MIC5891BN

Overview

The MIC5891BN is an 8-bit serial-input latched source driver manufactured by Microchip Technology. It integrates eight CMOS data latches and control circuitry for a common STROBE input, enabling parallel output from a serial interface. The device features high-voltage and high-current sourcing capabilities, with a maximum output current of 500 mA per channel. It operates within a temperature range of -40°C to +85°C and is housed in a 16-pin DIP package.

Feature Summary

• Integrates eight CMOS data latches for serial-to-parallel conversion
• Provides high-current sourcing capability up to 500 mA per channel
• Utilizes a common STROBE input for latch control

Applications

• High-voltage LED driving systems
• Industrial control panel interfaces
• Display driver circuits requiring latched outputs

Procurement Notes

Verify the manufacturer designation as Microchip Technology or Micrel Semiconductor, as both entities are associated with this part number. Confirm the package type is 16-DIP (0.300 inch) and check for any specific ordering suffixes that may indicate temperature grade or packaging variations. Ensure the datasheet matches the 8-bit serial-input specification.

Selection Notes

Select this component when a design requires serial input control with high-current sourcing outputs. The latched architecture ensures stable output states without continuous clocking. Consider the 500 mA per channel limit and the 16-pin DIP form factor for board layout constraints. Verify compatibility with the system's voltage levels and thermal requirements.

Part Context

The MIC5891 belongs to a family of serial-input latched drivers designed for robust industrial applications. It serves as a bridge between low-power digital logic and higher-power loads. The device simplifies interface design by reducing pin count compared to parallel drivers while maintaining high drive strength.

Replacement Considerations

Direct substitutes include other 8-bit serial latched drivers from Microchip or compatible manufacturers. Verify pinout compatibility and electrical specifications such as output current and voltage ratings before substitution.