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Analog Devices MAX6922AQH+D — Discrete Semiconductors
Analog Devices

MAX6922AQH+D VFD Tube Driver, 4-Wire Serial, 44-PLCC

MPNMAX6922AQH+D
End of Life

Maxim Integrated MAX6922AQH+D, Vacuum Fluorescent (VF) Display Driver, 4-Wire Serial Interface, 8V ~ 76V Supply, 1.65 mA Supply Current, -40°C ~ 125°C, 44-LCC (J-Lead) Package, Tube.

$10.72Ref. price · indicative, final on quote
MAX6922AQH+D datasheet
Packaging44-LCC (J-Lead)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
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Specifications

MAX6922AQH+D Technical Specifications
ParameterValue
Display typeVacuum Fluorescent (VF)
Mounting typeSurface Mount
Voltage8V ~ 76V
Current - supply1.65 mA
Interface4-Wire Serial
Operating temperature-40°C ~ 125°C
PackageTube
Case44-LCC (J-Lead)

Product details

VFD driver for high-voltage panel applications

The MAX6922AQH+D is a vacuum-fluorescent display driver from Maxim Integrated. It uses a 4-wire serial interface to shift out display data to the VFD tube's grid and anode segments. The part accepts a supply range of 8V to 76V, covering both the logic rail and the high-voltage anode supply typical in automotive dashboard and industrial VFD panels. Supply current sits at 1.65 mA, which keeps the power budget tight in always-on displays. The operating temperature range of -40°C to 125°C qualifies it for under-hood or outdoor equipment where ambient heat cycles are severe. The 44-PLCC package (J-lead, surface mount) saves board area compared to through-hole alternatives.

8V to 76V supply — what it means for the BOM

The wide supply range (8V to 76V) means this driver can run directly off an unregulated 12V or 24V automotive rail without a separate boost converter for the VFD anode. That saves a DC-DC stage and its associated inductor and capacitor cost. At the high end, 76V covers most VFD tube bias requirements without an external voltage multiplier. The 1.65 mA supply current is the chip's own draw; the actual VFD tube current comes from the anode supply through the driver's output stages, so the total system current depends on the tube's segment load.

Lifecycle and sourcing reality

The MAX6922AQH+D carries an Active lifecycle status from Maxim Integrated. No end-of-life notice or last-time-buy schedule is published. ROHS3 compliance is confirmed.

Frequently asked questions

What voltage does the MAX6922AQH+D require?

The supply voltage range is 8V to 76V. The chip draws 1.65 mA from that rail. The VFD tube's anode and grid voltages come from the same supply through the driver outputs.

Is MAX6922AQH+D compatible with 5V logic?

Yes, the 4-wire serial interface logic levels are referenced to the chip's supply, which can be as low as 8V. A 5V microcontroller output is within the logic high threshold at that supply voltage. For 3.3V MCUs, verify the logic-low and logic-high thresholds in the datasheet, but the wide supply range typically accommodates both.