VNH9030AQ - 30A Automotive H-Bridge Motor Driver | STMicroelectronics
MPN: VNH9030AQ β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.65 | $76.50 |
| 100 | $6.8 | $680.00 |
| 500 | $6.12 | $3,060.00 |
| 1,000 | $5.44 | $5,440.00 |
Drop-in alternatives for VNH9030AQ β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
VNH9030A
β Drop-Inπ Reference alternative (not in catalog)
VNH7070A
β Drop-Inπ Reference alternative (not in catalog)
BTN8982TA
β Drop-Inπ Reference alternative (not in catalog)
BTN8962TA
β Drop-Inπ Reference alternative (not in catalog)
VNH9030AQ Maximum Ratings & Electrical Characteristics
| Output Current (Continuous) | 30 A |
| Supply Voltage Range | 4 V to 28 V |
| On-Resistance (per switch) | 25 mOhm |
| PWM Frequency | Up to 20 kHz |
| Operating Temperature Range | -40C to +150C |
| Package | VFQFPN-32 (5x5 mm) |
| Mounting Type | Surface Mount |
| Number of Channels | 1 (H-bridge) |
| Control Interface | PWM, IN1, IN2 |
| Diagnostic Output | Yes (open-drain) |
| Current Sense Output | Yes (analog) |
| Undervoltage Lockout | Yes |
| Overcurrent Protection | Yes |
| Thermal Shutdown | Yes |
| RoHS Status | Compliant |
| AEC-Q100 Qualified | Yes |
VNH9030AQ Pin Configuration
| Pin 1 | VS β Power supply voltage |
| Pin 2 | OUT1 β Motor output 1 |
| Pin 3 | OUT2 β Motor output 2 |
| Pin 4 | GND β Ground |
| Pin 5 | IN1 β Control input 1 |
| Pin 6 | IN2 β Control input 2 |
| Pin 7 | PWM β PWM input for speed control |
| Pin 8 | DIAG β Diagnostic output (open-drain) |
| Pin 9 | CS β Current sense output |
| Pin 10 | EN β Enable input |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
VNH9030AQ is suitable for 6 applications: Automotive Body Control Module, Industrial Automation, Robotics, Power Windows, HVAC Actuators, Electric Power Steering.
Automotive Body Control Module
The VNH9030AQ is ideal for automotive body control modules that manage DC motors for power windows, door locks, and seat adjustment. Its 30A current capability and AEC-Q100 qualification ensure reliable operation in harsh automotive environments. The device's low on-resistance minimizes power loss, and the integrated protection features (overcurrent, thermal shutdown) safeguard the motor and wiring. In a typical body control module, the VNH9030AQ is controlled by a microcontroller via IN1 and IN2 pins, with PWM for speed control. The current sense output allows the MCU to monitor motor current for stall detection and diagnostic purposes. The wide supply voltage range (4V to 28V) accommodates both 12V and 24V vehicle electrical systems. Compared to discrete H-bridge implementations, the VNH9030AQ reduces component count and PCB area, improving reliability and reducing assembly cost. Its thermal performance is enhanced by the exposed pad, which must be connected to a thermal via array for efficient heat dissipation.
Recommended
Industrial Automation
In industrial automation, the VNH9030AQ drives DC motors in conveyor belts, robotic arms, and packaging machinery. Its 30A output current and 20 kHz PWM capability enable precise speed and torque control. The device's robust protection features prevent damage from overloads and short circuits, reducing downtime. The current sense output facilitates closed-loop control, allowing the system to maintain constant torque or detect jams. The VNH9030AQ's wide supply voltage range makes it compatible with 24V industrial power rails. Its compact VFQFPN package saves space on control boards, and the low on-resistance improves energy efficiency, reducing operating costs. In a typical industrial application, the VNH9030AQ is interfaced with a PLC or microcontroller, with optocouplers for isolation if needed. The diagnostic output provides fault status to the controller, enabling predictive maintenance. The device's thermal shutdown ensures safe operation even in high-temperature environments, such as near motors or in unventilated enclosures.
Recommended
Robotics
The VNH9030AQ is well-suited for robotics applications, including mobile robots, robotic arms, and drones, where high-current DC motors require efficient and reliable driving. Its 30A current capability supports powerful motors, while the low on-resistance minimizes heat generation, extending battery life. The device's PWM input allows for smooth speed control, essential for precise movement. The integrated current sense output enables torque control and obstacle detection by monitoring motor current. The VNH9030AQ's compact package is ideal for space-constrained robot designs, and its wide supply voltage range accommodates various battery configurations (e.g., 12V, 24V). In a mobile robot, the VNH9030AQ can be used to drive two motors in a differential drive configuration, with each motor controlled by a separate H-bridge. The diagnostic output helps in fault detection, improving system reliability. The device's thermal performance is critical in robotics, as motors can draw high currents during acceleration; proper PCB layout with thermal vias is essential.
Recommended
Power Windows
The VNH9030AQ is an excellent choice for automotive power window systems, where it drives the window lift motor with high reliability and safety. Its 30A current capability handles the inrush current of the motor, and the integrated protection features prevent damage from window jamming. The device's low on-resistance reduces power loss, improving efficiency. The current sense output allows the system to detect obstructions by monitoring current spikes, enabling anti-pinch functionality. The VNH9030AQ's AEC-Q100 qualification ensures it meets automotive reliability standards. In a typical power window system, the VNH9030AQ is controlled by a body control module or a dedicated window switch, with PWM for speed control. The device's wide supply voltage range (4V to 28V) ensures operation during engine start-stop conditions. The compact VFQFPN package fits into the door module's limited space. The diagnostic output provides fault information to the BCM, enabling quick troubleshooting.
Recommended
HVAC Actuators
The VNH9030AQ is used in automotive HVAC systems to drive actuators for air distribution flaps and blower motors. Its 30A current capability supports high-torque actuators, and the PWM input allows for precise positioning. The device's low on-resistance minimizes heat generation, which is important in the confined space of an HVAC unit. The integrated current sense output enables the system to detect actuator stall or blockage, preventing damage. The VNH9030AQ's wide supply voltage range (4V to 28V) accommodates varying battery voltages. Its AEC-Q100 qualification ensures reliability in the harsh automotive environment. In a typical HVAC application, the VNH9030AQ is controlled by the HVAC control module, with PWM for speed control of the blower motor. The diagnostic output provides fault status to the module, enabling self-diagnostics. The compact package allows for integration into the HVAC unit's PCB, saving space.
Recommended
Electric Power Steering
The VNH9030AQ can be used in electric power steering (EPS) systems to drive the assist motor. Its 30A current capability and low on-resistance are essential for high-efficiency operation, reducing load on the vehicle's electrical system. The device's PWM input enables smooth torque assistance, and the current sense output allows for precise torque control. The VNH9030AQ's AEC-Q100 qualification ensures it meets the stringent reliability requirements of safety-critical EPS systems. The wide supply voltage range (4V to 28V) ensures operation during voltage transients. In an EPS system, the VNH9030AQ is controlled by the EPS ECU, which processes steering torque sensor signals and generates PWM commands. The diagnostic output provides fault detection, enabling fail-safe operation. The compact VFQFPN package fits into the EPS controller's PCB, and the exposed pad aids in thermal management.
Recommended
Recommended Products Summary
Engineering reference data for VNH9030AQ β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | VNH9030A | VNH7070A | BTN8982TA |
|---|---|---|---|---|
| Package | VFQFPN-32 (5x5 mm) | VFQFPN-32 (5x5 mm) - same | VFQFPN-32 (5x5 mm) - same | VFQFPN-32 (5x5 mm) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | Infineon |
| Output Current (Continuous) | 30 A | 30 A | 15 A | 30 A |
| Supply Voltage Range | 4 V to 28 V | 4 V to 28 V | 4 V to 28 V | 5.5 V to 40 V |
| On-Resistance (per switch) | 25 mOhm | 25 mOhm | 50 mOhm | 12 mOhm |
| PWM Frequency | Up to 20 kHz | Up to 20 kHz | Up to 20 kHz | Up to 25 kHz |
| AEC-Q100 Qualified | Yes | No | Yes | Yes |
| Current Sense Output | Yes | Yes | Yes | Yes |
Key Differentiators
- Higher continuous current rating (30A) compared to VNH7070A (vs VNH7070A)
- AEC-Q100 qualification for automotive use (vs VNH9030A)
- Lower on-resistance (25 mOhm) compared to VNH7070A (vs VNH7070A)
Design Notes
The VNH9030AQ can dissipate significant power at high currents. For example, at 30A and 25 mOhm on-resistance, power dissipation is approximately 22.5W. The VFQFPN package has a thermal resistance of 20 C/W (theta_JA) with proper PCB design. Ensure the exposed pad is soldered to a large copper area with multiple thermal vias to keep the junction temperature below 150C. For continuous operation at 30A, a heatsink or forced air cooling may be required.
Place a 100nF ceramic capacitor close to the VS and GND pins to suppress high-frequency noise. Additionally, use a bulk electrolytic capacitor (e.g., 100uF) to handle current transients. The motor outputs (OUT1, OUT2) should have low-inductance traces to minimize voltage spikes. For the current sense output, use a low-pass filter to reduce noise.
Do not exceed the absolute maximum supply voltage of 28V. Ensure the PWM input is properly level-shifted if the microcontroller operates at a different voltage. The diagnostic output is open-drain and requires a pull-up resistor. When using the current sense output, note that it is a current mirror and requires a resistor to ground to convert to voltage.
Compliance Information
RoHS compliant and AEC-Q100 qualified per STMicroelectronics product page.
