NCP1351 - Variable Off Time PWM Controller
NCP1351 Variable Off Time PWM Controller The NCP1351 is a current-mode controller targeting low power off-line flyback Switched Mode Power Supplies (SMPS) where cost is of utmost importance.
Based on a fixed peak current technique (quasi-fixed TON), the controller decreases its switching frequency as the load becomes lighter.
As a result, a power supply using the NCP1351 naturally offers excellent no-load power consumption, while optimizing the efficiency in other loading conditions.
When the
