IC manufacturers Texas Instruments

IC manufacturers (103)

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
Input voltage4.5-38 V
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 driver
  • 4.5-V to 38-V operating supply voltage range
  • Ripple counting feature for:
  • On-chip Speed and Position detection
  • Integrated Voltage and Speed regulation
  • Soft-Start and Stop feature for inrush current protection
  • 600-mΩ RDS(on) (High-Side + Low-Side)
  • High output current capability: 3.7-A Peak, 2-A RMS
  • PWM with I2C control interface
  • Configuration and diagnostics on I2C registers
  • Multi-follower operation support
  • Supports standard and fast I2C mode
  • Supports 3.3-V, and 5-V logic inputs
  • Integrated current sensing and current regulation
  • Analog current sense output (IPROPI)
  • Internal charge pump with 100% duty cycle
  • Long battery life with low-power sleep mode
  • < 1 µA maximum sleep current
  • Small package and footprint
  • 16-Pin WQFN with PowerPAD™, 3 × 3 mm
  • Integrated protection features
  • VM undervoltage lockout (UVLO)
  • Overcurrent protection (OCP)
  • Thermal shutdown (TSD)
  • Stall detection
  • Overvoltage protection (OVP)

Typical applications

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

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
R
Tol. R
PRated(W)
TCR(ppm/ °C)
TCR(ppm/ °C)
IR(A)
L(mm)
W(mm)
Pins
PCB/Cable/Panel
Modularity
Wire Section
λDom typ.(nm)
Emitting Color
λPeak typ.(nm)
IV typ.(mcd)
VF typ.(V)
Chip Technology
50% typ.(°)
f
Tol. f
Cload(pF)
Operating Temperature
C
Tol. C
VR(mV)
Size
Q(%)
DF(%)
RISO
Ceramic Type
Fl(mm)
Packaging
Endurance(h)
IRIPPLE(mA)
Z(mΩ)
ILeak(µA)
Ø D(mm)
RESR(Ω)
Interface Type
Variant
Gender
Mount
Working Voltage(V (AC))
Color
H(mm)
Operation Force(g)
Electrical Life(Cycles)
Actuator Color
Washable
Vaporphase process
Z @ 100 MHz(Ω)
Zmax(Ω)
Test Condition Zmax
IR 2(mA)
RDC max.(Ω)
Type
Samples
WRIS-KSKE Thick Film Resistors, 10 Ω, ±1%
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Resistance10 Ω
Resistance±1% 
Rated Power0.125 W
Temperature Coefficient of Resistance (min.)-100 ppm/ °C
Temperature Coefficient of Resistance (max.)100 ppm/ °C
Rated Current0.11 A
Length1 mm
Width0.5 mm
Operating Temperature -55 °C up to +155 °C
Rated Voltage1118 mV
Size0402 
Pad Dimension0.25 mm
MountSMT 
Height0.35 mm
WE-CBF SMT EMI Suppression Ferrite Bead, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Rated Current0.55 A
Length1.6 mm
Width0.8 mm
Operating Temperature -55 °C up to +125 °C
Size0603 
Pad Dimension0.3 mm
MountSMT 
Height0.8 mm
Impedance @ 100 MHz140 Ω
Maximum Impedance430 Ω
Maximum Impedance550 MHz 
Rated Current 21250 mA
DC Resistance0.2 Ω
TypeHigh Speed 
WL-SMCW SMT Mono-color Chip LED Waterclear, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1.6 mm
Width0.8 mm
Dominant Wavelength [typ.]630 nm
Emitting ColorSuper Red 
Peak Wavelength [typ.]645 nm
Luminous Intensity [typ.]60 mcd
Forward Voltage [typ.]1.9 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
Operating Temperature -40 °C up to +85 °C
Size0603 
PackagingTape and Reel 
MountSMT 
Height0.7 mm
WL-SMCW SMT Mono-color Chip LED Waterclear, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1.6 mm
Width0.8 mm
Dominant Wavelength [typ.]625 nm
Emitting ColorRed 
Peak Wavelength [typ.]630 nm
Luminous Intensity [typ.]250 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
Operating Temperature -40 °C up to +85 °C
Size0603 
PackagingTape and Reel 
MountSMT 
Height0.7 mm
WL-SMCW SMT Mono-color Chip LED Waterclear, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1.6 mm
Width0.8 mm
Dominant Wavelength [typ.]590 nm
Emitting ColorYellow 
Peak Wavelength [typ.]595 nm
Luminous Intensity [typ.]120 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
Operating Temperature -40 °C up to +85 °C
Size0603 
PackagingTape and Reel 
MountSMT 
Height0.7 mm
WL-SMCW SMT Mono-color Chip LED Waterclear, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1.6 mm
Width0.8 mm
Dominant Wavelength [typ.]570 nm
Emitting ColorBright Green 
Peak Wavelength [typ.]572 nm
Luminous Intensity [typ.]40 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
Operating Temperature -40 °C up to +85 °C
Size0603 
PackagingTape and Reel 
MountSMT 
Height0.7 mm
WCAP-ASLL Aluminum Electrolytic Capacitors, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length10.5 mm
Width8.3 mm
Operating Temperature -55 °C up to +105 °C
Capacitance100 µF
Capacitance±20% 
Rated Voltage50000 mV
Size8.0 x 10.5 
Dissipation Factor12 %
Insulation Resistance1 MΩ
Packaging15" Tape & Reel 
Endurance 5000
Ripple Current350 mA
Impedance340 mΩ
Leakage Current50 µA
Diameter8 mm
ESR0.227529 Ω
MountV-Chip SMT 
WCAP-PSLP Aluminum Polymer Capacitors, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length5.5 mm
Width4.3 mm
Operating Temperature -55 °C up to +105 °C
Capacitance10 µF
Capacitance±20% 
Rated Voltage10000 mV
Size4.0 x 5.5 
Dissipation Factor8 %
Packaging15" Tape & Reel 
Endurance 2000
Ripple Current1200 mA
Leakage Current300 µA
Diameter4 mm
ESR0.08 Ω
MountV-Chip SMT 
WCAP-CSGP MLCCs 50 V(DC), –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1 mm
Width0.5 mm
Operating Temperature -55 °C up to +125 °C
Capacitance10 pF
Capacitance±5% 
Rated Voltage50000 mV
Size0402 
Q-Factor600 %
Insulation Resistance10 GΩ
Ceramic TypeNP0 Class I 
Pad Dimension0.25 mm
Packaging7" Tape & Reel 
Height0.5 mm
WCAP-CSGP MLCCs 50 V(DC), –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1 mm
Width0.5 mm
Operating Temperature -55 °C up to +125 °C
Capacitance33 pF
Capacitance±5% 
Rated Voltage50000 mV
Size0402 
Q-Factor1000 %
Insulation Resistance10 GΩ
Ceramic TypeNP0 Class I 
Pad Dimension0.25 mm
Packaging7" Tape & Reel 
Height0.5 mm
WCAP-CSGP MLCCs 10 V(DC), –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1 mm
Width0.5 mm
Operating Temperature -55 °C up to +125 °C
Capacitance100 nF
Capacitance±10% 
Rated Voltage10000 mV
Size0402 
Dissipation Factor5 %
Insulation Resistance5 GΩ
Ceramic TypeX7R Class II 
Pad Dimension0.25 mm
Packaging7" Tape & Reel 
Height0.5 mm
WCAP-CSGP MLCCs 16 V(DC), –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1 mm
Width0.5 mm
Operating Temperature -55 °C up to +125 °C
Capacitance10 nF
Capacitance±10% 
Rated Voltage16000 mV
Size0402 
Dissipation Factor3.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Pad Dimension0.25 mm
Packaging7" Tape & Reel 
Height0.5 mm
WCAP-CSGP MLCCs 10 V(DC), –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1 mm
Width0.5 mm
Operating Temperature -55 °C up to +85 °C
Capacitance1 µF
Capacitance±20% 
Rated Voltage10000 mV
Size0402 
Dissipation Factor15 %
Insulation Resistance0.05 GΩ
Ceramic TypeX5R Class II 
Pad Dimension0.25 mm
Packaging7" Tape & Reel 
Height0.5 mm
WCAP-CSGP MLCCs 16 V(DC), –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1.6 mm
Width0.8 mm
Operating Temperature -55 °C up to +125 °C
Capacitance220 nF
Capacitance±10% 
Rated Voltage16000 mV
Size0603 
Dissipation Factor5 %
Insulation Resistance2.3 GΩ
Ceramic TypeX7R Class II 
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
Height0.8 mm
WCAP-CSGP MLCCs 50 V(DC), –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1.6 mm
Width0.8 mm
Operating Temperature -55 °C up to +125 °C
Capacitance100 nF
Capacitance±10% 
Rated Voltage50000 mV
Size0603 
Dissipation Factor3 %
Insulation Resistance5 GΩ
Ceramic TypeX7R Class II 
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
Height0.8 mm
WCAP-CSGP MLCCs 10 V(DC), –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1.6 mm
Width0.8 mm
Operating Temperature -55 °C up to +85 °C
Capacitance470 nF
Capacitance±20% 
Rated Voltage10000 mV
Size0603 
Dissipation Factor10 %
Insulation Resistance0.2 GΩ
Ceramic TypeX5R Class II 
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
Height0.8 mm
WCAP-CSGP MLCCs 10 V(DC), –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1.6 mm
Width0.8 mm
Operating Temperature -55 °C up to +85 °C
Capacitance4.7 µF
Capacitance±20% 
Rated Voltage10000 mV
Size0603 
Dissipation Factor10 %
Insulation Resistance0.02 GΩ
Ceramic TypeX5R Class II 
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
Height0.8 mm
WCAP-CSGP MLCCs 16 V(DC), –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1.6 mm
Width0.8 mm
Operating Temperature -55 °C up to +85 °C
Capacitance2.2 µF
Capacitance±20% 
Rated Voltage16000 mV
Size0603 
Dissipation Factor10 %
Insulation Resistance0.05 GΩ
Ceramic TypeX5R Class II 
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
Height0.8 mm
WCAP-CSGP MLCCs 10 V(DC), –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length2 mm
Width1.25 mm
Operating Temperature -55 °C up to +85 °C
Capacitance22 µF
Capacitance±20% 
Rated Voltage10000 mV
Size0805 
Dissipation Factor10 %
Insulation Resistance0.005 GΩ
Ceramic TypeX5R Class II 
Pad Dimension0.5 mm
Packaging7" Tape & Reel 
Height1.25 mm
WR-PHD Pin Header - Dual, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Rated Current3 A
Length33.02 mm
Pins26 
Operating Temperature -40 °C up to +105 °C
Insulation Resistance1000 MΩ
PackagingBag 
GenderPin Header 
MountTHT 
Working Voltage250 V (AC)
TypeStraight 
WS-TASV SMT Washable Tact Switch 6x6 mm, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Rated Current0.05 A
Operating Temperature -40 °C up to +85 °C
Rated Voltage12000 mV
Insulation Resistance100 MΩ
PackagingTape and Reel 
Height2.5 mm
Operation Force160 g
Electrical Life1000000 Cycles
Actuator ColorBlack 
WashableYes 
Vaporphase processnot specified 
WR-USB Mini/Micro Connectors, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Rated Current1 A
Pins
Operating Temperature -40 °C up to +105 °C
Insulation Resistance1000 MΩ
PackagingTape and Reel 
Interface TypeType B 
Variantwith Pads & Pegs 
GenderReceptacle 
MountSMT 
Working Voltage30 V (AC)
ColorBlack 
TypeHorizontal 
WR-TBL Series 2506 - 6.35 mm Horizontal Entry Modular w. Rising Cage Clamp, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Rated Current32 A
Length12.7 mm
Pins
PCB/Cable/PanelPCB 
ModularityYes 
Wire Section 10 to 30 (AWG) 5.26 to 0.0509 (mm²)
Operating Temperature -30 °C up to +120 °C
PackagingBox 
MountTHT 
Working Voltage450 V (AC)
ColorGreen 
TypeHorizontal 
WR-PHD Jumper, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
Rated Current3 A
Length2.44 mm
Pins
Operating Temperature -40 °C up to +125 °C
Insulation Resistance1000 MΩ
PackagingBag 
GenderJumper 
Working Voltage250 V (AC)
ColorBlack 
WR-PHD Pin Header - Single, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Rated Current3 A
Length7.62 mm
Pins
Operating Temperature -40 °C up to +105 °C
Insulation Resistance1000 MΩ
PackagingBag 
GenderPin Header 
MountTHT 
Working Voltage250 V (AC)
TypeStraight 
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Rated Current3 A
Length17.78 mm
Pins14 
Operating Temperature -40 °C up to +105 °C
Insulation Resistance1000 MΩ
PackagingBag 
GenderPin Header 
MountTHT 
Working Voltage250 V (AC)
TypeStraight 
WCAP-CSGP MLCCs 100 V(DC), –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1 mm
Width0.5 mm
Operating Temperature -55 °C up to +125 °C
Capacitance100 pF
Capacitance±5% 
Rated Voltage100000 mV
Size0402 
Q-Factor1000 %
Insulation Resistance10 GΩ
Ceramic TypeNP0 Class I 
Pad Dimension0.25 mm
Packaging7" Tape & Reel 
Height0.5 mm
WCAP-CSGP MLCCs 100 V(DC), –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1.6 mm
Width0.8 mm
Operating Temperature -55 °C up to +125 °C
Capacitance1 nF
Capacitance±5% 
Rated Voltage100000 mV
Size0603 
Q-Factor1000 %
Insulation Resistance10 GΩ
Ceramic TypeNP0 Class I 
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
Height0.8 mm
WCAP-CSGP MLCCs 100 V(DC), –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length1.6 mm
Width0.8 mm
Operating Temperature -55 °C up to +125 °C
Capacitance100 nF
Capacitance±10% 
Rated Voltage100000 mV
Size0603 
Dissipation Factor5 %
Insulation Resistance1 GΩ
Ceramic TypeX7R Class II 
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
Height0.8 mm
WE-XTAL Watch Crystals, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length9.5 mm
Width2.54 mm
Frequency32.768 kHz
Frequency±20ppm 
Load Capacitance12.5 pF
Operating Temperature -40 °C up to +85 °C
SizeCFPX-56 
Height2.54 mm
WCAP-CSGP MLCCs 100 V(DC), –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Length3.2 mm
Width2.5 mm
Operating Temperature -55 °C up to +125 °C
Capacitance1 µF
Capacitance±10% 
Rated Voltage100000 mV
Size1210 
Dissipation Factor2.5 %
Insulation Resistance0.1 GΩ
Ceramic TypeX7R Class II 
Pad Dimension0.75 mm
Packaging7" Tape & Reel 
Height2 mm