Circuit Protection
- OVP Input for Improved Robustness
- Up to 28 V VCC Operation
- Latched or Auto−Recovery OVP Protection on VCC
- +300 mA / −500 mA Source/Sink Drive Capability
- Less than 100 mW Standby Power at High Line
- EPS 2.0 Compliant
- These are Pb−Free Devices
Applications
- ac−dc Converters for TVs, Set−top Boxes and Printers
- Offline Adapters for Notebooks and Netbooks
Datasheet
Alternative Parts
Common NCP1251BSN65T1G alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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