VNH5050A-E - 50A Automotive H-Bridge Driver | STMicroelectronics
N.º da peça: VNH5050A-E ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 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 |
VNH5050A-E Visão geral
An H-bridge motor driver is a power integrated circuit that controls the direction and speed of a DC motor by selectively switching four transistors in an H-shaped configuration. It is a type of motor driver IC, which falls under the broader category of power management ICs. The VNH5050A-E integrates the power stage, gate drivers, and protection circuitry in a single package, simplifying PCB design and reducing component count.
Key features include a low ON-resistance of 20 mOhm per switch, which minimizes power dissipation and improves efficiency. The device provides a 5 V logic supply output for external circuitry, and includes a current sense output proportional to the motor current, enabling closed-loop control. It also features a diagnostic output for fault reporting, and a PWM input for speed control up to 20 kHz.
The VNH5050A-E uses STMicroelectronics' VIPower M0 technology, which integrates a double-diffused MOS (DMOS) power stage with CMOS control logic. This architecture provides robust switching performance and high reliability under harsh automotive conditions. The device includes comprehensive protection features such as undervoltage lockout, overvoltage clamp, thermal shutdown, and load current limitation.
Typical applications include automotive power windows, sunroofs, seat adjusters, and DC motor control in industrial automation. The high current capability and wide supply range make it suitable for driving brushed DC motors in body control modules and actuator systems.
When designing with this device, ensure adequate PCB copper area for heat dissipation, as the thermal resistance (junction-to-ambient) is 35 C/W. The exposed pad must be soldered to a large copper pour to maintain junction temperature below the maximum rating of 150 C.
Alternativas drop-in para VNH5050A-E — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com VNH5050A-E (mesmo formato e footprint) — diferindo em Package, Protection Features, Technology.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
VNH5050ATR-E
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
VNH5019A-E
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
VNH7070A-E
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
BTN8982TA
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MC33887
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
VNH5050A-E Classificações máximas e características elétricas
| 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 |
| Logic Supply Output | 5 V |
| PWM Frequency | Up to 20 kHz |
| Current Sense Output | Proportional to motor current |
| Diagnostic Output | Yes |
| Encapsulamento | MultiPowerSO-30 (12-pin) |
| Tipo de montagem | Surface Mount |
| Resistência térmica, junção-ambiente | 35 C/W |
| Maximum Junction Temperature | 150 C |
| Technology | VIPower M0 |
| Protection Features | Undervoltage lockout, overvoltage clamp, thermal shutdown, load current limitation |
| Automotive Grade | Yes (AEC-Q100) |
| Status RoHS | Compliant |
Configuração de pinos do VNH5050A-E
| Pino 1 | OUT1 — High-side output 1 |
| Pino 2 | OUT2 — High-side output 2 |
| Pino 3 | GND — Ground |
| Pino 4 | GND — Ground |
| Pino 5 | IN1 — Input 1 for direction control |
| Pino 6 | IN2 — Input 2 for direction control |
| Pino 7 | PWM — PWM input for speed control |
| Pino 8 | DIAG — Diagnostic output |
| Pino 9 | CS — Current sense output |
| Pino 10 | VCC — Logic supply voltage |
| Pino 11 | VS — Motor supply voltage |
| Pino 12 | VS — Motor supply voltage |
Aplicações típicas
VNH5050A-E é adequado para 6 aplicaçãos: Automotive Power Windows, Sunroof Control, Seat Adjusters, Industrial DC Motor Control, Automotive Actuators, Robotics.
Automotive Power Windows
The VNH5050A-E is ideal for automotive power window systems, where it drives the DC motor that raises and lowers the window. Its 50 A continuous current capability easily handles the inrush current of the window motor, while the integrated protection features (undervoltage lockout, overvoltage clamp, thermal shutdown) ensure reliable operation in the harsh automotive environment. The PWM input allows smooth speed control, and the current sense output enables stall detection to prevent motor damage. The device's AEC-Q100 qualification guarantees performance across the automotive temperature range (-40°C to 150°C). In a typical power window module, the VNH5050A-E is placed between the body control module (BCM) and the window motor, with the BCM providing PWM and direction signals. The current sense output is fed back to the BCM for anti-pinch detection, enhancing passenger safety. The low ON-resistance of 20 mOhm minimizes power loss, reducing heat generation in the confined door cavity. Designers should ensure adequate PCB copper area for heat dissipation, as the thermal resistance is 35 C/W.
Recomendado
Sunroof Control
The VNH5050A-E is well-suited for sunroof control systems, where it drives the DC motor that opens and closes the sunroof. The device's high current capability (50 A continuous, 70 A peak) ensures it can handle the motor's starting current, while the integrated current sense output allows precise control of the sunroof position and speed. The diagnostic output provides fault reporting, enabling the system to detect obstructions and stop the motor to prevent injury. The wide supply voltage range (5.5 V to 18 V) accommodates voltage fluctuations in the automotive electrical system. In a typical sunroof module, the VNH5050A-E is controlled by a microcontroller that sends PWM and direction signals. The current sense output is used for anti-pinch detection, and the diagnostic output is monitored for fault conditions. The device's thermal shutdown protection prevents damage in case of prolonged operation. Designers should consider the thermal performance of the MultiPowerSO-30 package and ensure proper heat sinking through the exposed pad.
Recomendado
Seat Adjusters
The VNH5050A-E is an excellent choice for automotive seat adjusters, which require precise and reliable motor control. The device's 50 A continuous current capability easily drives the seat adjustment motor, while the PWM input allows smooth and controlled movement. The current sense output enables the system to detect when the seat reaches its end stop, preventing motor stall and damage. The integrated protection features, including thermal shutdown and load current limitation, ensure safe operation under fault conditions. The device's AEC-Q100 qualification makes it suitable for the demanding automotive environment. In a typical seat adjuster module, the VNH5050A-E is controlled by a microcontroller that provides PWM and direction signals. The current sense output is used for position feedback and stall detection, and the diagnostic output is monitored for fault conditions. The low ON-resistance of 20 mOhm minimizes power dissipation, reducing heat buildup in the seat assembly. Designers should ensure adequate PCB copper area for heat dissipation.
Recomendado
Industrial DC Motor Control
The VNH5050A-E is suitable for industrial DC motor control applications, such as conveyor belts, pumps, and actuators. Its high current capability (50 A continuous) and wide supply voltage range (5.5 V to 18 V) make it versatile for various industrial loads. The PWM input allows efficient speed control, and the current sense output enables closed-loop control for precise positioning. The device's protection features, including undervoltage lockout and thermal shutdown, ensure reliable operation in industrial environments. In a typical industrial motor control system, the VNH5050A-E is driven by a PLC or microcontroller that sends PWM and direction signals. The current sense output is used for load monitoring and fault detection, and the diagnostic output provides status information. The device's low ON-resistance minimizes power loss, improving system efficiency. Designers should consider the thermal requirements and provide adequate heat sinking through the exposed pad.
Recomendado
Automotive Actuators
The VNH5050A-E is ideal for driving automotive actuators, such as throttle control, exhaust gas recirculation (EGR) valves, and turbocharger wastegate actuators. These applications require precise and reliable motor control, which the VNH5050A-E provides through its PWM input and current sense output. The device's high current capability and protection features ensure reliable operation in the harsh automotive environment. The diagnostic output allows the ECU to monitor the actuator's health and detect faults. In a typical actuator system, the VNH5050A-E is controlled by an ECU that sends PWM and direction signals. The current sense output is used for position feedback and stall detection, and the diagnostic output is monitored for fault conditions. The device's AEC-Q100 qualification ensures performance across the automotive temperature range. Designers should ensure adequate PCB copper area for heat dissipation.
Recomendado
Robotics
The VNH5050A-E is suitable for robotics applications, where it drives DC motors for joint actuation and locomotion. Its high current capability (50 A continuous) and PWM input allow precise speed and torque control. The current sense output enables closed-loop control for accurate positioning, and the diagnostic output provides fault detection. The device's protection features, including thermal shutdown and load current limitation, ensure safe operation in robotic systems. In a typical robot, the VNH5050A-E is controlled by a microcontroller or embedded computer that sends PWM and direction signals. The current sense output is used for torque control and stall detection, and the diagnostic output is monitored for fault conditions. The device's low ON-resistance minimizes power loss, improving battery life in mobile robots. Designers should consider the thermal requirements and provide adequate heat sinking.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para VNH5050A-E — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | VNH5050ATR-E | VNH5019A-E | VNH7070A-E | BTN8982TA | MC33887 |
|---|---|---|---|---|---|---|
| Package | MultiPowerSO-30 | MultiPowerSO-30 | MultiPowerSO-30 | MultiPowerSO-30 | MultiPowerSO-30 | MultiPowerSO-30 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | Infineon | NXP Semiconductors |
| Continuous Output Current | 50 A | 50 A | 30 A | 30 A | 50 A | 5 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 | 5.5 V to 18 V | 5.5 V to 28 V |
| ON-Resistance per Switch | 20 mOhm | 20 mOhm | 25 mOhm | 25 mOhm | 20 mOhm | 100 mOhm |
| PWM Frequency | Up to 20 kHz | Up to 20 kHz | Up to 20 kHz | Up to 20 kHz | Up to 20 kHz | Up to 10 kHz |
| Current Sense Output | Yes | Yes | Yes | Yes | Yes | Yes |
| Diagnostic Output | Yes | Yes | Yes | Yes | Yes | Yes |
Principais diferenciais
- Higher continuous current rating (50 A) compared to VNH5019A-E (30 A) (vs VNH5019A-E)
- Lower ON-resistance (20 mOhm) compared to VNH5019A-E (25 mOhm) (vs VNH5019A-E)
- Same package and pinout as VNH5019A-E, allowing easy upgrade (vs VNH5019A-E)
Notas de projeto
The VNH5050A-E has a thermal resistance (junction-to-ambient) of 35 C/W. At a continuous current of 50 A and a supply voltage of 13.5 V, the power dissipation can be significant. For example, with a motor load of 0.5 ohm, the power dissipation is approximately 50 W, leading to a junction temperature rise of 1750 C above ambient, which is far beyond the maximum rating. Therefore, it is critical to provide adequate heat sinking, such as a large copper pour on the PCB and possibly an external heatsink. The exposed pad must be soldered to the copper pour to ensure efficient heat transfer. In practice, the continuous current is often limited by thermal constraints rather than the electrical rating.
For optimal thermal and electrical performance, place the VNH5050A-E on a PCB with a large copper area connected to the exposed pad. Use multiple vias to connect the exposed pad to inner and bottom layers for heat spreading. Keep the high-current paths (VS, OUT1, OUT2) as short and wide as possible to minimize inductance and resistance. Place decoupling capacitors close to the VS and VCC pins to suppress voltage transients. The current sense output (CS) should be routed with a Kelvin connection to avoid voltage drops in the ground path.
A common pitfall is operating the VNH5050A-E without proper thermal management, leading to thermal shutdown. Ensure the junction temperature stays below 150 C by providing adequate heat sinking. Another pitfall is exceeding the maximum supply voltage of 18 V, which can cause overvoltage clamp activation and potential damage. Also, avoid floating the input pins (IN1, IN2, PWM) as this can cause unpredictable behavior; use pull-up or pull-down resistors as needed. Finally, ensure the current sense output is not overloaded, as it is designed for low-current sensing.
Informações de conformidade
AEC-Q100 qualified for automotive applications. RoHS compliant per STMicroelectronics product page.
