Overview

Features and Benefits

  • 5MHz Industry-Standard 4-Wire Serial Interface
  • 3V to 5.5V Logic Supply Range
  • 8V to 76V Grid/Anode Supply Range
  • Push-Pull CMOS High-Voltage Outputs
  • Outputs can Source 40mA, Sink 4mA Continuously
  • Outputs can Source 75mA Repetitive Pulses
  • Outputs can be Paralleled for Higher Current Drive
  • Any Output can be Used as a Grid or an Anode Driver
  • Blank Input Simplifies PWM Intensity Control
  • Small 20-Pin SO Package
  • -40°C to +125°C Temperature Range

Product Details

The MAX6920 is a 12-output, 76V, vacuum fluorescent display (VFD) tube driver that interfaces a multiplexed VFD tube to a VFD controller such as the MAX6850-MAX6853 or to a microcontroller. The MAX6920 is also ideal for driving either static VFD tubes or telecom relays.

Data is inputted using an industry-standard 4-wire serial interface (CLOCK, DATA, LOAD, BLANK) for compatibility with both industry-standard drivers and Maxim's VFD controllers.

For easy display control, the active-high BLANK input forces all driver outputs low, turning the display off, and automatically puts the MAX6920 into shutdown mode. Display intensity may also be controlled by pulse-width modulating the BLANK input.

The MAX6920 has a serial interface data output pin, DOUT, allowing any number of devices to be cascaded on the same serial interface.

The MAX6920 is available in a 20-pin SO package. Maxim also offers VFD drivers with either 20 (MAX6921/MAX6931) or 32 outputs (MAX6922 and MAX6932).

Applications

  • Avionics
  • Gaming Machines
  • Industrial Weighing
  • Security
  • Telecom
  • White Goods

Product Categories

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Product Recommendations

MAX6920 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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