Introducing the L9939XPTR from STMicroelectronics

The L9939XPTR is an advanced door actuator driver designed by STMicroelectronics, a leader in semiconductor solutions. This integrated circuit is engineered to provide a highly reliable and efficient solution for automotive door actuation systems. With its robust design and state-of-the-art features, the L9939XPTR is specifically tailored to meet the rigorous demands of the automotive industry.

Key Features

• Powerful Output Stage: The device comes with a high-current output stage capable of driving resistive, inductive, or capacitive loads. This makes it versatile for various types of door actuators.
• Diagnostic Functions: It includes built-in diagnostic capabilities to detect and report faults such as open-load, short-circuit, overtemperature, and undervoltage conditions, enhancing the safety and reliability of the vehicle's door control systems.
• Serial Peripheral Interface (SPI): The inclusion of SPI allows for easy communication with the vehicle's microcontroller, enabling precise control and monitoring of the door actuation processes.
• Protection Features: Integrated protection mechanisms such as overcurrent protection, thermal shutdown, and under-voltage lockout ensure the longevity and stable operation of the device under a wide range of conditions.

Applications

The L9939XPTR is ideal for a variety of applications within the automotive sector, including:

• Power door lock actuators
• Power latches
• Rear compartment lid actuators
• Other automotive applications requiring robust actuator control

Technical Specifications

The device operates over a broad voltage range and is housed in a compact package that is suitable for space-constrained automotive environments. Its technical specifications include:

• Operating voltage range: 6V to 28V
• Output current: up to 1.3A
• Low standby current consumption
• Extended temperature range suitable for automotive environments

The L9939XPTR from STMicroelectronics represents a sophisticated solution for automotive door actuation systems, offering exceptional performance, comprehensive diagnostics, and robust protection features. Its integration into vehicle systems helps ensure a high level of performance, safety, and user convenience.