Datasheet4U Logo Datasheet4U.com

NCP1231 - Low Standby Power High Performance PWM Controller

Description

Pin No.

end stage Pin Description This pin is a direct connection to the VCC pin (Pin 6) via a low impedance switch.

In standby and during the startup sequence, the switch is open and the PFC VCC is shutdown.

As soon as the aux.

Features

  • offered by the NCP1231 is an event management scheme that can disable the front.
  • end PFC circuit during standby, thus reducing the no load power consumption. The NCP1231 itself goes into cycle skipping at light loads while limiting peak current (to 25% of nominal peak) so that no acoustic noise is generated and while in the skip cycle mode. The NCP1231 also features an internal latching function that can be used for Overvoltage Protection (OVP). The latch is triggered when the voltage on.

📥 Download Datasheet

Datasheet Details

Part number NCP1231
Manufacturer onsemi
File Size 518.14 KB
Description Low Standby Power High Performance PWM Controller
Datasheet download datasheet NCP1231 Datasheet

📁 Similar Datasheet

  • NCP1232 - Microprocessor Monitor (ON)
  • NCP1212 - Current Mode PWM Controller (ON)
  • NCP1215 - Low Cost Variable OFF Time Switched Mode Power Supply Controller (ON)
  • NCP1216 - PWM Current-Mode Controller (ON)
  • NCP1225 - Low Standby Power SMPS Controller (ON)
  • NCP1280 - Active Clamp Voltage Mode PWM Controller (ON)
  • NCP1030 - Integrated DC-DC Converter (ON)
  • NCP1031 - Integrated DC-DC Converter (ON)
  • NCP1086 - 1.5A Adjustable and 3.3V Fixed Output Linear Regulator (ON)
  • NCP1410 - 250 mA Sync-Rect PFM Step-Up DC-DC Converter (ON)
Other Datasheets by ON Semiconductor
  • NCP1230 - Low Standby Power High Performance PWM Controller
  • NCP1230A - Low-Standby Power Soft Skip Mode Controller
  • NCP1234 - Fixed Frequency Current Mode Controller
  • NCP1235 - Fixed Frequency Current Mode Controller
  • NCP1236 - Fixed Frequency Controller
  • NCP1237 - Fixed Frequency Current Mode Controller
  • NCP1238 - Fixed-Frequency Controller
  • NCP1239 - Fixed Frequency Current-Mode Controller

Full PDF Text Transcription

Click to expand full text
www.DataSheet4U.com NCP1231 Low−Standby Power High Performance PWM Controller The NCP1231 represents a major leap towards achieving low standby power in medium−to−high power Switched−Mode Power Supplies such as notebook adapters, off−line battery chargers and consumer electronics equipment. Housed in SOIC−8 or PDIP−8, the NCP1231 contains all needed control functionality to build a rugged and efficient power supply. Among the unique features offered by the NCP1231 is an event management scheme that can disable the front−end PFC circuit during standby, thus reducing the no load power consumption. The NCP1231 itself goes into cycle skipping at light loads while limiting peak current (to 25% of nominal peak) so that no acoustic noise is generated and while in the skip cycle mode.
Published: |