Maxim Integrated (MAX6921AWI+) Display VFD Tube Driver, 20 Output

Product OverviewThe MAX6921AWI+ is a 20 output, 76V, serial interfaced VFD tube driver in 28 pinWSOIC package. It is a 20 output, 76V, vacuum fluorescent display (VFD) tubedriver that interface a multiplexed VFD tube to a VFD controller such as theMAX6850 and MAX6853 or to a microcontroller. The MAX6921 also ideal for drivingstatic VFD tubes or telecom relays. Data is input using an industry standard 4wire serial interface (CLOCK, DATA, LOAD, BLANK) compatible with either Maxim'sor industry standard VFD driver and controller. For easy display control, theactive high BLANK input forces all driver outputs low, turning the display offand automatically puts the MAX6921 into shutdown mode. Display intensity canalso be controlled by directly pulse width modulating the BLANK input. TheMAX6921 has a serial interface data output DOUT allowing any number of devicesto be cascaded on the same serial interface.Supply voltage range is 3V to 5.5VOperating temperature range from -40°C to 125°C5MHz industry standard 4 wire serial interfaceGrid/anode supply range from 8V to 76VPush-pull CMOS high voltage outputsOutputs can source 40mA, sink 4mA continuouslyOutputs can source 75mA repetitive pulsesOutputs can be paralleled for higher current driveAny output can be used as a grid or an anode driverBlank input simplifies PWM intensity controlApplicationsCommunications & Networking, Avionics, Automotive, Industrial, Security,Consumer Electronics