会社ブログについて Mingjiada Electronics Supply ST VN7050ASTR High Side Driver With MultiSense Analog Feedback

Mingjiada Electronics Supply ST VN7050ASTR High Side Driver With MultiSense Analog Feedback

In the automotive electronics and industrial control sectors, intelligent high-side drivers serve as critical components whose performance and reliability directly impact the safe operation of entire systems.

Shenzhen Mingjiada Electronics Co., Ltd. – a globally renowned supplier of electronic components – has long supplied ST's VN7050ASTR high-side driver. This intelligent power switching device, featuring integrated MultiSense analogue feedback, meets the stringent demands of modern automotive electronics systems for precise control and complex diagnostic capabilities.

01 Product Specifications
The VN7050ASTR is a single-channel intelligent high-side driver from STMicroelectronics, part of the VIPower™ product family, specifically engineered for demanding automotive electronics environments.
Housed in an SO-8 package, this device integrates a suite of advanced protection functions and diagnostic features to meet the stringent reliability and safety requirements of modern automotive electronics systems.
The VN7050ASTR's core advantage lies in its MultiSense analogue feedback capability. This provides a multiplexed analogue output pin capable of real-time transmission of high-precision proportional load current, supply voltage, and chip temperature data.
This comprehensive diagnostic capability enables system designers to monitor load status in real time, detect potential faults proactively, thereby enhancing overall system reliability and reducing maintenance costs.
The VN7050ASTR is designed to drive 12V automotive ground-connected loads and is AEC-Q100 certified, ensuring compliance with the automotive industry's stringent quality standards.

02 Detailed Specifications
As an automotive-grade high-side driver, the VN7050ASTR's key parameters are engineered to withstand demanding automotive environments:
Voltage Range: Operating voltage range of 4V to 28V, with maximum transient supply voltage up to 40V, capable of withstanding common load drops and voltage transients in automotive applications
Output Capability: Maximum output current of 21A with typical current limiting at 30A, capable of driving diverse automotive loads including resistive, inductive, and capacitive loads
On-Resistance: Typical on-resistance of just 50mΩ effectively reduces power loss and thermal dissipation, enhancing system efficiency
Switching Characteristics: Turn-on time of 120μs and turn-off time of 100μs provide rapid response capability
Standby Current: Maximum standby current of just 0.5μA, making it highly suitable for always-on power systems and low-power applications
Operating Temperature: Junction temperature range of -40°C to 150°C, accommodating the wide temperature operating environment of automotive electronic systems

03 Product Feature Advantages
The VN7050ASTR high-side driver incorporates multiple innovative technologies, demonstrating significant product advantages:
MultiSense analogue feedback
The VN7050ASTR's MultiSense diagnostic capability stands as one of its most prominent features. Through a multiplexed analogue output pin, it delivers high-precision proportional load current sensing, supply voltage feedback, and chip temperature sensing.
This comprehensive diagnostic capability enables real-time monitoring of operational status, promptly identifying anomalies such as overloads, short circuits, and open circuits.
Comprehensive Protection Mechanisms
The VN7050ASTR incorporates multiple advanced protection features, including load current limiting, overvoltage clamping, under-voltage lockout (UVLO), and configurable over-temperature shutdown.
These safeguards effectively prevent device damage under abnormal operating conditions, enhancing system durability and reliability. A dedicated FaultRST pin can be used to unlock the output or disable latching functionality during fault events.
Low Power Consumption and Compatibility
The VN7050ASTR features exceptionally low standby current and is compatible with 3.3V and 5V CMOS outputs, enabling straightforward interfacing with modern microcontrollers.
This low-power characteristic makes it particularly suitable for automotive electronic systems that remain constantly powered, such as body control modules and infotainment systems, contributing to reduced static current consumption across the entire vehicle.
Automotive-Grade Reliability
The VN7050ASTR is AEC-Q100 certified, meeting the zero-defect quality requirements for automotive electronics. Its design accounts for specific challenges in automotive environments, including reverse battery conditions, load dump events, and extreme temperature fluctuations.

04 Application Areas
The VN7050ASTR high-side driver finds extensive application across multiple domains, owing to its robust drive capability, comprehensive diagnostic functions, and automotive-grade reliability:
Body Control Modules
Within high-end body control modules, the VN7050ASTR can drive various actuators such as lamps, motors, relays, and heaters.
Its comprehensive diagnostics enable real-time monitoring of each load's status, detecting common faults like bulb burnout or motor lock-up, thereby enhancing system maintainability and reliability.
Infotainment Systems
Within automotive infotainment and instrument cluster systems, the VN7050ASTR manages power supply for units like Digital Radio, delivering efficient power distribution and fault protection.
Its low standby current characteristic is particularly suited for always-on systems, sustaining essential low-power functions after engine shutdown while avoiding excessive battery drain.
Battery Management System
In battery management applications, the VN7050ASTR can be employed in battery management systems for powertrain/hybrid and electric vehicles, enabling precise control and protection of diverse loads.
Its high-precision current mirror enables real-time monitoring of load current per channel, providing critical data for battery state monitoring and energy management.

ADAS Systems
The VN7050ASTR is particularly well-suited for Advanced Driver Assistance Systems (ADAS), delivering protected power to radars and sensors.
Its reliable protection features ensure these safety-critical systems maintain normal operation or perform safe shutdown during electrical anomalies.

The VN7050ASTR high-side driver stands as an ideal choice for automotive electronics and industrial control applications, offering outstanding performance, comprehensive diagnostics, and robust protection capabilities. Whether for body control modules, battery management systems, or ADAS systems, the VN7050ASTR delivers reliable and efficient solutions.

For further product information regarding the VN7050ASTR high-side driver or to enquire about pricing, please visit Mingjiada Electronics' official website (https://www.integrated-ic.com/) for detailed supply information.