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DRV8840PWP
Texas Instruments
IC MOTOR DRVR 8.2V-45V 28HTSSOP
2319 Pcs New Original In Stock
Motor Driver Power MOSFET Parallel 28-HTSSOP
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5.0 / 5.0
- (308 Ratings)
DRV8840PWP
Product Overview
1283493
DiGi Electronics Part Number
DRV8840PWP-DGManufacturer
Texas Instruments
DRV8840PWP
Description
IC MOTOR DRVR 8.2V-45V 28HTSSOPInventory
2319 Pcs New Original In Stock
Motor Driver Power MOSFET Parallel 28-HTSSOP
Quantity
Minimum 1
Minimum 1
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DRV8840PWP Technical Specifications
Category
Power Management (PMIC), Motor Drivers, Controllers
Packaging
Tube
Series
-
Product Status
Active
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)
Mounting Type
Surface Mount
Package / Case
28-PowerTSSOP (0.173", 4.40mm Width)
Supplier Device Package
28-HTSSOP
Base Product Number
DRV8840
Datasheet & Documents
HTML Datasheet
DRV8840PWP-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
-296-28916-5-DG
296-28916-5
-DRV8840PWP-NDR
Standard Package
50
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
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de desembre 02, 2025
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de desembre 02, 2025
DiGi Electronics überzeugt durch sowohl große Lagerbestände als auch hervorragenden Support nach dem Kauf.
de desembre 02, 2025
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de desembre 02, 2025
DiGi Electronics consistently maintains an impressive stock level, ensuring I never have to worry about delays when sourcing components.
de desembre 02, 2025
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the DRV8840PWP in a high-temperature automotive environment, and how can thermal shutdown be avoided?
When integrating the DRV8840PWP in automotive applications near engine compartments, the primary risk is exceeding the 150°C junction temperature despite its wide -40°C to 150°C rating. Since the DRV8840PWP lacks built-in thermal feedback pins, designers must proactively manage heatsinking and PCB copper layout. Use at least 2 oz copper with multiple thermal vias under the exposed thermal pad to reduce θJA. Simulate worst-case power dissipation at 45V supply and 3.5A load, especially in continuous duty. Derate output current above 85°C ambient and consider adding external thermal monitoring on the PCB to preempt thermal shutdown events caused by poor airflow or transient overloads.
Can the DRV8840PWP reliably replace the Allegro A4954 in an existing brushed DC motor driver design without layout changes?
Replacing the A4954 with the DRV8840PWP requires careful evaluation due to key differences despite similar function. The DRV8840PWP uses a 28-HTSSOP vs. A4954’s 24-TSSOP, so pin compatibility is not guaranteed. Check motor current profile: A4954 supports higher peak current (4A vs. 3.5A continuous on DRV8840PWP), making the latter less suitable for high-inrush loads. The DRV8840PWP’s parallel interface is compatible, but control timing requirements (like enable-to-clock delay) may differ. Always verify gate drive strength and dead-time characteristics to avoid shoot-through in high-frequency PWM applications. A redesign of gate drive loop layout is recommended to leverage the DRV8840PWP’s integrated low-RDS(on) FETs for lower conduction loss.
How does the DRV8840PWP handle inductive kickback in brushed DC motor applications, and what external protection is recommended?
The DRV8840PWP includes integrated freewheeling diodes and overcurrent protection (OCP) for inductive kickback suppression in brushed DC motor control. However, under rapid deceleration or sudden direction reversal, voltage spikes beyond 45V can occur and risk damaging the 45V-rated power stage. To mitigate this, TI recommends adding external ultrafast recovery diodes (e.g., 1N5819 or MBRB2045) across the motor terminals for snubbing. Additionally, place a low-ESR bulk capacitor (≥47μF) near the VM pin to absorb regenerative energy. Avoid relying solely on internal protection—design in a 10% voltage headroom margin and verify with oscilloscope capture during motor stall and startup transients.
What are the critical layout considerations to minimize EMI and switching noise when designing with the DRV8840PWP?
To minimize EMI in DRV8840PWP designs, keep high-current switching loops as small as possible: place 100nF ceramic bypass capacitors directly between VM and GND pins with short, wide traces. Route gate drive signals away from sensitive analog nodes and avoid parallel routing with control lines. Use a solid ground plane under the 28-HTSSOP package to reduce inductance and improve thermal dissipation. The enable (EN) and phase (PH) inputs are sensitive to noise; consider adding 10kΩ pull-down resistors if not actively driven. For systems passing CISPR 25 or automotive EMC tests, add a ferrite bead and RC snubber (10Ω + 100pF) on the OUTx pins close to the driver. Simulate switching behavior with IBIS models if operating above 20kHz PWM.
Is the DRV8840PWP suitable for battery-powered industrial tools operating below 9V, and what are the startup risks?
The DRV8840PWP has a minimum 8.2V supply requirement, making it marginal for battery-powered industrial tools when Li-ion packs drop below 9V under load. Although it may function briefly at 8.2V, motor startup torque could fail due to insufficient gate drive voltage—internal charge pump efficiency drops near UVLO threshold. Avoid using DRV8840PWP if battery voltage dips below 8.5V during peak loads. Instead, consider TI’s DRV8701-Q1 as a pre-driver companion with external FETs for better low-voltage performance. If sticking with DRV8840PWP, monitor VM with a supervisor IC (e.g., TLV803) to disable the driver during brownout and prevent undefined state or partial FET turn-on that increases heat and EMI risk.
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DRV8840PWP CAD Models
Texas Instruments DRV8840PWP PCB symbols & footprints
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