Overview
The VNHD7012AYTR is a DC motor driver designed for automotive applications, developed by STMicroelectronics. It integrates a fully protected dual high-side driver and drivers for the two external power MOSFETs in low-side configuration. This device utilizes STMicroelectronics' proprietary VIPower technology, which allows for the efficient integration of a true PowerMOSFET with intelligent signal and protection circuitry on the same die. The device is housed in a PowerSSO-36 exposed pad package, optimizing thermal dissipation performance. The input signals INA and INB can directly interface with a microcontroller to select motor direction and brake conditions, while the MultiSense pin provides monitoring of motor current, battery voltage, and chip temperature.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Output Current | 38 A | Per channel |
| VCC Maximum | 38 V | |
| RDS(on) | 12 mΩ (typical) | Per channel |
| Operating Temperature | -40 °C to 150 °C | |
| PWM Frequency | Up to 20 kHz | For external LSDs |
| Package Type | PowerSSO-36 exposed pad |
Key Features
- AEC-Q100 qualified
- Dual fully protected HSD with MultiSense feedback
- Two integrated drivers for the external LSDs
- 3 V CMOS compatible inputs
- Protections:
- Undervoltage shutdown
- Overvoltage clamp
- Thermal shutdown
- Load current limitation
- Self-limiting of fast thermal transients (Power Limitation)
- Cross current protection
- Shoot through protection
- Loss of ground and loss of VCC
- Electrostatic discharge protection
- Drain and source voltage monitoring of the external power MOSFETs
- PWM operation up to 20 kHz for external LSDs
- MultiSense monitoring functions:
- Analog motor current feedback
- Chip temperature monitoring
- Battery voltage monitoring
- MultiSense diagnostic functions:
- Output short to ground detection
- Thermal shutdown indication
- OFF-state open-load detection
- Output short to VCC detection
- Standby mode
- Half bridge operation
- Charge pump output for reverse battery protection
Applications
The VNHD7012AYTR is specifically designed for automotive DC motor driving applications. It is suitable for various automotive systems that require robust and reliable motor control, including but not limited to:
- Electric power steering
- Electric water pumps
- Electric fuel pumps
- Other automotive motor control systems
Q & A
- What is the maximum output current of the VNHD7012AYTR?
The maximum output current is 38 A per channel.
- What is the operating voltage range of the VNHD7012AYTR?
The device operates with a VCC maximum of 38 V.
- What type of package does the VNHD7012AYTR use?
The device is housed in a PowerSSO-36 exposed pad package.
- What are the key protections integrated into the VNHD7012AYTR?
The device includes protections such as undervoltage shutdown, overvoltage clamp, thermal shutdown, load current limitation, and more.
- What is the purpose of the MultiSense pin in the VNHD7012AYTR?
The MultiSense pin allows for monitoring of motor current, battery voltage, and chip temperature.
- Is the VNHD7012AYTR AEC-Q100 qualified?
Yes, the VNHD7012AYTR is AEC-Q100 qualified.
- What is the maximum PWM frequency supported by the VNHD7012AYTR?
The device supports PWM operation up to 20 kHz for external LSDs.
- Does the VNHD7012AYTR have electrostatic discharge protection?
Yes, the device includes electrostatic discharge protection.
- Can the VNHD7012AYTR operate in half bridge mode?
Yes, the device supports half bridge operation.
- What is the purpose of the charge pump output in the VNHD7012AYTR?
The charge pump output is for reverse battery protection.
