Motor Drive and Control

Delivering MORE Together

Mini-Summit Training Series

Training Agenda

• Intro to the Motor

• H-Bridge Basics

• Motors Driver Prodcut

DRV88182.5A Stepper Motor Driver with On-Chip 1/8 Micro-stepping Indexer

Applications• Bipolar Stepper Motor

9.7 x 6.4mm, 28-pin

HTSSOP package

In Production

1K Pricing: $2.40

Features• Dual H-Bridge motor driver

• Supply voltage: 8 to 35V

• Output current: 1.75A RMS / 2.5A peak

• Low RDSON FETs 0.37-Ω (HS + LS); P2P with DRV8811

• On-chip indexer emulates sine-wave in quadrature,

supporting up to 1/8 micro-stepping

• Slow, fast and mixed decay with adjustable decay ratio

and fixed off time current regulation

• Integrated protection features including over-current,

thermal, shoot-through and UVLO protection.

Benefits• Wide supply range supports industry standard supplies

and high output current delivers maximum performance.

• Improved thermal performance; Scalable current options

• Constant torque operation without support from the

system controller.

• Smoother, quieter microstepping motion profiles;

little processor support needed.

• Advanced on-chip protection reduces design

complexity and enables higher system reliability

Controller

8 to 35V

DRV8818

Motor Driver

3 to 5.5V

Step / Direction

Step size M

Roadmap

1/8 u-steps

DRV8818: Stepper Motor Driver with 1/8 micro-stepping

1.7A continuous

2.5A peak

+8V to +35V

Micro-stepping

up to 1/8-step

+3V to +5.5Vvcc

VM

Step/Direction control

with built in indexer

Itrip =

Vref / (Gain*Rsense)

Adjustable PWM

blanking and off time

Slow, fast, or mixed decay

(Fixed time off regulation)

Adjustable decay ratio

DRV8818 vs. Allegro‟s A3979, Rohm‟s BD63860

Competitive Comparison

Specification DRV8818 BD63860 A3977 A3979 LV8731V

Rdson, typical 0.37 Ω HS+LS 0.80 Ω HS+LS 0.81 Ω HS+LS 0.50 Ω HS+LS 0.55Ω (at 2A)

Operating

Voltage(s)

Vm - 8 to 35V Vm - 16 to 28V Vm - 8 to 35V Vm - 8 to 35V 32V

Vcc - 3 to 5.5V Vcc - 3 to 5.5V Vcc - 3 to 5.5V Vcc - 3 to 5.5V 9～32V

Thermal

ComparisonRuns Cooler! Runs hotter Runs hotter Runs hotter Runs hotter

Sleep Current3.5uA, typical 400uA, typical typical not stated typical not stated typical not stated

40uA max 2mA max 20uA max 20uA max 50uA max

Micro-steppingfull-, half-, quarter-,

and eighth-step

full-, half-, quarter-,

and eighth-step

full-, half-, quarter-,

and eighth-step

full-, half-, quarter-,

and sixteenth-step

full-, half-, quarter-,

and eighth-, sixteen

step

ProtectionOCP, OTS, UVLO,

cross-conduction

OTS, No

OCP,cross-

conduction

OTS, UVLO, No

OCP,cross-

conduction

OTS, UVLO, No

OCP,cross-

conduction

OTS, No OCP,

Short Circle

Protector (Latch or

Reset function)

Package(s) 28-HTSSOP (P2P) 28-HTSSOP (P2P) 28-HTSSOP (P2P) 28-HTSSOP (P2P)SSOP44K

15.0×7.6×1.7mm

Cost $2.40 @ 1ku $3.75 @ 1ku $2.95 @ 1ku $4.00 @ 1ku 25RMB

Replacement

Code

Q: SAME FUNCTIONALITY AND PINOUT but NOT an exact

equivalent.

Two interface can

selection

Greater than 30% temperature reduction

Pin to pin compatible drops into existing layout

DRV8818 - The Coolest 2.5A

Microstepping Motor Driver

TI - DRV8818 Rohm Allegro

Max Temp 157°CMax Temp 130°CMax Temp 107°C

2.5A sine wave peak, 1/8 micro-stepping, 2-layer board

Roadmap

Replacement – DRV8812 vs. L6219&2916

Features DRV8812 ST L6219/UDN2916 (Allegro)

Supply Voltage 8.2V – 47V 8V - 50V

Continuous current 1A 0.75A

Peak Current About 1.6A 1A

Motor Support Stepper Stepper

Micro-stepping ¼ micro-steps, with an external

reference can support up to 256 microsteps

½ Micro-steps

Decay Modes Slow, Fast & Mixed RC setup

Current Regulation Yes Yes

RDSON (LS+HS) 0.65 ohm DMOS technology 0.7/1.3V (Vcesat)

Bipolar technology

Package Size HTSSOP-28

Rja=40C/W

DIP-24.SOP-24

Rja=75 C/W

Operating Ambient Temp -40C to 85C -20C to 85C

Protection circuitry Thermal, UVLO, Cross Conduction,

and short circuit

Thermal / X-Conduction

1K Price Low than 6219/2916 Expensive

L6219 or 2916 is very popular in China industry, printer, surveillance

etc market, we can quote a competitive price to replace it by DRV8812.Merits of TI Part over

competition

DC motor driving challenge

• Speed control

• Dead Time control

• Over current protection

• Hot plug and current limit

• Brake control

• Efficiency• External components counting

• Thermal performance n protection

• Current Driving capability

• Voltage range

• Interface

Stepper motor driving challenge

• Device driving

• Step resolution ( angle resolution )

• Current control capability

• Noise

• Speed

• Block detection

• IC usage

• Interface

• Current range

• Voltage range

• Thermal

• Flexibility for Bipolar and Unipolar

• Flexibility for higher porformance

BLDC sensor motor driving challenge

• Common

• Max speed capability

• Control scheme SIN/TRA

• Efficiency

• Voltage range

• Current capability

• Dynamic response

• Sensorless

• Start up rate

• Slow speed handling

Charge

Pump

20

transistors

VMVCP

VM

-

Power-up

Reset

10 trans.

Clock

Oscillator

15 trans.

Linear

Reg

15

transistors

VGDVMLinear

Reg

15

transistors

VDD

+3.3V

HS pre-drive

30 trans

VCP

I

Limit

+

-

Digital

Logic

5,000

gates

Temperature

sense

10 trans.

LS pre-drive

30 trans.

VCP

VMVM

VM

HS pre-drive

30 trans.

LS pre-drive

30 trans.

Amp

OUT1

OUT2

VREF

VPROPI

VDD

FAULT

OCP

OCP

Comp

Op-

amp

„I can do this discretely, I do not need an

integrated driver‟

For equivalent functionality, need > 100 transistors, digital gates, 2 amplifiers

2 LDO’s and temperature sensors. Also note costly fuse which would need to be

used if OCP circuit not implemented

Note fuse to prevent OC

H-BridgeHalf-bridge – When two transistors are connected in a totem-pole arrangement as shown below, they are said to be in a half-bridge configuration. By turning each transistor on and off in a complimentary fashion, the half-bridge can drive the load voltage alternately high and low to produce a PWM waveform at the motor terminal.

motor

Inverter

V+

GND

DC

Bu

s

V+

+_

A

B

A

B

CarrierMod

Motor

H-Bridge(Dead-Time not shown)

V+

PWM

Blue Waveform – Motor VoltageRed Waveform – Filtered motor voltage

Center-Aligned PWMsPWM Generation Simple Indication

• efficiency

• waveform

• filtering structure

• frequency setting

Dead-Time

Top transistor

Bottom transistor

ONON ON

ONON

Dead-Time

With a half-bridge power structure, you must make sure that the bottom transistor and the top transistor NEVER get turned on at the same time.

Doing so will result in large currents flowing through the transistor pair, as a short is created across the DC bus. This condition is called shoot-through.

Current with Correction Disabled

Example of Dead-time Distortion

H-Bridge: Bidirectional Current Control

VM

AH

AL

BH

BL

VM

AH

AL

BH

BL

The H-Bridge / motor driver amplifies the control signals to the proper voltage

and current level required to drive the motor.

Applied motor voltage may be PWMed (chopped) or continuous.

PWMing is a very efficient way to apply a voltage

Critical Points:

Room Temp

RDSON: FET “On”

ResistanceVBB

So

urce

RD

SO

N

Sin

kR

DS

ON

RDSON is the dominant factor in a Driver‟s efficiency

– Switching losses are the other major factor

RDSON is a major factor in a Driver‟s thermal performance

– Package and board layout are the others

RDSON increases over temperature

Critical Points:

VM

Normal Operation(PWM Voltage On)

Asynchronous vs. Synchronous

Decay

Asynchronous Decay(PWM Voltage Off)

VM

Asynchronous Decay:• Recirculation current “Free Wheels” through the body diodes. Power loss = I x 2VD

Synchronous Decay:

• Recirculation current flows through the FETs

•.Power loss = I2 x (2xRDSON) and is typically lower than Asynchronous decay.

• There are several types of synchronous decay modes: Fast, Slow, and Mixed

Synchronous Decay(PWM Voltage Off)

VM

Decay Mode Performance Tradeoffs

Slow Decay

VM

Fast Decay

VM

Mode Current

Decay

Torque

Ripple/

Audible

Noise

Voltage

to the load

Control when winding

current is decreasing

Slow Decay Slow Good Higher OK

Fast Decay Fast Poor Lower Better

Mixed Decay Mode: The best of Both?

Stepper Winding CurrentCurrent Mode Profiles

Critical Points:

Mixed decay: % of the decay cycle is fast decay followed by slow decay

Fast and slow decay ratio may be programmable depending on the driver

Mixed decay is ideally suited for micro-stepping

Current Recirculation: Fast Decay Mode

• Current flowing through the motor winding will be working against the full supply voltage, plus two diode drops.

• Current decays quickly.

Current Recirculation: Slow Decay Mode

• Current re-circulates through power MOSFETs presenting a resistive path to the current

• Current decays slower (directly proportional to the LR)

Fast Decay ( DC Motor Stop )

Phase Current

Enable Signal

Phase Voltage

Mixed Decay Mode: The best of Both?

• The idea behind mixed decay mode is to provide faster decay than slow, but slower than fast.

• FET switching is coordinated so that Fast Decay mode is engaged for a fixed period of time, followed by slow decay mode

• Mixed decay mode is necessary for reliable micro-stepping

Normal Operation

Brushed DC Motors: Dynamic BrakingVM

(+) VBB (-)

BrakingBEMF Stops Motor

VM

(-) BEMF (+)

Stepper Winding CurrentCurrent Mode Profiles

By shorting the motor leads, you allow the Back EMF voltage to drive current in the

opposite direction of the supply current, quickly bringing the motor to a stop.

The energy of the motor is dissipated by the “resistive load”

Critical Points:

(-) BEMF (+)

VM > BEMF

DC Motor BRAKE

RM

LM

BEMF

IG

RDSON * 2VS

RM

LM

BEMF VS

IM

L di/dt = 0

DISABLEMENT

OCCURS

Current in the winding

decays in a few micro

seconds.

Motor becomes a Generator

and pushes current in the

opposing direction.

Slow Decay ( DC Motor Brake )

Phase Current

Enable Signal

Phase Voltage

Phase / Enable Interface

ENABLE PHASE ½ Bridge A ½ Bridge B

L L

L

L

H

H

H

H VM

VM

GND

HIZ

HIZ HIZ

HIZ

GND

Critical Points:

Enable signal turns on or off the entire H-Bridge

Phase signal selects which set of opposite high side / low side FETs are turned on

Single PWM signal can control speed and/or direction.(PWM the Phase Pin)

A_Low

A_High

B_High

B_Low

ENABLE

PHASE

VM

M

H

H

LO

GIC

Indexer Interface

Critical Points:

Direction signal sets rotation direction (clock wise / counter clockwise)

Every time you pulse the step pin, motor advances / retracts 1 step. Stepper speed is

directly proportional to the step pin pulse frequency.

On-Chip indexer automatically calculates the correct current levels to support u-stepping

Step

Direction

VM

M

Ind

exe

r

uStep

Config

On-Chip Look up Table

PWM Interface

Critical Points:

Each Half Bridge can be controlled independently

Bridge logic can vary from device to device

Requires 2 control signals to control speed / direction

PWM I/F

Example #1

H-Bridge Logic

PWM

1

PWM

2

OU

T1

OUT

2

0 0 Z Z

0 1 L H

1 0 H L

1 1 H H

PWM I/F

Example #2

H-Bridge Logic

PW

M1

PW

M2

OUT

1

OUT

2

0 0 L L

0 1 L H

1 0 H L

1 1 H H

VM

LO

GIC

PWM1 PWM2

M

LO

GIC

Two Most Common Microstepping

Methods

MSP430 DRV8812

Bridge A

Bridge B

ENABLE_A

PHASE_A

VREF_A

ENABLE_B

PHASE_B

VREF_B

External Reference

DRV8811

Bridge A

Bridge B

STEP

DIRECTION

VREF_AB

On-chipIndexer

Microstepping via on-chip indexer

DRV8811, 8818, 8821, 8824, & 8825 have on-chip indexers

No external MCU required for microstepping

uStepping level limited to on-chip indexer support

Microstepping via modulating VrefM

SP

430

F1612

DRV8812

ENABLE A

ENABLE B

PHASE A

PHASE B

VREF A

VREF B

DAC0

DAC1

DRV8812, 8813, 8828, 8829, 8841, 8842, & 8843 support Vref microstepping

Requires external MCU / DAC support for microstepping

Supports high step level microstepping (I.E. 128 or 256)

App Note:

PHASE

VREF

Winding Current

Download SLVA416 @ www.ti.com today!!!

Protection Circuits

Current Regulation

Why do you need Current Regulation?

Stepper Motors:

• Winding resistance is very low

• Very little back EMF

• Maintain holding current

Brushed / Brushless DC:

•Needed to limit stall / start up currents

Time OFF

Time ON

Understanding TBLANK (DRV88xx)

ITRIP

TBLANK TBLANK TBLANK

Stepper Winding CurrentCurrent Mode Profiles

At the beginning of each PWM cycle, a TBLANK period is inserted to filter out spurious

current spikes present as parasitic capacitances are charged, preventing false trips.

TBLANK varies depending on the part (~ 1.2 to 3.75us) and on some devices it can be

configured by the selection of external components

Critical Points:

False itripavoided

Over Current Protection (OCP)

CU

RR

EN

T

TIME

VM/RDS(ON)

Without OCP:

Current rises to

destructive levels

• Designed to protect the device from damage in the event of a fault in the motor or wiring,

such as a short to ground, power, or across the winding.

• Each power FET is protected individually, so protected against shorts to any other signal

• Protection must be quick enough to prevent damage but not trigger on false trips. Body

diodes must be robust enough to handle shorts.

• Can be a latched or auto-recovery. Some devices alert the system MCU via a Fault pin

on an OCP event.

POOF!

CU

RR

EN

T

TIME

IOCP

TOCP

With OCP: Current

is limited, then

driver turns off

Configuring Itrip

SENSE

REFTRIP

RGAIN

VI

Amp

VREF

Winding Current

In Volts (V)

Reference Voltage

IMAX

To H Bridge Enable

RSENSE

M

Low Side Current Sensing

OCP Implementation – Analog (DRV88xx)

Ovecurrent Detect

Analog Ilimit

OVERCURRENT

(to digital)

OUTPUT

FET

AMP

+

-

AMP

+

-

PRE_DRIVE

COMP

+

- VREF

OUT

VM

HS_ON

(from digital)

Analog OCP implementation (high side shown)

Coupled

Stepper Winding CurrentCurrent Mode Profiles

Two analog components of OCP:

- An analog current limit removes gate drive to the power FET to prevent very high

currents from damaging the device (ILIMIT)

- An overcurrent detection circuit monitors the current and provides an overcurrent

signal to the digital core if the current exceeds IOCP

Critical Points:

Dead Short on DRV88xx

Short circuit occurs

Analog current limit reduces current to ~ 9A

in about ~ 400ns

After a deglitch of ~ 3uS, outputs are tri-

stated

Enable pin

Winding current

Fault Pin

Current Regulation Example

Current limited to less

than stall current

Motor reaches

full speed

Startup (stall) current

over 14 amps!

Motor startup with current controlMotor startup without current control

Using current control with a DC brushed motor can allow you to limit

the high starting current, and use a motor driver IC that is rated for less

current than the stall current of the motor

Thermal Protection

• Multiple thermal sensors are placed across the die, continuously

monitoring temperature. When temperature reaches over temp,

the H Bridge is tri-stated.

• Fault can be latched or auto-recovery. Some devices alert the system MCU

via a fault pin on an over temp event.

• Some devices have 2-stage thermal protection, providing a warning (fault

flag) prior to shutting the device down.

170

C

150

C

120

C

80

C

50

C

25

C

Normal Operation TSD

Temperature

Undervoltage/Cross Conduction Protection

• Undervoltage protection

– Supply voltage level is constantly monitored and the device is tri-stated when the voltage level is too low to ensure proper control over the H-Bridge

• Shoot-through Protection

– High side and low side are never allowed to turn on at the same time. A small amount of delay (dead time) is inserted after turning off the high side and turning on the low side. The longer the dead-time, the safer the operation but the worse the linearity and efficiency.

VBB

AH

AL

BH

BL

Shoot–through!!

Stepper Motor Drivers

P2P CompatibleProduction Sampling

FEATUREDPRODUCTS

High current / performance

DRV8412(6A @ 0 – 50V)

DRV8432(12A @ 0 – 50V)

High Current / High Performance

Up to 500kHz PWM

Up to 97% Efficient

C2000, MSP430, ARM MCU Kits

Up to 32-steps (indexers)

DRV8811(1.9A @ 8 to 38V)

1/8 -ustep

DRV8818(2.5A @ 8 to 35V)

1/8 -ustep

DRV8824(1.6A @ 8.2 to 45V)

1/32-ustep

DRV8825(2.5A @ 8.2 to 45V)

1/32-ustep

No MCU needed for stepping

On-chip current regulation

> 32-steps w/ MCU support

DRV8812(1.6A @ 8.2 – 45V)

DRV8813(2.5A @ 8.2 – 45V)

MCU needed for stepping

0 to > 256 stepping supported

On-chip current regulation

Low Voltage Steppers

DRV8833(2A @ 2.7 – 10.8V)

Full and half step

DRV8834(2A @ 2.5 – 10.8V)

1/32-ustep

Battery power target apps

Low sleep currents

8834 has 32-step indexer

Brushed DC Motor Drivers

P2P Compatible

FEATUREDPRODUCTS

High Current / performance

DRV8412(12A @ 0 – 50V)

Single or Dual

DRV8432(24A @ 0 – 50V)

Single or Dual

Dual & Quad

Brushed

DRV8802(1.6A @ 8.2 – 45V)

Dual Brushed

DRV8814(2.5A @ 8.2 – 45V)

Dual Brushed

DRV8823(1.5A @ 8– 32V)

Quad Brushed

Single Brushed

DRV8800(2.2A @ 8 – 36V)

DRV8840(5A @ 8.2– 45V)

Low Voltage Brushed

DRV8832(1A @ 2.75 – 6.8V)

Voltage regulation

DRV8833(4A @ 2.7 – 10.8V)

Production Sampling

High Current / High Performance

Up to 500kHz PWM

Up to 97% Efficient

C2000, MSP430, ARM MCU Kits

Battery power target apps

Low sleep currents

8832 Voltage regulation extends

battery life/maintains speed

Single , Dual, and Quad Options

Brake Support; Sync Rectification

Brushless DC Motor DriversFEATUREDPRODUCTS

High current / performance

Integrated drivers

DRV8312(6.5A @ 0 – 50V)

DRV8332(13A @ 0 – 50V)

3-Phase pre-drivers

DRV8301(60A / 60V / SPI Ctrl)

Buck + 2x Sense Amps

DRV8302(60A / 60V / HW Ctrl)

Buck + 2x Sense Amps

Production Sampling

High Current / High Performance

Up to 500kHz PWM

As low as 5ns dead time

C2000, MSP430, ARM Kits

Drive external FETs up to 60A

Integrates 1.5A buck and 2x amps

C2000, MSP430, ARM MCU Kits

Drives brushed DC motors also!

Brushed DC Motor Drivers

Part

NumberStatus

# of

Motors

Voltage

Range (V)

Cont/Peak

Current (A)

RDSON

(mΩ)

Inrush

Protection1K Comments

Phase Enable Control I/F

DRV8800 Released 1 8 - 36 1.5 / 2.2 480/350 Limited $1.25 P2P with Allegro A3950

DRV8801 Released 1 8 - 36 1.5 / 2.2 480/350 Limited $1.25DRV8800 w/ current sense

output

DRV8802 Released 1 8 - 45 1.1 / 1.6 630/650 Yes $1.65 DRV8812 with brake

DRV8814 Released 2 8.2 - 45 1.75 / 2.5 200/200 Yes $2.25 DRV8813 with brake

DRV8840 Released 1 8.2 - 45 3.5 / 5.0 100/100 Yes $2.25 DRV8829 with brake

Serial Control I/F

DRV8830 Released 1 2.75 – 6.0 1.0 / 1.0 250/200 Yes $0.85 64 level Voltage Reg / I2C

PWM Control I/F

DRV8832 Released 1 2.75 - 6.0 1.0 / 1.0 250/200 Yes $0.85 Voltage Regulation

DRV8833 Released 2 2.7 - 10.8 1.5 / 2.0 200/160 Yes $0.95 2x Brushed

1 2.7 - 10.8 3.0 / 4.0 100/80 Yes $0.95 1x Brushed / Paralleled

DRV8841 Released 2 8.2 - 45 1.75 / 2.5 200/200 Yes $2.25 Independent ½-H control

DRV8842 Released 1 8.2- 45 3.5 / 5.0 100/100 Yes $2.25 Independent ½-H control

DRV8843 Released 1 8 .2- 45 1.75 / 2.5 200/200 Yes $2.25 Independent ½-H control

Stepper Motor DriversPart

NumberStatus

# of

Motors

Voltage

Range (V)

Cont/Peak

Current (A)

RDSON

(mΩ)

Current

Levels1K Comments

Indexer Control I/F

DRV8805 Released 1 8.2 to 60 1A/2A 500 - $1.50Quad Low Side Driver for Unipolar

Steppers. Wave, Full, and Half

step

DRV8811 Released 1 8 - 38 1.4 / 1.9 500/5008x

-steps$1.80

Fixed off time with adjustable

mixed decay %’s. P2P with Allegro

A3977; A3979 & Rohm BD63860

DRV8818 Released 1 8 - 35 1. 75 / 2.5 150/2208x

-steps$2.40

Lower RDSON version of 8811.

P2P with Allegro A3977, A3979 &

Rohm BD63860

DRV8821 Released 2 8 - 32 1.5 / 1.5 250/3008x

-steps$2.00

DRV8824 Released 1 8.2 - 45 1.1 / 1.6 630/65032x

-steps$1.65 P2P with DRV8825

DRV8825 Released 1 8.2 - 45 1.75 / 2.5 200/20032x

-steps$2.40

Lower RDSON version of 8824

Phase Enable Control I/F

DRV8812 Released 1 8.2 - 45 1.1 / 1.6 630/650 4x $1.65 > 4 Micro-step with external DAC

DRV8813 Released 1 8.2 - 45 1.75 / 2.5 200/200 4x $2.25 > 4 Micro-step with external DAC

DRV8828 Released ½ 8.2 - 45 2.1 / 3.0 320/330 32x $1.65 > 32 Micro-step with external DAC

DRV8829 Released ½ 8.2 - 45 3.5 / 5.0 100/100 32x $2.25 > 32 Micro-step with external DAC

Stepper Motor Drivers Continued

Part

NumberStatus

# of

Motors

Voltage

Range (V)

Cont/Peak

Current (A)

RDSON

(mΩ)

Current

Levels1K Comments

Serial Control I/F

DRV8823 Released 2 8 - 32 1.5 / 1.5A 250/300 8x $2.00 SPI Control bus

DRV8804 Released 1 8.2 to 60 1A/2A 500 - $1.450Quad Low Side Driver for

Unipolar Steppers. Wave, Full,

and Half step

PWM Control I/F

DRV8803 Released 1 8.2 to 60 800mA 500 - $1.40Quad Low Side Driver for

Unipolar Steppers.

DRV8833 Released 1 2.7 - 10.8 1.5 / 2.0 200/160 1x $0.95Dual 2A H-Bridge / Full and ½

Step modes

DRV8841 Released 1 8.2 – 45 1.75 / 2.5 200/200 4x $2.25 Independent ½-H control

DRV8842 Released ½ 8.2- 45 3.5 / 5.0 100/100 32x $2.25 Independent ½-H control

DRV8412 Released 1 0 - 52 3.0 / 6.0 110/110 None $3.85No heatsink : Needs +12V

Gate Drive Supply

DRV8432 Released 1 0 - 52 7.0 / 12.0 110/110 None $5.50Heatsink required : Needs

+12V Gate Drive Supply

Solenoid Drivers

Part

NumberStatus

# of

Solenoids

Voltage

Range (V)

Cont/Peak

Current (A)

RDSON

(mΩ)

Current

Levels1K Comments

PWM Control I/F

DRV8832 Released 2 2.75 – 6.0 1.0 / 1.0 250/200 1x $0.85 PWM voltage regulation

DRV8833 Released 4 2.7 - 10.8 1.5 / 2.0 200/160 1x $0.95 Dual 2.0A H-Bridge

DRV8841 Released 4 8.2 – 45 1.75 / 2.5 200/200 4x $2.25 Independent ½-H control

DRV8842 Released 2 8.2– 45 3.5 / 5.0 200/200 32x $2.25 Independent ½-H control

DRV8803 Released 4 8.2– 60 1A/2A 500 - $1.40Quad Low Side Driver with

integrated freewheel diodes.

PWM Ctrl Interface

DRV8804 Released 4 8.2– 60 1A/2A 500 - $1.40Quad Low Side Driver with

integrated freewheel diodes.

Serial Control Interface

DRV8844 Released 2 8.2– 60 1A/2A 250 - $1.40 DQuad half bridge

3-Phase Motor Controllers/Drivers

Part

NumberStatus

# of

Motors

Voltage

Range

Cont/Peak

Current

RDSON

(mΩ)1K Comments

PWM Control I/F

DRV8312 Released 1 0 - 52V 3.5 / 6.5A 110/110 $3.30No heatsink : Needs +12V Gate

Drive Supply

DRV8332 Released 1 0 - 52V 8 / 13A 110/110 $4.70Heatsink required : Needs +12V

Gate Drive Supply

DRV8301 Released 1 8 - 60V1.7A

Pre-driverN/A $2.50

Pre-driver w/ 1.5A buck & 2x

current sense amps (SPI Mgmt

I/F)

DRV8302 Released 1 8 - 60V1.7A

Pre-driverN/A $2.50

Pre-driver w/ 1.5A buck & 2x

current sense amps (Hardware

Mgmt I/F)

TI‟s DRV8x Motor Drivers and Kits / EVMs

Stepper Drivers

Brushed DC Drivers

• 2.0V to 50V; Up to 24A

• ControlCARD MCU support options

• Easy to use GUIs & Source code provided

3-Phase Brushless

• 8 to 60V; Up to 13A; Pre-Drivers support

up to 60A; Integrated current sense amps /

buck

•Trapezoidal, FOC, Sensored &

Sensorless Control Options

• ControlCARD MCU support options

• Easy to use GUIs & source code provided

FEATUREDPRODUCTS

• 2.0V to 60V; up to 12A operation

• Support for up to 512 microsteps

• Easy to use GUIs & source code provided

DRV8x Family Features

Embedded Intelligence

• Minimal MCU support required

• Basic to advanced commutation engines

• Digital control loops

Robust, Reliable & Fully Protected

• Over current / Short circuit protection

• Thermal protection

• Under voltage lock out

• Shoot-through protection

FullyIntegrated Solution

• Reduced Board Space / BOM

• Improved Reliability

• No discrete design experience

needed. Just drop in and spin.

CU

RR

EN

T

TIME

IOCP

TOCP

With OCP: Current

is limited, then

driver turns off

Bigger manufacturing footprint U.S., Asia and Europe

Freising

TexasDallasRichardsonSherman

AguascalientesPhilippinesBaguio CityPampangaMalaysia

Kuala LumpurMelaka

Taipei

JapanAizuMiho

Chengdu

Portland

Greenock

NEW!

11 wafer fabs

7 assembly/test sites

3 bump facilities

NEW!

NEW!

For More Information:Motor Solutions Home Page: www.ti.com/motor

Questions?