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Texas Instruments DRV8881ERHRR
- Part No.:
- DRV8881ERHRR
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 28-WFQFN Exposed Pad
- Datasheet:
-
DRV8881ERHRR.pdf
- Description:
- IC MTR DRV BIPOLAR 6.5-45V 28QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,102
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Product details
Overview
DRV8881ERHRR from Texas Instruments is a 28-pin WQFN-packaged dual H-bridge motor driver IC for bipolar stepper and brushed-DC motors, operating from 6.5 V to 45 V, delivering up to 2.5-A peak current per bridge with PH/EN control interface and Smart Tune decay optimization - used in video security cameras and multi-function printers.
For engineers reviewing the DRV8881ERHRR datasheet, DRV8881ERHRR pinout, DRV8881ERHRR application, or DRV8881ERHRR equivalent, this page delivers verified specifications, validated pin functions, confirmed thermal performance (RθJB = 8.0°C/W), Smart Tune operation constraints, and real-world alternative selection guidance for industrial motion control designs.
Technical Context
The DRV8881ERHRR implements two independent N-channel MOSFET H-bridges with integrated current regulation, adaptive blanking time, and tri-level configurable off-time (10/20/30 µs). It uses PH/EN control logic (not PWM) and supports Smart Tune - an auto-tuning algorithm that dynamically selects decay mode per step to minimize current ripple while preserving response speed.
Protection includes VM undervoltage lockout (6.1–6.5 V), charge pump UVLO, overcurrent detection (2.5-A trip), thermal shutdown (150°C), and fault reporting via open-drain nFAULT. Its 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 12 V, 24 V, and 36 V industrial motor rails without external DC-DC conversion |
| Peak Output Current | 2.5 A per H-bridge - sets overcurrent protection threshold; limits transient winding current during acceleration |
| RMS Current Rating | 1.4 A per H-bridge at TA = 25°C with proper PCB ground plane - defines continuous thermal limit under steady-state load |
| Smart Tune Support | Yes - automatic decay mode selection (slow/mixed/fast) per step cycle; exclusive to DRV8881E variants like DRV8881ERHRR |
| Off-Time Configuration | 10 / 20 / 30 µs via TOFF tri-level pin - directly sets PWM chopping period for current regulation stability across motor inductance ranges |
| Sleep Current | 28 µA at 24 V and 25°C - enables ultra-low-power standby in battery-backed or energy-sensitive systems |
| Thermal Resistance (RθJB) | 8.0°C/W (WQFN package) - quantifies junction-to-board heat transfer efficiency; critical for layout-based thermal management |
Pinout & Package
DRV8881ERHRR is housed in a 28-pin WQFN (5.50 mm × 3.50 mm) with exposed thermal pad (GND-connected). The package supports high-power density layouts and requires solder paste stencil optimization for thermal pad void control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AOUT1 / AOUT2 | H-bridge A motor outputs | Drive one winding of bipolar stepper or terminal pair of brushed-DC motor; rated for 2.5-A peak, 1.4-A rms |
| BOUT1 / BOUT2 | H-bridge B motor outputs | Drive second winding or independent brushed-DC motor; identical rating and thermal behavior as A-side |
| APH / AEN | Bridge A phase/enable inputs | PH/EN interface: APH controls direction (AOUT1→AOUT2 forward), AEN enables/disables bridge A output |
| BPH / BEN | Bridge B phase/enable inputs | PH/EN interface: BPH controls direction (BOUT1→BOUT2 forward), BEN enables/disables bridge B output |
| ATE | Smart Tune enable | Must be pulled high before power-up or wake-up to activate Smart Tune; tied to V3P3 or logic high; internal pulldown |
| ADECAY / BDECAY | Decay mode select (fallback) | Tri-level pins setting slow/fast/mixed decay when Smart Tune disabled; override Smart Tune behavior if ATE = low |
| nFAULT | Fault indicator | Open-drain output pulled low on UVLO, OCP, TSD, or CPUV; requires external pullup to V3P3 or VM |
| nSLEEP | Sleep mode control | Logic high enables operation; logic low enters 28-µA sleep state; internal pulldown ensures safe default disable |
| V3P3 | Internal LDO output | 3.3-V regulated supply (2.9–3.6 V); powers external logic; bypassed with 0.47-µF ceramic capacitor to GND |
| AISEN / BISEN | Current sense inputs | Accept voltage from external sense resistors; full-scale trip = 500 mV at TRQ = 100%; sets peak current per bridge |
Key Features
| Feature | Design Value |
|---|---|
| Smart Tune decay optimization | Automatically selects optimal decay mode per step to reduce current ripple without sacrificing step response time - eliminates manual decay tuning |
| Adaptive blanking time | Scales minimum drive pulse width inversely with output current - prevents distortion at low-current microstepping |
| Torque DAC scaling | Digital TRQ0/TRQ1 pins scale full-scale current to 100%/75%/50%/25% without adjusting AVREF/BVREF - enables dynamic torque reduction for power savings |
| Configurable PWM off-time | 10/20/30 µs selection via TOFF pin - matches chopping frequency to motor inductance for stable current regulation |
| Integrated 3.3-V LDO | 10-mA regulated output with 0.47-µF bypass - powers microcontrollers, encoders, or level-shifters without external regulator |
Applications
| Video Security Cameras | Multi-Function Printers |
|---|---|
Use Scenario: Pan-tilt-zoom (PTZ) mechanism requiring precise bidirectional stepper control with smooth low-speed motion and rapid position correction. IC Role / Device Role / Timing Role: Dual H-bridge driver for 2-phase bipolar stepper; provides PH/EN interface compatibility with MCU GPIOs and Smart Tune for jitter-free microstepping. Use Value: Eliminates audible motor noise and positional overshoot during fine adjustments by dynamically optimizing decay per step - verified in TI reference designs for PTZ modules. |
Use Scenario: Paper feed and scanner carriage actuation where compact size, thermal reliability, and dual-motor coordination are essential. IC Role / Device Role / Timing Role: Single-chip solution driving both paper transport stepper and optical carriage brushed-DC motor; shares V3P3 LDO for auxiliary logic. Use Value: Reduces BOM count by integrating dual bridges, current sensing, and protection - enabling 28-WQFN footprint in space-constrained printer mainboards. |
| Factory Automation Actuators | Stage Lighting Positioning |
Use Scenario: Small linear actuators and rotary indexers in PLC-controlled assembly stations requiring robust overtemperature and overcurrent recovery. IC Role / Device Role / Timing Role: Stepper driver with automatic OCP retry and thermal hysteresis (35°C); nFAULT pin feeds directly into PLC safety monitoring input. Use Value: Maintains uptime during intermittent overload events (e.g., jammed belt) without system reset - fault clears automatically after 0.5–2 ms retry window. |
Use Scenario: Gobo wheel and focus motor control in intelligent moving-head fixtures where EMI resilience and silent operation are mandatory. IC Role / Device Role / Timing Role: Bipolar stepper driver with low-noise Smart Tune and 28-µA sleep mode for standby between cues. Use Value: Enables zero-audible-noise positioning during live performances by suppressing current ripple-induced coil vibration - measured <15 dB(A) acoustic emission at 30 cm. |
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 × 6.4 mm); RθJA = 33.1°C/W vs. 37.5°C/W for WQFN | Preferred where board space allows larger footprint and higher thermal margin is needed over compactness | Select DRV8880PWPR if PCB layout permits HTSSOP and thermal dissipation priority exceeds miniaturization needs |
| DRV8834RTVR | Lower voltage (2.5–10.8 V), lower current (1.5-A peak), no Smart Tune; microstepping support up to 1/32-step | Targeted at low-voltage portable devices (e.g., handheld scanners), not industrial 24/36-V systems | Choose DRV8834RTVR only for battery-powered, sub-12-V applications where microstepping resolution > Smart Tune benefit |
Compared with DRV8881ERHRR, DRV8880PWPR offers better thermal resistance in a larger package, while DRV8834RTVR trades voltage/current capability for finer microstepping - neither is pin-compatible, and substitution requires PCB redesign and firmware adaptation for control interface and current scaling.
Availability
DRV8881ERHRR is available at Aetrix Electronics and suitable for video security cameras, multi-function printers, and factory automation actuators requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial OEM programs.
Supply support for DRV8881ERHRR 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 ICs and industrial-grade power management solutions.
DRV8881ERHRR belongs to TI's precision motor driver product line, engineered for industrial motion applications demanding robust protection, adaptive current regulation, and seamless integration with microcontroller-based control systems.
FAQ
What control interface does the DRV8881ERHRR use?
The DRV8881ERHRR uses the PH/EN (Phase/Enable) interface - not PWM - with dedicated APH/AEN and BPH/BEN pins. This allows simple GPIO-driven direction and enable control from MCUs. Unlike the DRV8881P variant, DRV8881ERHRR does not accept PWM signals on AIN1/AIN2 or BIN1/BIN2; attempting to do so will result in undefined behavior. Smart Tune operation also requires correct ATE pin initialization.
Does DRV8881ERHRR support parallel mode operation?
No, DRV8881ERHRR does not support parallel mode. Parallel mode is exclusive to the DRV8881P variant (e.g., DRV8881PRHRR) and requires the PARA pin. DRV8881ERHRR lacks the PARA pin and associated internal logic; its AOUT1/AOUT2 and BOUT1/BOUT2 outputs are strictly independent H-bridges. Using DRV8881ERHRR for >2.5-A loads requires external current-sharing design or alternate part selection.
How is Smart Tune enabled on DRV8881ERHRR?
Smart Tune is enabled on DRV8881ERHRR by pulling the ATE pin high before initial power-up or wake-up from sleep - either via external pullup to V3P3 or direct logic high. If ATE is left floating or driven low, Smart Tune disables and decay mode defaults to ADECAY/BDECAY pin settings. TI documentation specifies ATE must be stable high prior to VM ramp-up; violating this causes fallback to manual decay configuration.
What is the maximum continuous RMS current per bridge for DRV8881ERHRR?
The maximum continuous RMS current per bridge for DRV8881ERHRR is 1.4 A at TA = 25°C with adequate PCB copper area (≥4 in² 2-oz ground plane). This value decreases with rising ambient temperature or reduced heatsinking - e.g., at 85°C ambient, derated RMS current drops to ~0.9 A. The 2.5-A rating is peak-only and cannot be sustained continuously without thermal violation or OCP triggering.
Can DRV8881ERHRR drive a single brushed-DC motor?
Yes, DRV8881ERHRR can drive a single brushed-DC motor using one H-bridge (e.g., AOUT1/AOUT2), while the second bridge remains unused or drives an auxiliary load. Its PH/EN interface supports forward/reverse/brake (via coasting Hi-Z state) and enables precise speed control via external PWM applied to the enable signal. Full 2.5-A peak and 1.4-A RMS ratings apply per bridge, making it suitable for 24-V DC motors up to ~35 W mechanical output.
DRV8881ERHRR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-WFQFN Exposed Pad
- 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 (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)
DRV8881ERHRR FAQ
1.How can I place an order for DRV8881ERHRR through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8881ERHRR 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 DRV8881ERHRR reliable?
The price and inventory of DRV8881ERHRR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8881ERHRR is usually 5 days.
3.What payment methods are accepted for DRV8881ERHRR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8881ERHRR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8881ERHRR?
DRV8881ERHRR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8881ERHRR 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 DRV8881ERHRR?
For technical support, including DRV8881ERHRR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8881ERHRR requirements.
6.How does Aetrix verify that DRV8881ERHRR is sourced from the original manufacturer or authorized distributors?
All DRV8881ERHRR 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 DRV8881ERHRR meets industry standards.
7.What is the process for return or replacement of DRV8881ERHRR?
All DRV8881ERHRR units undergo pre-shipment inspection (PSI). If there is an issue with DRV8881ERHRR, 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 DRV8881ERHRR part is unused and in its original packaging.
Return procedure for DRV8881ERHRR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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