DRV8106-Q1

• AEC-Q100 qualified for automotive applications:
  • Temperature grade 1: –40°C to +125°C, T_A
• Half-bridge smart gate driver
  • 4.9-V to 37-V (40-V abs. max) operating range
  • Doubler charge pump for 100% PWM
• Pin to pin gate driver variants
  • DRV8705-Q1:H-bridge with low-side amplifier
  • DRV8706-Q1:H-bridge with inline amplifier
• Smart gate drive architecture
  • Adjustable slew rate control
  • 0.5-mA to 62-mA peak source current output
  • 0.5-mA to 62-mA peak sink current output
  • Integrated dead-time handshaking
• Wide common mode current shunt amplifier
  • Supports inline, high-side, or low-side
  • Adjustable gain settings (10, 20, 40, 80 V/V)
  • Integrated feedback resistors
  • Adjustable PWM blanking scheme
• Multiple interface options available
  • SPI: Detailed configuration and diagnostics
  • H/W: Simplified control and less MCU pins
• Spread spectrum clocking for EMI reduction
• Compact VQFN package with wettable flanks
• Integrated protection features
  • Dedicated driver disable pin (DRVOFF)
  • Supply and regulator voltage monitors
  • MOSFET V_DS overcurrent monitors
  • MOSFET V_GS gate fault monitors
  • Charge pump for reverse polarity MOSFET
  • Offline open load and short circuit diagnostics
  • Device thermal warning and shutdown
  • Fault condition interrupt pin (nFAULT)

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The DRV8106-Q1 is a highly integrated half-bridge gate driver, capable of driving high-side and low-side N-channel power MOSFETs. It generates the proper gate drive voltages using an integrated doubler charge pump for the high-side and a linear regulator for the low-side.

The device uses a smart gate drive architecture to reduce system cost and improve reliability. The gate driver optimizes dead time to avoid shoot-through conditions, provides control to decreasing electromagnetic interference (EMI) through adjustable gate drive current, and protects against drain to source and gate short conditions with V_DS and V_GS monitors.

A wide common mode shunt amplifier provides inline current sensing to continuously measure motor current even during recirculating windows. The amplifier can be used in low-side or high-side sense configurations if inline sensing is not required.

The DRV8106-Q1 provide an array of protection features to ensure robust system operation. These include under and overvoltage monitors for the power supply and charge pump, V_DS overcurrent and V_GS gate fault monitors for the external MOSFETs, offline open load and short circuit diagnostics, and internal thermal warning and shutdown protection.