MAX6922AQH+TD Maxim Integrated Products, MAX6922AQH+TD Datasheet - Page 7

• Manufacturer Part Number: MAX6922AQH+TD
• Description: IC DRVR VFD TUBE SRL 44-PLCC
• Manufacturer: Maxim Integrated Products

Specifications of MAX6922AQH+TD

• Display Type: Vacuum Fluorescent (VF)
• Interface: 4-Wire Serial
• Current - Supply: 1.65mA
• Voltage - Supply: 8 V ~ 76 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 44-LCC, 44-PLCC
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Configuration: -
• Digits Or Characters: -
• Lead Free Status / Rohs Status: Details

Figure 1. MAX6922/MAX6932/MAX6933/MAX6934 Functional Diagram
Figure 2. MAX6922 CMOS Output Driver Structure
The MAX6922/MAX6932/MAX6933/MAX6934 are VFD
tube drivers comprising a 4-wire serial interface driving
high-voltage Rail-to-Rail
able for both static and multiplexed displays.
The output ports feature high current-sourcing capabili-
ty to drive current into grids and anodes of static or
multiplex VFDs. The ports also have active current sink-
ing for fast discharge of capacitive display electrodes
in multiplexing applications.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
SLEW-RATE
CONTROL
_______________________________________________________________________________________
WHERE n =
27 FOR MAX6932
28 FOR MAX6933
32 FOR MAX6922/MAX6934
BLANK
Detailed Description
LOAD

CLK
DIN
output ports. The driver is suit-
V
BB
40Ω
TYPICAL
750Ω
TYPICAL
Serial-Interfaced VFD Tube Drivers
OUT_
OUT0 OUT1 OUT2
SERIAL-TO-PARALLEL SHIFT REGISTER
27-, 28-, and 32-Output, 76V,
LATCHES
The 4-wire serial interface comprises a shift register
and transparent latch with 32 bits for the MAX6922/
MAX6934, 28 bits for the MAX6933, and 27 bits for the
MAX6932. The shift register is written through a clock
input CLK and a data input DIN. For the MAX6922/
MAX6932/MAX6934, the data propagates to a data out-
put DOUT. The data output allows multiple drivers to be
cascaded and operated together. The output latch is
transparent to the shift register outputs when LOAD is
high, and latches the current state on the falling edge
of LOAD.
Figure 3. MAX6932/MAX6933/MAX6934 CMOS Output Driver
Structure
OUTn
SLEW-RATE
CONTROL
MAX6922/MAX6932/
MAX6934 ONLY
MAX6922
MAX6932
MAX6933
MAX6934
DOUT
V
V
BB
SS
40Ω
TYPICAL
750Ω
TYPICAL
OUT_
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