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Texas Instruments DRV8884RHRT
- Part No.:
- DRV8884RHRT
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 28-WFQFN Exposed Pad
- Datasheet:
-
DRV8884RHRT.pdf
- Description:
- SENSOR MAGNETIC HALL EFFECT
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
DRV8884RHRT from Texas Instruments is a 1.0-A full-scale, 0.7-A RMS PWM microstepping stepper motor driver with integrated current sense, 8–37 V supply range, and 1/16 microstepping capability. It integrates dual N-channel H-bridges, a microstepping indexer, and adaptive blanking time control - enabling precise bipolar stepper control in compact industrial motion systems such as 3D printer axes and video security camera pan/tilt mechanisms.
For engineers reviewing the DRV8884RHRT datasheet, DRV8884RHRT pinout, DRV8884RHRT application, or DRV8884RHRT equivalent, this page delivers verified electrical parameters, thermal performance data, STEP/DIR interface timing, decay mode configuration options, and real-world design implications for PCB layout, current regulation accuracy (±6.25%), and sleep-mode power optimization (20 µA).
Technical Context
The DRV8884RHRT implements fixed off-time PWM current regulation with selectable slow/mixed decay modes and adaptive blanking time scaling based on output current level. Its microstepping indexer supports full-step through 1/16-step modes plus non-circular 1/2-step for higher torque at elevated RPM.
Current sensing is achieved via internal transimpedance amplifiers (28.1–31.9 kΩ gain) referenced to RREF, eliminating external sense resistors while maintaining ±6.25% full-scale accuracy. Protection includes VM UVLO (7.8 V trip), charge pump undervoltage detection, overcurrent shutdown (1.7 A peak), and thermal shutdown (150 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1.0-A full-scale / 0.7-A RMS per bridge - defines maximum continuous sinusoidal drive capability under thermal limits at 24 V, 25°C with proper PCB ground plane |
| Supply Voltage Range | 8 V to 37 V - supports wide-input industrial motor supplies; UVLO activates below 7.8 V falling |
| Microstepping Resolution | Up to 1/16 step - enables smooth low-speed operation and high positional resolution without external controller interpolation |
| RDS(ON) (HS + LS) | 1.4 Ω total at 24 V, 25°C - determines conduction loss and thermal rise; split as ~798 mΩ HS + ~749 mΩ LS |
| Current Sense Accuracy | ±6.25% full-scale - sets closed-loop current regulation tolerance; no external sense resistors required |
| Sleep Mode Current | 20 µA at 25°C - enables ultra-low-power standby in battery-backed or energy-conscious motion systems |
| STEP Input Frequency | Up to 500 kHz - defines maximum step rate; actual system bandwidth limited by motor inductance and load |
Pinout & Package
The DRV8884RHRT is packaged in a 28-pin WQFN (RHR) with 5.5 mm × 3.5 mm body size and exposed thermal pad for enhanced heat dissipation. Pin functions are validated per TI SLVSDA5E datasheet Rev. E (March 2020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AOUT1, AOUT2 | Winding A H-bridge outputs | Drive one phase of bipolar stepper; require low-inductance routing and Kelvin connection to motor |
| BOUT1, BOUT2 | Winding B H-bridge outputs | Drive second phase; complementary switching with AOUT pair defines stepping direction and microstep position |
| STEP, DIR | Digital control inputs | STEP rising edge advances indexer state; DIR logic level selects forward/reverse sequence (internal pulldown) |
| M0, M1 | Tri-level microstep mode select | Configure 1/16, 1/8, 1/4, 1/2, full-step, or non-circular 1/2-step via resistor-to-ground or Hi-Z states |
| RREF | Analog current reference input | Resistor-to-GND sets full-scale current (1.0 A max); transimpedance gain = 30 kΩ typical |
| nFAULT | Open-drain fault indicator | Pulled low on UVLO, OCP, TSD, or CPUV; requires external pullup (≥4.7 kΩ) to DVDD or VCC |
| nSLEEP | Low-power enable control | Logic low enters 20 µA sleep mode; wake-up time = 0.85–1.5 ms; internal pulldown |
| VCP, CPH, CPL | Charge pump power nodes | VCP = 0.22 µF cap to VM; CPH/CPL = 0.022 µF cap across; enables gate drive above VM for N-FETs |
Key Features
| Feature | Design Value |
|---|---|
| Integrated current sense | Eliminates two high-power external sense resistors; reduces board area, BOM cost, and thermal footprint |
| Adaptive blanking time | Automatically scales minimum drive time with output current to suppress zero-crossing distortion at low microstep currents |
| Torque DAC (TRQ pin) | Tri-level digital input scales full-scale current without changing RREF resistor - enables dynamic torque adjustment in runtime |
| Non-circular 1/2-step mode | Delivers higher holding torque at mid-range speeds versus standard half-step - improves acceleration in constrained inertia loads |
| Thermal protection with hysteresis | Shuts down at 150 °C junction temperature; restarts after 20 °C cooldown - prevents thermal runaway during overload or poor heatsinking |
Applications
| 3D Printer Motion Control | Video Security Camera Pan/Tilt |
|---|---|
Use Scenario: Precise layer-by-layer extruder and gantry positioning requiring sub-millimeter repeatability and vibration-free low-speed movement. IC Role / Device Role / Timing Role: Stepper motor driver executing 1/16 microsteps with adaptive blanking and torque DAC for quiet, high-resolution motion profiling. Use Value: Enables smooth print quality at 30–60 mm/s without resonance artifacts; sleep mode cuts idle power by >99.9% versus active operation. |
Use Scenario: Continuous bidirectional rotation of PTZ camera modules with silent operation and accurate angular positioning under varying ambient temperatures. IC Role / Device Role / Timing Role: Bipolar stepper driver using DIR-controlled reversal and M0/M1-configured 1/8-step mode for balanced speed/torque trade-off. Use Value: Integrated current sense ensures consistent torque across –40°C to +125°C ambient; nFAULT reporting enables firmware-based fault recovery. |
| Automatic Teller Machine (ATM) Mechanism | Office Automation Scanner Transport |
Use Scenario: Reliable paper handling, cash dispensing, and card reader actuation where long-term reliability and fault resilience are critical. IC Role / Device Role / Timing Role: Motor driver with UVLO, OCP, and thermal shutdown protecting against jam-induced stall currents and power rail sag. Use Value: 1.7-A peak OCP threshold prevents MOSFET destruction during paper jams; nFAULT pin signals host MCU for safe shutdown and retry logic. |
Use Scenario: High-duty-cycle document feeding and scanning where compact size, low heat generation, and consistent step accuracy are essential. IC Role / Device Role / Timing Role: Compact WQFN-packaged driver delivering 0.7-A RMS current with minimal thermal derating on FR4 PCBs. Use Value: 33.6 °C/W RθJA (WQFN) allows full-rated current without external heatsink; DVDD/AVDD LDOs simplify power tree. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stepper motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV8886APWPR | 2.5-A peak, 1.75-A RMS, HTSSOP-24 package; lacks integrated current sense - requires external 0.1-Ω sense resistors | Better suited for higher-current printers or CNC stages; higher thermal mass but larger PCB footprint | Select when >1.0-A full-scale current or discrete current monitoring is required; not drop-in compatible due to different pinout and sensing architecture |
| STSPIN820TR | 1.3-A peak, 0.9-A RMS, 3×3 mm QFN-24; integrated current sense with ±5% accuracy; SPI interface instead of STEP/DIR | Ideal for space-constrained IoT actuators; requires SPI host firmware vs. simple GPIO control | Choose for ultra-compact designs needing digital diagnostics; incompatible STEP/DIR interface means controller redesign required |
Compared with DRV8884RHRT, DRV8886APWPR offers higher current headroom but adds BOM cost and layout complexity from external sense resistors, while STSPIN820TR reduces size and improves accuracy but replaces the hardware-simple STEP/DIR interface with SPI dependency - making DRV8884RHRT optimal for cost-sensitive, GPIO-driven industrial motion where 1.0-A full-scale suffices.
Availability
DRV8884RHRT is available at Aetrix Electronics and suitable for 3D printer motion control, video security camera pan/tilt systems, and automatic teller machine mechanisms requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for DRV8884RHRT 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 high-reliability ICs for industrial, automotive, and communications markets.
The DRV8884RHRT belongs to TI's precision motor driver product line, engineered for compact, thermally efficient stepper control in cost-sensitive industrial equipment where integrated current sensing and STEP/DIR simplicity reduce system-level design effort.
FAQ
What is the maximum microstepping resolution supported by the DRV8884RHRT?
The DRV8884RHRT supports up to 1/16 microstepping via its internal indexer. This is configured using the M0 and M1 tri-level pins, with specific logic states selecting full-step, 1/2-step, 1/4-step, 1/8-step, 1/16-step, or non-circular 1/2-step modes. The 1/16-step mode enables fine positional resolution without requiring complex external waveform generation - a key advantage of the DRV8884RHRT in precision motion applications.
Does the DRV8884RHRT require external current sense resistors?
No, the DRV8884RHRT does not require external current sense resistors. It features fully integrated current sense functionality using internal transimpedance amplifiers referenced to the RREF pin. This eliminates two high-power external resistors, reducing board area, BOM cost, and thermal dissipation - a defining feature of the DRV8884RHRT compared to discrete-sense stepper drivers.
What is the purpose of the TRQ pin on the DRV8884RHRT?
The TRQ pin on the DRV8884RHRT is a tri-level digital input that provides dynamic torque scaling without modifying the RREF resistor. By setting TRQ to logic low, Hi-Z, or logic high, the full-scale current can be scaled to 0%, ~71%, or 100% respectively - enabling runtime power optimization and reduced acoustic noise in the DRV8884RHRT during low-load conditions like idle positioning or slow-speed tracking.
How does the DRV8884RHRT handle thermal protection?
The DRV8884RHRT incorporates thermal shutdown (TSD) that triggers at 150 °C junction temperature and includes 20 °C hysteresis for reliable recovery. When TSD activates, all FETs are disabled and the nFAULT pin is pulled low. This protection is independent of external components and ensures robust operation in sealed enclosures or high-ambient environments - a critical safeguard built into the DRV8884RHRT's silicon design.
What package type is used for the DRV8884RHRT?
The DRV8884RHRT uses a 28-pin WQFN package (RHR) with a 5.5 mm × 3.5 mm body and exposed thermal pad. This package delivers lower thermal resistance (RθJA = 33.6 °C/W) than the HTSSOP variant, supporting higher continuous current in space-constrained layouts - confirming the physical identity and thermal capability of the DRV8884RHRT as shipped.
DRV8884RHRT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- -
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (4)
- Interface:
- Logic
- Technology:
- Power MOSFET
- Step Resolution:
- 1 ~ 1/16
- Applications:
- General Purpose
- Current - Output:
- 1A
- Voltage - Supply:
- 0V ~ 5.3V
- Voltage - Load:
- 8V ~ 37V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-WQFN (5.5x3.5)
DRV8884RHRT FAQ
1.How can I place an order for DRV8884RHRT through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8884RHRT 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 DRV8884RHRT reliable?
The price and inventory of DRV8884RHRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8884RHRT is usually 5 days.
3.What payment methods are accepted for DRV8884RHRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8884RHRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8884RHRT?
DRV8884RHRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8884RHRT 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 DRV8884RHRT?
For technical support, including DRV8884RHRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8884RHRT requirements.
6.How does Aetrix verify that DRV8884RHRT is sourced from the original manufacturer or authorized distributors?
All DRV8884RHRT 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 DRV8884RHRT meets industry standards.
7.What is the process for return or replacement of DRV8884RHRT?
All DRV8884RHRT units undergo pre-shipment inspection (PSI). If there is an issue with DRV8884RHRT, 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 DRV8884RHRT part is unused and in its original packaging.
Return procedure for DRV8884RHRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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