My Inquiry
My Account
Texas Instruments DRV8256EPWPR
- Part No.:
- DRV8256EPWPR
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DRV8256EPWPR.pdf
- Description:
- IC MOTOR DRIVER
- Quantity:
- Payment:
- Shipping:
Inventory:1,389
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DRV8256EPWPR from Texas Instruments is an N-channel H-bridge motor driver IC for brushed-DC motors, featuring integrated current sensing, Smart Tune dynamic decay control, 4.5 V to 48 V operating supply range, 6.4-A peak output current, and HTSSOP-28 package with PowerPAD™ thermal enhancement. It enables bidirectional motor control in compact industrial motion systems.
For engineers reviewing the DRV8256EPWPR datasheet, DRV8256EPWPR pinout, DRV8256EPWPR application, or DRV8256EPWPR equivalent, key selection considerations include its PH/EN control interface, quad-level TOFF/DECAY configuration, integrated current mirror (no external shunt), ultra-low 2 µA sleep current, and thermal protection with nFAULT reporting.
Technical Context
The DRV8256EPWPR implements a single N-channel H-bridge with charge pump gate drive for high-side MOSFETs, supporting both forward/reverse motor operation and brake states via PH/EN logic. Its current regulation uses internal current mirrors referenced to VREF, enabling adjustable ITRIP from 0.076 A to 6.4 A without external sense resistors.
Smart Tune technology dynamically selects decay mode (fast/mixed/slow) per PWM cycle based on real-time current ripple and dI/dt behavior, while configurable off-times (7/16/24/32 µs) and quad-level DECAY pin settings allow precise tuning of torque smoothness and efficiency across varying motor inductance and load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 48 V - supports direct battery or wide-input DC bus operation without external regulators |
| Peak Output Current | 6.4 A - enables driving medium-power brushed-DC motors up to ~150 W at 24 V with appropriate heatsinking |
| RDS(ON) (HS + LS) | 165 mΩ at 24 V, 25°C - minimizes conduction loss and thermal rise during continuous operation |
| Sleep Current | 2 µA - extends battery life in portable or standby-mode motor systems |
| Current Sensing | Integrated current mirror - eliminates need for power shunt resistor, saving PCB area and BOM cost |
| Control Interface | PH/ENABLE (PH/EN) - simplifies microcontroller GPIO usage with two-pin directional control |
| Decay Modes | Smart Tune Dynamic Decay, Smart Tune Ripple Control, Mixed, Fast - adaptive or fixed decay for optimal torque ripple vs. efficiency trade-off |
Pinout & Package
DRV8256EPWPR is housed in a thermally enhanced HTSSOP-28 (PWP) package measuring 9.7 mm × 4.4 mm with exposed PowerPAD™ for improved heat dissipation. The package supports surface-mount assembly and requires soldering the thermal pad to a dedicated GND copper pour.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 / OUT2 | H-bridge winding outputs | Connect directly to motor terminals; support bidirectional current flow and braking via internal FET control |
| PH, EN | Phase/Enable logic inputs | PH sets direction (forward/reverse); EN enables/disables bridge - compatible with 1.8 V/3.3 V/5 V logic |
| VREF | Current regulation reference input | Adjusts ITRIP threshold (ITRIP = VREF / 0.66 A/V below 3.3 V); tied externally to set full-scale chopping current |
| TOFF, DECAY | Quad-level configuration pins | TOFF selects PWM off-time (7/16/24/32 µs); DECAY selects decay mode (Smart Tune, mixed, fast) |
| nFAULT | Open-drain fault indicator | Pulled low on UVLO, OCP, CPUV, or OTSD; requires external pullup for system-level fault monitoring |
| nSLEEP | Ultra-low-power mode control | Logic low disables all circuitry except bias generators, reducing supply current to 2 µA |
| VM, PGND, GND | Power supply and ground terminals | VM accepts 4.5–48 V motor supply; separate PGND (power ground) and GND (logic ground) minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Smart Tune Dynamic Decay | Automatically optimizes decay mode per PWM cycle to minimize current ripple without manual tuning |
| Integrated current mirror sensing | Replaces 5–10 W external shunt resistor, reducing board area, thermal stress, and system cost |
| Configurable off-time PWM chopping | Four discrete tOFF options (7/16/24/32 µs) enable precise trade-off between regulation accuracy and switching loss |
| Spread spectrum clocking | Reduces EMI peak emissions by >10 dB, easing compliance with CISPR-22/EN55032 Class B limits |
| Comprehensive protection suite | UVLO, CPUV, OCP (8-A trip), OTSD (150°C), and fault reporting via nFAULT simplify system safety design |
Applications
| Printers & Scanners | Home Appliances |
|---|---|
Use Scenario: Bidirectional paper feed and scan head positioning in multifunction printers. IC Role / Device Role / Timing Role: H-bridge driver controlling 24 V brushed-DC carriage motors with precise start/stop and current-limited acceleration. Use Value: Integrated current sensing prevents paper jam-induced stall currents; Smart Tune adapts decay to varying mechanical load inertia. |
Use Scenario: Drum rotation and water valve actuation in smart washing machines. IC Role / Device Role / Timing Role: Motor driver for 36 V BLDC-assisted drum motors and 12–24 V solenoid valves requiring controlled inrush limiting. Use Value: 6.4-A peak rating handles high-torque spin cycles; low 2 µA sleep current meets Energy Star standby requirements. |
| Vacuum & Robotics | ATMs & Textile Machines |
Use Scenario: Brushed-DC drive for main brush and suction fan in cordless robotic vacuum cleaners. IC Role / Device Role / Timing Role: Dual-motor controller managing independent 18–36 V motors with coordinated current regulation and thermal management. Use Value: HTSSOP-28 PowerPAD™ enables compact layout with minimal heatsink; spread spectrum reduces RF interference with onboard Wi-Fi/BLE. |
Use Scenario: Precision paper transport and cash dispensing mechanisms in bank ATMs and industrial looms. IC Role / Device Role / Timing Role: Position-controlled motor driver for stepper-like microstepping via PWM current regulation and decay tuning. Use Value: Quad-level DECAY pin allows factory calibration of decay mode per machine model; nFAULT enables predictive maintenance alerts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar H-bridge motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV8256PPWPR | PWM (IN1/IN2) control interface instead of PH/EN; identical electrical specs, package, and Smart Tune features | Better suited for systems using dual-PWM microcontroller outputs rather than phase-enable logic | Select DRV8256PPWPR when existing firmware uses IN1/IN2 timing control; no change to motor current or thermal performance |
| DRV8245PWP | Lower 3.6-A peak current, no Smart Tune, fixed decay modes, 4.5–35 V supply range, same HTSSOP-28 package | Targeted at cost-sensitive, lower-power applications where adaptive decay is unnecessary | Choose DRV8245PWP only if peak current ≤3.6 A suffices and Smart Tune is not required for torque smoothness |
Compared with DRV8256PPWPR, the DRV8256EPWPR offers simpler two-pin control but lacks dual-PWM flexibility; versus DRV8245PWP, it delivers 78% higher peak current and adaptive current regulation-critical for high-inertia loads and variable-speed operation.
Availability
DRV8256EPWPR is available at Aetrix Electronics and suitable for printers and scanners, home appliances, vacuum and robotics, and ATM and textile machines requiring stable component supply, long-term production continuity, and automotive-grade reliability under industrial temperature ranges.
Supply support for DRV8256EPWPR 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 ICs and industrial-grade reliability.
The DRV8256E product line delivers highly integrated, thermally robust H-bridge drivers for compact, high-efficiency brushed-DC motor systems in space-constrained industrial and consumer applications.
FAQ
What control interface does the DRV8256EPWPR use?
The DRV8256EPWPR uses a PH/ENABLE (PH/EN) logic interface: PH determines motor direction (forward/reverse), and EN enables or disables the H-bridge. This two-signal scheme simplifies microcontroller GPIO usage and supports 1.8 V, 3.3 V, and 5.0 V logic levels. Unlike the DRV8256PPWPR variant, the DRV8256EPWPR does not accept dual-PWM (IN1/IN2) inputs.
How is current regulation configured on the DRV8256EPWPR?
Current regulation on the DRV8256EPWPR is set via the VREF pin: ITRIP (A) = VREF (V) / 0.66 for VREF ≤ 3.3 V. An external voltage source or resistor divider applied to VREF defines the full-scale chopping current. The device uses an internal current mirror architecture-no external shunt resistor is needed-reducing board area and power loss.
What decay modes does the DRV8256EPWPR support, and how are they selected?
The DRV8256EPWPR supports Smart Tune Dynamic Decay, Smart Tune Ripple Control, Mixed decay (30% fast), and Fast decay, selected via the quad-level DECAY pin. Tying DECAY to GND, DVDD, Hi-Z, or 330 kΩ to GND configures each mode. Smart Tune automatically adjusts decay per PWM cycle to minimize current ripple, eliminating manual tuning across motor variants.
Does the DRV8256EPWPR require external capacitors, and which ones?
Yes, the DRV8256EPWPR requires five key external capacitors: two 0.01-µF X7R ceramics from VM to PGND (one per VM pin), one 0.22-µF X7R from VCP to VM, one 0.022-µF X7R from CPH to CPL, and one 0.47–1-µF X7R from DVDD to GND. These ensure stable charge pump operation, low-noise logic regulation, and robust motor supply decoupling.
What protection features are integrated into the DRV8256EPWPR?
The DRV8256EPWPR integrates VM undervoltage lockout (UVLO), charge pump undervoltage (CPUV), overcurrent protection (OCP at 8 A), thermal shutdown (OTSD at 150°C), and fault reporting via open-drain nFAULT. All protections are active during normal and sleep modes, and nFAULT pulls low during any fault condition-requiring only an external pullup resistor for system-level monitoring.
DRV8256EPWPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- Bipolar, Unipolar
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (2)
- Interface:
- On/Off, PWM
- Technology:
- NMOS
- Step Resolution:
- -
- Applications:
- Printer
- Current - Output:
- 5A
- Voltage - Supply:
- 4.5V ~ 48V
- Voltage - Load:
- 4.5V ~ 48V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-HTSSOP
DRV8256EPWPR FAQ
1.How can I place an order for DRV8256EPWPR through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8256EPWPR 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 DRV8256EPWPR reliable?
The price and inventory of DRV8256EPWPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8256EPWPR is usually 5 days.
3.What payment methods are accepted for DRV8256EPWPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8256EPWPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8256EPWPR?
DRV8256EPWPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8256EPWPR 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 DRV8256EPWPR?
For technical support, including DRV8256EPWPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8256EPWPR requirements.
6.How does Aetrix verify that DRV8256EPWPR is sourced from the original manufacturer or authorized distributors?
All DRV8256EPWPR 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 DRV8256EPWPR meets industry standards.
7.What is the process for return or replacement of DRV8256EPWPR?
All DRV8256EPWPR units undergo pre-shipment inspection (PSI). If there is an issue with DRV8256EPWPR, 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 DRV8256EPWPR part is unused and in its original packaging.
Return procedure for DRV8256EPWPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DRV8256EPWPR Tags
-
DRV2603RUNR
Texas Instruments
-
DRV8837CDSGR
Texas Instruments
-
DRV8837DSGR
Texas Instruments
-
DRV8838DSGR
Texas Instruments
-
DRV8839DSSR
Texas Instruments
-
EMC2301-1-ACZL-TR
Microchip Technology
-
DRV8231ADSGR
Texas Instruments
-
EMC2302-2-AIZL-TR
Microchip Technology
-
DRV8800PWPR
Texas Instruments
-
DRV8835DSSR
Texas Instruments
-
EMC2303-1-KP-TR
Microchip Technology
-
DRV8876PWPR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
