Product details

Rating Catalog Architecture Integrated FET Control topology Sensorless, Trapezoidal Control interface 1xPWM Vs (min) (V) 5 Vs ABS (max) (V) 20 Features Integrated FETs, Integrated Motor Control, Rotor Lock Protection, Tach/FG Feedback Operating temperature range (°C) -40 to 85
Rating Catalog Architecture Integrated FET Control topology Sensorless, Trapezoidal Control interface 1xPWM Vs (min) (V) 5 Vs ABS (max) (V) 20 Features Integrated FETs, Integrated Motor Control, Rotor Lock Protection, Tach/FG Feedback Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • Input Voltage Range: 5 to 16 V
  • Six Integrated MOSFETs With 1.5-A Continuous
    Output Current
  • Total Driver H + L RDSON 450 mΩ
  • Sensorless Proprietary BMEF Control Scheme
  • 150° Commutation
  • Synchronous Rectification PWM Operation
  • FG and RD Open-Drain Output
  • 5-V LDO for External Use up to 20 mA
  • PWMIN Input from 7 to 100 kHz
  • Overcurrent Protection With Adjustable Limit
    Through External Resistor
  • Lock Detection
  • Voltage Surge Protection
  • UVLO
  • Thermal Shutdown
  • Input Voltage Range: 5 to 16 V
  • Six Integrated MOSFETs With 1.5-A Continuous
    Output Current
  • Total Driver H + L RDSON 450 mΩ
  • Sensorless Proprietary BMEF Control Scheme
  • 150° Commutation
  • Synchronous Rectification PWM Operation
  • FG and RD Open-Drain Output
  • 5-V LDO for External Use up to 20 mA
  • PWMIN Input from 7 to 100 kHz
  • Overcurrent Protection With Adjustable Limit
    Through External Resistor
  • Lock Detection
  • Voltage Surge Protection
  • UVLO
  • Thermal Shutdown

DRV11873 is a three-phase, sensorless motor driver with integrated power MOSFETs with drive current capability up to 1.5-A continuous and 2-A peak. DRV11873 is specifically designed for fan motor drive applications with low noise and low external component count. DRV11873 has built-in overcurrent protection with no external current sense resistor needed. The synchronous rectification mode of operation achieves increased efficiency for motor driver applications. DRV11873 outputs FG and RD to indicate motor status with open-drain output. A 150° sensorless BEMF control scheme is implemented for a three-phase motor. DRV11873 is available in the thermally-efficient 16-pin TSSOP package. The operation temperature is specified from –40°C to 125°C.

DRV11873 is a three-phase, sensorless motor driver with integrated power MOSFETs with drive current capability up to 1.5-A continuous and 2-A peak. DRV11873 is specifically designed for fan motor drive applications with low noise and low external component count. DRV11873 has built-in overcurrent protection with no external current sense resistor needed. The synchronous rectification mode of operation achieves increased efficiency for motor driver applications. DRV11873 outputs FG and RD to indicate motor status with open-drain output. A 150° sensorless BEMF control scheme is implemented for a three-phase motor. DRV11873 is available in the thermally-efficient 16-pin TSSOP package. The operation temperature is specified from –40°C to 125°C.

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Technical documentation

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Type Title Date
* Data sheet DRV11873 12-V, 3-Phase, Sensorless BLDC Motor Driver datasheet (Rev. A) PDF | HTML 25 Nov 2014
Application note Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 14 Oct 2021
Application note DRV11873 Lock Detection Functionality 22 Apr 2016
User guide DRV11873 EVM User Manual (Rev. A) 12 Mar 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

DRV11873EVM — DRV11873 Evaluation Module for 12V, 3-Phase Sensor-Less BLDC Motor Controller

The DRV11873EVM (evaluation module) provides a cost effective, sensorless-solution for running a 3-phase BLDC motor in 150 degree sinusoidal commutation.
User guide: PDF
Not available on TI.com
Package Pins CAD symbols, footprints & 3D models
HTSSOP (PWP) 16 Ultra Librarian

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