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NCP81146 - VR12.5 Compatible Synchronous Buck MOSFET Driver

Description

Pin No.

Description Floating bootstrap supply pin for high side gate driver.

Connect the bootstrap capacitor between this pin and the SW pin.

Features

  • Faster Rise and Fall Times.
  • Adaptive Anti.
  • Cross.
  • Conduction Circuit.
  • Integrated Bootstrap Diode.
  • Pre OV function.
  • ZCD Detect.
  • Floating Top Driver Accommodates Boost Voltages of up to 35 V.
  • Output Disable Control Turns Off Both MOSFETs.
  • Under.
  • voltage Lockout.
  • Power Saving Operation Under Light Load Conditions.
  • Direct Interface to NCP6151 and Other Compatible PWM Controllers.

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Datasheet preview – NCP81146

Datasheet Details

Part number NCP81146
Manufacturer ON Semiconductor
File Size 123.76 KB
Description VR12.5 Compatible Synchronous Buck MOSFET Driver
Datasheet download datasheet NCP81146 Datasheet
Additional preview pages of the NCP81146 datasheet.

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Full PDF Text Transcription

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NCP81146 VR12.5 Compatible Synchronous Buck MOSFET Drivers The NCP81146 is a high performance dual MOSFET gate driver optimized to drive the gates of both high−side and low−side power MOSFETs in a synchronous buck converter. It can drive up to 3 nF load with a 25 ns propagation delay and 20 ns transition time. Adaptive anti−cross−conduction and power saving operation circuit can provide a low switching loss and high efficiency solution for notebook and desktop systems. Bidirectional EN pin can provide a fault signal to controller when the gate driver fault detect under OVP, UVLO occur. Also, an under−voltage lockout function guarantees the outputs are low when supply voltage is low.
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