Motor Drive & Control

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DRV8x 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

Stepper Motors

Mid-voltage Stepper Drivers
Part Number	Description	Voltage	Ctrl I/F
DRV8412	3A High-performance Stepper Driver	0 to 52V	PWM
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

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)	8 to 60V	PWM
DRV8302	3-phase Pre-driver with 1.5A Step-down Voltage Regulator and Dual Current Sense Amplifiers (H/W Control)	8 to 60V	PWM
DRV8312	6.5A High Performance 3-phase Driver	0 to 52V	PWM
DRV8332	13A High Performance 3-phase Driver	0 to 52V	PWM