Overview
The VN7140AJTR-E is a single-channel smart high-side driver produced by STMicroelectronics. It is designed for automotive applications and is AEC-Q100 qualified, ensuring high reliability and performance in harsh environments. The device is manufactured using ST's proprietary VIPower M0-7 technology and is available in PowerSSO-16 and SO-8 packages. It features a 3 V and 5 V CMOS-compatible interface, making it suitable for driving 12 V automotive grounded loads. The VN7140AJTR-E integrates advanced protective functions such as load current limitation, overload active management, and overtemperature shutdown, along with sophisticated diagnostic capabilities.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Maximum Switching Energy (single pulse) | 10 | mJ |
| Electrostatic Discharge (JEDEC 22A-114F) | 4000 | V |
| Junction Operating Temperature | -40 to 150 | °C |
| Storage Temperature | -55 to 150 | °C |
| Thermal Resistance Junction-Board (JEDEC JESD 51-8) | 31 (SO-8), 7.9 (PowerSSO-16) | °C/W |
| Supply Current in Standby at VCC = 13 V | 0.5 µA | |
| Input Low Level Voltage | 0.9 | V |
| Input High Level Voltage | 2.1 | V |
| Input Hysteresis Voltage | 0.2 | V |
Key Features
- Single-channel smart high-side driver with MultiSense analog feedback.
- Very low standby current.
- Advanced protective functions including load current limitation, overload active management by power limitation, and overtemperature shutdown with configurable latch-off.
- Dedicated multifunction multiplexed analog output pin for sophisticated diagnostic functions such as high precision proportional load current sense, supply voltage feedback, and chip temperature sense.
- Detection of overload, short circuit to ground, short to VCC, and OFF-state open-load.
- FaultRST pin for unlatching the output in case of fault or disabling the latch-off functionality.
- Sense enable pin for disabling OFF-state diagnosis during low-power mode and external sense resistor sharing.
Applications
- All types of automotive resistive, inductive, and capacitive loads.
- Specially intended for automotive signal lamps (up to R10W or LED Rear Combinations).
- Protected supply for ADAS systems: radars and sensors.
Q & A
- What is the VN7140AJTR-E used for?
The VN7140AJTR-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 VN7140AJTR-E?
The device features load current limitation, overload active management by power limitation, and overtemperature shutdown with configurable latch-off.
- What diagnostic functions does the MultiSense pin provide?
The MultiSense pin delivers high precision proportional load current sense, supply voltage feedback, and chip temperature sense, along with detection of overload and short circuits.
- What is the purpose of the FaultRST pin?
The FaultRST pin is used to unlatch the output in case of a fault or to disable the latch-off functionality.
- What is the significance of the sense enable pin (SEn)?
The sense enable pin allows OFF-state diagnosis to be disabled during the module's low-power mode and enables external sense resistor sharing among similar devices.
- What are the typical applications of the VN7140AJTR-E?
Typical applications include automotive signal lamps, resistive, inductive, and capacitive loads, and protected supply for ADAS systems.
- What is the junction operating temperature range of the VN7140AJTR-E?
The junction operating temperature range is -40°C to 150°C.
- What is the thermal resistance junction-board for the SO-8 package?
The thermal resistance junction-board for the SO-8 package is 31°C/W.
- What is the supply current in standby mode at VCC = 13 V?
The supply current in standby mode at VCC = 13 V is 0.5 µA.
- Is the VN7140AJTR-E AEC-Q100 qualified?
Yes, the VN7140AJTR-E is AEC-Q100 qualified, ensuring high reliability for automotive applications.
