VNHD7012AYTR - 28V, 12A H-Bridge Motor Driver | STMicroelectronics
MPN： VNHD7012AYTR ✓ 啟用中VNHD7012AYTR 概覽
An H-bridge motor driver is a power management IC that controls the direction and speed of a DC motor by selectively turning on four transistors in an H-shaped configuration. It is a type of motor driver, which falls under the broader category of power management ICs. The VNHD7012AYTR integrates the power stage, gate drivers, and protection features, simplifying the design of bidirectional motor control systems.
Key features include a low ON-resistance of 25 mOhm per channel, which minimizes power losses and heat generation. The device provides PWM control up to 20 kHz, enabling precise speed regulation. It includes comprehensive protection features such as undervoltage lockout, overvoltage clamp, overcurrent protection, and thermal shutdown, ensuring robust operation in harsh environments. The logic inputs are 3.3V and 5V compatible, allowing direct interface with microcontrollers.
The VNHD7012AYTR uses a high-side and low-side driver architecture with integrated bootstrap diodes for the high-side gate drive. It features a current sense output that provides a proportional current signal for closed-loop control. The device is AEC-Q100 qualified, making it suitable for automotive applications. Its PowerSSO-36 package offers a thermal resistance of 30 C/W, allowing operation at high currents with proper PCB copper area.
Typical applications include automotive power windows, sunroofs, seat adjustment, and industrial DC motor control. The device's wide voltage range and high current capability make it ideal for driving brushed DC motors in body control modules and industrial actuators.
When designing with this device, ensure adequate PCB copper area for thermal management, especially at high output currents. The current sense pin should be connected to a low-value sense resistor for accurate current monitoring. Proper decoupling capacitors on the supply pins are essential to minimize voltage transients during switching.
直接替換替代品，適用於 VNHD7012AYTR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： VNHD7012AYTR （相同外形與佔位） — 差異在於 Package, Supply Voltage Range, Operating Temperature Range, Protection Features.
VNHD7008AYTR
✅ 直接替換📋 參考替代品（不在目錄中）
VNHD7012AY
✅ 直接替換聯絡詢價
查看資料表 →LTC2944-1
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
VNHD7012AYTR 最大額定值與電氣特性
| Motor Type | DC Brush |
| 輸出數量 | 1 |
| Output Current | 12 A |
| Supply Voltage Range | 4 V to 28 V |
| ON-Resistance (per channel) | 25 mOhm |
| PWM Frequency | 20 kHz |
| Logic Input Compatibility | 3.3V and 5V |
| 封裝 | PowerSSO-36 |
| 安裝類型 | Surface Mount |
| Thermal Resistance (theta_JA) | 30 C/W |
| 工作溫度範圍 | -40C to +150C |
| AEC-Q100 Qualified | Yes |
| RoHS Compliant | Yes |
| Undervoltage Lockout | Yes |
| 過電流保護 | Yes |
| 過熱關機 | Yes |
VNHD7012AYTR 腳位配置
| 腳位 1 | OUT1 — High-side output 1 |
| 腳位 2 | OUT2 — High-side output 2 |
| 腳位 3 | VS — Supply voltage |
| 腳位 4 | GND — Ground |
| 腳位 5 | IN1 — Logic input 1 |
| 腳位 6 | IN2 — Logic input 2 |
| 腳位 7 | PWM — PWM input |
| 腳位 8 | CS — Current sense output |
| 腳位 9 | EN — Enable input |
| 腳位 10 | GND — Ground |
| 腳位 11 | OUT3 — Low-side output 3 |
| 腳位 12 | OUT4 — Low-side output 4 |
典型應用
VNHD7012AYTR 適用於 6 應用s: Automotive Power Windows, Automotive Sunroof Control, Seat Adjustment Systems, Industrial DC Motor Control, Robotics and Actuators, Power Tools.
Automotive Power Windows
The VNHD7012AYTR is ideal for automotive power window systems, providing bidirectional control of DC motors with high current capability up to 12A. Its wide supply voltage range (4V to 28V) accommodates the varying battery voltage in vehicles, while the integrated protection features (overcurrent, thermal shutdown) ensure reliable operation in harsh automotive environments. The low ON-resistance (25 mOhm) minimizes power dissipation, reducing heat buildup in the cabin. PWM control up to 20 kHz allows smooth and quiet window movement, enhancing user comfort. The AEC-Q100 qualification guarantees reliability under extreme temperature and vibration conditions. In a typical power window module, the VNHD7012AYTR is placed between the body control module (BCM) and the window motor, with the current sense output enabling stall detection for anti-pinch functionality. Proper PCB layout with adequate copper area is essential to manage the heat generated during prolonged operation.
推薦
Automotive Sunroof Control
The VNHD7012AYTR is well-suited for automotive sunroof control, where bidirectional DC motor driving is required with high reliability. The device's 12A output current can handle the inrush current of sunroof motors, while the 4V to 28V supply range covers the full battery voltage spectrum. The integrated current sense output allows precise monitoring of motor current, enabling anti-pinch detection to prevent injury. The low ON-resistance (25 mOhm) reduces power loss, improving energy efficiency. The PowerSSO-36 package with exposed pad ensures effective heat dissipation, crucial for continuous operation in confined spaces. The device's protection features, including undervoltage lockout and thermal shutdown, safeguard the system during voltage dips or overloads. In a sunroof control unit, the VNHD7012AYTR interfaces directly with a microcontroller, which generates PWM signals for speed control. The AEC-Q100 qualification ensures long-term reliability in automotive environments.
推薦
Seat Adjustment Systems
The VNHD7012AYTR is an excellent choice for automotive seat adjustment systems, which require precise bidirectional control of multiple DC motors. With a 12A output current, it can drive seat motors for forward/backward, recline, and lumbar support adjustments. The wide supply voltage range (4V to 28V) ensures operation during engine start-stop events. The device's low ON-resistance (25 mOhm) minimizes power dissipation, reducing heat in the seat module. PWM control up to 20 kHz enables smooth and quiet motor operation, enhancing passenger comfort. The integrated current sense output allows the system to detect obstructions and stop the motor, improving safety. The AEC-Q100 qualification ensures reliability in the demanding automotive environment. In a seat control module, the VNHD7012AYTR is controlled by a microcontroller, which sends PWM signals and monitors the current sense output for feedback. Proper thermal management is essential, and the PowerSSO-36 package with exposed pad facilitates heat transfer to the PCB.
推薦
Industrial DC Motor Control
The VNHD7012AYTR is suitable for industrial DC motor control applications, such as conveyor belts, pumps, and actuators. Its 12A output current and 4V to 28V supply range make it versatile for various motor sizes. The low ON-resistance (25 mOhm) improves efficiency, reducing energy costs in continuous operation. PWM control up to 20 kHz allows precise speed regulation, essential for process control. The device's protection features, including overcurrent and thermal shutdown, prevent damage in industrial environments with potential overloads. The current sense output enables closed-loop control for accurate positioning. The PowerSSO-36 package with exposed pad ensures reliable thermal performance, even in high-ambient-temperature settings. In an industrial motor controller, the VNHD7012AYTR is typically driven by a PLC or microcontroller, with PWM signals for speed control and the current sense output for monitoring. The AEC-Q100 qualification, while automotive-focused, also indicates high reliability suitable for industrial use.
推薦
Robotics and Actuators
The VNHD7012AYTR is ideal for robotics and actuator applications, where precise bidirectional motor control is required. Its 12A output current can drive small to medium DC motors used in robotic arms, grippers, and mobile robots. The wide supply voltage range (4V to 28V) allows operation from various battery configurations. The low ON-resistance (25 mOhm) maximizes battery life by reducing power losses. PWM control up to 20 kHz enables smooth and accurate speed and position control. The integrated current sense output provides feedback for torque control and obstacle detection. The device's protection features, including overcurrent and thermal shutdown, ensure safe operation in dynamic environments. The PowerSSO-36 package with exposed pad facilitates heat dissipation, crucial for continuous operation. In a robotic system, the VNHD7012AYTR is controlled by a microcontroller or Raspberry Pi, which generates PWM signals and reads the current sense output for closed-loop control.
推薦
Power Tools
The VNHD7012AYTR is well-suited for power tools, such as drills, saws, and grinders, which require high current and robust motor control. Its 12A output current can handle the high inrush currents of power tool motors. The 4V to 28V supply range supports both corded and cordless tools. The low ON-resistance (25 mOhm) minimizes power loss, improving battery life in cordless tools. PWM control up to 20 kHz allows variable speed control, enhancing user experience. The device's protection features, including overcurrent and thermal shutdown, protect the tool from damage during overloads. The current sense output enables stall detection, preventing motor burnout. The PowerSSO-36 package with exposed pad ensures efficient heat dissipation, crucial for continuous operation. In a power tool, the VNHD7012AYTR is controlled by a trigger switch and a microcontroller, which adjusts PWM duty cycle based on user input.
推薦
推薦產品摘要
工程參考資料，適用於 VNHD7012AYTR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | VNHD7008AYTR | VNHD7012AY | LTC2944-1 | L6470 |
|---|---|---|---|---|---|
| Package | PowerSSO-36 | PowerSSO-36 | PowerSSO-36 | PowerSSO-36 | PowerSSO-36 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | Analog Devices | STMicroelectronics |
主要差異化特點
- Higher output current (12A) compared to VNHD7008AYTR (對比VNHD7008AYTR)
- AEC-Q100 qualified for automotive use (對比LTC2944-1)
- Low ON-resistance (25 mOhm) for high efficiency (對比L6470)
設計說明
The VNHD7012AYTR can dissipate significant power at high currents. With a thermal resistance of 30 C/W, a 12A load at 28V could generate substantial heat. Ensure adequate PCB copper area, preferably with a thermal pad connected to a large ground plane, to keep the junction temperature within limits. Consider using thermal vias to enhance heat transfer to inner layers.
Place decoupling capacitors (e.g., 100nF and 10uF) close to the VS and GND pins to minimize voltage transients during switching. The current sense pin should be connected to a low-value sense resistor (e.g., 0.1 ohm) with Kelvin connections for accurate current monitoring. Keep the PWM and logic input traces short and away from high-current paths to reduce noise.
Do not exceed the absolute maximum supply voltage of 28V. Ensure the motor's back-EMF does not cause the supply voltage to spike above this limit; use appropriate snubber circuits or TVS diodes. Also, avoid enabling the device without a motor connected, as this may trigger overcurrent protection. Always verify the logic input levels are within the specified range to prevent undefined states.
合規資訊
AEC-Q100 qualified per datasheet. RoHS compliance indicated by STMicroelectronics. Other compliance details not specified in provided data.
