What the 8V–76V supply range means for your VFD design
The MAX6921AUI+ is a vacuum fluorescent (VF) display driver from Maxim Integrated that drives VFD tubes directly from a 4-wire serial interface. Its 8V to 76V supply range covers both the anode and grid voltages needed for most VF panels, from small single-line character displays up to larger multi-segment automotive or industrial VFDs. The 1.65 mA supply current is notably low for a high-voltage driver, which helps keep the overall power budget in check when the display is always on. The wide temp range and high-voltage drive together make the MAX6921AUI+ a single-chip solution for VFD applications that would otherwise require discrete high-voltage transistors and level shifters.
Package and footprint: 28-TSSOP
It ships in Tube form factor, not tape-and-reel — a detail to note for automated pick-and-place lines that expect tape. If you need tape-and-reel, the MAX6921AUI+T variant is the tape-reel counterpart.