MAX6921AWI/V+

Display Drivers Overview

The MAX6921AWI/V+ is a vacuum fluorescent display (VFD) driver manufactured by Analog Devices Inc./Maxim Integrated. It features a serial interface and provides twenty outputs capable of driving VFD tubes with up to 76V anode voltage. The device operates on a single supply voltage ranging from 3V to 5.5V, consuming a typical operating current of 1.65mA. It supports clock frequencies up to 5MHz and delivers a maximum output current of 75mA per channel. The component is housed in a 28-pin SOIC-Wide package and functions within a temperature range of -40°C to +125°C.

Display Drivers Feature Summary

• Integrates twenty high-voltage outputs for direct VFD tube control
• Utilizes a simple serial interface for data and command input
• Supports wide operating temperature ranges for industrial environments

Display Drivers Applications

• Vacuum fluorescent display panel drivers
• Industrial control system interfaces
• Automotive instrument clusters

Display Drivers Procurement Notes

Verify the specific suffix 'V+' against the manufacturer's official documentation to confirm compliance with lead-free and RoHS directives. Ensure the ordering part number matches the exact package type and temperature grade required for your design. Cross-reference the datasheet revision date to confirm the availability of the latest electrical characteristics and mechanical drawings before finalizing procurement.

Display Drivers Selection Notes

Select this component when designing systems requiring a high number of VFD segments driven by a microcontroller via a serial bus. It is suitable for applications needing independent control of multiple display elements without complex external decoding logic. Consider the thermal dissipation capabilities of the SOIC-Wide package if multiple outputs are active simultaneously under high load conditions.

Display Drivers Part Context

This part belongs to the MAX6921 series of VFD drivers, designed to simplify the interface between low-voltage digital logic and high-voltage vacuum fluorescent displays. The series offers various package options to accommodate different PCB layout constraints while maintaining consistent functional performance across the family.

Display Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.