MIC59P50BV

Overview

The MIC59P50BV is a high-voltage, high-current integrated circuit designed as an eight-bit parallel-input protected latched driver. It operates with an 80V rating and delivers up to 500mA of output current per channel. The device integrates eight CMOS data latches paired with bipolar Darlington transistor drivers for each latch. Common control functions include CLEAR, STROBE, and OUTPUT ENABLE. Built-in protection features encompass thermal shutdown, under-voltage lockout, overcurrent protection, and transient suppression. The component is housed in a 28-pin PLCC package.

Feature Summary

• Integrates eight independent channels with CMOS latches and bipolar Darlington drivers
• Provides comprehensive protection against thermal overload, under-voltage conditions, and overcurrent events
• Supports split supply operation for flexible system integration

Applications

• High-voltage peripheral interface driving
• Industrial load switching applications
• Automotive power distribution systems

Procurement Notes

Verify the specific suffix (e.g., -TR) for reel packaging requirements if applicable. Confirm RoHS compliance status as some variants may be non-compliant. Ensure the 28-PLCC package dimensions match your PCB footprint design. Check for lead-free soldering compatibility during assembly processes.

Selection Notes

Select this component when high voltage tolerance and individual channel latching are required. The bipolar Darlington structure supports higher current loads compared to pure CMOS alternatives. Consider the 80V maximum rating for system voltage headroom. Evaluate the need for parallel input data storage before choosing this latched architecture.

Part Context

This part belongs to the MIC59P50 series of latched drivers manufactured by Microchip Technology, formerly Micrel. It serves as a robust solution for driving high-power peripherals where data retention and fault protection are critical. The series offers various package options including SOIC and PLCC configurations.

Replacement Considerations

The MIC59P50BWM is a pin-compatible alternative available in a SOIC-24 package. Verify package type differences between PLCC and SOIC formats before substitution.