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NCP1256ESN65T1G Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
NCP1256ESN65T1GON9000Yes

NCP1256ESN65T1G** is a highly integrated PWM controller manufactured by **ON Semiconductor**, designed for offline power supply applications.

The NCP1256ESN65T1G is a highly integrated PWM controller manufactured by ON Semiconductor, designed for offline power supply applications. Below are its key specifications, descriptions, and features:

Manufacturer:

ON Semiconductor

Specifications:

  • Topology: Flyback
  • Input Voltage Range: Up to 650V (HV startup)
  • Switching Frequency: Adjustable up to 130kHz
  • Output Power: Suitable for mid-power AC-DC adapters and power supplies
  • Standby Power Consumption: <30mW (with external circuitry)
  • Operating Temperature Range: -40°C to +125°C
  • Package: SOIC-8 (Surface Mount)

Descriptions:

The NCP1256ESN65T1G is a fixed-frequency current-mode PWM controller optimized for offline power supplies. It features a high-voltage startup circuit, reducing external component count. The controller includes protections such as over-voltage (OVP), over-current (OCP), and brown-out detection for robust operation.

Features:

  • Fixed-Frequency Operation: Ensures stable switching performance.
  • Current-Mode Control: Improves transient response and simplifies loop compensation.
  • HV Startup Circuit: Eliminates the need for an auxiliary winding.
  • Frequency Jittering: Reduces EMI emissions.
  • Auto-Recovery Protection: Includes OVP, OCP, and brown-out protection.
  • Soft-Start: Minimizes inrush current during startup.
  • Skip Mode Operation: Enhances light-load efficiency.

This controller is ideal for AC-DC adapters, LED drivers, and auxiliary power supplies requiring high efficiency and reliability.

(Note: Always refer to the official datasheet for detailed electrical characteristics and application guidelines.)

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