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Home » NEWEST Products » New by Manufacturer » Microchip Technology » MIC4605 MOSFET Drivers - Microchip/Micrel
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Micrel MIC4605 85V Half-Bridge MOSFET Drivers

Microchip/Micrel MIC4605
85V Half-Bridge MOSFET Drivers

Microchip/Micrel MIC4605 85V Half-Bridge MOSFET Drivers with Adaptive Dead Time and Shoot-Through Protection actively monitors the half-bridge outputs to minimize the time between high-side and low-side MOSFET transitions and maximize power efficiency. Adaptive dead time circuitry automatically adjusts the dead time between high- and low-side MOSFETs and provides a dead-time rating under 20ns. MIC4605's anti-shoot-through circuitry prevents erroneous inputs and noise from turning both MOSFETS on at the same time. With a wide 5.5V to 16V operating supply range, MIC4605 maximizes system efficiency and enables longer run times in battery-powered applications. In addition, the MIC4605's adjustable gate drive sets the gate drive voltage to VDD for optimal MOSFET RDS(ON), which minimizes power loss due to the MOSFET's RDS(ON). Micrel's  MIC4605 85V Half-Bridge MOSFET Drivers are available in an 8-pin SOIC package and a tiny 10-pin 2.5mm × 2.5mm TDFN package. Both packages have an operating junction temperature range of -40°C to +125°C.

  • 5.5V to 16V gate drive supply voltage range
  • Advanced adaptive-dead-time
  • Intelligent shoot-through protection
    MIC4605-1: Dual TTL inputs
    MIC4605-2: Single PWM input
  • Enable input for on/off control
  • On-chip bootstrap diode
  • Fast 35ns propagation times
  • Drives 1000pF load with 20ns rise and fall times
  • Low power consumption: 135µA quiescent current
  • Separate high- and low-side undervoltage protection
    -40°C to +125°C junction temperature range

  • Fans
  • Power inverters
  • High-voltage step-down regulators
  • Half-, full-,and three-phase bridge motor drives
  • Appliances
  • E-bikes

Microchip/Micrel Brushless Motor Reference Design Demo

Typical Application
Micrel MIC4605 85V Half-Bridge MOSFET Driver Typical Application

Block Diagram
Micrel MIC4605 85V Half-Bridge MOSFET Driver Block Diagram

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  • Micrel / Microchip