Overview
The VN7040AS-E, produced by STMicroelectronics, is a single-channel smart high-side driver designed for automotive applications. It features MultiSense analog feedback and is manufactured using ST's proprietary VIPower M0-7 technology. This device is housed in either a PowerSSO-16 or SO-8 package. It is AEC-Q100 qualified, ensuring reliability and performance in automotive environments. The VN7040AS-E is capable of driving 12 V automotive grounded loads through a 3 V and 5 V CMOS-compatible interface, providing advanced protection and diagnostic functions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Supply (VCC) | 7 to 28 | V |
| Current - Output (Max) | 24 | A |
| Rds On (Typ) | 40 | mΩ |
| Junction Operating Temperature | -40 to 150 | °C |
| Storage Temperature | -55 to 150 | °C |
| Electrostatic Discharge (JEDEC 22A-114F) | 4000 | V |
| Supply Current in Standby | 0.5 | µA |
| Short Circuit Current | 24 to 48 | A |
| Shutdown Temperature | 150 to 200 | °C |
Key Features
- MultiSense analog feedback for load current, supply voltage, and chip temperature sensing.
- Advanced protective functions including load current limitation, overload active management, and overtemperature shutdown with configurable latch-off.
- FaultRST pin for unlatching the output in case of fault or disabling the latch-off functionality.
- Low standby current and reverse battery protection with external components.
- Electrostatic discharge protection.
- 3 V and 5 V CMOS-compatible interface.
Applications
- All types of automotive resistive, inductive, and capacitive loads.
- Specially intended for automotive turn indicators (up to P27W or SAE1156 and R5W paralleled or LED rear combinations).
- Protected supply for ADAS systems: radars and sensors.
Q & A
- What is the VN7040AS-E used for?
The VN7040AS-E is used as a single-channel smart high-side driver for automotive applications, particularly for driving 12 V automotive grounded loads.
- What are the key protective features of the VN7040AS-E?
The device includes load current limitation, overload active management, overtemperature shutdown with configurable latch-off, and electrostatic discharge protection.
- What is the MultiSense feature in the VN7040AS-E?
The MultiSense feature provides analog feedback for load current, supply voltage, and chip temperature sensing through a multiplexed analog output pin.
- What is the typical Rds On value for the VN7040AS-E?
The typical Rds On value is 40 mΩ.
- What is the maximum output current of the VN7040AS-E?
The maximum output current is 24 A.
- What are the operating temperature ranges for the VN7040AS-E?
The junction operating temperature range is -40 to 150 °C, and the storage temperature range is -55 to 150 °C.
- How does the FaultRST pin function?
The FaultRST pin unlatches the output in case of a fault and can set the outputs in auto-restart mode if kept low.
- What types of loads can the VN7040AS-E drive?
The device can drive resistive, inductive, and capacitive loads in automotive applications.
- Is the VN7040AS-E AEC-Q100 qualified?
Yes, the VN7040AS-E is AEC-Q100 qualified, ensuring its reliability in automotive environments.
- What packages is the VN7040AS-E available in?
The device is available in PowerSSO-16 and SO-8 packages.
