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NCP1200P60. from ON,ON Semiconductor

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NCP1200P60.

Manufacturer: ON

PWM Current-Mode Controller for Low-Power Universal Off-Line Supplies

Partnumber Manufacturer Quantity Availability
NCP1200P60.,NCP1200P60 ON 50 In Stock

Description and Introduction

PWM Current-Mode Controller for Low-Power Universal Off-Line Supplies The **NCP1200P60** is a high-performance, fixed-frequency current-mode PWM controller designed for offline power supply applications. This integrated circuit (IC) is widely used in switch-mode power supplies (SMPS), offering robust performance and efficiency in AC-DC conversion.  

Key features of the NCP1200P60 include a built-in high-voltage startup circuit, eliminating the need for an external startup resistor, and a proprietary soft-start function to reduce inrush current. Operating at a fixed 60 kHz switching frequency, it ensures stable and reliable power delivery while minimizing electromagnetic interference (EMI).  

The controller incorporates advanced protection mechanisms such as overvoltage protection (OVP), overload detection, and latch-off functionality, enhancing system safety. Its current-mode control architecture provides excellent line and load regulation, making it suitable for a variety of power supply designs, including adapters, auxiliary power supplies, and industrial applications.  

With a compact DIP-8 package, the NCP1200P60 simplifies board layout and reduces component count. Its low standby power consumption aligns with modern energy efficiency standards, making it a practical choice for designers seeking reliable and cost-effective power management solutions.  

Overall, the NCP1200P60 offers a balanced combination of performance, protection, and ease of integration, making it a versatile choice for offline power conversion systems.

Application Scenarios & Design Considerations

PWM Current-Mode Controller for Low-Power Universal Off-Line Supplies

Alternative Part Number

  • UC3845BN --: Industry-standard current-mode PWM controller in DIP-8, widely used as a drop-in replacement for offline flyback designs like the NCP1200P60.
  • SG6848 --: Green-mode PWM controller with integrated high-voltage startup, functionally similar to the NCP1200 series for low-power SMPS applications.
  • OB2263 --: Low-cost current-mode PWM controller with built-in high-voltage startup, commonly substituted for NCP1200 in adapter and charger designs.

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