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Texas Instruments DRV8436EPWPR
- Part No.:
- DRV8436EPWPR
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DRV8436EPWPR.pdf
- Description:
- 48-V, 1.5-A BIPOLAR STEPPER OR D
- Quantity:
- Payment:
- Shipping:
Inventory:2,484
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Product details
Overview
DRV8436EPWPR from Texas Instruments is a dual H-bridge motor driver IC designed for bipolar stepper or dual brushed-DC motor control in industrial motion systems. It delivers 1.5-A full-scale and 1.1-A rms output per bridge, operates from 4.5 V to 48 V, integrates current sensing with ±7.5% accuracy, and supports PHASE/ENABLE control-enabling compact printer carriage, ATM paper feed, and robotic joint actuation.
For engineers reviewing the DRV8436EPWPR datasheet, DRV8436EPWPR pinout, DRV8436EPWPR application, or DRV8436EPWPR equivalent, this page provides verified electrical parameters, HTSSOP-28 pin mapping, Smart Tune decay behavior, thermal derating guidance, and real-world substitution options for motor control BOM optimization.
Technical Context
The DRV8436EPWPR implements two independent N-channel H-bridges with integrated charge pump, current mirror–based sensing, and configurable off-time PWM chopping (7/16/24/32 μs). Its PHASE/ENABLE interface directly accepts logic-level signals (1.8 V–5.0 V), eliminating external level shifters.
Smart Tune Dynamic Decay automatically adjusts fast/slow decay ratio per PWM cycle based on winding dI/dt and step transitions, while protection includes VM UVLO (4.25 V), charge pump undervoltage detection, overcurrent trip (2.4 A peak), and thermal shutdown (150 °C junction).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 48 V - Supports wide-input industrial power rails without external DC-DC pre-regulation. |
| Output Current Capability | 1.5-A full-scale, 1.1-A rms per bridge - Sustains continuous torque in stepper microstepping or DC motor bidirectional drive under PCB thermal limits. |
| RDS(ON) (HS + LS) | 900 mΩ at 24 V, 25 °C - Minimizes conduction loss and self-heating during high-duty-cycle operation. |
| Current Sense Accuracy | ±7.5% full-scale - Enables precise closed-loop current regulation without external shunt resistors, reducing board area and BOM cost. |
| Control Interface | PHASE/ENABLE - Simplifies MCU GPIO usage with single-direction phase control and enable gating; no PWM timing coordination required. |
| Decay Modes | Smart Tune Dynamic, slow, mixed (30% fast), fast - Dynamically optimizes current ripple vs. step response trade-off per motor load condition. |
| Sleep Current | 2 µA - Enables ultra-low-power standby in battery-backed or energy-conscious applications like IP cameras and portable robotics. |
Pinout & Package
DRV8436EPWPR uses the HTSSOP-28 (PWP) package: 9.7 mm × 4.4 mm body, PowerPAD™ exposed thermal pad, 0.65 mm pitch, RoHS-compliant lead finish.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| AOUT1 / AOUT2 | H-bridge A motor winding terminals | Direct connection points to one bipolar stepper coil or brushed-DC motor; support bidirectional current flow up to 1.5-A full-scale. |
| BOUT1 / BOUT2 | H-bridge B motor winding terminals | Independent second winding interface; enables dual-motor or 4-wire stepper operation with separate current regulation. |
| APH / AEN | Bridge A phase and enable inputs | Logic-controlled direction (APH) and activation (AEN); internal pulldown ensures Hi-Z default on power-up or MCU reset. |
| VREFA / VREFB | Full-scale current reference inputs | Analog voltage (0.05–3.3 V) sets chopping threshold via IFS = VREFx/2.2 V/A; enables precision current scaling without DAC. |
| ADECAY / BDECAY | Quad-level decay mode selection | Resistor-tied or direct logic inputs selecting Smart Tune, slow, mixed, or fast decay per bridge-no configuration register needed. |
| TOFF | Off-time duration selector | Quad-level input setting PWM chopping period to 7/16/24/32 μs-directly tunes regulation frequency and ripple magnitude. |
| nFAULT | Open-drain fault indicator | Asserts low on UVLO, OCP, OTSD, or CPUV; requires external pullup; enables system-level fault logging and safe shutdown. |
| nSLEEP | Ultra-low-power mode control | Active-low input enabling 2-µA quiescent state; wake-up time < 0.9 ms ensures responsive reactivation for intermittent motion tasks. |
| VM / PGND / GND | Power supply and ground connections | Dual VM pins and dual PGND pins reduce IR drop and improve thermal spreading; separate DVDD/GND isolates logic noise from power switching. |
| VCP / CPH / CPL | Charge pump generation nodes | Internal high-side gate drive booster; requires 0.22-μF ceramic cap (VCP–VM) and 0.022-μF cap (CPH–CPL) for stable operation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated current sense architecture | Eliminates external shunt resistors and associated power loss; achieves ±7.5% full-scale accuracy using internal MOSFET current mirroring. |
| Smart Tune Dynamic Decay | Automatically adapts decay profile per PWM cycle to minimize current ripple while preserving step response-no manual tuning required. |
| Configurable off-time PWM chopping | Four discrete tOFF values (7/16/24/32 μs) set via single quad-level pin, enabling optimization of regulation frequency vs. thermal performance. |
| Wide logic supply compatibility | Accepts 1.8-V, 3.3-V, and 5.0-V control signals directly-removes need for level translators in mixed-voltage MCU environments. |
| Comprehensive protection suite | Includes VM UVLO (4.25 V), charge pump undervoltage lockout, cycle-by-cycle overcurrent detection (2.4-A peak), and thermal shutdown (150 °C). |
Applications
| Printer Carriage Control | ATM Paper Feed Mechanism |
|---|---|
|
Use Scenario: Precise bidirectional movement of print head across rail with microstepping resolution. IC Role / Device Role / Timing Role: Dual H-bridge driver delivering synchronized current to stepper windings; PHASE/ENABLE interface simplifies MCU timing. Use Value: Integrated current sense eliminates shunts, saving PCB space; Smart Tune reduces audible vibration and positional error during acceleration/deceleration. |
Use Scenario: Reliable forward/reverse transport of banknotes through multi-roller path with jam detection. IC Role / Device Role / Timing Role: Independent brushed-DC motor control per roller pair; nFAULT pin reports overcurrent events for real-time stall detection. Use Value: 48-V capability supports high-torque rollers; 2-µA sleep mode extends uptime in low-activity standby states. |
| IP Network Camera Pan/Tilt Actuator | Vacuum Robot Wheel Drive |
|
Use Scenario: Smooth, quiet angular positioning of camera module using 2-phase stepper motor. IC Role / Device Role / Timing Role: Bipolar stepper driver with per-winding current regulation; VREFA/VREFB enable fine-grained torque adjustment. Use Value: Spread spectrum clocking lowers EMI emissions to meet FCC Class B radiated limits; HTSSOP package fits tight optical module envelopes. |
Use Scenario: Dual-wheel differential drive in consumer vacuum robot requiring responsive direction reversal and obstacle recovery. IC Role / Device Role / Timing Role: Two independent brushed-DC bridges driving left/right wheels; TOFF and DECAY pins allow dynamic adaptation to surface friction changes. Use Value: 1.5-A full-scale current sustains torque on carpet; thermal shutdown (150 °C) prevents damage during prolonged stall conditions. |
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 |
|---|---|---|---|
| DRV8436PPWPR | Same HTSSOP-28 package and specs, but uses PWM (not PHASE/ENABLE) interface; requires two logic lines per bridge. | Better suited for systems with dedicated PWM timers and need for brake functionality (IN1=IN2=1). | Select DRV8436PPWPR only if existing firmware already implements dual-PWM motor control; DRV8436EPWPR avoids GPIO overhead and simplifies timing. |
| TB67H420FTG | 48-V, 2.5-A peak dual H-bridge with built-in current DAC and SPI interface; larger QFN-48 package; no Smart Tune. | Preferred where digital configurability (SPI register access), higher peak current, or integrated DAC-based current setting is required. | Choose TB67H420FTG when design demands programmable decay modes, diagnostics, or tighter current tolerance (<±5%); DRV8436EPWPR offers lower cost and simpler layout. |
Compared with DRV8436PPWPR, the DRV8436EPWPR reduces MCU GPIO count and eliminates PWM synchronization complexity; versus TB67H420FTG, it trades digital configurability for smaller footprint, lower component count, and analog simplicity-ideal for cost-sensitive, space-constrained motion modules.
Availability
DRV8436EPWPR is available at Aetrix Electronics and suitable for printer carriage control, ATM paper feed mechanisms, and IP network camera pan/tilt actuators requiring stable component supply, long-term industrial lifecycle support, and consistent parametric performance across production batches.
Supply support for DRV8436EPWPR 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.
The DRV8436E/P product line targets cost-sensitive, thermally constrained motion systems-including office automation, point-of-sale equipment, and consumer robotics-by integrating current sensing, smart decay, and robust protection into a single compact package.
FAQ
What control interface does the DRV8436EPWPR use?
The DRV8436EPWPR uses a PHASE/ENABLE interface: APH (or BPH) determines motor direction (forward/reverse), and AEN (or BEN) enables or disables the bridge. This two-pin-per-bridge scheme simplifies MCU GPIO usage and avoids PWM timing constraints. Unlike the PWM-interface DRV8436PPWPR, the DRV8436EPWPR does not support brake mode. The interface accepts 1.8-V to 5.0-V logic levels directly.
How does the integrated current sense work in the DRV8436EPWPR?
The DRV8436EPWPR uses an internal current mirror architecture that leverages the power MOSFETs themselves for sensing-eliminating external shunt resistors. The VREFA and VREFB pins set the full-scale current via IFS = VREFx/2.2 V/A. This achieves ±7.5% accuracy across temperature and supply voltage, reduces board area, and removes shunt power dissipation. No calibration or external amplifiers are required for basic current regulation.
What decay modes are supported by the DRV8436EPWPR, and how are they selected?
The DRV8436EPWPR supports four decay modes per bridge: Smart Tune Dynamic, slow, mixed (30% fast), and fast. Selection is made via quad-level ADECAY and BDECAY pins-tied to GND, DVDD, Hi-Z, or 330-kΩ to GND. Smart Tune automatically adjusts decay aggressiveness each PWM cycle to minimize ripple while maintaining step response. Fixed modes provide deterministic behavior for applications requiring predictable current waveform shape.
What thermal considerations apply to the DRV8436EPWPR in continuous operation?
The DRV8436EPWPR has a junction-to-board thermal resistance (RθJB) of 11.5 °C/W in HTSSOP-28. At 1.5-A full-scale per bridge and 24-V supply, typical power dissipation is ~2.0 W. To maintain TJ ≤ 125 °C in 85 °C ambient, ≥250 mm² of 2-oz copper connected to the PowerPAD™ is recommended. Thermal shutdown triggers at 150 °C with 20 °C hysteresis. Derating curves in the datasheet must be applied for >1.1-A rms operation.
Does the DRV8436EPWPR require external capacitors, and which ones are mandatory?
Yes, the DRV8436EPWPR requires five mandatory external capacitors: two 0.01-μF X7R ceramics from each VM pin to PGND; one 0.22-μF X7R from VCP to VM; one 0.022-μF X7R from CPH to CPL; and one 0.47-μF X7R from DVDD to GND. These ensure stable charge pump operation, low-noise logic supply, and robust motor supply decoupling. Bulk capacitance on VM (e.g., 100-μF electrolytic) is also strongly recommended for high-current transients.
DRV8436EPWPR 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
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (4)
- Interface:
- On/Off
- Technology:
- NMOS
- Step Resolution:
- -
- Applications:
- Camera, Printer
- Current - Output:
- 1.5A
- Voltage - Supply:
- 0V ~ 5.3V
- Voltage - Load:
- 4.5V ~ 48V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-HTSSOP
DRV8436EPWPR FAQ
1.How can I place an order for DRV8436EPWPR through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8436EPWPR 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 DRV8436EPWPR reliable?
The price and inventory of DRV8436EPWPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8436EPWPR is usually 5 days.
3.What payment methods are accepted for DRV8436EPWPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8436EPWPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8436EPWPR?
DRV8436EPWPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8436EPWPR 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 DRV8436EPWPR?
For technical support, including DRV8436EPWPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8436EPWPR requirements.
6.How does Aetrix verify that DRV8436EPWPR is sourced from the original manufacturer or authorized distributors?
All DRV8436EPWPR 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 DRV8436EPWPR meets industry standards.
7.What is the process for return or replacement of DRV8436EPWPR?
All DRV8436EPWPR units undergo pre-shipment inspection (PSI). If there is an issue with DRV8436EPWPR, 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 DRV8436EPWPR part is unused and in its original packaging.
Return procedure for DRV8436EPWPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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