STMicroelectronics L9939XP - Dual Solenoid Driver

The L9939XP is a robust, versatile dual solenoid driver integrated circuit (IC) designed by STMicroelectronics, a global leader in semiconductor solutions. This high-quality component is engineered to deliver efficient and reliable control for automotive applications, particularly in the realm of engine and gearbox management systems.

Key Features

• High Output Current: The L9939XP is capable of delivering an output current of up to 0.9A per channel, making it suitable for driving a wide range of solenoids.
• Low Saturation Voltage: The IC features a low ON-state saturation voltage, which reduces power dissipation and improves overall system efficiency.
• Diagnostic Functions: Built-in diagnostic capabilities allow for the detection of open-load, short-circuit, and over-temperature conditions, ensuring reliable operation and simplifying system diagnostics.
• Protection Features: The device includes overcurrent protection, as well as thermal shutdown with restart, to safeguard the IC under extreme operating conditions.
• Independent Channels: Two independent output channels provide flexibility in controlling different solenoids, with each channel programmable via external components.
• Wide Supply Voltage Range: The L9939XP operates over a broad supply voltage range from 5.5V to 28V, accommodating various automotive power systems.

Applications

The L9939XP is particularly well-suited for automotive environments, where it can be used in a variety of applications, including:

• Variable Valve Timing (VVT) solenoid driving
• Automatic Transmission Control
• Engine Management Systems
• Fuel Injection Systems

Quality and Reliability

STMicroelectronics is committed to delivering high-quality products that meet the stringent requirements of the automotive industry. The L9939XP is designed with this commitment in mind, ensuring reliability and performance in the demanding automotive environment. With the L9939XP, manufacturers and designers can trust in a product that delivers both innovation and dependability.