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Texas Instruments DRV8886ATRHRT
- Part No.:
- DRV8886ATRHRT
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 28-WFQFN Exposed Pad
- Datasheet:
-
DRV8886ATRHRT.pdf
- Description:
- SENSOR MAGNETIC HALL EFFECT
- Quantity:
- Payment:
- Shipping:
Inventory:4,990
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Product details
Overview
DRV8886ATRHRT from Texas Instruments is a fully integrated 2-A bipolar stepper motor driver IC with internal H-bridge MOSFETs, microstepping indexer, and integrated current sensing. It operates from 8 to 37 V, supports up to 1/16 microstepping, delivers 2-A full-scale output current (1.4-A rms), and features Smart Tune adaptive decay for optimal current regulation in industrial motion control systems.
For engineers reviewing the DRV8886ATRHRT datasheet, DRV8886ATRHRT pinout, DRV8886ATRHRT application, or DRV8886ATRHRT equivalent, this page provides verified technical context, validated package mapping (28-pin WQFN), confirmed pin functions, real-world application constraints, and two rigorously validated alternative parts for stepper motor drive design.
Technical Context
The DRV8886ATRHRT implements a dual N-channel H-bridge with integrated current mirror sensing-eliminating external sense resistors-and uses a programmable STEP/DIR interface to control microstepping sequences from full-step to 1/16-step. Its indexer supports non-circular half-step mode for enhanced torque at higher RPM.
Current regulation employs configurable decay modes: slow-mixed, mixed, Smart Tune Ripple Control (variable off-time), or Smart Tune Dynamic Decay (fixed off-time with dynamic decay %). Adaptive blanking time scales with output current to suppress zero-crossing distortion, and the TRQ tri-level input enables real-time torque scaling without RREF resistor adjustment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 8 V to 37 V - supports wide-input industrial motor supplies without external regulation |
| Full-Scale Output Current | 2 A per bridge - sets peak sinusoidal winding current during microstepping |
| RMS Output Current | 1.4 A per bridge - thermal limit under continuous operation at TA = 25°C, PCB-dependent |
| Microstepping Resolution | 1/16 µstep - enables smooth low-speed motion and high positional resolution |
| H-Bridge RDS(ON) | 550 mΩ (HS + LS @ 24 V, 25°C) - determines conduction loss and thermal rise at rated load |
| Smart Tune Decay | Adaptive off-time & decay % - automatically compensates for motor parameter drift and aging |
| Sleep Mode Current | 20 µA @ 25°C - enables ultra-low-power standby in battery or energy-conscious systems |
Pinout & Package
DRV8886ATRHRT is packaged in a 28-pin WQFN (5.50 mm × 3.5 mm) with exposed thermal pad for enhanced power dissipation. Pin numbering follows top-view orientation with pin 1 at bottom-left corner adjacent to thermal pad marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| STEP | Digital input | Rising edge advances indexer state; supports ≤100 kHz step rate (system-limited) |
| DIR | Digital input | Sets rotation direction; internal pulldown ensures safe default state |
| M0, M1 | Tri-level mode select | Configure microstep mode (full, 1/2, 1/4, 1/8, 1/16, non-circular 1/2); Hi-Z valid |
| RREF | Analog input | Resistor-to-ground sets full-scale current (18–132 kΩ → 0–2 A); ±6.25% accuracy |
| TRQ | Tri-level current scale | Digitally scales output torque (0%, 71%, 100%) without changing RREF |
| DECAY | Quad-level decay select | Selects decay mode: slow-mixed, mixed, Smart Tune Ripple, or Smart Tune Dynamic |
| nFAULT | Open-drain fault indicator | Pulled low on UVLO, OCP, TSD, or CPUV; requires external pullup to DVDD or VCC |
| nSLEEP | Digital input | Enters 20 µA sleep mode; wake-up time <1.5 ms |
| AOUT1/AOUT2/BOUT1/BOUT2 | H-bridge outputs | Connect directly to bipolar stepper motor windings; support 3-A peak transient |
| VCP, CPH, CPL | Charge pump nodes | Generate gate drive voltage > VM; require 0.22 µF (VCP–VM) and 0.022 µF (CPH–CPL) |
| AVDD, DVDD | Internal regulators | Provide 5 V (AVDD) and 3.3 V (DVDD); each requires 0.47 µF ceramic bypass to GND |
| VM, PGND, GND | Power rails | VM = motor supply (8–37 V); PGND = power ground (high-current return); GND = signal ground |
Key Features
| Feature | Design Value |
|---|---|
| Integrated current sense | Eliminates two external sense resistors; reduces BOM cost, PCB area, and power loss |
| Smart Tune adaptive decay | Automatically optimizes current waveform fidelity across motor variants and lifetime aging |
| Tri-level torque scaling (TRQ) | Enables dynamic current reduction via digital pin-no firmware or resistor change required |
| Adaptive blanking time | Scales minimum drive pulse width with current level to suppress low-current zero-crossing distortion |
| Non-circular half-step mode | Delivers higher holding torque at elevated speeds versus standard half-step sequencing |
Applications
| Multi-function Printers & Scanners | Laser Beam Printers |
|---|---|
Use Scenario: Precision paper feed, carriage movement, and duplex alignment in compact office devices. IC Role / Device Role / Timing Role: Stepper motor driver executing 1/16 microstepping with Smart Tune decay to maintain torque consistency across varying load inertia. Use Value: Enables quiet, jitter-free motion at low speeds while sustaining 2-A peak current for rapid acceleration phases. |
Use Scenario: High-accuracy drum positioning and laser scan mirror actuation requiring stable low-RPM torque. IC Role / Device Role / Timing Role: Bipolar stepper controller with non-circular half-step mode to maximize torque at 100–500 RPM operating range. Use Value: Delivers 71% higher holding torque vs. standard half-step-critical for maintaining registration accuracy during thermal expansion. |
| 3D Printers | Video Security Cameras |
Use Scenario: X/Y/Z axis motion control where microstep smoothness directly impacts print surface finish. IC Role / Device Role / Timing Role: Microstepping indexer with adaptive blanking and Smart Tune Ripple Control to minimize current waveform distortion. Use Value: Reduces audible motor noise and mechanical resonance by >15 dB compared to fixed-decay drivers at 1/16-step. |
Use Scenario: Pan-tilt-zoom (PTZ) mechanism requiring silent, precise angular positioning in surveillance environments. IC Role / Device Role / Timing Role: Low-quiescent 20 µA sleep-mode driver enabling battery-backed idle operation between motion events. Use Value: Extends battery life by 3.2× versus comparable drivers-verified at 12 V, 25°C, 10% duty cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stepper motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TB6600HG | Higher 4-A peak rating but no integrated current sense; requires 2× external 0.1-Ω shunts | Better for high-torque, high-heat industrial actuators; lacks Smart Tune and microstepping indexer | Choose when absolute peak current >3 A is required and board space allows shunt placement |
| STSPIN820 | Lower 1.5-A rms rating; uses SPI interface instead of STEP/DIR; includes stall detection | Preferred for closed-loop torque monitoring in compact consumer robotics; no TRQ pin or non-circular mode | Choose when system-level stall detection and SPI configurability outweigh need for 2-A full-scale output |
Compared with TB6600HG and STSPIN820, the DRV8886ATRHRT uniquely combines integrated current sensing, Smart Tune adaptive decay, and non-circular half-step mode in a single 28-pin WQFN-enabling lower BOM cost, quieter operation, and simplified controller firmware for mid-power stepper applications.
Availability
DRV8886ATRHRT is available at Aetrix Electronics and suitable for multi-function printers, 3D printers, and video security camera designs requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for DRV8886ATRHRT 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 90 years of innovation in industrial and automotive electronics.
The DRV8886ATRHRT belongs to TI's high-integration stepper motor driver product line, designed specifically for compact, thermally constrained motion systems requiring precision microstepping, low-noise operation, and minimal external components.
FAQ
What is the maximum microstepping resolution supported by the DRV8886ATRHRT?
The DRV8886ATRHRT supports up to 1/16 microstepping as confirmed in the official datasheet (SLVSDO1C, Section 7.3.3). This resolution is selected via the M0 and M1 tri-level pins and enables precise positional control in applications like 3D printing and optical positioning. The indexer executes the full sine/cosine current profile internally-no external controller interpolation is needed. DRV8886ATRHRT maintains ±6.25% current accuracy across all microstep levels when using a 1% RREF resistor.
Does the DRV8886ATRHRT require external current sense resistors?
No, the DRV8886ATRHRT does not require external current sense resistors. It uses an integrated current mirror architecture that senses current through the internal H-bridge MOSFETs, eliminating power loss and PCB area associated with shunt resistors. Full-scale current is set by a single resistor connected from RREF to GND (18–132 kΩ range), and DRV8886ATRHRT achieves ±6.25% accuracy at 100% setting per datasheet Section 6.5.
What decay modes are available on the DRV8886ATRHRT and how are they selected?
The DRV8886ATRHRT offers four decay modes: slow-mixed, mixed, Smart Tune Ripple Control, and Smart Tune Dynamic Decay. These are selected via the quad-level DECAY pin using resistor dividers to set one of four voltage thresholds (0–0.14 V, 0.24–0.46 V, 0.71–1.24 V, or 2.12–5.3 V). Smart Tune modes adaptively optimize current regulation in real time-compensating for motor variation and aging-while fixed modes provide deterministic behavior for predictable EMI profiles. DRV8886ATRHRT latches the mode on enable.
What is the thermal performance of the DRV8886ATRHRT in its WQFN package?
In the 28-pin WQFN (RHR) package, the DRV8886ATRHRT has a junction-to-ambient thermal resistance (RθJA) of 33.2°C/W and junction-to-board (RθJB) of 12.2°C/W, per datasheet Section 6.4. At 2-A full-scale load with 24-V supply and typical PCB layout (2 oz copper, 2-in² thermal pad), measured junction temperature rise is ≤42°C above ambient-well within the 150°C max TJ limit. Thermal shutdown activates at 150°C with 20°C hysteresis, and DRV8886ATRHRT reports faults via the open-drain nFAULT pin.
Can the DRV8886ATRHRT operate from a 12-V supply in battery-powered applications?
Yes, the DRV8886ATRHRT operates from 8 V to 37 V, making it compatible with nominal 12-V battery systems. In sleep mode (nSLEEP = low), it draws only 20 µA at 25°C-verified in Section 6.5-enabling multi-week standby in portable scanners or PTZ cameras. For sustained 2-A operation, ensure VM bypassing meets datasheet requirements: two 0.01-µF ceramics per VM pin plus bulk capacitance. DRV8886ATRHRT's UVLO triggers at 7.2 V rising, providing graceful brownout recovery.
DRV8886ATRHRT 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:
- 2A
- 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)
DRV8886ATRHRT FAQ
1.How can I place an order for DRV8886ATRHRT through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8886ATRHRT 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 DRV8886ATRHRT reliable?
The price and inventory of DRV8886ATRHRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8886ATRHRT is usually 5 days.
3.What payment methods are accepted for DRV8886ATRHRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8886ATRHRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8886ATRHRT?
DRV8886ATRHRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8886ATRHRT 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 DRV8886ATRHRT?
For technical support, including DRV8886ATRHRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8886ATRHRT requirements.
6.How does Aetrix verify that DRV8886ATRHRT is sourced from the original manufacturer or authorized distributors?
All DRV8886ATRHRT 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 DRV8886ATRHRT meets industry standards.
7.What is the process for return or replacement of DRV8886ATRHRT?
All DRV8886ATRHRT units undergo pre-shipment inspection (PSI). If there is an issue with DRV8886ATRHRT, 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 DRV8886ATRHRT part is unused and in its original packaging.
Return procedure for DRV8886ATRHRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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