General Description
The MAX6921/MAX6931 are 20-output, 76V, vacuum fluorescent display (VFD) tube drivers that interface a multiplexed VFD tube to a VFD controller, such as the MAX6850–MAX6853, or to a microcontroller. The MAX6921/MAX6931 are also ideal for driving static VFD tubes or telecom relays.

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 (MAX6931 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
♦ Blank Input Simplifies PWM Intensity Control
♦ Small 28-Pin TSSOP Package
♦ -40°C to +125°C Temperature Range

APPLICATIONs
    White Goods
    Gaming Machines
    Automotive
    Avionics
    Instrumentation
    Industrial Weighing
    Security
    Telecom
    VFD Modules
    Industrial Control