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DRV8803DWR
Texas Instruments
IC MTR DRV UNIPLR 8.2-60V 20SOIC
3834 Pcs New Original In Stock
Unipolar Motor Driver Power MOSFET Parallel 20-SOIC
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5.0 / 5.0
- (514 Ratings)
DRV8803DWR
Product Overview
1386776
DiGi Electronics Part Number
DRV8803DWR-DGManufacturer
Texas Instruments
DRV8803DWR
Description
IC MTR DRV UNIPLR 8.2-60V 20SOICInventory
3834 Pcs New Original In Stock
Unipolar Motor Driver Power MOSFET Parallel 20-SOIC
Quantity
Minimum 1
Minimum 1
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DRV8803DWR Technical Specifications
Category
Power Management (PMIC), Motor Drivers, Controllers
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
Motor Type - Stepper
Unipolar
Motor Type - AC, DC
Brushed DC
Function
Driver - Fully Integrated, Control and Power Stage
Output Configuration
Low Side (4)
Interface
Parallel
Technology
Power MOSFET
Step Resolution
-
Applications
General Purpose
Current - Output
800mA
Voltage - Supply
8.2V ~ 60V
Voltage - Load
8.2V ~ 60V
Operating Temperature
-40°C ~ 150°C (TJ)
Mounting Type
Surface Mount
Package / Case
20-SOIC (0.295", 7.50mm Width)
Supplier Device Package
20-SOIC
Base Product Number
DRV8803
Datasheet & Documents
Manufacturer Product Page
DRV8803DWR Specifications
HTML Datasheet
DRV8803DWR-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
2 (1 Year)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
296-46294-6
296-46294-2
DRV8803DWR-DG
296-46294-1
Standard Package
2,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
他們的包裝設計巧妙，既堅固又不失美觀，展現專業水準。
de desembre 02, 2025
Order confirmation and shipping notices were prompt, keeping me well-informed.
de desembre 02, 2025
Rapid delivery combined with affordable prices really stands out. Will shop again.
de desembre 02, 2025
Quick shipping and sturdy products make DiGi Electronics my trusted supplier for electronic components.
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Frequently Asked Questions (FAQ)
How do I ensure thermal stability when using the DRV8803DWR in high-current applications with limited PCB copper area?
When using the DRV8803DWR in high-current applications, especially near its 800mA output limit, thermal management is critical due to power dissipation in the internal power MOSFETs. With limited PCB copper for heatsinking, ensure at least 2oz copper and use thermal vias under the exposed pad (if present) to transfer heat to inner or back-side ground planes. Monitor junction temperature under worst-case conditions (60V supply, continuous load), and derate current by 20–30% if ambient exceeds 70°C. Consider adding a small heatsink or forced airflow if TJ approaches 130°C to avoid thermal shutdown or long-term reliability degradation.
Can the DRV8803DWR replace the A3966SLB-T in a unipolar stepper motor driver circuit without redesigning the control logic?
The DRV8803DWR can replace the A3966SLB-T in unipolar stepper applications, but careful validation is required. While both are fully integrated unipolar motor drivers with parallel interfaces, the DRV8803DWR uses low-side N-channel MOSFETs and requires high-side pull-up resistors externally, whereas the A3966 includes internal pull-ups. You must add external pull-up resistors (typically 10Ω–100Ω) on each motor coil connection when replacing. Also verify timing compatibility—DRV8803DWR has different enable and phase control sequencing; check setup/hold times to prevent unintended current paths or motor jitter.
What are the risks of operating the DRV8803DWR at the upper end of its 60V load voltage range with inductive kickback from brushed DC motors?
Operating the DRV8803DWR at 60V with inductive brushed DC motors increases risk of voltage overshoot during turn-off due to L×di/dt spikes. Although the device includes internal clamping diodes, sustained or high-energy transients can exceed the 60V absolute maximum rating and degrade reliability. To mitigate, add external flyback diodes with fast recovery (e.g., 1N4005 or Schottky) across each motor winding. Also consider RC snubbers or TVS diodes (e.g., 68V P6KE series) at the output to absorb transient energy and protect the internal MOSFETs, especially in high-inertia or frequently reversing loads.
Is the DRV8803DWR suitable for automotive load dump conditions where supply transients exceed 60V?
The DRV8803DWR is not suitable for direct exposure to automotive load dump events, which can reach 80V for hundreds of milliseconds. Since its maximum supply and load voltage is 60V, such transients risk permanent damage despite its 150°C junction rating. Use a front-end transient voltage suppressor (TVS) such as a 68V bidirectional SMAJ68A or active clamp circuit to limit input voltage. Additionally, implement an external load switch or pre-charge circuit to isolate the DRV8803DWR during fault conditions, ensuring robust operation in 12V or 24V automotive systems.
How does the parallel interface of the DRV8803DWR impact real-time motor control latency compared to SPI-based drivers like the DRV8830?
The parallel interface of the DRV8803DWR enables direct GPIO control, offering lower latency than I²C or SPI-based drivers like the DRV8830, which require protocol handshaking and register writes. This makes the DRV8803DWR better for time-critical or jitter-sensitive unipolar stepper applications where immediate phase switching is needed. However, it consumes more MCU GPIOs (4+ control lines) versus the DRV8830’s 2-wire interface. Use the DRV8803DWR when deterministic control speed is critical; use SPI/I²C drivers when system complexity and pin count must be minimized.
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DRV8803DWR CAD Models
Texas Instruments DRV8803DWR PCB symbols & footprints
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