MIC5841BN

Overview

The MIC5841BN is an 8-bit serial-input latched driver utilizing BiCMOS technology. It features eight independent low-side bipolar outputs, each capable of sourcing up to 500mA. The device includes a CMOS shift register, control circuitry, and data latches. It operates with a minimum data-input rate of 3.3 MHz and supports single or split supply configurations. The component is housed in an 18-DIP package.

Feature Summary

• Eight independent low-side bipolar current-sink Darlington output drivers
• Internal transient-protection diodes for output protection
• CMOS, PMOS, NMOS, and TTL compatible logic inputs
• Integrated internal pull-up and pull-down resistors

Applications

• Inductive load control
• Relay-type driver applications
• Peripheral power driver systems

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature range. Ensure compatibility with existing PCB footprints for the 18-DIP configuration. Cross-reference datasheet revisions to validate electrical characteristics and pinout assignments before integration into final designs.

Selection Notes

Select this component when high-current sinking capability is required for multiple peripheral devices. The integrated latch functionality reduces microcontroller I/O pin usage by allowing serial data entry. Consider the 500mA per channel rating for driving heavy loads directly without external transistors.

Part Context

This part belongs to the MIC5841/5842 family of 8-bit serial-input latched drivers. These ICs are designed for robust peripheral control in industrial and consumer electronics. The series utilizes BiCMOS fabrication to combine the speed of CMOS logic with the drive strength of bipolar outputs.

Replacement Considerations

MIC5841YV is listed as a replacement for the obsolete MIC5841BV variant within the same family.