My Inquiry
My Account
Texas Instruments DRV8434PRGER
- Part No.:
- DRV8434PRGER
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
DRV8434PRGER.pdf
- Description:
- 48-V, 2.5-A BIPOLAR STEPPER OR D
- Quantity:
- Payment:
- Shipping:
Inventory:1,345
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DRV8434PRGER from Texas Instruments is a dual H-bridge motor driver IC for bipolar stepper and brushed-DC motors, featuring integrated current sensing (±4% full-scale accuracy), 4.5–48 V operation, 4-A peak per bridge, and Smart Tune dynamic decay control. It enables compact, cost-effective motion control in robotics and factory automation.
For engineers reviewing the DRV8434PRGER datasheet, DRV8434PRGER pinout, DRV8434PRGER application, or DRV8434PRGER equivalent, this page delivers verified electrical specs, validated VQFN-24 pin functions, real-world use cases in vacuum robots and textile machines, and two confirmed alternative parts with documented functional differences.
Technical Context
The DRV8434PRGER integrates two N-channel H-bridges with internal current mirror sensing-eliminating external shunt resistors-and a charge pump for high-side gate drive. It supports PH/EN (DRV8434E) and PWM (DRV8434P) interfaces; DRV8434PRGER is the PWM-input variant (P-suffix), confirmed by TI's device nomenclature and pinout mapping (AIN1/AIN2/BIN1/BIN2 present; APH/AEN/BPH/BEN absent).
Its Smart Tune technology dynamically adjusts decay mode per PWM cycle based on winding inductance, supply voltage, and dI/dt-enabling ripple-optimized stepper control without manual tuning. Off-time is configurable to 7/16/24/32 μs via TOFF pin, and protection includes UVLO (4.25 V), OCP (4 A), and thermal shutdown (150 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 48 V - supports 12 V, 24 V, and 48 V industrial motor rails without external regulators. |
| Output Current | 4-A peak per bridge (brushed), 2.5-A full-scale (stepper) - enables direct drive of NEMA 17–23 stepper motors and 20 W DC motors. |
| RDS(ON) | 330 mΩ total (HS + LS) at 24 V, 25°C - minimizes conduction loss and thermal rise in compact PCB layouts. |
| Current Sense Accuracy | ±4% full-scale - eliminates need for precision external sense resistors, reducing BOM count and board area. |
| Logic Compatibility | 1.8-V, 3.3-V, 5.0-V inputs - interoperable with microcontrollers, FPGAs, and PLC I/O without level-shifting. |
| Sleep Current | 2 µA - enables battery-powered or energy-sensitive applications like portable robotic vacuums. |
| Fault Reporting | Open-drain nFAULT with UVLO, OCP, CPUV, and OTSD detection - simplifies system-level fault logging and recovery. |
Pinout & Package
VQFN-24 package (4.0 mm × 4.0 mm, 0.5 mm pitch) with exposed thermal pad-designed for high-power density and efficient heat dissipation in space-constrained motor control modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AOUT1, AOUT2 | H-bridge A output terminals | Connect directly to one stepper motor winding or brushed-DC motor leads; rated for 4-A peak current. |
| BOUT1, BOUT2 | H-bridge B output terminals | Drive second motor winding or independent brushed-DC load; electrically isolated from A-bridge outputs. |
| AIN1, AIN2, BIN1, BIN2 | PWM input pairs | Accept complementary logic signals (0–5.5 V) to control direction and braking; internal pulldowns ensure safe default state. |
| VREFA, VREFB | Current regulation reference inputs | Set full-scale chopping current (IFS = VREF / 1.32 V/A); 0.05–3.3 V range supports 38 mA to 2.5 A full-scale. |
| TOFF, ADECAY, BDECAY | Quad-level configuration pins | Resistor-tied or direct-connected inputs selecting off-time (7/16/24/32 μs) and decay mode (Smart Tune, mixed, fast). |
| nSLEEP | Low-power enable input | Logic low (≤0.6 V) enters 2-µA sleep; rising edge wakes device in ≤1.2 ms with automatic fault clearance. |
| nFAULT | Open-drain fault indicator | Pulled low during UVLO, OCP, CPUV, or thermal fault; requires external pullup to DVDD or system rail. |
| VM, PGND, GND | Power supply and ground terminals | VM (4.5–48 V) powers motor outputs; PGND handles high-current return; GND is logic ground-separate routing required. |
| VCP, CPH, CPL | Charge pump nodes | Generate gate drive voltage for N-channel high-side FETs; require 0.22-μF (VCP–VM) and 0.022-μF (CPH–CPL) X7R ceramics. |
| DVDD | Internal 5-V LDO output | Supplies up to 2 mA for logic biasing; bypass with 0.47–1-μF ceramic to GND; drops under >2 mA load. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated current sensing | Eliminates two external power shunts-reducing BOM cost by $0.15–$0.30 and saving ≥12 mm² PCB area. |
| Smart Tune Dynamic Decay | Automatically optimizes decay aggressiveness per PWM cycle to minimize current ripple without manual tuning. |
| Configurable PWM off-time | Four discrete tOFF options (7/16/24/32 μs) enable trade-off between torque smoothness and switching loss. |
| Inrush current limiting | Prevents overcurrent tripping during brushed-DC motor startup-critical for high-inertia loads like conveyor belts. |
| Spread spectrum clocking | Reduces EMI peak amplitude by >10 dB in 30–100 MHz band-simplifies EMC compliance in industrial enclosures. |
Applications
| Printers and Scanners | Factory Automation |
|---|---|
Use Scenario: Bidirectional paper feed and carriage positioning in multifunction printers. IC Role / Device Role / Timing Role: Dual H-bridge drives stepper for precise paper advance and brushed-DC motor for scanner lamp movement. Use Value: Integrated current sense ensures consistent step accuracy across varying paper weight; Smart Tune adapts to mechanical wear over time. |
Use Scenario: Actuation of pick-and-place end-effectors and linear actuators in programmable logic controller (PLC)-based systems. IC Role / Device Role / Timing Role: DRV8434PRGER provides independent control of two axes-each with real-time current regulation and fault reporting. Use Value: 4-A peak rating supports 24 V solenoid valves and small servo-like actuators; nFAULT enables PLC-integrated diagnostics. |
| Vacuum Robots | Textile Machinery |
Use Scenario: Simultaneous control of brush roller motor and main drive wheel in cordless robotic vacuum cleaners. IC Role / Device Role / Timing Role: One bridge powers main drive (brushed-DC), the other controls brush roller-both regulated to 2.5 A RMS for battery life optimization. Use Value: 2 µA sleep current extends runtime between charges; spread spectrum reduces RF interference with onboard Wi-Fi/BLE. |
Use Scenario: Precision tension control and shuttle motion in industrial embroidery and weaving machines. IC Role / Device Role / Timing Role: Drives bipolar stepper for shuttle positioning and brushed-DC motor for tensioner actuation-synchronized via shared PWM clock. Use Value: ±4% current accuracy maintains fabric tension consistency; thermal shutdown prevents damage during prolonged high-speed operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual H-bridge motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV8424PRGER | Identical 330 mΩ RDS(ON), but 33-V max VM and no Smart Tune-uses fixed decay modes only. | Suitable for 24 V-only systems where decay tuning is pre-characterized; not recommended for 48 V stepper applications. | Select when cost sensitivity outweighs adaptive decay needs and supply is capped at 33 V. |
| DRV8436PRGER | Same 48-V rating and Smart Tune, but higher 900 mΩ RDS(ON)-doubles conduction loss at 2.5 A. | Better suited for thermally constrained designs where lower peak current (≤2 A) is acceptable. | Choose for legacy 48 V systems requiring drop-in replacement with relaxed thermal design margins. |
Compared with DRV8434PRGER, DRV8424PRGER offers identical efficiency but lacks adaptive decay, while DRV8436PRGER retains Smart Tune at the cost of higher thermal load-making DRV8434PRGER optimal for 48 V, high-dynamic-response stepper systems demanding both low loss and self-tuning.
Availability
DRV8434PRGER is available at Aetrix Electronics and suitable for factory automation, robotics, and home appliance designs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DRV8434PRGER includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in motor control ICs and industrial-grade power management.
The DRV8434PRGER belongs to TI's high-voltage dual H-bridge portfolio, engineered specifically for compact, intelligent motion control in robotics, appliances, and automated machinery-emphasizing integration, efficiency, and ease of system tuning.
FAQ
What is the maximum motor supply voltage supported by the DRV8434PRGER?
The DRV8434PRGER supports a motor supply voltage (VM) range of 4.5 V to 48 V. Absolute maximum rating is 50 V, but continuous operation above 48 V violates recommended conditions and risks permanent damage. For 48 V systems, ensure proper derating of current capability and thermal management per TI's thermal metrics (RθJA = 39.0 °C/W for VQFN).
Does the DRV8434PRGER require external current sense resistors?
No, the DRV8434PRGER does not require external current sense resistors. It uses an internal current mirror architecture that senses motor current through the power MOSFETs, achieving ±4% full-scale accuracy. This eliminates two high-wattage shunt resistors, reducing board area, BOM cost, and power loss-confirmed in TI's SLOSE49 datasheet Section 1 and 7.3.2.
How does Smart Tune technology function in the DRV8434PRGER?
Smart Tune in the DRV8434PRGER dynamically adjusts decay mode each PWM cycle based on real-time current behavior-increasing fast-decay percentage if current overshoots the trip threshold, or decreasing it if drive time is excessive. It operates in Smart Tune Dynamic Decay or Ripple Control modes, optimizing ripple and efficiency without user calibration-detailed in Section 7.3.3.3 of the DRV8434E/P datasheet.
What is the purpose of the TOFF pin on the DRV8434PRGER?
The TOFF pin on the DRV8434PRGER selects the PWM off-time duration during current chopping: 0 = 7 μs, 1 = 16 μs, Hi-Z = 24 μs, and 330 kΩ-to-GND = 32 μs. This setting applies to all decay modes except Smart Tune Ripple Control and can be changed dynamically. The off-time directly affects torque ripple, heating, and regulation stability-per Table 7-4 and Section 7.3.2.
Can the DRV8434PRGER drive a bipolar stepper motor and two brushed-DC motors simultaneously?
Yes, the DRV8434PRGER can drive either one bipolar stepper motor (using both bridges for A/B windings) or two independent brushed-DC motors (one per bridge). It cannot drive four unidirectional brushed-DC motors simultaneously-the PH/EN vs. PWM interface variants differ, and DRV8434PRGER is the PWM-input version (P-suffix) supporting only dual brushed or single stepper configurations per TI's functional description and pinout.
DRV8434PRGER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (2)
- Interface:
- PWM
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 2.5A
- Voltage - Supply:
- 4.5V ~ 48V
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-VQFN (4x4)
DRV8434PRGER FAQ
1.How can I place an order for DRV8434PRGER through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8434PRGER on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DRV8434PRGER reliable?
The price and inventory of DRV8434PRGER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8434PRGER is usually 5 days.
3.What payment methods are accepted for DRV8434PRGER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8434PRGER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8434PRGER?
DRV8434PRGER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8434PRGER order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DRV8434PRGER?
For technical support, including DRV8434PRGER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8434PRGER requirements.
6.How does Aetrix verify that DRV8434PRGER is sourced from the original manufacturer or authorized distributors?
All DRV8434PRGER products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DRV8434PRGER meets industry standards.
7.What is the process for return or replacement of DRV8434PRGER?
All DRV8434PRGER units undergo pre-shipment inspection (PSI). If there is an issue with DRV8434PRGER, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DRV8434PRGER part is unused and in its original packaging.
Return procedure for DRV8434PRGER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DRV8434PRGER Tags
-
DRV2603RUNR
Texas Instruments
-
DRV8837CDSGR
Texas Instruments
-
DRV8837DSGR
Texas Instruments
-
DRV8838DSGR
Texas Instruments
-
DRV8839DSSR
Texas Instruments
-
EMC2301-1-ACZL-TR
Microchip Technology
-
DRV8231ADSGR
Texas Instruments
-
EMC2302-2-AIZL-TR
Microchip Technology
-
DRV8800PWPR
Texas Instruments
-
DRV8835DSSR
Texas Instruments
-
EMC2303-1-KP-TR
Microchip Technology
-
DRV8876PWPR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
