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RAA220001 - Synchronous Rectified Buck MOSFET Driver

Features

  • Dual MOSFET drives for synchronous rectified bridge.
  • Advanced adaptive zero shoot-through protection ○ PHASE detection ○ LGATE detection ○ Auto-zero of rDS(ON) conduction offset effect.
  • Low standby bias current.
  • 36V internal bootstrap switcher.
  • Bootstrap capacitor overcharging prevention.
  • Integrated high-side gate-to-source resistor to prevent from self turn-on due to high input bus dV/dt.
  • Pre-POR overvoltage protection for start-up.

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Full PDF Text Transcription

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Datasheet RAA220001 Synchronous Rectified Buck MOSFET Driver The RAA220001 is a high frequency MOSFET driver designed to drive upper and lower power N-channel MOSFETs in a synchronous rectified buck converter topology. In the RAA220001, the upper and lower gates are both driven to an externally applied voltage that provides the capability to optimize applications involving trade-offs between gate charge and conduction losses. An advanced adaptive shoot-through protection is integrated to prevent both the upper and lower MOSFETs from conducting simultaneously and to minimize dead time. The RAA220001 has a 10kΩ integrated high-side gate-to-source resistor to prevent self turn-on due to high input bus dV/dt.
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