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NCP1340 Datasheet Controller Featuring Valley Lock-out Switching

Manufacturer: onsemi

Overview: DATA SHEET .onsemi. High-Voltage, Quasi-Resonant, Controller Featuring Valley Lock-Out Switching 8 1 SOIC-8 NB D SUFFIX CASE 751 9 1 SOIC-9 NB D1 SUFFIX CASE 751BP NCP1340 The NCP1340 is a highly integrated quasi-resonant flyback controller suitable for designing high-performance off-line power converters. With an integrated active X2 capacitor discharge feature, the NCP1340 can enable no-load power consumption below 30 mW.

Key Features

  • a proprietary valley-lockout circuitry, ensuring stable valley switching. This system works down to the 6th valley and transitions to frequency foldback mode to reduce switching losses. As the load decreases further, the NCP1340 enters quiet-skip mode to manage the power delivery while minimizing acoustic noise. To help ensure converter ruggedness, the NCP1340 implements several key protective features such as internal brownout detection, a non-dissipative Over Power Protection (OPP) for constan.

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NCP1340 Distributor