IC manufacturers Texas Instruments

IC manufacturers (99)

Texas Instruments DRV8234 | Demoboard DRV8234EVM

38-V 2-A H-bridge motor driver with ripple counting, sensorless stall detection and I²C interface

Overview

TopologyMotor Drive
IC revisionA

Description

The DRV8234 is a high-performance integrated H-bridge motor driver with integrated speed and position detection using ripple counting along with additional features like motor speed and voltage regulation, stall detection, current sense output, current regulation, and protection circuitry.The integrated ripple counting algorithm counts the number of ripples in the motor current to determine motor relative position and speed eliminating the potential need for encoders, hall sensors, or optical sensors. This reduces board space and design complexity, and saves on overall system cost. Integrated speed regulation is used to maintain constant motor speed over varying input supply voltages which minimizes current consumption and saves power over time. This is critical in applications that have different loading conditions or rely on battery power for operation where the input voltage is not constant. Soft-start and stop allows for a controlled turn-on and turn-off time, reducing large inrush currents to protect the motor windings from damage, thereby increasing system reliability and longevity.An internal current mirror implements current sensing and regulation. This eliminates the need for a large power shunt resistor, saving board area and reducing system cost. The IPROPI current sense output allows a microcontroller to detect motor stall or changes in load conditions. Using the VREF pin, this device can regulate the motor current during startup and high-load events without interaction from a microcontroller. The device supports sensorless motor stall detection and reporting to microcontroller.

Features

N-channel H-bridge brushed DC motor driver4.5-V to 38-V operating supply voltage rangeRipple counting feature for:On-chip Speed and Position detectionIntegrated Voltage and Speed regulationSoft-Start and Stop feature for inrush current protection600-mΩ RDS(on) (High-Side + Low-Side)High output current capability: 3.7-A Peak, 2-A RMSPWM with I2C control interfaceConfiguration and diagnostics on I2C registersMulti-follower operation supportSupports standard and fast I2C modeSupports 3.3-V, and 5-V logic inputsIntegrated current sensing and current regulationAnalog current sense output (IPROPI)Internal charge pump with 100% duty cycleLong battery life with low-power sleep mode< 1 µA maximum sleep currentSmall package and footprint16-Pin WQFN with PowerPAD™, 3 × 3 mmIntegrated protection featuresVM undervoltage lockout (UVLO)Overcurrent protection (OCP)Thermal shutdown (TSD)Stall detectionOvervoltage protection (OVP)

Typical applications

  • Electric toothbrush
  • Electronic and robotic toys
  • Brushed DC motor, Solenoid & relay driving
  • water and gas meters
  • Portable printers
  • Elctronic smart lock
  • Infusion pumps and other medical equipments
  • Point-of-sale (POS) devices
  • beuty and Grooming

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesRTol. RPRated
(W)
TCR
(ppm/ °C)
TCR
(ppm/ °C)
L
(mm)
W
(mm)
ApplicationPCB/Cable/PanelModularityWire SectionλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
fTol. fCload
(pF)
Operating TemperatureCTol. CVR
(mV)
SizeQDF
(%)
RISOCeramic TypeFl
(mm)
Interface TypeMountIR
(mA)
Working Voltage
(V (AC))
Endurance
(h)
Operating TemperatureIRIPPLE
(mA)
Z
(mΩ)
ILeak
(µA)
Ø D
(mm)
RESR
(Ω)
H
(mm)
Operation Force (Value)
(g)
Electrical Life
(Cycles)
Actuator ColorVaporphase processZ @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(Ω)
TypePins (Value)
(pcs)
RowsGenderIR
(A)
PackagingColor Samples
560050310009SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WRIS-KSKE Thick Film Resistors10 Ω ±1% 0.125 -100 100 1 0.5 -55 °C up to +155 °C 1118 0402 0.25 SMT 0.35 0.11
742792621SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WE-CBF SMT EMI Suppression Ferrite Bead 1.6 0.8 -55 °C up to +125 °C 0603 0.3 SMT 550 -55 °C up to +125 °C 0.8 140 430 550 MHz 1250 0.2 two 0.55
150060SS75000SPEC
25 files Active i| Production is active. Expected lifetime: >10 years.WL-SMCW SMT Mono-color Chip LED Waterclear 1.6 0.8 630 Super Red 645 60 1.9 AlInGaP 140 -40 °C up to +85 °C 0603 SMT -40 °C up to +85 °C 0.7 Tape and Reel
150060RS75000SPEC
25 files Active i| Production is active. Expected lifetime: >10 years.WL-SMCW SMT Mono-color Chip LED Waterclear 1.6 0.8 625 Red 630 250 2 AlInGaP 140 -40 °C up to +85 °C 0603 SMT -40 °C up to +85 °C 0.7 Tape and Reel
150060YS75000SPEC
25 files Active i| Production is active. Expected lifetime: >10 years.WL-SMCW SMT Mono-color Chip LED Waterclear 1.6 0.8 590 Yellow 595 120 2 AlInGaP 140 -40 °C up to +85 °C 0603 SMT -40 °C up to +85 °C 0.7 Tape and Reel
150060VS75000SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WL-SMCW SMT Mono-color Chip LED Waterclear 1.6 0.8 570 Bright Green 572 40 2 AlInGaP 140 -40 °C up to +85 °C 0603 SMT -40 °C up to +85 °C 0.7 Tape and Reel
865060653010SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ASLL Aluminum Electrolytic Capacitors 10.5 8.3 -55 °C up to +105 °C100 µF ±20% 50000 8.0 x 10.5 121 MΩ V-Chip SMT 5000 -55 °C up to +105 °C 350 340 50 8 0.227529 15" Tape & Reel
875105240001SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-PSLP Aluminum Polymer Capacitors 5.5 4.3 -55 °C up to +105 °C10 µF ±20% 10000 4.0 x 5.5 8 V-Chip SMT 2000 -55 °C up to +105 °C 1200 300 4 0.08 15" Tape & Reel
885012005055SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 1 0.5 -55 °C up to +125 °C10 pF ±5% 50000 0402 60010 GΩ NP0 Class I 0.25 0.5 7" Tape & Reel
885012005058SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 1 0.5 -55 °C up to +125 °C33 pF ±5% 50000 0402 100010 GΩ NP0 Class I 0.25 0.5 7" Tape & Reel
885012205018SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 10 V(DC) 1 0.5 -55 °C up to +125 °C100 nF ±10% 10000 0402 55 GΩ X7R Class II 0.25 -55 °C up to +125 °C 0.5 7" Tape & Reel
885012205031SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 16 V(DC) 1 0.5 -55 °C up to +125 °C10 nF ±10% 16000 0402 3.510 GΩ X7R Class II 0.25 0.5 7" Tape & Reel
885012105012SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 10 V(DC) 1 0.5 -55 °C up to +85 °C1 µF ±20% 10000 0402 150.05 GΩ X5R Class II 0.25 -55 °C up to +85 °C 0.5 7" Tape & Reel
885012206048SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 16 V(DC) 1.6 0.8 -55 °C up to +125 °C220 nF ±10% 16000 0603 52.3 GΩ X7R Class II 0.4 0.8 7" Tape & Reel
885012206095SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 1.6 0.8 -55 °C up to +125 °C100 nF ±10% 50000 0603 35 GΩ X7R Class II 0.4 0.8 7" Tape & Reel
885012106008SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 10 V(DC) 1.6 0.8 -55 °C up to +85 °C470 nF ±20% 10000 0603 100.2 GΩ X5R Class II 0.4 0.8 7" Tape & Reel
885012106012SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 10 V(DC) 1.6 0.8 -55 °C up to +85 °C4.7 µF ±20% 10000 0603 100.02 GΩ X5R Class II 0.4 0.8 7" Tape & Reel
885012106018SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 16 V(DC) 1.6 0.8 -55 °C up to +85 °C2.2 µF ±20% 16000 0603 100.05 GΩ X5R Class II 0.4 0.8 7" Tape & Reel
885012107011SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 10 V(DC) 2 1.25 -55 °C up to +85 °C22 µF ±20% 10000 0805 100.005 GΩ X5R Class II 0.5 1.25 7" Tape & Reel
61302621121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.54 mm THT Dual Pin Header 33.02 -40 °C up to +105 °C1000 MΩ THT 250 Straight 26 Dual Pin Header 3 Bag
430481025816SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WS-TASV SMT Washable Tact Switch 6x6 mm -40 °C up to +85 °C 12000100 MΩ 2.5 160 1000000 Black not specified 0.05 Tape and Reel
629105136821SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-COM Micro USB 2.0 SMT Type B Horizontal 5 Contacts Micro USB 2.0 -40 °C up to +105 °C1000 MΩ Type B SMT 1000 30 -40 °C up to +85 °C Horizontal 5 Receptacle 1 Tape and Reel Black
691250610002SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-TBL Series 2506 - 6.35 mm Horizontal Entry Modular w. Rising Cage Clamp 12.7 Rising Cage Clamp PCB Yes 10 to 30 (AWG) 5.26 to 0.0509 (mm²) -30 °C up to +120 °C THT 450 -30 °C up to +120 °C Horizontal 2 32 Box Green
60900213421SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.54 mm Multi-Jumper Jumper with Test Point 2.44 -40 °C up to +125 °C1000 MΩ 250 1 Jumper 3 Bag Black
61300311121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.54 mm THT Pin Header 7.62 -40 °C up to +105 °C1000 MΩ THT 250 Straight 3 Single Pin Header 3 Bag
61301421121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.54 mm THT Dual Pin Header 17.78 -40 °C up to +105 °C1000 MΩ THT 3000 250 Straight 14 Dual Pin Header 3 Bag
885012005080SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 100 V(DC) 1 0.5 -55 °C up to +125 °C100 pF ±5% 100000 0402 100010 GΩ NP0 Class I 0.25 -55 °C up to +125 °C 0.5 7" Tape & Reel
885012006085SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 100 V(DC) 1.6 0.8 -55 °C up to +125 °C1 nF ±5% 100000 0603 100010 GΩ NP0 Class I 0.4 -55 °C up to +125 °C 0.8 7" Tape & Reel
885012206120SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 100 V(DC) 1.6 0.8 -55 °C up to +125 °C100 nF ±10% 100000 0603 51 GΩ X7R Class II 0.4 -55 °C up to +125 °C 0.8 7" Tape & Reel
830025159SPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

5 files Active i| Production is active. Expected lifetime: >10 years.WE-XTAL Watch Crystals 9.5 2.54 Real Time Clock32.768 kHz ±20ppm 12.5 -40 °C up to +85 °C CFPX-56 2.54
885012209069SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 100 V(DC) 3.2 2.5 -55 °C up to +125 °C1 µF ±10% 100000 1210 2.50.1 GΩ X7R Class II 0.75 2 7" Tape & Reel
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesRTol. RPRated
(W)
TCR
(ppm/ °C)
TCR
(ppm/ °C)
L
(mm)
W
(mm)
ApplicationPCB/Cable/PanelModularityWire SectionλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
fTol. fCload
(pF)
Operating TemperatureCTol. CVR
(mV)
SizeQDF
(%)
RISOCeramic TypeFl
(mm)
Interface TypeMountIR
(mA)
Working Voltage
(V (AC))
Endurance
(h)
Operating TemperatureIRIPPLE
(mA)
Z
(mΩ)
ILeak
(µA)
Ø D
(mm)
RESR
(Ω)
H
(mm)
Operation Force (Value)
(g)
Electrical Life
(Cycles)
Actuator ColorVaporphase processZ @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(Ω)
TypePins (Value)
(pcs)
RowsGenderIR
(A)
PackagingColor Samples