STMicroelectronics

L9822EPD

L9822EPD Description

The L9822EPD from STMicroelectronics is a high-performance 8-channel low-side power driver designed for precision control of relays, solenoids, and other inductive loads. Housed in a PWRSO20 surface-mount package, this IC operates within a 4.5V to 5.5V load voltage range, making it ideal for 5V systems. It features an SPI interface for seamless digital control, enabling efficient communication with microcontrollers. With a low Rds(on) of 550mOhm (typical), it minimizes power dissipation, enhancing thermal performance. The device is ROHS3 compliant and REACH unaffected, ensuring environmental and regulatory compliance. Its current-limiting (fixed) fault protection safeguards against overloads, while the status flag provides real-time diagnostic feedback.

L9822EPD Features

• Output Configuration: Low-side driver with 1:8 input-to-output ratio.
• Interface: SPI-controlled for precise digital management.
• Protection: Integrated current-limiting (fixed) and status flag for fault detection.
• Efficiency: Low 550mOhm Rds(on) reduces heat generation.
• Reliability: MSL 3 (168 hours) moisture sensitivity ensures robustness in humid environments.
• Compliance: ROHS3, REACH, and ECCN EAR99 certified for global use.
• Packaging: Supplied in tubes for secure handling and assembly.

L9822EPD Applications

The L9822EPD excels in automotive, industrial automation, and appliance control systems requiring multi-channel load driving. Its SPI interface makes it suitable for digitally controlled relay matrices or solenoid arrays in factory automation. The current-limiting feature is critical for protecting sensitive loads in automotive ECU designs. Additionally, its low Rds(on) and compact PWRSO20 package are advantageous in space-constrained PCB designs, such as HVAC controls or smart home devices.

Conclusion of L9822EPD

The L9822EPD stands out as a versatile, efficient, and reliable solution for driving multiple low-side loads. Its SPI interface, robust protection features, and low power dissipation make it superior to generic drivers, particularly in automotive and industrial applications. With STMicroelectronics' proven quality, this IC is a top choice for engineers seeking high integration, diagnostic feedback, and compliance with environmental standards.