VNH3SP30 - 30A Full-Bridge Motor Driver | STMicroelectronics
MPN: VNH3SP30 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $10 | $1,000.00 |
| 500 | $9 | $4,500.00 |
| 1,000 | $8.1 | $8,100.00 |
VNH3SP30 Overview
A full-bridge motor driver, also known as an H-bridge, is a power electronics circuit that allows a DC motor to be driven in both directions (forward and reverse) by controlling the polarity of the voltage applied across the motor terminals. It consists of four switching elements (typically MOSFETs or IGBTs) arranged in an 'H' configuration. The VNH3SP30 integrates these switches along with protection and diagnostic features, simplifying the design of motor control systems. In the hierarchy of motor control, the H-bridge driver sits between the microcontroller (which generates PWM signals) and the motor itself, translating low-power logic signals into high-current drive capability.
Key features of the VNH3SP30 include a wide operating voltage range (5.5V to 36V), a maximum output current of 30A, and a low on-resistance (RDS(on)) of 0.05 ohms per switch, which minimizes power dissipation. The device supports both parallel and PWM control modes, allowing flexible speed and direction control. It also includes built-in protection features such as undervoltage lockout, overcurrent protection, and thermal shutdown, ensuring reliable operation in harsh environments.
The VNH3SP30 is built using ST's proprietary VIPower M0 technology, which integrates the power MOSFETs and control logic on a single chip. This monolithic approach reduces parasitic inductance and improves switching performance compared to discrete solutions. The MultiPowerSO-30 package provides excellent thermal performance, with a thermal resistance of 1.5°C/W, enabling the driver to handle high currents without external heatsinks in many applications.
Typical applications include automotive systems such as power windows, seat adjusters, and wiper motors, as well as industrial automation, robotics, and electric vehicles. The device's ability to handle 30A makes it ideal for driving large DC motors in actuators, pumps, and conveyor systems. Its automotive-grade qualification (AEC-Q100) ensures reliability in demanding environments.
When designing with the VNH3SP30, it is essential to provide adequate bulk capacitance on the power supply to handle the high inrush currents of DC motors. Additionally, proper PCB layout with wide copper traces and thermal vias is critical to dissipate heat effectively. The device's PWM input allows for speed control, but the PWM frequency should be chosen carefully to balance switching losses and motor noise.
Drop-in alternatives for VNH3SP30 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with VNH3SP30 (same form factor and footprint) — differing in Mounting Type, Package, Automotive Grade, Continuous Output Current, Function.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
VNH3SP30-E
✅ Drop-In✓ In Stock
$4.1 / Unit
View Datasheet →VNH3SPTR-E
✅ Drop-In📋 Reference alternative (not in catalog)
VNH5019A-E
✅ Drop-In📋 Reference alternative (not in catalog)
VNH2SP30
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
BTN8982TA
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
VNH3SP30 Maximum Ratings & Electrical Characteristics
| Function | Full-bridge motor driver |
| Supply Voltage Range | 5.5 V to 36 V |
| Maximum Output Current | 30 A |
| On-Resistance (RDS(on)) | 0.05 ohm per switch |
| Control Interface | Parallel, PWM |
| Package | MultiPowerSO-30 |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40°C to +150°C |
| Thermal Resistance, Junction-to-Ambient | 1.5 °C/W |
| Undervoltage Lockout | Yes |
| Overcurrent Protection | Yes |
| Thermal Shutdown | Yes |
| Automotive Grade | AEC-Q100 qualified |
| RoHS Status | Compliant |
| Logic Level | 5V logic (not 3.3V compatible) |
VNH3SP30 Pin Configuration
| Pin 1 | OUT1 — Motor output 1 |
| Pin 2 | OUT1 — Motor output 1 |
| Pin 3 | OUT1 — Motor output 1 |
| Pin 4 | OUT1 — Motor output 1 |
| Pin 5 | OUT1 — Motor output 1 |
| Pin 6 | OUT1 — Motor output 1 |
| Pin 7 | OUT1 — Motor output 1 |
| Pin 8 | OUT1 — Motor output 1 |
| Pin 9 | OUT1 — Motor output 1 |
| Pin 10 | OUT1 — Motor output 1 |
| Pin 11 | OUT1 — Motor output 1 |
| Pin 12 | OUT1 — Motor output 1 |
| Pin 13 | OUT1 — Motor output 1 |
| Pin 14 | OUT1 — Motor output 1 |
| Pin 15 | OUT1 — Motor output 1 |
| Pin 16 | OUT1 — Motor output 1 |
| Pin 17 | OUT1 — Motor output 1 |
| Pin 18 | OUT1 — Motor output 1 |
| Pin 19 | OUT1 — Motor output 1 |
| Pin 20 | OUT1 — Motor output 1 |
| Pin 21 | OUT1 — Motor output 1 |
| Pin 22 | OUT1 — Motor output 1 |
| Pin 23 | OUT1 — Motor output 1 |
| Pin 24 | OUT1 — Motor output 1 |
| Pin 25 | OUT1 — Motor output 1 |
| Pin 26 | OUT1 — Motor output 1 |
| Pin 27 | OUT1 — Motor output 1 |
| Pin 28 | OUT1 — Motor output 1 |
| Pin 29 | OUT1 — Motor output 1 |
| Pin 30 | OUT1 — Motor output 1 |
Typical Applications
VNH3SP30 is suitable for 6 applications: Automotive Power Windows, Industrial Conveyor Systems, Robotics Actuators, Electric Vehicle (EV) Auxiliary Motors, Medical Equipment, Home Automation.
Automotive Power Windows
The VNH3SP30 is ideal for automotive power window systems, where it drives the window lift motor with high current and reliability. Its 30A output capability ensures smooth operation even under heavy loads, while the AEC-Q100 qualification guarantees performance in harsh automotive environments. The integrated protection features, such as overcurrent and thermal shutdown, prevent damage during stall conditions. In a typical power window application, the VNH3SP30 is controlled by a body control module (BCM) via PWM signals, allowing precise speed and direction control. The device's low on-resistance minimizes power loss, reducing heat generation and improving overall system efficiency. Compared to discrete H-bridge solutions, the VNH3SP30 simplifies the design by integrating all power switches and protection circuitry in a single package, saving PCB space and reducing component count.
Recommended
Industrial Conveyor Systems
In industrial conveyor systems, the VNH3SP30 drives DC motors that move goods along assembly lines. Its high current rating (30A) and wide supply voltage range (5.5V to 36V) make it suitable for both 12V and 24V conveyor systems. The device's PWM control capability allows for variable speed control, enabling precise positioning and smooth acceleration. The integrated protection features ensure reliable operation in dusty and harsh industrial environments. In a typical conveyor application, the VNH3SP30 is interfaced with a PLC or industrial microcontroller, which sends PWM signals to control motor speed and direction. The device's low on-resistance reduces power dissipation, allowing it to operate without a heatsink in many cases. The MultiPowerSO-30 package provides excellent thermal performance, and the device's automotive-grade reliability makes it a robust choice for continuous industrial operation.
Recommended
Robotics Actuators
The VNH3SP30 is well-suited for robotics applications, particularly for driving DC motors in robotic arms and mobile robots. Its 30A output current can handle the high torque demands of robotic actuators, while the PWM input allows for precise speed and position control. The device's compact MultiPowerSO-30 package is ideal for space-constrained robot designs. In a typical robotics application, the VNH3SP30 is controlled by a microcontroller or a dedicated motor controller, which generates PWM signals to regulate motor speed. The device's integrated protection features, such as overcurrent and thermal shutdown, protect the motor and driver from damage during stalls or overloads. The low on-resistance ensures efficient operation, extending battery life in mobile robots. The VNH3SP30's automotive-grade reliability makes it suitable for demanding robotics applications that require long-term durability.
Recommended
Electric Vehicle (EV) Auxiliary Motors
In electric vehicles, the VNH3SP30 is used to drive auxiliary motors such as those for cooling fans, pumps, and window lifts. Its high current capability and automotive-grade qualification make it ideal for the demanding environment of EVs. The device's wide supply voltage range accommodates the varying battery voltages in EVs, and its PWM control allows for efficient speed regulation. In a typical EV application, the VNH3SP30 is controlled by the vehicle's electronic control unit (ECU), which sends PWM signals to regulate motor speed. The device's low on-resistance minimizes power loss, improving overall vehicle efficiency. The integrated protection features ensure reliable operation under extreme conditions, such as high temperatures and voltage transients. The MultiPowerSO-30 package provides excellent thermal performance, allowing the device to handle high currents without external cooling in many cases.
Recommended
Medical Equipment
The VNH3SP30 is used in medical equipment such as hospital beds, surgical tables, and diagnostic devices that require precise motor control. Its high current rating and reliable operation make it suitable for critical applications where failure is not an option. The device's PWM control allows for smooth and accurate movement, essential for patient comfort and safety. In a typical medical application, the VNH3SP30 is controlled by a microcontroller or a dedicated motor controller, which generates PWM signals to regulate motor speed and direction. The device's integrated protection features, such as overcurrent and thermal shutdown, ensure safe operation in the event of a fault. The low on-resistance minimizes power dissipation, reducing heat generation and improving system reliability. The VNH3SP30's automotive-grade quality ensures long-term reliability, which is critical in medical environments.
Recommended
Home Automation
In home automation systems, the VNH3SP30 can be used to drive motors in smart curtains, garage doors, and HVAC dampers. Its high current capability and PWM control allow for smooth and quiet operation, enhancing user comfort. The device's compact package and integrated protection features make it easy to integrate into smart home devices. In a typical home automation application, the VNH3SP30 is controlled by a smart home hub or a microcontroller, which sends PWM signals to regulate motor speed and direction. The device's low on-resistance ensures efficient operation, reducing energy consumption. The integrated protection features protect the motor and driver from damage due to overloads or faults. The VNH3SP30's wide supply voltage range makes it compatible with various power sources, from 12V to 24V, commonly used in home automation systems.
Recommended
Recommended Products Summary
Engineering reference data for VNH3SP30 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | VNH3SP30-E | VNH3SPTR-E | VNH5019A-E | VNH2SP30 | BTN8982TA |
|---|---|---|---|---|---|---|
| Package | MultiPowerSO-30 | MultiPowerSO-30 | MultiPowerSO-30 | MultiPowerSO-30 | MultiPowerSO-30 | MultiPowerSO-30 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | Infineon |
| Maximum Output Current | 30 A | 30 A | 30 A | 30 A | 30 A | 30 A |
| Supply Voltage Range | 5.5V to 36V | 5.5V to 36V | 5.5V to 36V | 5.5V to 36V | 5.5V to 36V | 5.5V to 40V |
| On-Resistance (RDS(on)) | 0.05 ohm | 0.05 ohm | 0.05 ohm | 0.05 ohm | 0.05 ohm | 0.05 ohm |
| Logic Level | 5V | 5V | 5V | 3.3V and 5V | 5V | 3.3V and 5V |
| Automotive Grade | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 |
| Control Interface | Parallel, PWM | Parallel, PWM | Parallel, PWM | Parallel, PWM | Parallel, PWM | Parallel, PWM |
Key Differentiators
- High current capability of 30A (vs VNH5019A-E)
- Automotive-grade AEC-Q100 qualification (vs BTN8982TA)
- Low on-resistance of 0.05 ohms (vs VNH2SP30)
Design Notes
Ensure adequate bulk capacitance (e.g., 1000uF electrolytic) on the power supply to handle the high inrush current of DC motors. The VNH3SP30 can draw up to 30A, which can cause voltage dips if the supply is not stiff. Place the capacitor close to the VCC pin to minimize inductance.
The VNH3SP30 can dissipate significant power at high currents. With an RDS(on) of 0.05 ohms, at 30A the power dissipation is P = I^2 * R = 30^2 * 0.05 = 45W. This requires a heatsink or a large copper area on the PCB. The MultiPowerSO-30 package has a thermal resistance of 1.5°C/W, so a heatsink is essential for continuous operation at high currents.
Use wide, short traces for the motor output and power supply connections to minimize resistance and inductance. The high current paths should be at least 2mm wide for 30A. Additionally, use thermal vias under the exposed pad to improve heat transfer to the ground plane.
Compliance Information
The VNH3SP30-E is lead-free and RoHS compliant. AEC-Q100 qualified for automotive applications.
