Overview
The VN7140AJTR, produced by STMicroelectronics, is a single-channel smart high-side driver designed for automotive applications. It is manufactured using ST's proprietary VIPower M0-7 technology and is available in PowerSSO-16 and SO-8 packages. This device is engineered to drive 12 V automotive grounded loads through a 3 V and 5 V CMOS-compatible interface, providing advanced protection and diagnostic functions. The VN7140AJTR is AEC-Q100 qualified, ensuring its reliability and performance in harsh automotive environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 4 to 28 | V |
| Typical On-State Resistance (per Channel) | 140 | mΩ |
| Current Limitation (Typical) | 12 | A |
| Standby Current (Maximum) | 0.5 | µA |
| Junction Operating Temperature | -40 to 150 | °C |
| Storage Temperature | -55 to 150 | °C |
| Electrostatic Discharge (JEDEC 22A-114F) | 4000 | V |
| Thermal Resistance Junction-Board (JEDEC JESD 51-8) | 7.9 | °C/W |
| Thermal Resistance Junction-Ambient (JEDEC JESD 51-2) | 61 | °C/W |
Key Features
- MultiSense Analog Feedback: Provides high precision proportional load current sense, supply voltage feedback, and chip temperature sense.
- Advanced Protective Functions: Includes load current limitation, overload active management by power limitation, and overtemperature shutdown with configurable latch-off.
- Low Standby Current: Very low standby current to minimize power consumption.
- CMOS-Compatible Interface: Compatible with 3 V and 5 V CMOS outputs.
- Fault Detection and Reset: A FaultRST pin to unlatch the output in case of fault or disable the latch-off functionality.
- Protection Against Various Faults: Includes protections against reverse battery, electrostatic discharge, overload, short to ground, short to VCC, and OFF-state open-load.
Applications
- Automotive Signal Lamps: Specially intended for automotive signal lamps (up to R10W or LED Rear Combinations).
- Automotive Resistive, Inductive, and Capacitive Loads: Suitable for all types of automotive loads.
- Protected Supply for ADAS Systems: Protected supply for Advanced Driver Assistance Systems (ADAS) such as radars and sensors.
Q & A
- What is the operating voltage range of the VN7140AJTR?
The operating voltage range is from 4 V to 28 V.
- What is the typical on-state resistance of the VN7140AJTR?
The typical on-state resistance is 140 mΩ.
- What are the key protective functions of the VN7140AJTR?
The key protective functions include load current limitation, overload active management by power limitation, and overtemperature shutdown with configurable latch-off.
- How does the MultiSense analog feedback work?
The MultiSense analog feedback provides high precision proportional load current sense, supply voltage feedback, and chip temperature sense.
- What is the purpose of the FaultRST pin?
The FaultRST pin is used to unlatch the output in case of fault or to disable the latch-off functionality.
- What types of automotive loads is the VN7140AJTR suitable for?
The VN7140AJTR is suitable for all types of automotive resistive, inductive, and capacitive loads.
- Is the VN7140AJTR AEC-Q100 qualified?
Yes, the VN7140AJTR is AEC-Q100 qualified.
- What is the maximum standby current of the VN7140AJTR?
The maximum standby current is 0.5 µA.
- What are the package options for the VN7140AJTR?
The VN7140AJTR is available in PowerSSO-16 and SO-8 packages.
- What is the junction operating temperature range of the VN7140AJTR?
The junction operating temperature range is from -40°C to 150°C.
