1 Features
1• Input Voltage Range: 6.5 to 18 V
• Total Driver H + L rDS(on): 250 mΩ
• Drive Current: 1.5-A Continuous Winding Current
(2-A Peak)
• Sensorless Proprietary Back Electromotive Force
(BEMF) Control Scheme
• Continuous Sinusoidal 180° Commutation
• No External Sense Resistor Required
• For Flexibility User May Include External Sense
Resistor to Monitor Power Delivered to Motor
• Flexible User Interface Options:
– I2C Interface: Access Registers for Command
and Feedback
– Dedicated SPEED Pin: Accepts Either Analog
or PWM Input
– Dedicated FG Pin: Provides TACH Feedback
– Spin-Up Profile Customizable With EEPROM
– Forward-Reverse Control With DIR Pin
• Integrated Step-Down Regulator to Efficiently
Provide Voltage (5 V or 3.3 V) for Internal and
External Circuits
• Supply Current 4.5 mA With Standby Version
(DRV10975)
• Supply Current 80 μA With Sleep Version
(DRV10975Z)
• Overcurrent Protection
• Lock Detection
• Voltage Surge Protection
• UVLO Protection
• Thermal Shutdown Protection
• Thermally-Enhanced 24-Pin HTSSOP

2 Applications
• Appliance Fan
• HVAC

3 Description
The DRV10975 device is a three-phase sensorless
motor driver with integrated power MOSFETs, which
can provide continuous drive current up to 1.5 A. The
device is specifically designed for cost-sensitive, lownoise,
low-external-component-count applications.
The DRV10975 device uses a proprietary sensorless
control scheme to provide continuous sinusoidal
drive, which significantly reduces the pure tone
acoustics that typically occur as a result of
commutation. The interface to the device is designed
to be simple and flexible. The motor can be controlled
directly through PWM, analog, or I2C inputs. Motor
speed feedback is available through either the FG pin
or I2C.
The DRV10975 device features an integrated stepdown
regulator to efficiently step down the supply
voltage to either 5 or 3.3 V for powering both internal
and external circuits. The device is available in either
a sleep mode or a standby mode version to conserve
power when the motor is not running. The standby
mode (4.5-mA) version leaves the regulator running
and the sleep mode (80-μA) version shuts it off. Use
the standby mode version in applications where the
regulator is used to power an external microcontroller.
TI provides DRV10975 tuning Guide for quick setup
and tuning of the device for optimal performance.