NCP1345
features a precise, primary side based output current limiting circuit to ensure a constant output current limit regardless of programmed output voltage, or nameplate output power.
The quasi- resonant (QR) current- mode flyback stage features proprietary valley- lockout circuitry to ensure stable valley switching down to the 6th valley, then transitions to frequency foldback mode to reduce switching losses. As the load decreases further, the NCP1345 enters skip mode to manage the power delivery.
To help ensure converter ruggedness, the NCP1345 implements several key protective features such as internal brownout detection, a maximum output current limit regardless of input voltage, a latched over voltage and NTC- ready overtemperature protection through a dedicated pin, and line removal detection to safely discharge the X2 capacitors when the line is removed.
Features
- Integrated High- Voltage Startup Circuit with Brownout Detection
- Integrated X2 Capacitor Discharge Capability
- Wide...
