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Texas Instruments DRV8881ERHRT
- Part No.:
- DRV8881ERHRT
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 28-WFQFN Exposed Pad
- Datasheet:
-
DRV8881ERHRT.pdf
- Description:
- IC MTR DRV BIPOLAR 6.5-45V 28QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,753
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Product details
Overview
DRV8881ERHRT from Texas Instruments is a 28-pin WQFN-packaged dual H-bridge motor driver IC designed for bipolar stepper and brushed-DC motor control in industrial motion systems. It operates from 6.5 V to 45 V, delivers up to 2.5-A peak current per bridge, supports PHASE/ENABLE interface, and features Smart Tune decay optimization - all confirmed for this exact variant. It is used in video security cameras for precise pan/tilt actuation.
For engineers reviewing the DRV8881ERHRT datasheet, DRV8881ERHRT pinout, DRV8881ERHRT application, or DRV8881ERHRT equivalent, key selection criteria include its 2.5-A peak current rating, Smart Tune-enabled adaptive decay mode, 28-WQFN thermal-pad package with 5.5 mm × 3.5 mm footprint, and compatibility with 3.3-V logic control interfaces.
Technical Context
The DRV8881ERHRT integrates two N-channel MOSFET H-bridges with integrated current-sense amplifiers, adjustable off-time PWM chopping (10/20/30 µs), and Smart Tune - an auto-tuning algorithm that dynamically selects optimal decay mode per step to minimize ripple while preserving response. Its PH/EN control interface decouples direction (APH/AEN/BPH/BEN) from enable timing, simplifying microcontroller interfacing.
Protection architecture includes VM undervoltage lockout (6.4 V threshold), charge pump fault detection, overcurrent protection (2.5-A trip), thermal shutdown (150°C), and open-drain nFAULT reporting. The internal 3.3-V/10-mA LDO powers external circuitry, and low-power sleep mode draws only 28 µA at 24 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 6.5 V to 45 V - supports wide-input industrial power rails including 12 V, 24 V, and 36 V motor supplies. |
| Peak Output Current | 2.5 A per H-bridge - sets absolute overcurrent trip limit; enables driving NEMA 17–23 stepper motors. |
| RMS Current Rating | 1.4 A per H-bridge at TA = 25°C with proper PCB thermal plane - defines continuous thermal limit under typical convection cooling. |
| Smart Tune Support | Yes - exclusive to DRV8881E variants; automatically configures decay mode (slow/mixed/fast) per step for minimal current ripple. |
| Off-Time Programmability | 10 / 20 / 30 µs via tri-level TOFF pin - determines PWM chopping frequency and average current regulation resolution. |
| Sleep Current | 28 µA at 24 V - enables ultra-low-power standby in battery-backed or energy-sensitive motion subsystems. |
| Package | 28-WQFN (5.5 mm × 3.5 mm) with exposed thermal pad - requires soldered GND connection for thermal dissipation and EMI control. |
Pinout & Package
DRV8881ERHRT uses a 28-pin WQFN package (RHR) with 0.5-mm pitch and thermally enhanced exposed pad (connected to GND). Pin numbering follows TI's top-view convention with pin 1 at bottom-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AOUT1, AOUT2 | H-bridge A output terminals | Drive one winding of bipolar stepper or terminal of brushed-DC motor; rated for 2.5-A peak, 45-V max. |
| BOUT1, BOUT2 | H-bridge B output terminals | Drive second winding or second motor; identical specs to A-side; supports independent or coordinated control. |
| APH, AEN, BPH, BEN | Phase/Enable digital inputs | PH/EN interface: APH/BPH set direction; AEN/BEN enable/disable respective bridges; 3.3-V compatible with internal pulldowns. |
| ATE | Smart Tune enable input | Must be high at power-up or wake-up to activate Smart Tune; tied to V3P3 or pulled high externally; internal pulldown. |
| AISEN, BISEN | Current sense inputs | Accept voltage from external shunt resistors; full-scale trip is 500 mV at TRQ=100%; sets peak current per bridge. |
| nFAULT | Open-drain fault indicator | Pulled low on UVLO, OCP, TSD, or CPUV; requires external pullup to V3P3 or VM; enables system-level fault handling. |
| nSLEEP | Low-power mode control | Logic high enables operation; logic low enters 28-µA sleep; internal pulldown ensures safe default state. |
| V3P3 | Internal 3.3-V regulator output | Supplies up to 10 mA; bypassed with 0.47-µF ceramic capacitor; powers external logic or sensors. |
Key Features
| Feature | Design Value |
|---|---|
| Smart Tune decay optimization | Automatically selects slow/mixed/fast decay per step to reduce current ripple without sacrificing step response time - eliminates manual decay tuning. |
| Configurable PWM off-time | Tri-level TOFF pin selects 10/20/30 µs off-time - adjusts chopping frequency and current regulation granularity for different motor inductances. |
| Torque DAC scaling | Digital TRQ0/TRQ1 pins scale full-scale current to 100%/75%/50%/25% - enables dynamic current reduction to save power or reduce heat without analog VREF changes. |
| Adaptive blanking time | Reduces minimum drive pulse width at low currents - prevents current waveform distortion during microstepping or low-speed operation. |
| Integrated 3.3-V LDO | 10-mA regulated output with 2.9–3.6 V tolerance - powers external position sensors, MCU I/O, or level shifters, reducing BOM count. |
Applications
| Video Security Cameras | Multi-Function Printers |
|---|---|
Use Scenario: Precise pan/tilt movement with smooth acceleration and silent microstepping at low speeds. IC Role / Device Role / Timing Role: Bipolar stepper driver controlling two-axis gimbal; provides current-regulated sinusoidal excitation synchronized to controller STEP pulses. Use Value: Smart Tune minimizes audible noise and vibration by eliminating current overshoot; 2.5-A peak supports high-torque gearmotor actuators. |
Use Scenario: Paper feed, scanner carriage, and duplex module actuation requiring bidirectional torque and stall recovery. IC Role / Device Role / Timing Role: Dual brushed-DC motor driver managing paper path transport and optical carriage positioning via PH/EN interface. Use Value: Independent A/B bridge control enables simultaneous paper advance and scan head movement; nFAULT reporting allows firmware-based jam detection. |
| Factory Automation | Stage Lighting Equipment |
Use Scenario: Linear actuator positioning in pick-and-place robots with real-time current monitoring for force feedback. IC Role / Device Role / Timing Role: Stepper driver with AISEN/BISEN analog outputs feeding ADC for closed-loop current sensing and load estimation. Use Value: Adjustable VREF + Torque DAC enables programmable torque limits; 45-V max supply accommodates 36-V industrial bus rails. |
Use Scenario: Gobo wheel rotation, focus adjustment, and iris control in intelligent moving-head fixtures requiring quiet, jitter-free motion. IC Role / Device Role / Timing Role: Bipolar stepper driver delivering microstepped current waveforms with minimal ripple to prevent mechanical resonance. Use Value: Smart Tune adapts decay per step to maintain smooth motion across varying motor loads and temperatures - critical for flicker-free lighting effects. |
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 |
|---|---|---|---|
| DRV8880PWPR | Same PH/EN interface and Smart Tune, but HTSSOP-28 package (9.7 mm × 6.4 mm); higher RθJA (33.1°C/W vs. 37.5°C/W). | Better suited for through-hole assembly or legacy layouts; less compact than WQFN; same thermal pad grounding requirement. | Select DRV8880PWPR if board space allows larger footprint and HTSSOP is preferred for rework or thermal mass. |
| DRV8825PWPR | No Smart Tune; fixed decay modes only; lower 2.2-A peak current; 3.3-V logic compatible but no integrated LDO. | Lacks adaptive decay and internal regulator; requires external 3.3-V rail; suitable for cost-sensitive, lower-current stepper apps. | Choose DRV8825PWPR only when Smart Tune and V3P3 LDO are not required, and peak current ≤2.2 A suffices. |
Compared with DRV8881ERHRT, DRV8880PWPR offers identical functionality in a larger thermally robust package, while DRV8825PWPR trades Smart Tune and integrated regulation for lower cost and simpler design - making DRV8881ERHRT optimal for compact, high-performance stepper systems demanding adaptive current control.
Availability
DRV8881ERHRT is available at Aetrix Electronics and suitable for video security cameras, factory automation motion controllers, and stage lighting equipment requiring stable component supply, long-term industrial lifecycle support, and guaranteed traceable sourcing.
Supply support for DRV8881ERHRT 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 motor control IP investment.
The DRV8881 product line delivers highly integrated, thermally optimized motor drivers for industrial and commercial motion systems - designed specifically for reliable, low-noise stepper and brushed-DC control in space-constrained environments.
FAQ
What is the maximum operating voltage for the DRV8881ERHRT?
The DRV8881ERHRT supports a recommended operating supply voltage range of 6.5 V to 45 V. Absolute maximum rating is 50 V, but sustained operation above 45 V risks reliability degradation. This range enables use with common industrial rails including 12 V, 24 V, and 36 V motor supplies - all verified in the official datasheet for DRV8881ERHRT.
Does the DRV8881ERHRT support microstepping?
Yes, the DRV8881ERHRT supports microstepping via external controller-generated PH/EN signals and its adjustable current regulation. While it does not integrate a step-divider, its Smart Tune, adaptive blanking, and precise 500-mV full-scale sense threshold enable clean sinusoidal current waveforms essential for smooth microstepping - confirmed for DRV8881ERHRT in TI's application notes.
How does Smart Tune work on the DRV8881ERHRT?
Smart Tune on the DRV8881ERHRT is an on-chip algorithm that automatically selects optimal decay mode (slow/mixed/fast) for each step based on real-time current error and motor behavior. It minimizes ripple while maintaining fast transient response - a feature exclusive to DRV8881E variants like DRV8881ERHRT and enabled only when ATE is held high at startup.
What package type is used for the DRV8881ERHRT?
The DRV8881ERHRT uses a 28-pin WQFN package (RHR suffix) measuring 5.5 mm × 3.5 mm with 0.5-mm pitch and an exposed thermal pad. This package is distinct from the HTSSOP variant (PWP) and requires GND-soldered thermal pad for thermal performance and EMI control - explicitly documented for DRV8881ERHRT in TI's orderable addendum.
Can the DRV8881ERHRT drive two separate brushed-DC motors?
Yes, the DRV8881ERHRT can independently drive two brushed-DC motors using its dual H-bridge architecture. Each bridge (A and B) has dedicated PH/EN inputs (APH/AEN and BPH/BEN), sense inputs (AISEN/BISEN), and outputs (AOUT1/AOUT2, BOUT1/BOUT2), enabling fully isolated bidirectional control - a capability confirmed for DRV8881ERHRT in the functional description and simplified system diagram.
DRV8881ERHRT 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:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (4)
- Interface:
- Parallel
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 1.4A
- Voltage - Supply:
- 6.5V ~ 45V
- Voltage - Load:
- 6.5V ~ 45V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-WQFN (5.5x3.5)
DRV8881ERHRT FAQ
1.How can I place an order for DRV8881ERHRT through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8881ERHRT 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 DRV8881ERHRT reliable?
The price and inventory of DRV8881ERHRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8881ERHRT is usually 5 days.
3.What payment methods are accepted for DRV8881ERHRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8881ERHRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8881ERHRT?
DRV8881ERHRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8881ERHRT 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 DRV8881ERHRT?
For technical support, including DRV8881ERHRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8881ERHRT requirements.
6.How does Aetrix verify that DRV8881ERHRT is sourced from the original manufacturer or authorized distributors?
All DRV8881ERHRT 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 DRV8881ERHRT meets industry standards.
7.What is the process for return or replacement of DRV8881ERHRT?
All DRV8881ERHRT units undergo pre-shipment inspection (PSI). If there is an issue with DRV8881ERHRT, 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 DRV8881ERHRT part is unused and in its original packaging.
Return procedure for DRV8881ERHRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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