The NCP1340B3D1R2G is a highly integrated, quasi-resonant flyback controller designed for efficient off-line power converters. It features valley lockout circuitry, frequency foldback, skip mode, and active X2 capacitor discharge for low no-load power consumption below 30 mW. The device offers multiple protective features including brownout detection, over power protection, overvoltage and overtemperature protections, line removal detection, and integrated high-voltage start-up circuitry. Its optimized low-current design ensures reliable operation in low-power applications, making it suitable for adapters and power supplies where efficiency, safety, and low standby power are critical.
Integrated High-Voltage Startup Circuit with Brownout Detection
Active X2 Capacitor Discharge Capability
Over Power Protection (OPP) with Adjustable Threshold
Frequency Foldback with Minimum 25 kHz Clamp
Valley Lockout circuitry for stability
Skip Mode with Quiet-Skip Technology and Burst Regulation
Line Removal Detection for Safe Discharge of Input Capacitors
Overvoltage and Overtemperature Protection with Dedicated Fault Pin
SOP-8 and SOIC-9 Package Options
Maximum Junction Temperature 125°C
Low quiescent current for minimal standby power
Soft-start duration of approximately 4 ms
Frequency jittering for EMI reduction
Fault detection modes including latch and auto-recovery
Thermal shutdown built-in for robustness
Buy the Buy ON Semiconductor NCP1340B3D1R2G Part Number NCP1340B3D1R2G Online
Order the ON Semiconductor NCP1340B3D1R2G today to enhance your power supply designs with advanced features like valley lockout, frequency foldback, skip mode, and comprehensive protections. This high-performance controller provides excellent efficiency, minimal no-load power consumption below 30 mW, and safety compliance through line removal detection and input capacitor discharge circuitry. Perfect for adapters and off-line power systems, it ensures reliable operation across a broad input voltage range while reducing EMI through frequency jittering and noise suppression techniques. Experience superior control and rugged protection in your power management solutions with fast delivery online.
Buy ON Semiconductor NCP1340B3D1R2G now and experience unmatched reliability and performance in efficient, safe, and low-noise power supplies.
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