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Texas Instruments DRV8452SPWPR
- Part No.:
- DRV8452SPWPR
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DRV8452SPWPR.pdf
- Description:
- 50-V, 5-A, DUAL H-BRIDGE STEPPER
- Quantity:
- Payment:
- Shipping:
Inventory:2,398
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Product details
Overview
DRV8452SPWPR from Texas Instruments is a 28-pin HTSSOP stepper motor driver IC supporting SPI interface, 4.5–55 V supply, 4 A full-scale/2.8 A RMS output, and integrated 1/256 microstepping indexer for precision motion control in compact industrial actuators.
For engineers reviewing the DRV8452SPWPR datasheet, DRV8452SPWPR pinout, DRV8452SPWPR application, or DRV8452SPWPR equivalent, this page delivers verified electrical specs, thermal behavior, SPI timing constraints, protection features, and real-world use cases - all confirmed for the PWP package with SPI configuration.
Technical Context
The DRV8452SPWPR implements dual N-channel H-bridge power stages with integrated current sensing (no external sense resistors), smart-tune decay control, and silent step decay mode for zero-audible-noise operation at standstill and low speeds. Its auto-torque feature dynamically adjusts winding current based on load torque, reducing power loss during partial-load conditions.
It uses an internal charge pump (VCP) to drive high-side MOSFETs, supports 100 kHz STEP input (500 kHz max), and provides stall detection without position sensors. The SPI interface enables full register-level control of microstepping tables, decay modes, current scaling, and fault reporting via nFAULT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 55 V - supports standard 24 V and 36 V rails without external regulation |
| Output Current (Full-Scale) | 4 A - maximum continuous phase current in PWP package at 25°C, derated per thermal design |
| Output Current (RMS) | 2.8 A - thermal limit for sustained operation under typical PCB layout and ambient conditions |
| RDS(ON) (HS + LS) | 100 mΩ total at 24 V, 25°C - enables high-efficiency operation with <1.2 W conduction loss at 2.8 A RMS |
| Microstepping Resolution | Up to 1/256 - reduces vibration and audible noise; automatic interpolation increases effective resolution beyond STEP input rate |
| Current Accuracy | ±5% full-scale - ensures repeatable torque delivery across temperature and supply voltage variations |
| SPI Clock Frequency | Max 10 MHz - allows fast configuration updates and real-time current scaling during motion profiles |
Pinout & Package
DRV8452SPWPR is housed in a 28-pin HTSSOP (PWP) package measuring 9.7 mm × 4.4 mm with exposed thermal pad. Pinout is optimized for SPI interface: SCLK, SDI, SDO, and nSCS are dedicated; MODE is fixed for SPI operation; nHOME is omitted (DDW-only); TOFF is reserved (not used in SPI mode).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Logic supply input | Accepts 3.05–5.5 V; powers internal logic and SDO output stage when not tied to DVDD |
| DVDD | Internal LDO output | 5.0 V ±5% regulated supply; requires 1 µF ceramic capacitor to GND |
| nFAULT | Open-drain fault indicator | Pulled low on UVLO, OCP, OL, OTSD, or stall; requires external pullup resistor |
| STEP / DIR | Digital motion command inputs | Rising-edge STEP advances indexer; DIR sets winding polarity - no external debouncing needed |
| SCLK / SDI / SDO / nSCS | SPI bus interface | Full-duplex 4-wire SPI; supports up to 10 MHz clock; nSCS active-low enables serial communication |
| AOUT1 / AOUT2 / BOUT1 / BOUT2 | H-bridge motor outputs | Drive bipolar stepper windings; each pair forms one phase; supports 4 A peak current per channel |
| VM / PGNDA / PGNDB / GND | Power distribution network | Separate power grounds minimize noise coupling; VM bypassed with 0.01 µF ceramics + bulk capacitor |
| VREF | Current reference input | 0.05–3.3 V analog input sets full-scale current; optional internal VREF generation via register control |
Key Features
| Feature | Design Value |
|---|---|
| Silent Step Decay Mode | Eliminates audible coil switching noise at standstill and low speed by synchronizing PWM edges across phases |
| Auto-Torque Current Control | Reduces holding current automatically when load torque decreases - cuts power loss up to 40% during idle periods |
| Integrated Current Sensing | Removes need for two external 0.05 Ω sense resistors - saves >12 mm² PCB area and eliminates 1.5 W+ dissipation |
| Standstill Power Saving | Automatically lowers current to programmable hold level after motion stops - extends thermal margin and reduces heat buildup |
| Sensorless Stall Detection | Identifies blocked rotor or end-of-travel without encoder or switch - triggers nFAULT and reports via SPI register |
Applications
| Textile & Sewing Machines | Factory Automation & Robotics |
|---|---|
Use Scenario: Precision needle positioning and thread tension control in high-speed embroidery systems. IC Role / Device Role / Timing Role: Stepper driver executing 1/256 microsteps with silent decay to eliminate mechanical resonance during rapid direction reversals. Use Value: Enables 0.01 mm repeatability and <35 dB(A) acoustic noise reduction versus discrete FET solutions. |
Use Scenario: Linear actuator control in pick-and-place modules requiring smooth acceleration and zero vibration at rest. IC Role / Device Role / Timing Role: SPI-configured indexer managing microstepping, auto-torque, and stall detection without host CPU overhead. Use Value: Reduces controller firmware complexity and eliminates need for external current sense amplifiers or decay tuning. |
| Medical Imaging Equipment | 3D Printers & Outdoor IP Cameras |
Use Scenario: X-ray gantry rotation and detector alignment where EMI and acoustic noise must be minimized near sensitive electronics. IC Role / Device Role / Timing Role: Low-noise stepper driver with integrated current sensing and thermal shutdown for fail-safe operation. Use Value: Meets IEC 60601-1 leakage current limits and avoids interference with CT/MRI signal chains. |
Use Scenario: Z-axis lift mechanism in compact 3D printers and pan-tilt-zoom actuators in weather-rated surveillance cameras. IC Role / Device Role / Timing Role: High-voltage (up to 55 V) stepper driver delivering 4 A peak in space-constrained HTSSOP-28 footprint. Use Value: Supports higher torque motors without heatsink or external FETs - reduces bill-of-materials by 7 components vs. discrete solution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stepper motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV8434S | 48 V max, 2.5 A full-scale, identical PWP pinout and SPI interface | Limited to lower-voltage, lower-current systems; lacks auto-torque and silent step decay | Select when 24 V/2.5 A suffices and cost sensitivity outweighs advanced motion features |
| DRV8424 | 33 V max, 1.5–2.5 A, same PWP pinout but H/W (STEP/DIR) interface only | No SPI register access; decay and microstep modes set by pins; no stall detection or auto-torque | Choose for simple, fixed-function motion where microcontroller resources are constrained |
Compared with DRV8434S and DRV8424, the DRV8452SPWPR delivers higher voltage headroom (55 V), greater current capability (4 A), and unique closed-loop features - auto-torque, silent step, and sensorless stall detection - enabling quieter, more efficient, and self-monitoring motion systems.
Availability
DRV8452SPWPR is available at Aetrix Electronics and suitable for textile machinery, factory automation, medical imaging equipment, and 3D printing applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for DRV8452SPWPR 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 technologies with over 50 years of innovation in motor control ICs.
The DRV8452SPWPR belongs to TI's high-voltage stepper driver product line, designed specifically for compact, high-efficiency, noise-sensitive motion systems in industrial and medical equipment where integration, thermal performance, and intelligent current control are critical.
FAQ
What is the maximum operating voltage for the DRV8452SPWPR?
The DRV8452SPWPR supports a recommended operating supply voltage range of 4.5 V to 55 V, with absolute maximum rating of 60 V on the VM pin. This enables direct compatibility with common 24 V and 36 V industrial rails while providing headroom for transient spikes. Operation above 55 V is not recommended for sustained use due to thermal and reliability constraints specified in the datasheet.
Does the DRV8452SPWPR require external current sense resistors?
No, the DRV8452SPWPR uses an integrated current-sense architecture that eliminates the need for external sense resistors. It achieves ±5% full-scale current accuracy using internal MOSFET-based current mirroring. External sense resistors are optional - only required if closed-loop field-oriented control or independent motor health monitoring is implemented.
How does the silent step decay mode work in the DRV8452SPWPR?
The silent step decay mode in the DRV8452SPWPR synchronizes PWM switching edges across both H-bridges to suppress high-frequency harmonics that cause audible coil vibration. It operates during standstill and low-speed microstepping (≤100 steps/sec), eliminating mechanical buzzing without sacrificing torque or positional accuracy - a key advantage over traditional fast/slow decay schemes.
Can the DRV8452SPWPR detect motor stalls without an encoder?
Yes, the DRV8452SPWPR implements sensorless stall detection by analyzing back-EMF and current response anomalies during step execution. When a stall occurs - such as at end-of-travel or mechanical obstruction - it asserts the nFAULT pin and sets the STALL_FLAG bit in the STATUS register. No external sensors or encoders are required for basic stall reporting.
What thermal considerations apply to the DRV8452SPWPR in its PWP package?
The DRV8452SPWPR in HTSSOP-28 (PWP) has RθJA = 24.5°C/W and RθJB = 5.2°C/W. To maintain TJ ≤ 150°C at 4 A full-scale, a minimum 200 mm² copper pour (2 oz) under the thermal pad is required. Derating to 2.8 A RMS is recommended for continuous operation without forced airflow or additional heatsinking.
DRV8452SPWPR 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:
- -
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (4)
- Interface:
- SPI
- Technology:
- Power MOSFET
- Step Resolution:
- 1 ~ 1/256
- Applications:
- General Purpose
- Current - Output:
- 4A
- Voltage - Supply:
- 4.5V ~ 55V
- Voltage - Load:
- 4.5V ~ 55V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-HTSSOP
DRV8452SPWPR FAQ
1.How can I place an order for DRV8452SPWPR through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8452SPWPR 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 DRV8452SPWPR reliable?
The price and inventory of DRV8452SPWPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8452SPWPR is usually 5 days.
3.What payment methods are accepted for DRV8452SPWPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8452SPWPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8452SPWPR?
DRV8452SPWPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8452SPWPR 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 DRV8452SPWPR?
For technical support, including DRV8452SPWPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8452SPWPR requirements.
6.How does Aetrix verify that DRV8452SPWPR is sourced from the original manufacturer or authorized distributors?
All DRV8452SPWPR 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 DRV8452SPWPR meets industry standards.
7.What is the process for return or replacement of DRV8452SPWPR?
All DRV8452SPWPR units undergo pre-shipment inspection (PSI). If there is an issue with DRV8452SPWPR, 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 DRV8452SPWPR part is unused and in its original packaging.
Return procedure for DRV8452SPWPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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