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Texas Instruments DRV8840PWP
- Part No.:
- DRV8840PWP
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DRV8840PWP.pdf
- Description:
- IC MOTOR DRVR 8.2V-45V 28HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,064
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Product details
Overview
DRV8840PWP from Texas Instruments is a single H-bridge DC motor driver IC designed for precise current-controlled brushed motor operation in automated equipment. It operates from 8.2 V to 45 V, delivers up to 5-A peak output current at 24 V/25°C, features five-bit digital current control (32 levels), and integrates overcurrent, thermal, and undervoltage protection with fault reporting via open-drain nFAULT. It drives printers, scanners, and factory automation motors.
For engineers reviewing the DRV8840PWP datasheet, DRV8840PWP pinout, DRV8840PWP application, or DRV8840PWP equivalent, key selection criteria include its 28-pin HTSSOP PowerPAD™ package, parallel PHASE/ENBL interface, programmable decay mode (brake/coast), 0.4 Ω typical total RDS(on), and built-in 3.3-V reference regulator - all critical for motor control stability and layout efficiency.
Technical Context
The DRV8840PWP implements an NMOS H-bridge with integrated charge pump (CP1/CP2/VCP), current-sense amplifier (5× gain), and fixed-frequency PWM current regulation. Its five-bit I[4:0] inputs scale the chopping threshold relative to VREF (1–3.5 V), enabling precise winding current control from 0% to 100% in non-linear steps defined by TI's internal DAC mapping.
Decay mode is selected via the DECAY pin (low = slow decay/brake, high = fast decay/coast), directly affecting motor stop behavior and recirculation path during ENBL deactivation. Protection is autonomous: OCP triggers within microseconds independent of ISENSE resistor value, TSD activates at 150–180°C die temperature, and UVLO disables logic below 7.8 V on VM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 8.2 V to 45 V - supports wide industrial motor rails including 24 V and 36 V systems without external regulation. |
| Peak Output Current | 5 A at 24 V, TA = 25°C - enables direct drive of medium-power DC motors without external heatsinking under nominal conditions. |
| Total RDS(on) | 0.4 Ω typical (HS + LS) - minimizes conduction loss and self-heating at full load; confirmed at 24 V and 25°C. |
| Current Control Resolution | 32 discrete levels via I0–I4 pins - allows fine-grained torque/stall current tuning without microcontroller PWM overhead. |
| V3P3OUT Regulator | 3.3 V ±0.1 V, 1 mA max - powers external logic or supplies VREF, eliminating need for separate LDO in many designs. |
| Fault Reporting | Open-drain nFAULT pin - asserts low on OCP, TSD, or UVLO; compatible with standard 3.3-V or 5-V interrupt inputs. |
| Thermal Resistance | RθJA = 31.6 °C/W (HTSSOP-28 PowerPAD™) - defines maximum power dissipation limit (≈1.5 W) before junction exceeds 150°C at 85°C ambient. |
Pinout & Package
DRV8840PWP is housed in a thermally enhanced 28-pin HTSSOP package (9.70 mm × 4.40 mm) with exposed PowerPAD™ (GND-connected) for PCB-level heat sinking. RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (14, 28) | Power ground / thermal pad connection | Primary return path for motor current and IC logic; PowerPAD™ must be soldered to large copper pour for thermal performance. |
| VM (4, 11) | H-bridge power supply input | Must connect both pins to same 8.2–45 V rail; decoupling requires 0.1-μF ceramic capacitor per pin near package. |
| OUT1 (5, 10), OUT2 (7, 8) | H-bridge motor outputs | Paired pins share internal routing; connect each pair directly to motor terminals to minimize loop inductance. |
| ISEN (6, 9) | Current sense input | Differential node referenced to GND; connects across external sense resistor; blanking time = 3.75 μs after enable. |
| PHASE (20), ENBL (21) | Direction and enable control | Asynchronous logic interface: PHASE sets polarity, ENBL enables bridge; both have 100-kΩ internal pulldowns. |
| DECAY (19) | Decay mode select | Low = slow decay (brake), high = fast decay (coast); internal 130-kΩ pullup + 80-kΩ pulldown enables mixed-mode default. |
| nFAULT (18) | Fault status output | Open-drain active-low signal indicating OCP, TSD, or UVLO; requires external pullup to system logic voltage. |
| V3P3OUT (15) | On-chip 3.3-V regulator output | Stable 3.3 V ±0.1 V source; bypass with 0.47-μF ceramic capacitor; usable as VREF supply or MCU I/O rail. |
Key Features
| Feature | Design Value |
|---|---|
| Five-bit current control (I0–I4) | Enables 32 programmable current levels mapped to 0–100% full-scale, allowing precise stall current limiting without software PWM. |
| Programmable decay mode | DECAY pin selects brake (slow decay) or coast (fast decay) behavior during ENBL deactivation - critical for controlled motor stopping. |
| Integrated 3.3-V regulator | V3P3OUT delivers regulated 3.3 V ±0.1 V at up to 1 mA, reducing BOM count and simplifying biasing for VREF or external logic. |
| Autonomous overcurrent protection | OCP operates independently of ISENSE resistor or VREF setting, triggering within microseconds on short-to-rail or winding faults. |
| Thermal shutdown with auto-recovery | TSD disables outputs at 150–180°C junction temperature and resumes operation automatically once die cools below safe threshold. |
Applications
| Printer Paper Feed Mechanism | Scanner Carriage Drive |
|---|---|
|
Use Scenario: Precise bidirectional movement of paper transport rollers under variable load and jam conditions. IC Role / Device Role: Single H-bridge driver regulating winding current to maintain consistent torque during acceleration/deceleration and stall events. Use Value: Five-bit current control prevents mechanical damage during paper jams; nFAULT alerts controller to halt motion and initiate recovery sequence. |
Use Scenario: High-speed linear positioning of optical carriage across document surface with repeatable start/stop accuracy. IC Role / Device Role: Motor driver executing PHASE/ENBL commands while using DECAY pin to select fast decay for smooth coast-to-stop motion. Use Value: 3.3-V regulator powers carriage position sensor; low RDS(on) minimizes heat buildup during frequent direction reversals. |
| Factory Automation Conveyor Module | Gaming Machine Actuator Control |
|
Use Scenario: Reliable intermittent drive of small-belt conveyors handling parts in industrial environments with ambient temperatures up to 85°C. IC Role / Device Role: Robust motor interface managing thermal cycling and voltage transients; uses UVLO and TSD to prevent unsafe operation. Use Value: HTSSOP PowerPAD™ package sustains 5-A peak loads with minimal PCB area; nSLEEP reduces quiescent current to 10–20 μA during idle periods. |
Use Scenario: Responsive actuation of prize dispensers, lever mechanisms, or display elements requiring rapid, repeatable motion profiles. IC Role / Device Role: Compact motor driver accepting parallel digital control from game logic board; fault reporting ensures fail-safe behavior during coin validation sequences. Use Value: Parallel interface eliminates timing-critical serial communication; built-in charge pump enables full 45-V operation without external gate drivers. |
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 |
|---|---|---|---|
| DRV8871PWPR | Single H-bridge, 45-V max, but only 3.6-A continuous rating; no integrated V3P3OUT; uses SPI interface instead of parallel I[4:0]. | Lacks on-chip 3.3-V regulator and five-bit analog current scaling - requires external reference and microcontroller-based current control. | Select when SPI control and lower current capability are acceptable, and board space permits external regulation. |
| MP6532GQ-Z | Single H-bridge, 40-V max, 5-A peak, but only 3-bit current control (8 levels); no nFAULT pin; different pinout and no PowerPAD™. | Missing fault reporting and coarse current resolution reduce diagnostic capability and torque precision in closed-loop systems. | Choose for cost-sensitive, non-fault-critical applications where simplified control and smaller footprint outweigh feature gaps. |
Compared with DRV8840PWP, DRV8871PWPR trades parallel simplicity for digital configurability and reduced integration, while MP6532GQ-Z sacrifices fault visibility and current granularity for lower unit cost - making DRV8840PWP optimal for applications demanding robust diagnostics, analog current tuning, and thermal reliability in automated equipment.
Availability
DRV8840PWP is available at Aetrix Electronics and suitable for printer paper feed systems, scanner carriage drives, and factory automation conveyor modules requiring stable component supply, long-term manufacturability, and automotive-grade thermal resilience.
Supply support for DRV8840PWP 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 IC design and industrial-grade reliability.
The DRV8840 belongs to TI's high-voltage H-bridge driver product line, engineered specifically for cost-effective, thermally efficient brushed DC motor control in office automation, industrial machinery, and consumer electromechanical systems.
FAQ
What is the maximum continuous output current specification for the DRV8840PWP?
The DRV8840PWP supports 3.5-A continuous output current at 24 V and 25°C ambient temperature with proper PCB heatsinking. This rating assumes use of the PowerPAD™ thermal pad connected to ≥1 in² of 2-oz copper. Peak current reaches 5 A for short durations, but sustained operation above 3.5 A requires derating based on thermal resistance (RθJA = 31.6 °C/W) and ambient conditions.
How does the DRV8840PWP implement current regulation without an external microcontroller?
The DRV8840PWP uses a hardware-based five-bit digital interface (I0–I4 pins) to set current level, combined with an internal 5× gain current-sense amplifier and comparator. The VREF pin accepts an analog reference (1–3.5 V), and the I[4:0] inputs select one of 32 predefined current thresholds - enabling fully autonomous PWM current chopping without firmware involvement.
Can the DRV8840PWP drive stepper motors, or is it limited to brushed DC motors?
The DRV8840PWP is explicitly designed for single brushed DC motor control and is not suitable for bipolar stepper motor driving. While it can energize one winding at a time, it lacks dual H-bridge architecture, step/direction logic, or microstepping capability. TI's DRV8825 or DRV8880 are purpose-built alternatives for stepper applications.
What is the function of the CP1 and CP2 pins on the DRV8840PWP?
CP1 and CP2 form the flying capacitor terminals of an internal charge pump circuit that generates the high-side gate drive voltage (VCP). A 0.01-μF, 50-V ceramic capacitor must be connected between CP1 and CP2 to enable full 45-V operation of the NMOS H-bridge. Without this capacitor, high-side FETs cannot turn on reliably above ~12 V.
Does the DRV8840PWP require external components for basic operation, and which ones are mandatory?
Yes - mandatory external components include: (1) 0.01-μF capacitor between CP1–CP2, (2) 0.1-μF ceramic capacitor on each VM pin, (3) 0.47-μF capacitor on V3P3OUT, (4) current sense resistor (e.g., 100 mΩ) between ISEN and GND, and (5) pullup resistor on nFAULT. Optional but recommended: RC network for VREF and bulk capacitance on VM.
DRV8840PWP 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:
- -
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (2)
- Interface:
- Parallel
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 3.5A
- 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
DRV8840PWP FAQ
1.How can I place an order for DRV8840PWP through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8840PWP 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 DRV8840PWP reliable?
The price and inventory of DRV8840PWP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8840PWP is usually 5 days.
3.What payment methods are accepted for DRV8840PWP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8840PWP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8840PWP?
DRV8840PWP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8840PWP 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 DRV8840PWP?
For technical support, including DRV8840PWP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8840PWP requirements.
6.How does Aetrix verify that DRV8840PWP is sourced from the original manufacturer or authorized distributors?
All DRV8840PWP 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 DRV8840PWP meets industry standards.
7.What is the process for return or replacement of DRV8840PWP?
All DRV8840PWP units undergo pre-shipment inspection (PSI). If there is an issue with DRV8840PWP, 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 DRV8840PWP part is unused and in its original packaging.
Return procedure for DRV8840PWP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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