MX879R

Overview

The MX879R is a power driver integrated circuit manufactured by IXYS Integrated Circuits Division. It features an 8-channel output configuration with a 1:1 input-to-output ratio. The device operates on a supply voltage range of 2.7V to 5.5V and supports load voltages between 6V and 60V. It provides a maximum output current of 150mA per channel with a typical on-resistance of 7 ohms. Communication is handled via SPI and parallel interfaces. The component is housed in a 28-VFQFN package with exposed pad, measuring 5x5 mm, and functions within a temperature range of -40°C to 85°C.

Feature Summary

• Provides eight independent high-voltage switch channels for load control applications
• Supports serial peripheral interface (SPI) and parallel data input modes
• Features push-pull output configuration capable of driving loads up to 60 volts
• Integrated thermal protection and over-current limiting mechanisms

Applications

• Industrial automation equipment
• White goods control systems
• Automotive body electronics
• Test and measurement instrumentation

Procurement Notes

Verify the specific suffix designation against official datasheets to confirm pinout compatibility and electrical specifications. Confirm RoHS compliance status and environmental certifications prior to integration. Check for obsolescence notices or lifecycle status updates from the manufacturer. Ensure ESD handling procedures are followed during storage and assembly due to the sensitive semiconductor nature of the component.

Selection Notes

Select this component when multiple high-side or low-side switching channels are required in a compact form factor. Consider the 28-QFN package constraints for PCB layout and thermal dissipation requirements. Evaluate the SPI versus parallel interface needs based on microprocessor GPIO availability. Ensure the 60V load voltage rating aligns with the target application's maximum operating conditions.

Part Context

The MX879R belongs to the MX879 family of multi-channel power drivers designed for general-purpose switching tasks. It serves as a bridge between low-voltage logic controllers and higher-voltage loads. The series is characterized by its ability to manage multiple outputs through efficient serial communication protocols, reducing pin count requirements on the host controller.

Replacement Considerations

MX879RCL