VNH5050A-E - 50A Automotive H-Bridge Driver | STMicroelectronics
MPN: VNH5050A-E β 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 |
Drop-in alternatives for VNH5050A-E 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:
VNH5019A-E
β Drop-Inπ Reference alternative (not in catalog)
VNH5050A-TR
β Drop-Inπ Reference alternative (not in catalog)
BTN8982TA
β Drop-Inπ Reference alternative (not in catalog)
BTN9970LV
β Drop-Inπ Reference alternative (not in catalog)
VNH5050A-E Maximum Ratings & Electrical Characteristics
| Output Current (Continuous) | 50 A |
| Output Current (Peak) | 70 A |
| Supply Voltage Range | 5.5 V to 18 V |
| ON-Resistance (per switch) | 20 mOhm |
| PWM Frequency | Up to 20 kHz |
| Logic Supply Output | 5 V |
| Current Sense Ratio | 1/5000 |
| Diagnostic Output | Yes |
| Undervoltage Lockout | Yes |
| Overvoltage Clamp | Yes |
| Thermal Shutdown | Yes |
| Load Current Limitation | Yes |
| Package | MultiPowerSO-30 (12 pins) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +150C |
| RoHS Status | Compliant |
VNH5050A-E Pin Configuration
| Pin 1 | VCC β Power supply input |
| Pin 2 | GND β Ground |
| Pin 3 | IN1 β Input 1 for direction control |
| Pin 4 | IN2 β Input 2 for direction control |
| Pin 5 | PWM β PWM input for speed control |
| Pin 6 | CS β Current sense output |
| Pin 7 | DIAG β Diagnostic output |
| Pin 8 | OUT1 β Motor output 1 |
| Pin 9 | OUT2 β Motor output 2 |
| Pin 10 | VCC β Power supply input |
| Pin 11 | GND β Ground |
| Pin 12 | VCC β Power supply 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
VNH5050A-E is suitable for 6 applications: Automotive Power Windows, Sunroof Control, Seat Adjusters, Industrial Conveyor Belt, Pump Control, Actuator Systems.
Automotive Power Windows
The VNH5050A-E drives the DC motor for power windows with high current capability (50 A continuous) and robust protection. Its low ON-resistance (20 mOhm) minimizes power loss, and the current sense output enables anti-pinch detection. The device operates from the 12 V automotive battery and withstands load dump transients. PWM control up to 20 kHz allows smooth speed regulation. The integrated diagnostic output reports faults such as overcurrent and overtemperature, enhancing system reliability. The MultiPowerSO-30 package with exposed pad ensures efficient heat dissipation in the confined door module space.
Recommended
Sunroof Control
The VNH5050A-E provides bidirectional control for sunroof motors, with 50 A peak current handling for stall conditions. The current sense output allows precise position control and obstacle detection. The device's undervoltage lockout prevents erratic operation during cranking. Its thermal shutdown protects the motor and driver during prolonged operation. The wide supply range (5.5 V to 18 V) accommodates battery voltage variations. The integrated freewheeling diodes eliminate the need for external clamping diodes, simplifying the PCB design.
Recommended
Seat Adjusters
The VNH5050A-E drives seat adjustment motors with high efficiency and low noise. Its 20 mOhm ON-resistance reduces heat generation, allowing continuous operation. The current sense output enables load monitoring to detect obstructions. The device's diagnostic output provides real-time fault status to the body control module. The MultiPowerSO-30 package is compact enough for space-constrained seat modules. The device's protection features ensure safe operation under all conditions.
Recommended
Industrial Conveyor Belt
The VNH5050A-E controls conveyor belt motors in industrial automation, providing 50 A continuous current for high-torque applications. Its PWM input allows variable speed control, and the current sense output enables load monitoring. The device's robust protection features (overvoltage, undervoltage, thermal) ensure reliable operation in harsh environments. The wide supply range supports 12 V and 24 V industrial rails. The exposed pad package facilitates heat sinking for continuous operation.
Recommended
Pump Control
The VNH5050A-E drives DC pumps in automotive and industrial systems. Its high current capability (50 A) handles inrush currents during startup. The current sense output enables flow control and blockage detection. The device's diagnostic output provides fault indication for maintenance. The low ON-resistance improves energy efficiency, reducing operating costs. The device's protection features prevent damage from overcurrent and overtemperature.
Recommended
Actuator Systems
The VNH5050A-E drives linear actuators in automotive and industrial applications. Its bidirectional control allows extension and retraction, and the current sense output enables position feedback. The device's PWM input allows precise speed control. The integrated protection features ensure safe operation under stall conditions. The compact MultiPowerSO-30 package fits into tight actuator housings. The device's low ON-resistance minimizes heat generation, extending actuator life.
Recommended
Recommended Products Summary
Engineering reference data for VNH5050A-E β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | VNH5019A-E | BTN8982TA | BTN9970LV |
|---|---|---|---|---|
| Package | MultiPowerSO-30 | MultiPowerSO-30 | MultiPowerSO-30 | MultiPowerSO-30 |
| Brand | STMicroelectronics | STMicroelectronics | Infineon | Infineon |
| Continuous Output Current | 50 A | 30 A | 50 A | 30 A |
| Peak Output Current | 70 A | 50 A | 70 A | 50 A |
| Supply Voltage Range | 5.5 V to 18 V | 5.5 V to 18 V | 5.5 V to 18 V | 5.5 V to 18 V |
| ON-Resistance | 20 mOhm | 25 mOhm | 20 mOhm | 25 mOhm |
| PWM Frequency | Up to 20 kHz | Up to 20 kHz | Up to 20 kHz | Up to 20 kHz |
| Current Sense Ratio | 1/5000 | 1/5000 | 1/5000 | 1/5000 |
Key Differentiators
- Higher continuous current rating (50 A) than VNH5019A-E (vs VNH5019A-E)
- Lower ON-resistance (20 mOhm) than VNH5019A-E (vs VNH5019A-E)
- Same package and pinout as Infineon BTN8982TA (vs BTN8982TA)
Design Notes
The VNH5050A-E has a junction-to-ambient thermal resistance of 35 C/W. At 50 A continuous current and 20 mOhm ON-resistance, power dissipation is approximately 50 W (I^2 * R). This would cause a junction temperature rise of 1750 C, which is impossible. Therefore, the device must be operated at lower currents or with aggressive cooling. For example, at 20 A, dissipation is 8 W, resulting in a 280 C rise, still too high. A heatsink and forced air cooling are essential for any continuous operation above a few amps. The exposed pad must be soldered to a large copper area to minimize thermal resistance.
Place the VNH5050A-E on a PCB with a large copper pour for the exposed pad and VCC/GND pins. Use multiple vias to connect the exposed pad to the ground plane. Keep the motor output traces short and wide to handle high currents. Add a 100 uF electrolytic capacitor and a 0.1 uF ceramic capacitor near the VCC pin to decouple the supply. Ensure the current sense resistor is placed close to the CS pin to minimize noise.
Do not exceed the absolute maximum supply voltage of 18 V. Ensure the PWM input is not left floating; use a pull-down resistor. The current sense output is a current source, so it must be terminated with a resistor to ground to produce a voltage. The diagnostic output is open-drain, so it requires a pull-up resistor. Always connect the exposed pad to ground for proper thermal and electrical performance.
Compliance Information
AEC-Q100 qualified for automotive applications. RoHS and REACH compliant per STMicroelectronics.
