The L9947S from STMicroelectronics is a state-of-the-art automotive door actuator driver designed to manage the various functions related to vehicle door control. This robust integrated circuit (IC) is specifically engineered to handle the complex requirements of modern automotive door systems, providing an efficient and reliable solution for the automotive industry.

Key Features

• Multiple Output Channels: The L9947S features dual H-bridge drivers capable of controlling up to four different loads, making it versatile for various door-related functions such as mirror adjustment, window lifting, and door locking mechanisms.
• Integrated Diagnostics: With built-in diagnostic capabilities, the L9947S can detect and report faults such as open-load, over-temperature, and short circuits, ensuring high reliability and safety in automotive applications.
• High Voltage Operation: The device operates over a wide voltage range, accommodating the electrical environment of automotive systems and supporting transient overvoltage conditions.
• Low Standby Current: Designed to minimize power consumption, the L9947S ensures low standby current, which is critical for reducing vehicle battery drain when not in operation.

Applications

The L9947S is ideal for a variety of automotive applications, including but not limited to:

• Power window control
• Door lock actuators
• Side mirror positioning
• Headlamp levelers

Technical Specifications

The L9947S is equipped with technical specifications that make it suitable for the demanding conditions of automotive electronics:

• Operating voltage range: 5.5 V to 28 V
• Output current capability: Up to 6.5 A for each H-bridge
• Protection features: Under-voltage shutdown, over-temperature shutdown, and load dump protection
• Packaging: PowerSSO-36 with exposed pad for enhanced thermal dissipation

With its comprehensive feature set and robust design, the STMicroelectronics L9947S is an excellent choice for automotive manufacturers seeking a reliable and efficient door actuator driver solution.