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Texas Instruments DRV8425PPWPR
- Part No.:
- DRV8425PPWPR
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DRV8425PPWPR.pdf
- Description:
- 35V, 2A BIPOLAR STEPPER OR DUAL
- Quantity:
- Payment:
- Shipping:
Inventory:2,249
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Product details
Overview
DRV8425PPWPR from Texas Instruments is a dual H-bridge motor driver IC designed for bipolar stepper and brushed-DC motor control in industrial motion systems. It delivers 2-A full-scale stepper current or 3.2-A peak brushed-DC current, operates from 4.5 V to 33 V, features integrated current sensing (±5% accuracy), and supports PHASE/ENABLE control interface. It targets compact, thermally constrained applications such as office automation actuators and robotic joint drivers.
For engineers reviewing the DRV8425PPWPR datasheet, DRV8425PPWPR pinout, DRV8425PPWPR application, or DRV8425PPWPR equivalent, key selection considerations include its HTSSOP-28 package thermal performance (RθJA = 31.0°C/W), Smart Tune Dynamic Decay mode, 550 mΩ total RDS(ON) at 24 V/25°C, and compatibility with 1.8-V/3.3-V/5-V logic inputs.
Technical Context
The DRV8425PPWPR integrates two N-channel H-bridges with internal current-sense MOSFETs and a charge pump regulator, eliminating external sense resistors. Its current regulation uses an adjustable off-time PWM scheme with four configurable tOFF values (7/16/24/32 µs) and quad-level decay mode selection (Smart Tune Dynamic Decay, Smart Tune Ripple Control, mixed, or fast).
Control is implemented via PHASE/ENABLE (PH/EN) interface - not PWM - with independent A/B bridge enable (AEN/BEN) and phase (APH/BPH) inputs. Fault reporting is handled through open-drain nFAULT with UVLO, OCP (3.2-A threshold), CPUV, and OTSD protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 33 V - supports wide-input industrial power rails without external regulators |
| Full-Scale Stepper Current | 2 A - sets maximum continuous winding current for bipolar stepper operation |
| Peak Brushed-DC Current | 3.2 A per bridge - defines short-duration drive capability for bidirectional DC motors |
| Total RDS(ON) | 550 mΩ (HS + LS) at 24 V/25°C - determines conduction loss and thermal dissipation at rated load |
| Current Sense Accuracy | ±5% full-scale - enables precise closed-loop current control without calibration |
| Sleep Current | 2 µA - minimizes standby power in battery- or energy-sensitive systems |
| Logic Input Compatibility | 1.8 V / 3.3 V / 5.0 V - ensures interoperability with diverse microcontrollers and FPGAs |
Pinout & Package
DRV8425PPWPR is housed in a 28-pin HTSSOP (PWP) package with PowerPAD™ thermal pad (9.7 mm × 4.4 mm nominal body size), optimized for PCB heat spreading and high-power density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AOUT1, AOUT2 | H-bridge A motor outputs | Connect directly to one stepper winding or brushed-DC motor terminals; support bidirectional current flow |
| BOUT1, BOUT2 | H-bridge B motor outputs | Connect directly to second stepper winding or independent brushed-DC motor; electrically isolated from A-side |
| APH, BPH | Phase control inputs | Determine current direction (forward/reverse) per bridge; require 1.5–5.5 V logic-high for forward drive |
| AEN, BEN | Bridge enable inputs | Enable/disable respective H-bridge output stage; logic-low places outputs in high-impedance state |
| VREFA, VREFB | Current reference inputs | Set full-scale chopping current via external voltage (0.05–2.64 V range for DRV8425P); define IREG = VREFx / 1.32 V/A |
| nFAULT | Fault indicator output | Open-drain signal pulled low during UVLO, OCP, CPUV, or OTSD; requires external pullup resistor |
| nSLEEP | Sleep mode control | Logic-low activates ultra-low-power sleep (2 µA); low pulse clears latched faults |
| TOFF | Off-time configuration | Quad-level input selecting 7/16/24/32 µs PWM off-time; determines current ripple and decay behavior |
| ADECAY, BDECAY | Decay mode selection | Quad-level pins configuring Smart Tune Dynamic Decay, Ripple Control, mixed (30% fast), or fast decay per bridge |
| VM, PGND, GND | Power supply connections | VM (motor supply) and PGND must be bypassed with dual 0.01-µF ceramics; GND is logic ground reference |
| VCP, CPH, CPL | Charge pump circuit | VCP supplies gate drive; CPH/CPL require 0.022-µF X7R ceramic capacitor; VCP needs 0.22-µF to VM |
| DVDD | Internal LDO output | 5.0 V ±5% regulated supply for logic; bypass with 0.47–1 µF ceramic to GND |
Key Features
| Feature | Design Value |
|---|---|
| Integrated current sensing | Eliminates external shunt resistors, saving >15 mm² board area and reducing BOM cost and power loss |
| Smart Tune Dynamic Decay | Automatically optimizes decay mode cycle-by-cycle to minimize current ripple without manual tuning |
| Configurable off-time PWM | Four discrete tOFF settings (7/16/24/32 µs) allow trade-off between ripple, efficiency, and torque stability |
| Spread spectrum clocking | Reduces EMI peak emissions by distributing switching noise across frequency band |
| Inrush current limiting | Prevents overcurrent during brushed-DC motor startup, improving system reliability |
| Low-quiescent sleep mode | 2 µA shutdown current enables multi-year battery life in portable or IoT motor systems |
Applications
| Printers and Scanners | Office Automation |
|---|---|
Use Scenario: Precision paper feed and carriage positioning in multifunction printers. IC Role / Device Role / Timing Role: Dual H-bridge driver controlling stepper motors for paper transport and scan head movement. Use Value: Smart Tune Dynamic Decay reduces audible noise and vibration during low-speed scanning, improving user experience. |
Use Scenario: Motorized document handlers, adjustable desks, and smart blinds. IC Role / Device Role / Timing Role: Bipolar stepper driver for quiet, accurate angular positioning of mechanical linkages. Use Value: Integrated current sense and ±5% accuracy enable consistent torque across temperature and supply variations. |
| Factory Robotics | Vacuum & Toy Robotics |
Use Scenario: Joint actuation in collaborative robotic arms and pick-and-place end-effectors. IC Role / Device Role / Timing Role: Dual brushed-DC driver powering reversible gearmotors for gripper and wrist control. Use Value: 3.2-A peak current and 550 mΩ RDS(ON) support rapid acceleration/deceleration within thermal limits. |
Use Scenario: Compact motor control in consumer-grade robotic vacuums and educational kits. IC Role / Device Role / Timing Role: Single-chip solution driving both main drive and brush motors in space-constrained enclosures. Use Value: HTSSOP-28 package with PowerPAD enables high-current operation without heatsinks in <20 mm² footprint. |
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 | Lower RDS(ON) (330 mΩ), higher 4-A peak brushed/2.5-A stepper current rating | Better suited for higher-torque brushed-DC loads or larger stepper motors requiring >2-A full scale | Select when thermal margin or peak current demand exceeds DRV8425PPWPR capabilities |
| DRV8425PRGER | VQFN-24 package (4.0 mm × 4.0 mm), same electrical specs but different thermal resistance (RθJA = 40.7°C/W) | Preferred for ultra-compact PCBs where HTSSOP footprint is prohibitive, accepting higher junction temperature rise | Choose for space-constrained designs where thermal management via copper area is feasible |
Compared with DRV8424PPWPR, the DRV8425PPWPR trades peak current and conduction loss for lower cost and sufficient capability in mid-range motion systems; versus DRV8425PRGER, it offers superior thermal performance in the same functional family but requires more board area.
Availability
DRV8425PPWPR is available at Aetrix Electronics and suitable for printers and scanners, office automation devices, factory robotics, and vacuum/toy robotics requiring stable component supply, long-term manufacturability, and automotive-grade reliability validation.
Supply support for DRV8425PPWPR 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 IC design and industrial-grade reliability.
The DRV842xP series was developed specifically for cost-sensitive, thermally constrained industrial motion applications requiring integrated current sensing, flexible decay control, and robust protection - targeting stepper and dual brushed-DC use cases without external sense resistors.
FAQ
What control interface does the DRV8425PPWPR use?
The DRV8425PPWPR uses a PHASE/ENABLE (PH/EN) interface - not PWM - with separate APH/AEN and BPH/BEN inputs per bridge. This allows simple unidirectional speed control (via EN) and directional control (via PH) without complex dual-PWM generation. The DRV8425PPWPR is functionally identical to the DRV8425E variant except for its control interface architecture, and its pinout matches other P-suffix devices in the family.
How does the integrated current sensing work in the DRV8425PPWPR?
The DRV8425PPWPR uses an internal current mirror architecture across its power MOSFETs instead of external shunt resistors. Voltage applied to VREFA/VREFB (0.05–2.64 V) sets the full-scale current via IREG = VREFx / 1.32 V/A, achieving ±5% accuracy. This eliminates power loss in external resistors, saves PCB area, and simplifies layout - a core advantage confirmed in TI's SLOSE60B datasheet for the DRV8425PPWPR.
What decay modes are supported by the DRV8425PPWPR?
The DRV8425PPWPR supports four decay modes per bridge via ADECAY/BDECAY pins: Smart Tune Dynamic Decay (auto-optimizing), Smart Tune Ripple Control (adaptive ripple suppression), mixed decay (30% fast + 70% slow), and fixed fast decay. These are selected using quad-level voltage thresholds (GND, 330kΩ-to-GND, Hi-Z, DVDD), enabling precise current waveform shaping without firmware intervention - a documented feature of the DRV8425PPWPR.
What thermal performance can be expected from the DRV8425PPWPR in HTSSOP-28 package?
The DRV8425PPWPR in HTSSOP-28 (PWP) package has a junction-to-ambient thermal resistance (RθJA) of 31.0°C/W under standard JEDEC conditions. With its 550 mΩ RDS(ON) and 3.2-A peak current capability, this enables ~2.5 W of continuous power dissipation before reaching 150°C junction limit - verified in TI's thermal characterization data for the DRV8425PPWPR and confirmed by its recommended PCB copper pour guidelines.
Does the DRV8425PPWPR support sleep mode, and how is it activated?
Yes, the DRV8425PPWPR supports ultra-low-power sleep mode drawing only 2 µA typical. It is activated by pulling the nSLEEP pin low; a low pulse also clears latched fault conditions (UVLO, OCP, OTSD). Wake-up time is 0.8–1.2 ms, and the device retains all register states - a critical feature for battery-powered or energy-harvesting applications using the DRV8425PPWPR.
DRV8425PPWPR 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 (2)
- Interface:
- PWM
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- Consumer, Industrial
- Current - Output:
- 2A
- Voltage - Supply:
- 0V ~ 5.5V
- Voltage - Load:
- 4.5V ~ 33V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-HTSSOP
DRV8425PPWPR FAQ
1.How can I place an order for DRV8425PPWPR through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8425PPWPR 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 DRV8425PPWPR reliable?
The price and inventory of DRV8425PPWPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8425PPWPR is usually 5 days.
3.What payment methods are accepted for DRV8425PPWPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8425PPWPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8425PPWPR?
DRV8425PPWPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8425PPWPR 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 DRV8425PPWPR?
For technical support, including DRV8425PPWPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8425PPWPR requirements.
6.How does Aetrix verify that DRV8425PPWPR is sourced from the original manufacturer or authorized distributors?
All DRV8425PPWPR 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 DRV8425PPWPR meets industry standards.
7.What is the process for return or replacement of DRV8425PPWPR?
All DRV8425PPWPR units undergo pre-shipment inspection (PSI). If there is an issue with DRV8425PPWPR, 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 DRV8425PPWPR part is unused and in its original packaging.
Return procedure for DRV8425PPWPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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