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Texas Instruments DRV8825PWP
- Part No.:
- DRV8825PWP
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DRV8825PWP.pdf
- Description:
- IC MTR DRVR BIPLR 8.2-45V 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:9,113
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Product details
Overview
DRV8825PWP from Texas Instruments is a PWM microstepping bipolar stepper motor driver IC with integrated H-bridge power stages, current regulation, and 1/32-step indexer logic. It delivers up to 2.5 A per phase at 24 V and 25°C, operates from 8.2 V to 45 V, supports mixed/slow/fast decay modes, and interfaces via STEP/DIR signals. It is used in precision motion control for printers, security cameras, and factory automation equipment.
For engineers reviewing the DRV8825PWP datasheet, DRV8825PWP pinout, DRV8825PWP application, or DRV8825PWP equivalent, key selection considerations include its 28-pin HTSSOP package, 1/32 microstepping capability, built-in 3.3-V reference output, overcurrent/thermal/UVLO protection, and compatibility with bipolar stepper motors requiring precise current-controlled winding excitation.
Technical Context
The DRV8825PWP integrates two N-channel H-bridge drivers with internal gate drive, charge pump (CP1/CP2), and current-sense amplifiers (ISENA/ISENB) referenced to adjustable xVREF inputs. Its microstepping indexer executes fixed-pattern 1/32-step sequences based on MODE0–MODE2 configuration without host processor intervention.
Current regulation uses fixed-frequency (30 kHz) PWM with 3.75-μs blanking time and programmable trip voltage (635–685 mV at full scale). Decay mode-selected by DECAY pin state-controls recirculation path: slow (both LS FETs), fast (H-bridge reversal), or mixed (75% fast + 25% slow within PWM cycle).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 8.2 V to 45 V - supports wide-range DC motor supplies including 12 V, 24 V, and 36 V industrial rails. |
| Max Output Current | 2.5 A per phase - continuous drive capability with adequate heatsinking at 24 V and 25°C ambient. |
| Microstep Resolution | 1/32 step - enables high positional resolution (e.g., 6400 steps/rev for 200-PP motor) without external controller interpolation. |
| PWM Frequency | 30 kHz - minimizes audible noise while maintaining stable current regulation and thermal efficiency. |
| Decay Modes | Slow, fast, mixed - selectable via DECAY pin to optimize torque ripple, power dissipation, and motor response in varying load conditions. |
| V3P3OUT Regulator | 3.3 V ±0.1 V @ 1 mA - provides stable reference for external current sense resistors or logic-level biasing. |
| Fault Indication | Active-low nFAULT open-drain output - asserts low on overtemperature, overcurrent, or UVLO for system-level error handling. |
Pinout & Package
DRV8825PWP is housed in a thermally enhanced 28-pin HTSSOP package (9.70 mm × 6.40 mm) with exposed power pad (PPAD) for PCB heat sinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| STEP | Step clock input | Rising edge advances indexer to next microstep position; requires ≥1.9 μs pulse width and ≤250 kHz max frequency. |
| DIR | Direction control input | High = forward sequence, low = reverse; internal 100-kΩ pulldown ensures default direction on power-up. |
| nSLEEP | Sleep mode enable | Low = ultra-low-quiescent-current state (≤20 μA); wake-up delay ~1.7 ms before accepting STEP commands. |
| nFAULT | Open-drain fault indicator | Drives low during OCP, TSD, or UVLO; requires external pullup to logic rail for system monitoring. |
| AOUT1/AOUT2 BOUT1/BOUT2 | H-bridge outputs | Drive bipolar stepper motor windings A and B; support bidirectional current flow with NMOS full-bridge topology. |
| ISENA/ISENB | Current sense return | Connect to low-side current sense resistors; internal 5× gain amplifier compares voltage to xVREF for PWM regulation. |
| AVREF/BVREF | Reference voltage input | Set full-scale current via external voltage (1–3.5 V); determines ITRIP = VREF/(5 × RSENSE). |
| DECAY | Decay mode select | Low = slow decay, open = mixed decay, high = fast decay; internal 130-kΩ pullup and 80-kΩ pulldown enable default mixed mode. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in 1/32 microstepping indexer | Eliminates need for external step interpolation logic; reduces host MCU computational load and firmware complexity. |
| Configurable decay modes | Enables optimization of motor torque smoothness, back-EMF handling, and power loss across speed/load profiles. |
| Integrated 3.3-V reference regulator | Provides accurate, low-noise bias for current sense circuitry without requiring external LDO or resistor divider. |
| Comprehensive protection suite | Includes overcurrent (independent of sense resistor), thermal shutdown, and VM undervoltage lockout with fault reporting. |
| Low-power sleep mode | Reduces total supply current to ≤20 μA, enabling energy-efficient operation in battery-powered or standby-motion systems. |
Applications
| Printers & Scanners | Video Security Cameras |
|---|---|
Use Scenario: Precision paper feed and carriage positioning in inkjet/laser printers and flatbed scanners. IC Role / Device Role / Timing Role: Bipolar stepper motor driver executing 1/32-step microstepping with current-regulated winding excitation. Use Value: Enables sub-millimeter positioning accuracy and silent operation at low speeds using mixed decay mode. | Use Scenario: Pan-tilt-zoom (PTZ) actuation in IP-based surveillance cameras requiring smooth, jitter-free motion. IC Role / Device Role / Timing Role: Motor driver controlling dual-axis stepper motors with synchronized STEP/DIR timing and thermal fault monitoring. Use Value: Delivers consistent torque across temperature range and suppresses mechanical resonance via adjustable decay control. |
| Factory Automation | Robotics Platforms |
Use Scenario: Indexing conveyors, pick-and-place actuators, and CNC tool changers in industrial control systems. IC Role / Device Role / Timing Role: High-voltage (up to 45 V) stepper driver interfacing with PLC or motion controller via STEP/DIR protocol. Use Value: Supports robust operation under variable line voltage and load transients with integrated UVLO and OCP protection. | Use Scenario: Joint actuation in educational and prototyping robotic arms requiring compact, integrated motor control. IC Role / Device Role / Timing Role: Dual-H-bridge driver managing two independent stepper motors with shared V3P3OUT reference and fault signaling. Use Value: Reduces BOM count by integrating indexer, current regulation, and protection-no external DAC or sense amp needed. |
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 4.5-A peak current, external indexer required, no integrated V3P3OUT, larger HTQFP-48 package. | Preferred for high-torque industrial motors where board space allows and external step generation is acceptable. | Select TB6600HG when >2.5-A phase current or higher thermal margin is required; DRV8825PWP offers tighter integration and smaller footprint. |
| LV8729V | Lower 1.5-A max current, 1/32 microstepping, integrated VREG, but lacks mixed decay mode and has narrower 7–32-V supply range. | Suitable for low-power portable devices where supply voltage is constrained and decay flexibility is secondary. | Choose LV8729V for battery-powered applications below 32 V; DRV8825PWP provides broader voltage range and superior decay control for demanding motion profiles. |
Compared with TB6600HG and LV8729V, the DRV8825PWP uniquely balances integration (on-chip indexer, 3.3-V reference, three decay modes), wide 8.2–45-V operation, and 2.5-A capability in a compact HTSSOP package-making it optimal for space-constrained, mid-power motion systems requiring minimal external components.
Availability
DRV8825PWP is available at Aetrix Electronics and suitable for printers, video security cameras, and factory automation systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DRV8825PWP 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 DRV8825PWP belongs to TI's high-performance stepper driver product line, designed specifically for cost-sensitive, space-constrained motion control applications needing integrated microstepping, robust protection, and flexible decay tuning.
FAQ
What is the maximum continuous output current rating for the DRV8825PWP?
The DRV8825PWP is rated for 2.5 A of continuous output current per phase when operated at 24 V and 25°C ambient temperature with proper PCB thermal design-including use of the exposed power pad and sufficient copper area. Derating is required at higher temperatures or voltages per the thermal data in section 7.4 of the datasheet.
How does the DRV8825PWP achieve 1/32 microstepping without external controller intervention?
DRV8825PWP achieves 1/32 microstepping using an on-chip indexer that reads MODE0–MODE2 pin states to configure the step table, then automatically sequences winding currents in a pre-programmed semi-sinusoidal pattern. Each rising edge on the STEP pin advances the indexer to the next state-no host CPU current calculation or PWM timing is required.
What protection features are integrated into the DRV8825PWP?
The DRV8825PWP integrates overcurrent protection (OCP) independent of the current sense resistor, thermal shutdown (TSD) triggered at 150–180°C die temperature, and VM undervoltage lockout (UVLO) activating below 7.8–8.2 V. All faults assert the open-drain nFAULT pin low, enabling system-level diagnostics and safe shutdown.
Can the DRV8825PWP operate with a 12-V supply, and what is its minimum operating voltage?
Yes, the DRV8825PWP operates reliably with a 12-V supply. Its specified minimum operating voltage is 8.2 V per the recommended operating conditions (section 7.3), making it compatible with standard 9-V to 12-V industrial and consumer power rails. Operation below 8.2 V triggers UVLO and disables all outputs.
What is the function of the V3P3OUT pin on the DRV8825PWP, and how should it be used?
The V3P3OUT pin delivers a regulated 3.3-V output (3.2–3.4 V at 1 mA load) used to bias the AVREF and BVREF pins or power external logic. It eliminates the need for an external reference voltage source. When used for current setting, connect AVREF and BVREF directly to V3P3OUT to achieve full-scale 2.5-A operation with a 0.25-Ω sense resistor.
DRV8825PWP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- 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 ~ 1/32
- Applications:
- General Purpose
- Current - Output:
- 2.5A
- Voltage - Supply:
- 8.2V ~ 45V
- Voltage - Load:
- 8.2V ~ 45V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-HTSSOP
DRV8825PWP FAQ
1.How can I place an order for DRV8825PWP through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8825PWP 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 DRV8825PWP reliable?
The price and inventory of DRV8825PWP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8825PWP is usually 5 days.
3.What payment methods are accepted for DRV8825PWP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8825PWP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8825PWP?
DRV8825PWP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8825PWP 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 DRV8825PWP?
For technical support, including DRV8825PWP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8825PWP requirements.
6.How does Aetrix verify that DRV8825PWP is sourced from the original manufacturer or authorized distributors?
All DRV8825PWP 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 DRV8825PWP meets industry standards.
7.What is the process for return or replacement of DRV8825PWP?
All DRV8825PWP units undergo pre-shipment inspection (PSI). If there is an issue with DRV8825PWP, 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 DRV8825PWP part is unused and in its original packaging.
Return procedure for DRV8825PWP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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