The NCP1341 is a highly integrated quasi-resonant flyback controller designed for efficient off-line power converters. It features valley lockout circuitry, frequency foldback, skip modes with Quiet-Skip technology, and advanced protective features including brownout, overvoltage, and overcurrent protections. With a wide operating voltage range from 9 V to 28 V, integrated X2 capacitor discharge, and power excursion mode, it ensures low-no-load power consumption below 30 mW. Ideal for high-performance power supplies requiring fine stability, minimal EMI, and compact design.
High-Voltage Startup Circuit with Brownout Detection
Integrated X2 Capacitor Discharge Capability
Frequency Foldback Mode with Minimum clamp at 25 kHz
Valley Lockout circuitry for stability across load variations
Skip Mode with Quiet-Skip technology for noise reduction
Power Excursion Mode (PEM) for up to 2x power during transient demand
Fault Pin for overvoltage and overtemperature detection
Thermal Shutdown at 140°C ± 5°C junction temperature
Line removal detection with active discharge circuit
Current limit threshold: adjustable and typical overcurrent detection at 1.2 V
Maximum On-Time: 32 µs
Operating frequency: up to 110 kHz with external FMAX resistor
Package: SOIC-8 NB, SOIC-9 NB
Buy the Buy ON Semiconductor NCP1341 High-Voltage Quasi-Resonant Controller Part Number NCP1341B5D1R2G Online
Purchase the ON Semiconductor NCP1341 flyback controller online today—engineered for high efficiency, low power consumption, and advanced protection. Its valley lockout circuitry, frequency foldback, skip modes with Quiet-Skip, and power excursion mode enable reliable operation across a wide load range. Compact and robust with integrated X2 capacitor discharge, this controller is ideal for low-no-load power supplies, adapters, and open-frame power systems. Ensure your design meets international safety standards while maximizing performance and minimizing EMI by buying from authorized ON Semiconductor distributors.
Get ON Semiconductor NCP1341 high-voltage flyback controller today—designed for optimal efficiency, low standby power, and robust protective features for reliable power supply solutions.
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