TMC6140 – MEV Elektronik GmbH
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3-Phase BLDC MOSFET Gate Driver (30V) with bottom shunt amplifiers

The TMC6140 is a fully integrated universal 3-phase MOSFET gate driver for PMSM servo or BLDC motors. External MOSFETs for up to 100 A motor current are supported. Three bottom shunt amplifiers allow easy current sensing and enhanced commutation of the motor. A switching regulator (3,3 V, 0,5 A, internal Schottky diode for up to 100mA) generates enough power for the IOs and an external microcontroller. Further on, it can serve as step-up converter to stabilize statically the gate voltages of the MOSFETs. A DIAG output for further diagnostics and two different power down modes are available.


  • 3-phase motors up to 100 A coil current (external MOSFETs)
  • Voltage Range 5. . .30 V DC
  • Gate Drive 0,5 A or 1,0 A
  • 3V3 Switching Regulator (0,5 A) with internal Schottky diode (up to 100 mA)
  • Charge pump pin to utilize buck converter for step-up converter
  • Tree Bottom Shunt Amplifiers
  • Analog programmable short detect
  • Two Low Power Modes with 0,25 mA standby current consumption
  • Diagnostics output via UART-TxD


  • Industrial Drives
  • Power Tools
  • Robotics
  • Textile Machines
  • Factory Automation
  • Laboratory Automation
  • Pumps
  • Fans
  • Battery Operated Devices

Technical Data


Motor Type: BLDC/PMSM, 3-phase
No. Axes: 1
Motor Supply: 8…30V
Gate Driver Current, max: 0,5 / 1 A
Interfaces: 3x HS/LS, UART
Temperature Range: -40…125°C
Package: QFN36 5×6 mm
Order codes: TMC6140-LA


TMC6140 datasheet (PDF)

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