Motor Drive and Control

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1 Delivering MORE Together Mini-Summit Training Series Motor Drive and Control

2 Training Agenda Intro to the Motor Market H-Bridge Basics DRV8x Motors Driver

3 24V Motor Sample Application Printers STP:Sheet Feeder / Scanner DCM:Paper Cutter, Stapler, Sheet Lifter ATM / Cash Resistor STP:Bill / Receipt Sender, Receipt Printer Head DCM:Paper Cutter, Cover Opener Sewing Machine STP: Textile Feeder Thread / Needle Vending Machine STP:Feeder (Ticket, Drink) DCM:Feeder (Bill Senders are supplied as a Module) Slot Machine STP:Reel Rotator DCM:Coin Hopper (Bill Senders are supplied as a Module) Time Recorder DCM:Card Feeder Printer Head Automation STP:Robot

4 3 to 15V Motor Sample Application Label Printer STP:Paper Feeder DCM:Paper Cutter Projector STP:Auto Focus Zoom, Iris, Lens shift Toy R/C, Toy Robot STP:Joint Control DCM:Drive / Wheel Control Security Camera STP:Lends AF, Zoom, Tilt Vacuum Cleaner DCM:Auto Filter Cleaner Air Conditioner STP:Auto Filter Cleaner Refrigerator STP:Flow Adjuster DCM:Ice Maker POS / Card Terminal STP:Paper Feeder DCM:Paper Cutter (Cash Drawers are supplied as a Module)

5 I can do this discretely, I do not need an VM integrated driver Note fuse to prevent OC VM VDD VCP VM VM +3.3V VCP VDD Charge Pump 20 transistors Linear Reg 15 transistors VM Temperature sense 10 trans. Power-up Reset 10 trans. Clock Oscillator 15 trans. Linear Reg 15 transistors VGD Digital Logic 5,000 gates HS pre-drive 30 trans LS pre-drive 30 trans. VCP HS pre-drive 30 trans. OCP VM OCP OUT1 OUT2 VREF Opamp Amp + I Limit - Comp LS pre-drive 30 trans. VPROPI FAULT 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

6 H-Bridge: Bidirectional Current Control VM VM AH BH AH BH AL BL AL BL Critical Points: 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

7 RDSON: FET On Resistance Sink RDSON VBB Source RDSON Room Temp Critical Points: 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

PWM Switching Frequency 20 KHz Max Freq Audible Switching Losses Run Smoothness ENABLE Switching PWM Frequency Critical Points: The higher the PWM frequency, the less torque ripple

8 PWM Switching Frequency 20 KHz Max Freq Audible Switching Losses Run Smoothness ENABLE Switching PWM Frequency Critical Points: The higher the PWM frequency, the less torque ripple and smoother the motion profile Ideally, PWM frequency should be above 20 KHz to avoid audible noise. But The higher the frequency, the higher the switching losses at the H-Bridge.

9 Inductive Recirculation Currents Recirculation currents Applied PWM Motor Voltage Motor Current Note the slope of the ripple Critical Points: Motor s are highly inductive and inductors do not like changes in current When the PWM voltage is off, current continues to flow due to the inductor Slope of the ripple affect motor performance (torque ripple, noise, power, etc)

10 Asynchronous vs. Synchronous Decay VM VM VM Normal Operation (PWM Voltage On) Asynchronous Decay (PWM Voltage Off) Synchronous Decay (PWM Voltage Off) Asynchronous Decay: Recirculation current Free Wheels through the body diodes. Power loss = I x 2V D Synchronous Decay: Recirculation current flows through the FETs.Power loss = I 2 x (2xRDSON) and is typically lower than Asynchronous decay. There are several types of synchronous decay modes: Fast, Slow, and Mixed

11 Decay Mode Performance Tradeoffs VM VM Slow Decay Fast Decay 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

12 Mixed Decay Mode: The best of Both? 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 Mode Profiles Stepper Winding Current

13 Current Decay Modes during Microstepping PHASE DECAY Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Ix Increases Ix Decreases Ix Increases Ix Decreases Slow Decay Fast or Mixed Decay Slow Decay Fast or Mixed Decay Embedding a Sine Wave on the current requires the manipulation of the current decay modes in order to avoid wave shape distortion. During charge up, the current can decay slowly as charging an inductor is easy. During discharge, current decay must be set to mixed or fast as discharging an inductor is harder than charging.

14 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 ON Time OFF

15 Configuring Itrip M I TRIP VREF GAIN R SENSE R SENSE Amp Winding Current In Volts (V) I MAX Reference Voltage VREF To H Bridge Enable Low Side Current Sensing

16 Understanding TBLANK (DRV88xx) False itrip avoided TBLANK TBLANK TBLANK ITRIP Critical Points: 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 Current Mode Profiles Stepper Winding Current

17 Protection Circuits

18 Types of Protection Circuits 1. Over current protection 2. Over temperature protection 3. Under-voltage protection 4. Shoot-through protection

19 Over Current Protection (OCP) VM/R DS(ON) CURRENT POOF! Without OCP: Current rises to destructive levels I OCP CURRENT With OCP: Current is limited, then driver turns off TIME TIME 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. T OCP

20 OCP Implementation Analog (DRV88xx) OVERCURRENT (to digital) COMP + - VREF Ovecurrent Detect + AMP - VM HS_ON (from digital) PRE_DRIVE Coupled OUTPUT FET + AMP - OUT Analog Ilimit Critical Points: Analog OCP implementation (high side shown) 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 Current Mode Profiles Stepper Winding Current

21 Dead Short on DRV88xx Analog current limit reduces current to ~ 9A in about ~ 400ns Fault Pin Winding current Short circuit occurs After a deglitch of ~ 3uS, outputs are tristated Enable pin

22 Thermal Protection Normal Operation TSD 25 C 50 C Multiple thermal sensors are placed across the die, continuously monitoring temperature. When temperature reaches over temp, the H Bridge is tri-stated. 80 C Fault can be latched or auto-recovery. Some devices alert the system MCU via a fault pin on an over temp event. 120 C Temperature 150 C 170 C Some devices have 2-stage thermal protection, providing a warning (fault flag) prior to shutting the device down.

23 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 BH AL BL Shoot through!!

24 Control Interfaces

25 LOGIC Phase / Enable Interface B_High VM ENABLE PHASE ½ Bridge A ½ Bridge B H H ENABLE PHASE A_High A_Low B_Low M L L H H L H L H HIZ HIZ GND VM HIZ HIZ VM 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)

26 Indexer Indexer Interface VM Step Direction M ustep Config Critical Points: Direction signal sets rotation direction (clock wise / counter clockwise) On-Chip Look up Table 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

27 LOGIC LOGIC PWM Interface VM PWM1 M PWM2 PWM I/F Example #1 H-Bridge Logic PWM1 PWM2 OUT1 OUT2 0 0 Z Z 0 1 L H 1 0 H L 1 1 H H Critical Points: PWM I/F Example #2 H-Bridge Logic PWM1 PWM2 OUT1 OUT2 0 0 L L 0 1 L H 1 0 H L 1 1 H H Each Half Bridge can be controlled independently Bridge logic can vary from device to device Requires 2 control signals to control speed / direction

28 Two Most Common Microstepping Methods On-chip Indexer STEP DIRECTION VREF_AB DRV8811 Bridge A Bridge B External Reference MSP430 ENABLE_A PHASE_A VREF_A ENABLE_B PHASE_B DRV8812 Bridge A Bridge B VREF_B

29 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

30 MSP430F1612 Microstepping via modulating Vref ENABLE A ENABLE B Winding Current PHASE A PHASE B DRV8812 VREF DAC0 DAC1 VREF A VREF B PHASE 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: Download today!!!

31 DRV8x Road map Motor Type Stepper Brushed 3-Phase Low Voltage DRV8313 DRV8815 DRV8817 Driver : A (8.2 to 45V) Controller + Driver: 8815/17 3A (8815) / 4.8A (8817) (8 to 32V) Sine or Trap Control DRV8844 Brushed DC: A (8.0 to 60V) Split Rail Support DRV8834 Stepper Driver 2A (2.5 to 10.8V) 1/32-step indexer DRV8835 DRV8836 DRV8851 DRV8852 Brushed DC or Stepper Driver 1.5A per Bridge (2 to 7/11V) 200mA LDO (8851/52) DRV8837 DRV8838 Single Brushed DC 1.5A (2 to 7/11V)

FEATURED PRODUCTS TI s DRV8x Motor Drivers and Kits / EVMs Stepper

0V to 60V; up to 12A operation Support for up to 512 microsteps

to 24A ControlCARD MCU support options Easy to use GUIs & Source

support up to 60A; Integrated current sense amps / buck

32 FEATURED PRODUCTS TI s DRV8x Motor Drivers and Kits / EVMs Stepper Drivers 2.0V to 60V; up to 12A operation Support for up to 512 microsteps Easy to use GUIs & source code provided 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

DRV8x Family Features Over current / Short circuit

protection Under voltage lock out IOCP CURRENT With OCP:

protection TIME TOCP Fully Integrated Solution Reduced Board

experience needed. Just drop in and spin.

33 DRV8x Family Features Over current / Short circuit protection Robust, Reliable & Fully Protected Thermal protection Under voltage lock out IOCP CURRENT With OCP: Current is limited, then driver turns off Shoot-through protection TIME TOCP Fully Integrated Solution Reduced Board Space / BOM Improved Reliability No discrete design experience needed. Just drop in and spin. Embedded Intelligence Minimal MCU support required Basic to advanced commutation engines Digital control loops

34 FEATURED PRODUCTS Stepper Motor Drivers DRV V) DRV V) High current / performance DRV to 38V) 1/8 -ustep DRV to 45V) 1/32-ustep DRV to 35V) 1/8 -ustep DRV to 45V) 1/32-ustep High Current / High Performance Up to 500kHz PWM Up to 97% Efficient C2000, MSP430, ARM MCU Kits No MCU needed for stepping On-chip current regulation Up to 32- steps (indexers) DRV V) DRV V) > 32- steps w/ MCU support DRV V) Full and half step DRV V) 1/32-ustep Low Voltage Steppers MCU needed for stepping Battery 0 to > 256 power stepping target apps supported Low On-chip sleep current currents regulation 8834 has 32- step indexer Production Sampling P2P Compatible

FEATURED PRODUCTS Brushed DC Motor Drivers DRV8412 (12A @ 0 50V) Single or Dual DRV8432 (24A @ 0 50V) Single or Dual High Current / performance High Current / High Performance Up to

32V) Quad Brushed DRV8814 (2.5A @ 8.2 45V) Dual Brushed Dual & Quad Brushed C2000, MSP430, ARM MCU Kits Single, Dual, and Quad Options DRV8800 (2.2A @ 8 36V) DRV8832 (1A @ 2.75 6.

35 FEATURED PRODUCTS Brushed DC Motor Drivers DRV V) Single or Dual DRV V) Single or Dual High Current / performance High Current / High Performance Up to 500kHz PWM Up to 97% Efficient DRV V) Dual Brushed DRV V) Quad Brushed DRV V) Dual Brushed Dual & Quad Brushed C2000, MSP430, ARM MCU Kits Single, Dual, and Quad Options DRV V) DRV V) Voltage regulation DRV V) Single Brushed DRV V) Low Voltage Brushed Brake Support; Sync Rectification Battery power target apps Low sleep currents 8832 Voltage regulation extends battery life/maintains speed Production Sampling P2P Compatible

36 FEATURED PRODUCTS Brushless DC Motor Drivers DRV V) DRV V) High current / performance Integrated drivers High Current / High Performance Up to 500kHz PWM As low as 5ns dead time C2000, MSP430, ARM Kits DRV8301 (60A / 60V / SPI Ctrl) Buck + 2x Sense Amps DRV8302 (60A / 60V / HW Ctrl) Buck + 2x Sense Amps 3-Phase pre-drivers Drive external FETs up to 60A Integrates 1.5A buck and 2x amps C2000, MSP430, ARM MCU Kits Drives brushed DC motors also! Production Sampling

37 Stepper Motor Drivers S N S N On Chip Indexers: Up to 32-uSteps DRV8821 DRV8824 P2P DRV8825 DRV8811 P2P New DRV A (8 to 32V) 1/8 ustep Drives 2x Steppers 1.6A (8.2 to 45V) 1/32 ustep 2.5A (8.2 to 45V) 1/32 ustep 1.9A (8 to 38V) 1/8 ustep 2.5A (8 to 35V) 1/8 ustep Mid Current Steppers: > 32-uSteps High Current Steppers: > 32-uSteps DRV8812 P2P DRV8813 DRV8828 P2P DRV8829 DRV A (8.2 to 45V) Phase/Enable Ctrl DRV8841/43 2.5A (8.2 to 45) PWM Ctrl DRV A (8.2 to 45V) Phase/Enable Ctrl DRV A (8 to 32V) SPI Ctrl Drives 2x Steppers 3A (8.2 to 45V) Phase/Enable Ctrl ½ Stepper DRV8412 6A (0 to 52V) 500kHz / 5ns Dead-time PWM Ctrl 5.0A (8.2 to 45V) Phase/Enable Ctrl ½ Stepper DRV A (0 to 52V) 500kHz / 5ns Dead-time PWM Ctrl 5A (8.2 to 45) PWM Ctrl ½ Stepper 2.5A (8.2-60V) Split Rail Support Selection Matrix Production Sampling In Design

38 Low Voltage and Unipolar Motor Drivers Single or Dual Brushed DRV8830 DRV8832 DRV8833 1A (2.75 to 6.8V) Voltage Regulation I2C I/F (up to 9x) 1A (2.75 to 6.8V) Voltage Regulation IN1/IN2 Ctrl Single: 4A (2.7 to 10.8V) Dual: 2 x 2A PWM Ctrl Battery Powered Applications DRV8835/6 Single: 3A (2.0 to 7V / 11V) Dual: 2 x 1.5A PWM or Phase Enable Ctrl Stepper DRV8833 2A (2.7 to 10.8V) Full or half step support PWM Ctrl DRV A (2.0 to 7V / 11V) ½ of DRV8835 PWM Ctrl DRV8834 Indexer 2A (2.5 to 10.8V) 1/32-step indexer Step/Dir Ctrl DRV8835/6 DRV A (2.0 to 7V / 11V) Full or half step support PWM or Phase Enable LDO DRV mA LDO Unipolar Stepper Motor Drivers DRV8803 New DRV8804 New DRV8805 New 4x 1A (8.2 to 60V) 1x 2A PWM Control I/F 4x 1A (8.2 to 60V) 1x 2A SPI Control I/F 4x 1A (8.2 to 60V) 1x 2A On Chip Indexer (Full, half and wave drive) Step/Dir Control I/F Production Sampling In Design

Brushed DC Motor Drivers Single Brushed DRV8800/1 DRV8840 DRV8842 DRV8412 DRV8432 2.2A (8 to 36V) 8801: Current sense pin Phase/Enable Ctrl 5.0A (8.2 to 45V) Inrush Protection Phase/Enable Ctrl 5A (8.

39 Brushed DC Motor Drivers Single Brushed DRV8800/1 DRV8840 DRV8842 DRV8412 DRV A (8 to 36V) 8801: Current sense pin Phase/Enable Ctrl 5.0A (8.2 to 45V) Inrush Protection Phase/Enable Ctrl 5A (8.2 to 45V) Inrush Protection PWM Ctrl 12A (0 to 52V) Inrush Protection PWM Ctrl 24A (0 to 52V) Inrush Protection PWM Ctrl Dual Brushed Quad Brushed DRV8802 P2P DRV8814 DRV8841/43 DRV A (8.2 to 45V) Inrush Protection Phase/Enable Ctrl 2.5A (8.2 to 45V) Inrush Protection Phase/Enable Ctrl 2.5A (8.2 to 45V) Inrush Protection PWM Ctrl 1.5A (8 to 32V) Inrush Protection SPI I/F DRV8412 DRV8432 DRV8844 6A (0 to 52V) Inrush Protection PWM Ctrl 12A (0 to 52V) Inrush Protection PWM Ctrl 2.5A (8.2-60V) Split Rail Support Selection Matrix Production Sampling In Design

3-Phase Brushless Motor Drivers Pre-Drivers New DRV8301/02 1.7A Gate Drive (8 to 60V) 2x current sense amps Integrated Buck DRV8301 (SPI) / 8302 (HW) Integrated Driver DRV8312 6.

40 3-Phase Brushless Motor Drivers Pre-Drivers New DRV8301/02 1.7A Gate Drive (8 to 60V) 2x current sense amps Integrated Buck DRV8301 (SPI) / 8302 (HW) Integrated Driver DRV A (0 to 52V) Up to 97% Efficient 500kHz / 5ns Dead-time DRV A (0 to 52V) Up to 97% Efficient 500kHz / 5ns Dead-time Controller + FETS DRV A (8.2 to 60V) Integrated comparator DRV8815 1Q12 DRV8817 3A (12 to 32V) Integrated speed loop 3x Hall Amps & +5V supply Sine or Trap Control 4.8A (8 to 32V) Integrated speed loop 3x Hall Amps & +5V supply Sine or Trap Control Selection Matrix Production Sampling In Design

Solenoid / Relay Drivers Dual Drivers DRV8830 1A (2.75 to 6V) I2C I/F (up to 9x) DRV8842 DRV8832 1A (2.75 to 6.8V) IN1/IN2 Ctrl DRV8412 DRV8833 DRV8432 New 4A (2.

75 to 10.8V) PWM Ctrl 2.5A (8.2 to 45V) PWM Ctrl 4x 1A (8.2 to 60V) 1x 2A PWM Ctrl 4x 1A (8.

41 Solenoid / Relay Drivers Dual Drivers DRV8830 1A (2.75 to 6V) I2C I/F (up to 9x) DRV8842 DRV8832 1A (2.75 to 6.8V) IN1/IN2 Ctrl DRV8412 DRV8833 DRV8432 New 4A (2.75 to 10.8V) PWM Ctrl 5A (8.2 to 45V) PWM Ctrl 12A (0 to 52V) 24A (0 to 52V) Quad Drivers New New New DRV8833 DRV8841/43 DRV8803 DRV8804 2A (2.75 to 10.8V) PWM Ctrl 2.5A (8.2 to 45V) PWM Ctrl 4x 1A (8.2 to 60V) 1x 2A PWM Ctrl 4x 1A (8.2 to 60V) 1x 2A Serial Ctrl DRV8806 DRV8412 DRV8432 DRV open load Fault Flag 6A (0 to 52V) PWM Ctrl 12A (0 to 52V) PWM Ctrl Selection Matrix Production Sampling In Design In Definition

DRV8x Road map Motor Type Stepper Brushed 3-Phase Low Voltage DRV8313 DRV8815

0 to 60V) Split Rail Support DRV8834 Stepper Driver 2A (2.5 to 10.

42 DRV8x Road map Motor Type Stepper Brushed 3-Phase Low Voltage DRV8313 DRV8815 DRV8817 Driver : A (8.2 to 45V) Controller + Driver: 8815/17 3A (8815) / 4.8A (8817) (8 to 32V) Sine or Trap Control DRV8844 Brushed DC: A (8.0 to 60V) Split Rail Support DRV8834 Stepper Driver 2A (2.5 to 10.8V) 1/32-step indexer DRV8835 DRV8836 DRV8851 DRV8852 Brushed DC or Stepper Driver 1.5A per Bridge (2 to 7/11V) 200mA LDO (8851/52) DRV8837 DRV8838 Single Brushed DC 1.5A (2 to 7/11V)

43 Brushed DC Motor Drivers Part Number Status # of Motors Voltage Range (V) Cont/Peak Current (A) RDSON (mω) Inrush Protection 1K Comments Phase Enable Control I/F DRV8800 Released / /350 Limited $1.25 P2P with Allegro A3950 DRV8801 Released / /350 Limited $1.25 DRV8800 w/ current sense output DRV8802 Released / /650 Yes $1.65 DRV8812 with brake DRV8814 Released / /200 Yes $2.25 DRV8813 with brake DRV8840 Released / /100 Yes $2.25 DRV8829 with brake Serial Control I/F DRV8830 Released / /200 Yes $ level Voltage Reg / I2C PWM Control I/F DRV8832 Released / /200 Yes $0.85 Voltage Regulation DRV8833 Released / /160 Yes $0.95 2x Brushed / /80 Yes $0.95 1x Brushed / Paralleled DRV8841 Released / /200 Yes $2.25 Independent ½-H control DRV8842 Released / /100 Yes $2.25 Independent ½-H control DRV8843 Released / /200 Yes $2.25 Independent ½-H control

44 Brushed DC Motor Drivers Continued Part Number Status Voltage Range (V) Inrush Protection DRV8412 Released V Yes DRV8432 Released V Yes # of Motors Cont/Peak Current (A) PWM Control IF Continued RDSON (mω) / / / / / / / /65 1K $3.85 $5.50 Comments 2x Brushed / No heat sink. Needs +12V gate drive supply 1x Bushed / No heat sink. Needs +12V gate drive supply 2x Brushed / needs heat sink: Needs +12V gate drive supply 1x Brushed / needs heat sink: Needs +12V gate drive supply

45 Stepper Motor Drivers Part Number Status # of Motors Voltage Range (V) Cont/Peak Current (A) RDSON (mω) Current Levels 1K Comments Indexer Control I/F DRV8805 Released to 60 1A/2A $1.50 Quad Low Side Driver for Unipolar Steppers. Wave, Full, and Half step DRV8811 Released / /500 8x -steps $1.80 Fixed off time with adjustable mixed decay % s. P2P with Allegro A3977; A3979 & Rohm BD63860 DRV8818 Released / /220 8x -steps $2.40 Lower RDSON version of P2P with Allegro A3977, A3979 & Rohm BD63860 DRV8821 Released / /300 8x -steps $2.00 DRV8824 Released / /650 32x -steps $1.65 P2P with DRV8825 DRV8825 Released / /200 32x -steps $2.40 Lower RDSON version of 8824 Phase Enable Control I/F DRV8812 Released / /650 4x $1.65 > 4 Micro-step with external DAC DRV8813 Released / /200 4x $2.25 > 4 Micro-step with external DAC DRV8828 Released ½ / /330 32x $1.65 > 32 Micro-step with external DAC DRV8829 Released ½ / /100 32x $2.25 > 32 Micro-step with external DAC

46 Stepper Motor Drivers Continued Part Number Status # of Motors Voltage Range (V) Cont/Peak Current (A) RDSON (mω) Current Levels 1K Comments Serial Control I/F DRV8823 Released / 1.5A 250/300 8x $2.00 SPI Control bus DRV8804 Released to 60 1A/2A $1.450 PWM Control I/F DRV8803 Released to mA $1.40 DRV8833 Released / /160 1x $0.95 Quad Low Side Driver for Unipolar Steppers. Wave, Full, and Half step Quad Low Side Driver for Unipolar Steppers. Dual 2A H-Bridge / Full and ½ Step modes DRV8841 Released / /200 4x $2.25 Independent ½-H control DRV8842 Released ½ / /100 32x $2.25 Independent ½-H control DRV8412 Released / /110 None $3.85 DRV8432 Released / /110 None $5.50 No heatsink : Needs +12V Gate Drive Supply Heatsink required : Needs +12V Gate Drive Supply

47 Solenoid Drivers Part Number Status # of Solenoids Voltage Range (V) Cont/Peak Current (A) RDSON (mω) Current Levels 1K Comments PWM Control I/F DRV8832 Released / /200 1x $0.85 PWM voltage regulation DRV8833 Released / /160 1x $0.95 Dual 2.0A H-Bridge DRV8841 Released / /200 4x $2.25 Independent ½-H control DRV8842 Released / /200 32x $2.25 Independent ½-H control DRV8803 Released A/2A $1.40 DRV8804 Released A/2A $1.40 Quad Low Side Driver with integrated freewheel diodes. PWM Ctrl Interface Quad Low Side Driver with integrated freewheel diodes. Serial Control Interface DRV8844 Released A/2A $1.40 DQuad half bridge

48 3-Phase Motor Controllers/Drivers Part Number Status # of Motors Voltage Range Cont/Peak Current PWM Control I/F RDSON (mω) DRV8312 Released V 3.5 / 6.5A 110/110 $3.30 DRV8332 Released V 8 / 13A 110/110 $4.70 1K Comments No heatsink : Needs +12V Gate Drive Supply Heatsink required : Needs +12V Gate Drive Supply DRV8301 Released V 1.7A Pre-driver N/A $2.50 Pre-driver w/ 1.5A buck & 2x current sense amps (SPI Mgmt I/F) DRV8302 Released V 1.7A Pre-driver N/A $2.50 Pre-driver w/ 1.5A buck & 2x current sense amps (Hardware Mgmt I/F)

49 Bigger manufacturing footprint U.S., Asia and Europe Greenock NEW! Chengdu Freising Japan Aizu Miho Portland NEW! Texas Dallas Richardson Sherman Aguascalientes NEW! Malaysia Kuala Lumpur Melaka Taipei Philippines Baguio City Pampanga 11 wafer fabs 7 assembly/test sites 3 bump facilities

50 For More Information: Motor Solutions Home Page:

51 Questions?

Motor Drive Business Unit Gem Li Marketing Manager

Motor Drive Business Unit Gem Li Marketing Manager H-Bridge: The Heart of the Driver VM High Side Gate Driver M High Side Gate Driver Low Side Gate Driver Low Side Gate Driver Critical Specs / Care abouts: