MAX6921AWI Maxim Integrated Products, MAX6921AWI Datasheet - Page 5

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MAX6921AWI

Manufacturer Part Number
MAX6921AWI
Description
Display Drivers 20-Output High Volta ge Display Driver Ca
Manufacturer
Maxim Integrated Products
Datasheet

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0
(V
MAX6921 MAX6931
CC
1–5
6
7
8
9
= 5.0V, V
TSSOP
800
750
700
650
600
550
500
450
400
BB
14
12
10
1–5
8
6
4
2
0
PIN
6
7
8
-40
-40
= 76V, and T
vs. TEMPERATURE (OUTPUTS HIGH)
I
OUT
V
vs. TEMPERATURE (OUTPUT LOW)
V
V
V
_______________________________________________________________________________________
CC
CC
-20
CC
CC
-20
LOGIC SUPPLY CURRENT (I
= 4mA
= 3.3V, CLK = 5MHz
= 5V, CLK = 5MHz
= 5V, CLK = IDLE
= 3.3V, CLK = IDLE
SO/PLCC
MAX6921
0
0
OUTPUT VOLTAGE
WIDE
TEMPERATURE (°C)
TEMPERATURE (°C)
27
28
1
2
20
20
A
= +25°C, unless otherwise noted.)
40
40
V
BB
= 40V
60
60
OUT4 to
NAME
DOUT
OUT0
V
V
V
DIN
V
BB
BB
CC
20-Output, 76V, Serial-Interfaced
80
80
BB
= 8V
= 76V
CC
100
100
)
Typical Operating Characteristics (continued)
VFD Anode and Grid Drivers. OUT4 to OUT0 are push-pull outputs swinging from
V
Serial-Data Input. Data is loaded into the internal shift register on CLK’s rising edge.
Logic Supply Voltage. Bypass to GND with 100nF capacitor.
VFD Tube Supply Voltage. Bypass to GND with 100nF capacitor.
Serial-Clock Output. Data is clocked out of the internal shift register to DOUT on
CLK’s rising edge.
120
120
BB
to GND (MAX6921 only), and from V
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
-40
I
OUTPUT RISE AND FALL WAVEFORM
OUT
vs. TEMPERATURE (OUTPUT HIGH)
-20
VFD Tube Drivers
FUNCTION
= -40mA
OUTPUT VOLTAGE (V
V
BB
0
BB
TEMPERATURE (°C)
= 76V
to V
20
V
1µs/div
BB
SS
40
= 8V
(MAX6931 only).
V
60
BB
= 40V
BB
Pin Description
80
- V
MAX6921/31 toc07
H
100
)
120
BLANK
2V/div
OUT_
20V/div
5

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