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Texas Instruments DRV8711DCP
- Part No.:
- DRV8711DCP
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 38-PowerTFSOP (0.173", 4.40mm Width)
- Datasheet:
-
DRV8711DCP.pdf
- Description:
- IC MTR DRV BIPOLR 8-52V 38HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,372
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Product details
Overview
DRV8711DCP from Texas Instruments is a stepper motor pre-driver IC that controls external N-channel MOSFETs to drive bipolar stepper motors or dual brushed DC motors. It integrates a 1/256-step microstepping indexer, supports 8.0 V to 52 V motor supply voltage, features SPI programmability for torque, decay mode, and stall detection, and delivers ultra-smooth motion in office automation and robotics applications.
For engineers reviewing the DRV8711DCP datasheet, DRV8711DCP pinout, DRV8711DCP application, or DRV8711DCP equivalent, key selection considerations include its external-FET gate drive architecture, configurable mixed-decay current regulation, BEMF-based stall detection capability, and compatibility with MCU-controlled STEP/DIR or direct PWM interfaces.
Technical Context
The DRV8711DCP implements two independent H-bridge pre-driver channels (A and B), each with high-side and low-side gate drivers capable of sourcing up to 200 mA and sinking up to 400 mA. Its fixed-off-time PWM current regulation uses programmable TOFF (0.5–128 µs) and blanking time (0.5–5.12 µs) to manage winding current with adaptive decay control.
SPI-configurable functions include 256-step resolution microstepping via MODE bits, torque scaling through an 8-bit DAC (256 steps, full-scale reference 2.75 V), and overcurrent protection with four selectable trip thresholds (160–1200 mV). Stall detection operates either internally or via analog BEMF output on pin 20.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Motor Supply Voltage | 8.0 V to 52 V - supports wide-range industrial and automation motor supplies without external boost or regulation. |
| Microstep Resolution | 1/256-step - enables ultra-fine position control and vibration reduction in precision motion systems. |
| Gate Drive Current | Up to 200 mA source / 400 mA sink - drives high-capacitance N-channel MOSFET gates directly with fast edge rates. |
| Current Sense Gain | Programmable 5×, 10×, 20×, or 40× - adapts to diverse sense resistor values (e.g., 5–50 mΩ) while maintaining ADC input range. |
| Overcurrent Threshold | Selectable 160–1200 mV - sets precise current limit across varying FET RDS(on) and thermal conditions. |
| SPI Clock Frequency | Up to 4 MHz (250 ns cycle time) - enables real-time reconfiguration of torque, decay, and fault response during operation. |
| Thermal Resistance | RθJA = 32.7 °C/W (HTSSOP-38 PowerPAD™) - supports >2 W continuous power dissipation with standard PCB copper area. |
Pinout & Package
DRV8711DCP is housed in a thermally enhanced 38-pin HTSSOP package (9.70 mm × 4.40 mm) with exposed PowerPAD™ thermal pad for efficient heat transfer to PCB ground plane. RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VM (Pin 4) | Motor power supply input | Connects to 8–52 V motor bus; requires 0.01 µF ceramic + 100 µF electrolytic bypass to GND for transient stability. |
| A1HS/A1LS/A2HS/A2LS (Pins 36,35,31,32) | Bridge A gate drive outputs | Drive external N-channel MOSFET gates; HS pins swing to VM+10 V via charge pump; LS pins swing to 10 V. |
| AISENP/AISENN (Pins 34,33) | Bridge A current sense differential inputs | Accept voltage drop across external sense resistor; gain programmable (5×–40×) to match torque DAC full-scale (2.75 V). |
| STEP/AIN1 (Pin 10) & DIR/AIN2 (Pin 11) | Indexer control inputs | Rising-edge-triggered step advance and level-sensitive direction control; internal pulldowns enable direct MCU GPIO connection. |
| SCS/SCLK/SDATI/SDATO (Pins 16,14,15,17) | SPI interface signals | 4-wire SPI with active-high chip select; SDATO is open-drain requiring external pullup; supports read/write register access at ≤4 MHz. |
| FAULTn (Pin 18) & STALLn/BEMFVn (Pin 19) | Fault and stall status outputs | Open-drain active-low indicators; FAULTn asserts for OCP, OTS, UVLO, or PDF; STALLn pulses low on internal stall detection. |
| BEMF (Pin 20) | Analog back-EMF output | Provides voltage proportional to motor back-EMF; requires 1 nF low-leakage capacitor to GND for stable sampling. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-mixed decay mode | Automatically transitions between slow and fast decay per PWM cycle based on current error-reduces audible noise and torque ripple without firmware intervention. |
| Programmable blanking time (0.5–5.12 µs) | Prevents false overcurrent trips during MOSFET switching transients by disabling current sensing during gate drive turn-on delay. |
| Integrated 5-V regulator (10-mA load) | Supplies logic-level peripherals (e.g., MCU I/O, level shifters); eliminates need for external LDO in compact designs. |
| Dual independent H-bridge control | Enables simultaneous driving of one bipolar stepper motor or two independent brushed DC motors with separate torque and decay settings. |
| Dedicated fault reporting bits via SPI | Allows software to distinguish OCP, OTS, UVLO, and phase fault conditions individually-enabling targeted recovery actions instead of blanket reset. |
Applications
| Office Automation Machines | Factory Automation |
|---|---|
Use Scenario: Precision paper feed and document scanning in multifunction printers. IC Role / Device Role / Timing Role: Stepper motor pre-driver controlling dual-axis carriage movement with 1/256 microstepping. Use Value: Eliminates mechanical resonance and positional jitter during high-speed scan sequences, improving image registration accuracy. |
Use Scenario: Linear actuator positioning in programmable logic controller (PLC)-based conveyor modules. IC Role / Device Role / Timing Role: Dual H-bridge pre-driver enabling synchronized motion of two independent axes via STEP/DIR interface. Use Value: Supports rapid acceleration/deceleration profiles with adaptive decay-reducing settling time by >30% versus fixed-decay alternatives. |
| Textile Machines | Robotics |
Use Scenario: Yarn tension control and shuttle positioning in computerized looms. IC Role / Device Role / Timing Role: Current-regulated stepper driver with stall detection feeding BEMF signal to MCU for closed-loop tension monitoring. Use Value: Detects thread breakage or slippage in real time using BEMF amplitude deviation-preventing fabric defects before they propagate. |
Use Scenario: Joint actuation in collaborative robotic arms requiring smooth, quiet, and repeatable motion. IC Role / Device Role / Timing Role: Microstepping pre-driver with programmable torque DAC and auto-mixed decay for low-vibration joint control. Use Value: Achieves <±0.05° positioning repeatability under variable load via real-time current regulation and adaptive blanking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stepper motor pre-driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TB6600HG | Lacks integrated microstepping indexer; requires external step generation; no SPI interface; fixed decay modes only. | Best suited for cost-sensitive, fixed-function systems where MCU handles all motion profiling. | Choose TB6600HG only if SPI configurability, 1/256 microstepping, and auto-mixed decay are not required. |
| MP6500 | Integrated power MOSFETs (not pre-driver); max 35 V supply; no BEMF output; smaller 28-pin TSSOP package. | Targeted at space-constrained, lower-power (<2 A) stepper applications where external FETs are unnecessary. | Select MP6500 when board area is critical and motor current stays below 2 A-DRV8711DCP remains preferred for >2 A or high-voltage (>35 V) designs. |
Compared with TB6600HG and MP6500, the DRV8711DCP uniquely combines external-FET scalability (supporting >10 A phase current), 1/256 microstepping with adaptive decay, and diagnostic BEMF output-making it optimal for high-performance, field-upgradable motion control systems.
Availability
DRV8711DCP is available at Aetrix Electronics and suitable for office automation machines, factory automation systems, and robotics applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DRV8711DCP 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 decades of expertise in motor control IC design.
The DRV8711DCP belongs to TI's high-voltage stepper motor pre-driver product line, engineered specifically for industrial motion systems demanding flexible current control, robust diagnostics, and seamless MCU integration via SPI or STEP/DIR.
FAQ
What is the maximum motor supply voltage supported by the DRV8711DCP?
The DRV8711DCP supports a recommended operating motor supply voltage range of 8.0 V to 52 V, with absolute maximum rating of 60 V. Operation above 52 V risks exceeding safe thermal limits and may trigger undervoltage lockout or overtemperature shutdown. For reliable long-term use, maintain VM within the 8–52 V window specified in the datasheet.
Does the DRV8711DCP integrate power MOSFETs, or does it require external FETs?
The DRV8711DCP is a pre-driver IC and does not integrate power MOSFETs. It requires external N-channel MOSFETs for both high-side and low-side switches in each H-bridge channel. This architecture allows system designers to select FETs optimized for voltage, current, thermal, and switching loss requirements-giving the DRV8711DCP scalability beyond monolithic drivers.
How does the DRV8711DCP implement stall detection?
The DRV8711DCP provides two stall detection methods: internal digital detection (asserting STALLn/BEMFVn pin low) and analog BEMF output (pin 20). Internal detection compares sensed back-EMF against threshold; analog BEMF delivers a continuous voltage proportional to motor speed and load-enabling custom MCU-based algorithms for early stall prediction and adaptive torque adjustment in the DRV8711DCP.
Can the DRV8711DCP drive brushed DC motors, or is it limited to stepper motors?
The DRV8711DCP can drive either a single bipolar stepper motor or two independent brushed DC motors. In direct PWM mode (enabled via PWMMODE bit), pins AIN1/AIN2 and BIN1/BIN2 directly control bridge A and B outputs-allowing forward/reverse/slow/fast decay operation for DC motors. This dual-mode capability makes the DRV8711DCP versatile across motion control topologies.
What package type and thermal characteristics define the DRV8711DCP?
The DRV8711DCP is packaged in a 38-pin HTSSOP with PowerPAD™ thermal pad (body size 9.70 mm × 4.40 mm). Its junction-to-ambient thermal resistance is 32.7 °C/W, and junction-to-board is 14.3 °C/W. The exposed pad must be soldered to a large PCB copper area tied to GND to achieve rated power dissipation-critical for sustained operation at high current and voltage.
DRV8711DCP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 38-PowerTFSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Last Time Buy
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Controller - Commutation, Direction Management
- Output Configuration:
- Pre-Driver - Half Bridge (4)
- Interface:
- SPI, Step/Direction
- Technology:
- -
- Step Resolution:
- 1 ~ 1/256
- Applications:
- General Purpose
- Current - Output:
- -
- Voltage - Supply:
- 8V ~ 52V
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 38-HTSSOP
DRV8711DCP FAQ
1.How can I place an order for DRV8711DCP through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8711DCP 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 DRV8711DCP reliable?
The price and inventory of DRV8711DCP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8711DCP is usually 5 days.
3.What payment methods are accepted for DRV8711DCP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8711DCP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8711DCP?
DRV8711DCP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8711DCP 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 DRV8711DCP?
For technical support, including DRV8711DCP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8711DCP requirements.
6.How does Aetrix verify that DRV8711DCP is sourced from the original manufacturer or authorized distributors?
All DRV8711DCP 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 DRV8711DCP meets industry standards.
7.What is the process for return or replacement of DRV8711DCP?
All DRV8711DCP units undergo pre-shipment inspection (PSI). If there is an issue with DRV8711DCP, 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 DRV8711DCP part is unused and in its original packaging.
Return procedure for DRV8711DCP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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