Motor Drive & Control

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Integrated Motor Drivers

A motor driver circuit is designed to drive an electromagnetic load, such as a brushed or brushless motor, stepper motor or a solenoid or relay.

Motors typically require voltages and/or currents that exceed what can be provided by the analog or digital signal processing circuitry that controls them. The motor driver provides the interface between the signal processing circuitry and the motor itself. It is essentially the “amplifier” for the motor.

Motor drivers can be constructed from discrete components, completely integrated inside an IC, or may employ both discrete and integrated components. When current and voltage levels allow, integration of the entire motor driver inside a single IC generally provides the highest level of functionality and performance at the smallest physical size.

In addition to providing high-voltage and high-current drive, motor drivers also often integrate control circuitry, such as current regulation or digital state machines to operate the motor. Integrated motor drivers from TI also include robust protection schemes, including short-circuit, over current, over temperature, shoot-through and under-voltage protection, to prevent system failures in the event of electrical or mechanical faults.

Advantages to TI's DRV8x integrated motor drivers:

  • Integrated pre-driver and power stage capable of up to 24A peak current with 50V supply rail
  • Reduced board space and bill of materials (BOM) enable smaller form factor design
  • Integrated control logic for current regulation, PWM generation, and micro-stepping indexer
  • Synchronous rectification, short dead-times, and low RDSON improve thermal performance and extend battery life
  • Extensive on-chip protection including over current, over temperature, under voltage, and short circuit protection

Advantages to TI’s integrated fan motor drivers:

  • 1.65 to 24V wide supply supports a variety of applications up to 2A max continuous drive
  • Zero code development and minimum external component count saves cost and board space
  • DRV10x InstaSPIN™-FAN technology enables true sensor-less drive optimized for 3-phase BLDC fan motors
  • On-chip protection for over current, under / over voltage, and over temperature conditions, and detection for lock condition
  • Able to drive BLDC motors in applications other than fans

Stepper Motors

Mid-voltage Stepper Drivers
Part Number
Description
Voltage
Ctrl I/F
DRV8412 3A High-performance Stepper Driver 0 to 52V PWM
DRV8711 Stepper pre-driver w/ on-chip 1/256 μStepping indexer and stall detect 8 to 52V Indexer, PWM or Serial
DRV8432 6A High-performance Stepper Driver 0 to 52V PWM
DRV8812 1.6A Stepper Driver 8 to 45V Phase/Enable
DRV8813 2.5A Stepper Driver 8 to 45V Phase/Enable
DRV8823 Dual 1.5A Stepper Driver 8 to 32V Serial
DRV8828 3A stepper driver (need 2x per motor) 8 to 45V Phase/Enable
DRV8829 5A Stepper Driver (need 2x per motor) 8 to 45V Phase/Enable
DRV8842 5A Stepper Driver (need 2x per motor) 8 to 45V PWM
DRV8843 2.5A Stepper Driver 8 to 45V PWM


Indexers (Stepper Drivers with On-chip Microstepping Support)
Part Number
Description
Voltage
Ctrl I/F
DRV8811 1.9A Stepper Driver (8 microsteps) 8 to 38V Indexer
DRV8818 2.5A Stepper Driver (8 microsteps) 8 to 35V Indexer
DRV8821 Dual 1.5A Stepper Driver (8 microsteps) 8 to 32V Indexer
DRV8824 1.6A Stepper Driver (32 microsteps) 8 to 45V Indexer
DRV8825 2.5A Stepper Driver (32 microsteps) 8 to 45V Indexer


Unipolar Stepper Drivers
Part Number
Description
Voltage
Ctrl I/F
DRV8803 2A Unipolar Stepper Driver 8 to 60V PWM
DRV8804 2A Unipolar Stepper Driver 8 to 60V Serial
DRV8805 2A Unipolar Stepper Driver with Indexer 8 to 60V Indexer
DRV8806 2A Unipolar Stepper Driver with Open Load Detect 8 to 40V Serial


Low-voltage Stepper Drivers
Part Number
Description
Voltage
Ctrl I/F
DRV8833 2A Stepper Driver 2.7 to 10.8V PWM
DRV8834 2.2A Stepper Driver (32 microsteps) 2.5 to 10.8V Indexer or Phase/Enable
DRV8835 1.5A Stepper Driver with Dual Supplies 2.0 to 11V PWM or Phase/Enable
DRV8836 1.5A Stepper Driver 2.0 to 7V PWM or Phase/Enable

Brushed DC Motors

Mid-voltage Brushed DC Drivers
Part Number
Description
Voltage
Ctrl I/F
DRV8412 12A High-performance Brushed DC Driver 0 to 52V PWM
DRV8432 24A high performance brushed DC driver 0 to 52V PWM
DRV8800 2.2A Brushed DC Driver 8 to 36V Phase/Enable
DRV8801 2.2A Brushed DC Driver with Current Sense Pin 8 to 36V Phase/Enable
DRV8840 5A Brushed DC Driver 8 to 45V Phase/Enable
DRV8842 5A Brushed DC Driver 8 to 45V PWM


Dual / Quad Brushed DC Drivers
Part Number
Description
Voltage
Ctrl I/F
DRV8412 Dual 6A High-Performance Brushed DC Driver 0 to 52V PWM
DRV8432 Dual 12A High-Performance Brushed DC Driver 0 to 52V PWM
DRV8802 Dual 1.6A Brushed DC Driver 8 to 45V Phase/Enable
DRV8814 Dual 2.5A Brushed DC Driver 8 to 45V Phase/Enable
DRV8823 Quad 1.5A Brushed DC Driver 8 to 32V Serial
DRV8843 Dual 2.5A Brushed DC Driver 8 to 45V PWM


Low-voltage Brushed DC Drivers
Part Number
Description
Voltage
Ctrl I/F
DRV8830 1A Brushed DC Driver with On-chip Speed Regulation 2.75 to 6.8V IN/IN
DRV8832 1A Brushed DC Driver with On-chip Speed Regulation 2.75 to 6.8V Serial
DRV8833 Dual 2A or Single 4A Brushed DC Driver 2.7 to 10.8V PWM
DRV8835 Dual 1.5A or Single 3A Brushed DC Driver with Dual Supplies 2.0 to 11V PWM or Phase/Enable
DRV8836 Dual 1.5A or Single 3A Brushed DC Driver 2.0 to 7V PWM or Phase/Enable
DRV8837 1.8A Brushed DC Driver with Dual Supplies 1.8 to 11V PWM
DRV8839 Dual 1.8A or single 1.8A brushed DC driver 1.8 to 11V PWM

Brushless DC Motors

3-Phase Brushless DC Drivers
Part Number
Description
Voltage
Ctrl I/F
DRV8301 3-phase Pre-driver with 1.5A Step-down Voltage Regulator and Dual Current Sense Amplifiers (SPI Control) 6 to 60V PWM
DRV8302 3-phase Pre-driver with 1.5A Step-down Voltage Regulator and Dual Current Sense Amplifiers (H/W Control) 6 to 60V PWM
DRV8303 Three Phase Pre-Driver with Dual Current Shunt Amplifiers 6 to 60V PWM
DRV8308 3-Phase BLDC Controller and Pre-Driver and Integrated Digital Speed Loop 8.5 to 32V PWM
DRV8312 6.5A High Performance 3-phase Driver 0 to 52V PWM
DRV8313 2.5-A 3-phase driver w/10-mA LDO 8 to 60V PWM
DRV8332 13A High Performance 3-phase Driver 0 to 52V PWM

Integrated Fan Motors

BLDC Fan Motor Drivers
Part Number
Description
Voltage
IOUT (mA)
DRV10866 5V 3-phase sensor-less BLDC driver (InstaSPIN™-FAN) 1.65 to 5.5V 3.3, 5
DRV10963 5V 3-phase sinusoidal sensor-less BLDC driver (InstaSPIN™-FAN) 2.1 to 5.5V 3.3, 5
DRV11873 12V 3-phase sensor-less BLDC driver (InstaSPIN™-FAN) 5 to 16V 3.3, 5
BLDC Fan Motor Pre-Drivers
Part Number
Description
Voltage
IOUT (mA)
TMP814 1-phase full-wave sensored BLDC fan motor pre-driver 6 to 16V Ext FETs
TMP815 1-phase full-wave sensored BLDC fan motor pre-driver 6 to 16V Ext FETs
TMP816 1-phase full-wave sensored BLDC fan motor pre-driver 6 to 16V Ext FETs
TMP821 2-phase half-wave sensored BLDC fan motor pre-driver 6 to 16V Ext FETs