The L9935B from STMicroelectronics is a state-of-the-art dual H-bridge driver designed to handle the demands of modern automotive applications. This robust integrated circuit is engineered to drive inductive loads such as relays, solenoids, and DC and stepping motors, providing the efficiency and reliability required for advanced vehicle systems.

Key Features

• High Voltage Range: The L9935B operates with a supply voltage range that is well-suited for automotive environments, accommodating the fluctuations commonly found in vehicle power systems.
• Dual H-Bridge: The dual H-bridge configuration allows for the independent control of two DC motors or one stepping motor, providing flexibility in application design and simplification of motor control circuits.
• Advanced Protection Systems: To ensure the longevity and safety of the application, the L9935B integrates protection features such as over-temperature shutdown, under-voltage lockout, and non-dissipative overcurrent protection.
• Diagnostic Functions: The device includes diagnostic outputs that provide real-time feedback on the status of the H-bridges, which is essential for fault detection and system maintenance.

Applications

The versatility of the L9935B makes it suitable for a wide array of automotive applications, including but not limited to:

• Body control modules
• Power distribution units
• Window lifters
• Seat positioning motors
• Sunroof motors

Technical Specifications

• Output Current: Up to 5 A per channel
• Operating Voltage: 5.5 V to 28 V
• Output Saturation Voltage: Low, enhancing efficiency
• Package: PowerSSO-24, offering a compact and thermally efficient solution

With its robust design and comprehensive feature set, the L9935B from STMicroelectronics is an ideal choice for designers looking to implement reliable and efficient motor control solutions in their automotive projects.