Datasheet4U Logo Datasheet4U.com

NCP81178 - Secondary Synchronous Rectifier Driver

Description

Pin No.

Primary shutdown detection.

shuts down.

Features

  • N.
  • Channel Synchronous Rectifier MOSFET Driver.
  • PWM Input Derived from a Winding on the Main Transformer or Directly from a Pulse Transformer.
  • Internally Generated PWM Threshold Voltage that can be Programmed Externally.
  • Pre.
  • bias Startup Capability.
  • Primary Shutdown Detection.
  • Frequency Detection Window.
  • Wide VIN/VCC Range: 4.5 V to 14 V.
  • 6 V/150 mA LDO for VCC Supply.
  • 4.5 A/3.8 A Sink and 3 A Source.

📥 Download Datasheet

Datasheet preview – NCP81178

Datasheet Details

Part number NCP81178
Manufacturer ON Semiconductor
File Size 198.00 KB
Description Secondary Synchronous Rectifier Driver
Datasheet download datasheet NCP81178 Datasheet
Additional preview pages of the NCP81178 datasheet.

📁 Similar Datasheet

Other Datasheets by ON Semiconductor
  • NCP81172 - 2-Phase Synchronous Buck Controller
  • NCP81174 - 4/3/2-Phase Synchronous Buck Controller
  • NCP81174N - 4/3/2-Phase Synchronous Buck Controller
  • NCP81105 - 1/2/3 Phase Power Controller
  • NCP81105H - 1/2/3 Phase Power Controller
  • NCP81111 - 3 Phase VR12.5-6 High Speed Digital Controller
  • NCP81119 - Multiple-Phase Controller
  • NCP81119A - Multiple-Phase Controller

Full PDF Text Transcription

Click to expand full text
NCP81178 Secondary Synchronous Rectifier Driver for Forward Converters The NCP81178 is a secondary−side synchronous rectifier driver designed for isolated power converters, especially actively clamped forward and fly−back, and asymmetric half−bridge converters. The NCP81178 drives two N−channel MOSFETs on the secondary side in a complementary manner. It accepts a PWM input signal derived from the secondary winding or an auxiliary winding on the main power transformer. It can also take a PWM signal from the primary−side controller through a pulse transformer or other isolators.
Published: |