NCP1336BDR2G

The NCP1336BDR2G from On Semiconductor is a high-performance quasi-resonant current-mode controller designed for universal offline supplies. It utilizes a novel valley-lockout system that reduces switching frequency at lighter loads, ensuring stable operation and excellent standby power performance. The controller includes a high-voltage start-up current source for a quick power-on sequence and an adjustable Over Power Protection circuit to clamp delivered power at high line conditions.

Key features include internal 5 ms soft-start, auto-recovery or latched output short-circuit protection, and adjustable timer for improved short-circuit protection. It also offers overvoltage and overtemperature protection inputs, as well as a brownout input to stop operation during low mains conditions. The device operates within a voltage range of 9V to 28V and has an operating temperature range of -40°C to 150°C (TJ).

This controller is particularly well-suited for adapter applications. It is available in a 14-SOIC package and is designed for surface mount applications. The device supports direct optocoupler connection and has a blanking delay to ignore leakage ringing at turn-off, contributing to its extremely low no-load and standby power consumption.