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MAX6922 - Serial-Interfaced VFD Tube Drivers

General Description

The MAX6922/MAX6932/MAX6933/MAX6934 multi-output, 76V, vacuum-fluorescent display (VFD) tube drivers that interface a VFD tube to a microcontroller or a VFD controller, such as the MAX6850

MAX6853.

Key Features

  • 5MHz Industry-Standard 4-Wire Serial Interface.
  • 3V to 5.5V Logic Supply Range.
  • 8V to 76V Grid/Anode Supply Range.
  • -11V to 0V Filament Bias Supply (MAX6932/MAX6933/MAX6934 Only).
  • 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.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX6920 Serial-Interfaced VFD Tube Driver
MAX6921 (MAX6921 / MAX6931) Serial-Interfaced VFD Tube Drivers
MAX692A Microprocessor Supervisory Circuits
MAX6931 (MAX6921 / MAX6931) Serial-Interfaced VFD Tube Drivers
MAX6932 Serial-Interfaced VFD Tube Drivers

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com 19-3224; Rev 0; 1/04 27-, 28-, and 32-Output, 76V, Serial-Interfaced VFD Tube Drivers General Description The MAX6922/MAX6932/MAX6933/MAX6934 multi-output, 76V, vacuum-fluorescent display (VFD) tube drivers that interface a VFD tube to a microcontroller or a VFD controller, such as the MAX6850–MAX6853. The MAX6922/MAX6934 have 32 outputs, while the MAX6932 has 27 outputs, and the MAX6933 has 28 outputs. All devices are also suitable for driving telecom relays. Data is input using standard 4-wire serial interface (CLOCK, DATA, LOAD, BLANK) compatible with other VFD drivers and controllers. For easy display control, the active-high BLANK input forces all driver outputs low, turning the display off, and automatically puts the IC into shutdown mode.