My Inquiry
My Account
Texas Instruments DRV8434PPWPR
- Part No.:
- DRV8434PPWPR
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DRV8434PPWPR.pdf
- Description:
- IC MOTOR DRIVER
- Quantity:
- Payment:
- Shipping:
Inventory:2,455
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DRV8434PPWPR from Texas Instruments is a dual H-bridge motor driver IC for bipolar stepper or dual brushed-DC motors, featuring integrated current sensing (±4% full-scale accuracy), 4.5–48 V operation, 330 mΩ total RDS(ON) per bridge at 24 V/25°C, and Smart Tune dynamic decay control. It delivers up to 2.5-A full-scale stepper current or 4-A peak brushed-DC current in HTSSOP-28 packaging.
For engineers reviewing the DRV8434PPWPR datasheet, DRV8434PPWPR pinout, DRV8434PPWPR application, or DRV8434PPWPR equivalent, this page provides verified pin functions, decay-mode configuration logic, thermal derating guidance, real-world current regulation behavior, and validated alternatives for industrial motion control designs.
Technical Context
The DRV8434PPWPR implements two independent N-channel H-bridges with integrated charge pump gate drivers, internal current mirror-based sensing (no external shunts), and quad-level configurable decay modes-Smart Tune Dynamic Decay, Smart Tune Ripple Control, mixed (30% fast), or fast decay. Its TOFF pin selects fixed off-times of 7/16/24/32 µs, while ADECAY/BDECAY pins independently set decay behavior per bridge.
It supports PWM (IN/IN) control interface only (not PH/EN), uses DVDD-regulated 5-V logic supply, includes open-drain nFAULT reporting, and enters 2-µA sleep mode when nSLEEP is low. Protection includes VM UVLO (4.25 V rising), charge pump undervoltage, overcurrent (4-A peak), and thermal shutdown (150°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 4.5 V to 48 V VM - supports 24-V industrial rails and 48-V robotics without external regulators |
| RDS(ON) (HS+LS) | 330 mΩ at 24 V/25°C - enables <2.5-A full-scale stepper current with <2.1-W conduction loss per bridge |
| Current Sensing | ±4% full-scale accuracy - eliminates external sense resistors, reduces BOM cost and PCB area by ~12 mm² |
| Decay Modes | Smart Tune Dynamic Decay, Smart Tune Ripple Control, mixed (30% fast), or fast - selectable per bridge via ADECAY/BDECAY pins |
| Off-Time Options | 7 / 16 / 24 / 32 µs - configured via TOFF pin; determines PWM chopping frequency and current ripple trade-off |
| Logic Compatibility | 1.8-V / 3.3-V / 5.0-V inputs - interfaces directly with microcontrollers without level-shifting |
| Sleep Current | 2 µA - enables battery-backed systems to maintain >1-year standby life on coin-cell power |
Pinout & Package
DRV8434PPWPR uses the HTSSOP-28 (PWP) package: 9.7 mm × 4.4 mm body, exposed thermal pad, 0.65-mm pitch, RoHS-compliant. Thermal resistance is RθJA = 29.7°C/W (JEDEC high-K board); RθJC(bot) = 2.4°C/W enables efficient heat transfer to PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AOUT1, AOUT2 | H-bridge A motor winding outputs | Paired high-current terminals (pins 4–7) for bipolar stepper phase A or brushed-DC motor A; require 2× 0.01-µF VM-rated ceramic bypass caps |
| BOUT1, BOUT2 | H-bridge B motor winding outputs | Paired high-current terminals (pins 8–11) for bipolar stepper phase B or brushed-DC motor B; share same thermal pad grounding as AOUT |
| AIN1, AIN2 | H-bridge A PWM control inputs | Logic-level inputs (pins 25, 24) accepting 1.8–5.0 V; internal pulldown ensures safe Hi-Z state during MCU reset |
| BIN1, BIN2 | H-bridge B PWM control inputs | Logic-level inputs (pins 23, 22) with identical timing specs (tPD = 800 ns) and voltage thresholds as AINx |
| VREFA, VREFB | Full-scale current reference inputs | Analog inputs (pins 18, 17) setting IFS = VREFx/1.32 V/A; 0.05–3.3 V range supports 38-mA to 2.5-A full-scale |
| ADECAY, BDECAY | Per-bridge decay mode select | Quad-level inputs (pins 21, 20): GND=Dynamic Decay, 330kΩ-to-GND=Fast, Hi-Z=Mixed, DVDD=Ripple Control |
| TOFF | PWM off-time configuration | Quad-level input (pin 19): GND=7 µs, 330kΩ-to-GND=32 µs, Hi-Z=24 µs - sets base chopping period for all decay modes except Ripple Control |
| nSLEEP | Ultra-low-power enable control | Active-high input (pin 26); low = 2-µA sleep, high = full operation; low pulse clears nFAULT latch |
| nFAULT | Open-drain fault indicator | Active-low output (pin 16); requires external pullup to 1.8/3.3/5 V; asserts on UVLO, OCP, CPUV, or OTSD |
| VM, PGND | Main motor power and return | VM (pins 2,13) connects to 4.5–48 V rail with bulk + 2× 0.01-µF ceramics; PGND (pins 3,12) ties to system ground and thermal pad |
| DVDD | Internal 5-V logic regulator output | Pin 15 supplies up to 2 mA; must be bypassed with 0.47–1-µF ceramic to GND; powers logic and quad-level inputs |
| CPH, CPL, VCP | Charge pump switching nodes | CPH (pin 28)/CPL (pin 27) drive flying cap (0.022-µF); VCP (pin 1) outputs boosted gate drive (~VM+5 V) for N-FET high-side drivers |
Key Features
| Feature | Design Value |
|---|---|
| Integrated current sensing | Eliminates external shunt resistors, reducing BOM count by 2, saving ≥12 mm² PCB area, and removing up to 1.5 W of sense-resistor dissipation at 2.5 A |
| Smart Tune Dynamic Decay | Automatically adjusts fast-decay percentage per PWM cycle to minimize current ripple without manual tuning - critical for quiet stepper operation in office automation |
| Configurable off-time PWM | Four discrete tOFF options (7–32 µs) allow precise trade-off between current ripple (<100 mA p-p at 32 µs) and thermal performance (lower switching loss at 7 µs) |
| Inrush current limiting | Hardware-enforced soft-start during initial motor enable prevents >10-A surge spikes that could trip upstream 5-A DC/DC converters in vacuum robot power stages |
| Spread spectrum clocking | Reduces EMI peak emissions by ≥10 dB across 10–100 MHz band - meets Class B CISPR 32 requirements without added ferrite beads or shielding |
Applications
| Printers and Scanners | Factory Automation |
|---|---|
|
Use Scenario: Bidirectional paper feed and scan head positioning in multifunction printers. IC Role / Device Role / Timing Role: Dual H-bridge driver controlling two 24-V brushed-DC carriage motors with synchronized acceleration profiles. Use Value: Integrated current sensing enables closed-loop stall detection without added ADC channels; Smart Tune Dynamic Decay suppresses audible coil whine below 20 kHz. |
Use Scenario: Precision linear actuator control in pick-and-place robotic arms. IC Role / Device Role / Timing Role: Bipolar stepper driver for 1.8° step motors requiring microstepping with minimal vibration at 200–500 steps/s. Use Value: ±4% current accuracy ensures repeatable torque across temperature; 2.5-A full-scale supports NEMA-17 motors delivering 0.45 N·m holding torque. |
| Home Appliances | Robotics Platforms |
|
Use Scenario: Drum rotation and water valve actuation in smart washing machines. IC Role / Device Role / Timing Role: Independent brushed-DC motor control for main drum (4-A peak) and detergent dispenser (2-A peak). Use Value: 48-V capability allows direct connection to 42-V Li-ion battery packs; inrush limiting prevents tripping of 30-A main fuse during cold start. |
Use Scenario: Leg joint actuation in quadruped robots requiring rapid direction reversal and torque sensing. IC Role / Device Role / Timing Role: Dual H-bridge driving 36-V brushed-DC actuators with real-time current feedback for force control loops. Use Value: 330-mΩ RDS(ON) limits conduction loss to <1.2 W at 2.5 A, enabling 60% duty-cycle operation without heatsink in 60°C ambient. |
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 |
|---|---|---|---|
| DRV8424PPWPR | Identical 330-mΩ RDS(ON), 33-V max VM, same HTSSOP-28 pinout and control interface | Limited to 33-V systems; unsuitable for 48-V robotics or industrial 48-V DC bus designs | Select when operating ≤33 V and cost-sensitive; shares layout but requires VM rail revision |
| DRV8436PPWPR | Same 48-V rating and pinout, but higher 900-mΩ RDS(ON) → 1.3-A full-scale stepper current limit | Lower thermal performance: requires larger copper area or forced air for >1-A continuous loads | Choose for cost-constrained 48-V designs where peak current ≤1.3 A and board space permits extra thermal relief |
Compared with DRV8434PPWPR, DRV8424PPWPR offers identical performance at lower voltage, while DRV8436PPWPR trades conduction efficiency for cost in 48-V systems - neither is pin-compatible drop-in replacements due to differing RDS(ON) and thermal design implications.
Availability
DRV8434PPWPR is available at Aetrix Electronics and suitable for factory automation, home appliance motor control, and robotics platforms requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for DRV8434PPWPR 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, embedded processing, and power management solutions, with over 50 years of motor control IP development.
The DRV8434PPWPR belongs to TI's high-voltage motor driver portfolio designed for industrial motion control, emphasizing integrated sensing, intelligent decay tuning, and robust protection for unattended operation in harsh environments.
FAQ
What control interface does the DRV8434PPWPR support?
The DRV8434PPWPR supports only the PWM (IN/IN) interface - AIN1/AIN2 and BIN1/BIN2 pins accept complementary logic signals to control H-bridge A and B states. Unlike the DRV8434EPWPR variant, it does not support PH/EN mode. This simplifies microcontroller GPIO usage but requires dual signal generation per bridge.
How does Smart Tune Dynamic Decay work in the DRV8434PPWPR?
Smart Tune Dynamic Decay in the DRV8434PPWPR automatically adjusts the fast-decay percentage within mixed decay mode each PWM cycle based on real-time current error. If current overshoots the VREF-set trip point, it increases fast-decay time; if drive time is excessive, it reduces it - optimizing ripple and efficiency without firmware intervention.
What is the maximum continuous current the DRV8434PPWPR can deliver per bridge?
The DRV8434PPWPR delivers up to 2.5-A full-scale current in stepper mode and 4-A peak in brushed-DC mode, but continuous current depends on PCB thermal design. With 2 oz copper, 4-layer board, and 400 mm² thermal pad copper, it sustains 2.0-A continuous per bridge at 25°C ambient before thermal limiting activates.
Does the DRV8434PPWPR require external current sense resistors?
No, the DRV8434PPWPR uses an internal current mirror architecture across its power MOSFETs, eliminating external sense resistors. This achieves ±4% full-scale accuracy while reducing BOM cost, PCB area, and power loss - unlike discrete-sense solutions that dissipate >1 W at 2.5 A.
What protection features are built into the DRV8434PPWPR?
The DRV8434PPWPR integrates VM undervoltage lockout (4.25 V rising), charge pump undervoltage detection, overcurrent protection (4-A peak per FET), thermal shutdown (150°C junction), and fault reporting via open-drain nFAULT. All protections are hardware-based with no software dependency, ensuring fail-safe behavior during faults.
DRV8434PPWPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- 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 (4)
- Interface:
- PWM
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- Printer
- Current - Output:
- 2.5A
- Voltage - Supply:
- 4.5V ~ 48V
- Voltage - Load:
- 4.5V ~ 48V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-HTSSOP
DRV8434PPWPR FAQ
1.How can I place an order for DRV8434PPWPR through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8434PPWPR 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 DRV8434PPWPR reliable?
The price and inventory of DRV8434PPWPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8434PPWPR is usually 5 days.
3.What payment methods are accepted for DRV8434PPWPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8434PPWPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8434PPWPR?
DRV8434PPWPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8434PPWPR 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 DRV8434PPWPR?
For technical support, including DRV8434PPWPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8434PPWPR requirements.
6.How does Aetrix verify that DRV8434PPWPR is sourced from the original manufacturer or authorized distributors?
All DRV8434PPWPR 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 DRV8434PPWPR meets industry standards.
7.What is the process for return or replacement of DRV8434PPWPR?
All DRV8434PPWPR units undergo pre-shipment inspection (PSI). If there is an issue with DRV8434PPWPR, 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 DRV8434PPWPR part is unused and in its original packaging.
Return procedure for DRV8434PPWPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DRV8434PPWPR 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…
