MIC59P50BN

Overview

The MIC59P50BN is an 8-bit parallel-input protected latched driver manufactured by Microchip Technology. It integrates eight CMOS data latches, bipolar Darlington transistor drivers, and control circuitry for common CLEAR, STROBE, and OUTPUT ENABLE functions. The device supports high-voltage loads up to 80V and delivers a maximum output current of 500mA per channel. It operates within a supply voltage range of 5V to 12V and features built-in protection against transient events, overcurrent, thermal issues, and undervoltage conditions.

Feature Summary

• Integrates eight CMOS data latches with bipolar Darlington transistor drivers for robust load driving capabilities
• Includes comprehensive protection circuitry for transient, overcurrent, thermal, and undervoltage scenarios
• Supports split supply operation and provides status flag functionality for system monitoring

Applications

• Wireless and networking cards
• Low voltage I/O system power management
• Hard disk drive interface circuits
• Solid-state drive control systems
• Hot swap applications

Procurement Notes

Verify the specific suffix BN indicates the DIP-24 package variant when sourcing components. Confirm RoHS compliance status as some listings indicate non-compliance. Ensure the supplier documentation matches the Microchip Technology datasheet specifications for voltage and current ratings. Cross-reference the part number with official distributor catalogs to avoid counterfeit or obsolete stock.

Selection Notes

Select this component for applications requiring high-current switching with integrated latch memory. The 80V rating suits inductive loads, while the 500mA output handles moderate power requirements. Consider the parallel input interface for direct microcontroller connection without additional shift registers. Evaluate the operating temperature range of -40°C to 85°C for environmental suitability.

Part Context

This part belongs to the MIC59P50 series of parallel-input latched drivers. It shares architectural similarities with the MIC5801 but offers enhanced protection features. The series is designed for reliable peripheral driving in industrial and consumer electronics where signal integrity and load protection are critical.

Replacement Considerations

Direct substitutes include other 8-bit latched drivers from Microchip such as the MIC5801, provided pin compatibility and electrical ratings align. Verify that alternative parts support the same 80V load voltage and 500mA current capacity. Check package type differences between SOIC and DIP variants if mechanical constraints exist.