TI DRV8434RGER
| Manufacturer | |
| MPN | DRV8434RGER |
| LCSC Part # | C2935825 |
| Packaging | VQFN-24-EP(4x4) |
| Customer # | |
| Key Attributes | Stepper motor driver with integrated current sensing, 1/256 microstepping, STEP/DIR interface, and intelligent tuning technology |
| Datasheet |  TI DRV8434RGER |
Products Specifications
Show similar products (0) >| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Motor Drivers, Controllers | |
| Manufacturer | TI | |
| Packaging | VQFN-24-EP(4x4) | |
| Drive Type | Bipolar Driver | |
| Number of H-bridges | 2 | |
| Features | Motor step-out prevention function;Built-in charge pump;Overcurrent Protection;Over temperature protection;Under-voltage lockout | |
| Technology | Yes | |
| Operating temperature | -40℃~+125℃ | |
| Step Resolution | 256 | |
| Output Current | 2.5A | |
| Control Voltage | - | |
| RDS(on) | 330mΩ | |
| Motor Drive Voltage(Vm) | 4.5V~48V | |
| Interface | STEP/DIR |
Additional Information
| Type | Details |
|---|---|
| Minimum | 1 |
| Multiple | 1 |
| Standard Packaging | 3000 |
| Sales Unit | Piece |
| EDA Models | EasyEDA Model |
Introduction
The DRV8434 is a stepper motor driver for industrial and consumer applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8434 can drive up to 2.5A full-scale output current (depending on PCB design).
The DRV8434 is an integrated motor driver solution for bipolar stepper motors. The device achieves higher integration by integrating two N-channel power MOSFET H-bridges, current sensing resistors and regulation circuitry, and a microstepping indexer. The DRV8434 is pin-to-pin compatible with the DRV8426, DRV8436, and DRV8424/25. The DRV8434 supports a wide supply voltage range of 4.5V to 48V. The DRV8434 provides up to 4A peak, 2.5A full-scale, or 1.8A RMS output current. Actual full-scale and RMS current depend on ambient temperature, supply voltage, and PCB thermal performance.
The DRV8434 uses an integrated current sensing architecture that eliminates the need for two external power sense resistors, significantly saving board space and BOM cost while reducing design effort and power dissipation. This architecture eliminates power loss in sense resistors by using a current mirror approach and uses internal power MOSFETs for current sensing. The current regulation setpoint is controlled by the voltage at the VREF pin.
With a simple STEP/DIR interface, the direction and step rate of the stepper motor can be managed by an external controller. The internal microstepping indexer enables high-accuracy microstepping without requiring an external controller to manage winding current levels. The indexer supports full-step, half-step, and 1/4, 1/8, 1/16, 1/32, 1/64, 1/128, and 1/256 microstepping. High microstepping helps significantly reduce audible noise and achieve smooth motion. In addition to the standard half-step mode, a non-circular half-step mode is available to increase torque output at higher motor speeds.
Stepper motor drivers need to recirculate winding current by implementing multiple types of decay modes, such as slow decay, mixed decay, and fast decay. The DRV8434 offers Smart Tune decay modes. Auto Tune is an innovative decay mechanism that automatically adjusts to achieve excellent current regulation performance regardless of voltage, motor speed, variation, and aging effects. Auto Tune Ripple Control uses a variable off-time ripple current control scheme to minimize distortion in motor winding current. Auto Tune Dynamic Decay uses a fixed off-time dynamic fast decay percentage scheme to minimize distortion in motor winding current while achieving minimum frequency components and significantly reducing design effort. In addition to this seamless and effortless Auto Smart Tune, the DRV8434 also offers traditional decay modes such as slow mixed decay and mixed decay.
The device integrates spread-spectrum clock features for the internal digital oscillator and internal charge pump. This feature minimizes radiated emissions from the device. The system includes a low-power sleep mode to conserve power when not actively driving the motor.
Features
- Simple STEP/DIR interface PWM stepper motor driver
- Up to 1/256 microstepping indexer
- Integrated current sensing
- No sense resistors required
- ±4% full-scale current accuracy
- Smart tune, slow, and mixed decay options
- Operating supply voltage range: 4.5V to 48V
- Low R_DS(ON): 330mΩ HS + LS at 24V, 25℃
- High current capability: 2.5A full-scale, 1.8A RMS
- Pin-to-pin compatible with DRV8426, DRV8436, DRV8424/25
- Configurable off-time PWM chopping
- 7μs, 16μs, 24μs, or 32μs
- Supports 1.8V, 3.3V, 5.0V logic inputs
- Low-current sleep mode (2μA)
- Spread spectrum clocking for reduced EMI
- Small package and footprint
- VM undervoltage lockout (UVLO)
- Charge pump undervoltage (CPUV)
- Overcurrent protection (OCP)
- Open-load detection (OL)
- Thermal shutdown (OTSD)
- Fault condition output (nFAULT)
Applications
- Printers and scanners
- ATMs and banknote counters
- Textile machines
- Stage lighting equipment
- Office and home automation
- Factory automation and robotics
- Medical applications
- 3D printers
| Qty | Unit Price | Total Amount |
|---|---|---|
| 1+ | $ 2.9054 | $ 2.91 |
| 10+ | $ 2.7592 | $ 27.59 |
| 30+ | $ 2.6714 | $ 80.14 |
| 100+ | $ 2.582 | $ 258.20 |
| 500+ | $ 2.5414 | $ 1270.70 |
| 1,000+ | $ 2.5235 | $ 2523.50 |
Standard Packaging3000/Full Reel | ||
Products Specifications
Show similar products (0) >| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Motor Drivers, Controllers | |
| Manufacturer | TI | |
| Packaging | VQFN-24-EP(4x4) | |
| Drive Type | Bipolar Driver | |
| Number of H-bridges | 2 | |
| Features | Motor step-out prevention function;Built-in charge pump;Overcurrent Protection;Over temperature protection;Under-voltage lockout | |
| Technology | Yes | |
| Operating temperature | -40℃~+125℃ | |
| Step Resolution | 256 | |
| Output Current | 2.5A | |
| Control Voltage | - | |
| RDS(on) | 330mΩ | |
| Motor Drive Voltage(Vm) | 4.5V~48V | |
| Interface | STEP/DIR |
Additional Information
| Type | Details |
|---|---|
| Minimum | 1 |
| Multiple | 1 |
| Standard Packaging | 3000 |
| Sales Unit | Piece |
| EDA Models | EasyEDA Model |
Introduction
The DRV8434 is a stepper motor driver for industrial and consumer applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8434 can drive up to 2.5A full-scale output current (depending on PCB design).
The DRV8434 is an integrated motor driver solution for bipolar stepper motors. The device achieves higher integration by integrating two N-channel power MOSFET H-bridges, current sensing resistors and regulation circuitry, and a microstepping indexer. The DRV8434 is pin-to-pin compatible with the DRV8426, DRV8436, and DRV8424/25. The DRV8434 supports a wide supply voltage range of 4.5V to 48V. The DRV8434 provides up to 4A peak, 2.5A full-scale, or 1.8A RMS output current. Actual full-scale and RMS current depend on ambient temperature, supply voltage, and PCB thermal performance.
The DRV8434 uses an integrated current sensing architecture that eliminates the need for two external power sense resistors, significantly saving board space and BOM cost while reducing design effort and power dissipation. This architecture eliminates power loss in sense resistors by using a current mirror approach and uses internal power MOSFETs for current sensing. The current regulation setpoint is controlled by the voltage at the VREF pin.
With a simple STEP/DIR interface, the direction and step rate of the stepper motor can be managed by an external controller. The internal microstepping indexer enables high-accuracy microstepping without requiring an external controller to manage winding current levels. The indexer supports full-step, half-step, and 1/4, 1/8, 1/16, 1/32, 1/64, 1/128, and 1/256 microstepping. High microstepping helps significantly reduce audible noise and achieve smooth motion. In addition to the standard half-step mode, a non-circular half-step mode is available to increase torque output at higher motor speeds.
Stepper motor drivers need to recirculate winding current by implementing multiple types of decay modes, such as slow decay, mixed decay, and fast decay. The DRV8434 offers Smart Tune decay modes. Auto Tune is an innovative decay mechanism that automatically adjusts to achieve excellent current regulation performance regardless of voltage, motor speed, variation, and aging effects. Auto Tune Ripple Control uses a variable off-time ripple current control scheme to minimize distortion in motor winding current. Auto Tune Dynamic Decay uses a fixed off-time dynamic fast decay percentage scheme to minimize distortion in motor winding current while achieving minimum frequency components and significantly reducing design effort. In addition to this seamless and effortless Auto Smart Tune, the DRV8434 also offers traditional decay modes such as slow mixed decay and mixed decay.
The device integrates spread-spectrum clock features for the internal digital oscillator and internal charge pump. This feature minimizes radiated emissions from the device. The system includes a low-power sleep mode to conserve power when not actively driving the motor.
Features
- Simple STEP/DIR interface PWM stepper motor driver
- Up to 1/256 microstepping indexer
- Integrated current sensing
- No sense resistors required
- ±4% full-scale current accuracy
- Smart tune, slow, and mixed decay options
- Operating supply voltage range: 4.5V to 48V
- Low R_DS(ON): 330mΩ HS + LS at 24V, 25℃
- High current capability: 2.5A full-scale, 1.8A RMS
- Pin-to-pin compatible with DRV8426, DRV8436, DRV8424/25
- Configurable off-time PWM chopping
- 7μs, 16μs, 24μs, or 32μs
- Supports 1.8V, 3.3V, 5.0V logic inputs
- Low-current sleep mode (2μA)
- Spread spectrum clocking for reduced EMI
- Small package and footprint
- VM undervoltage lockout (UVLO)
- Charge pump undervoltage (CPUV)
- Overcurrent protection (OCP)
- Open-load detection (OL)
- Thermal shutdown (OTSD)
- Fault condition output (nFAULT)
Applications
- Printers and scanners
- ATMs and banknote counters
- Textile machines
- Stage lighting equipment
- Office and home automation
- Factory automation and robotics
- Medical applications
- 3D printers
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | |
| USHTS | |
| TARIC | |
| CAHTS | |
| BRHTS | |
| INHTS | |
| MXHTS |
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | |
| USHTS | |
| TARIC |
| Type | Details |
|---|---|
| CAHTS | |
| BRHTS | |
| INHTS | |
| MXHTS | |