NCP1236BD65R2G

The NCP1236BD65R2G from ON Semiconductor is a fixed-frequency current-mode controller specifically designed for flyback converter applications. This device features a 65 kHz oscillator frequency and incorporates built-in ramp compensation for stable operation. It is pin-to-pin compatible with previous NCP12xx families, simplifying design upgrades.

Key features include frequency foldback and skip mode for optimized light-load efficiency and low standby power consumption. The controller also includes timer-based overload protection, adjustable overpower compensation, and a latch-off input for severe fault conditions. Its high-voltage circuitry integrates a start-up current source and a brown-out detector, simplifying the VCC capacitor design. The device operates over a wide voltage range of 9.5V to 28V and has an internal thermal shutdown feature.

This controller is available in a 7-SOIC package and is suitable for surface mounting. It is designed for applications such as AC-DC adapters for notebooks, LCDs, and printers, offline battery chargers, and consumer electronic power supplies. The NCP1236BD65R2G is RoHS3 compliant and Halogen Free.

Applications include AC-DC adapters, offline battery chargers, and consumer electronic power supplies. The device's robust protection features, including over load, over power, over temperature, and over voltage, enhance the safety level of the final application.