DIONICS, INC.
Phone: (516) 997-7474
65 Rushmore Street Fax: (516) 997-7479
Westbury, NY 11590 Website: www.dionics-usa.com
GAS DISCHARGE DISPLAY SEGMENT DRIVERS
DI-230A DI-240A
General Description:
The DIONICS DI-230A / DI-240A Series circuits are
designed to drive gas discharge display devices from signals
originating from MOS or TTL circuitry. Each output is a switched,
programmable constant current sink with a voltage compliance of 80
or 125 Volts.
These circuits provide for simple interfaces with displays such as the
Beckman, Burroughs Panaplex
®
, Cherry or equivalents.
Features:
ü
High Breakdown Voltage: 80V or 125V.
ü
High Input Voltage Capability: 40V
ü
TTL or MOS Compatible
ü
All Output Currents Programmed with Single Resistor
ü
Requires Few Additional Components
ü
Equivalent To DM-8889, MC3491, ITT-505
ü
DC Restoring Input Diode
Package Layout:
0.185
DIONICS INC.
DI-230A
0.025
0.020
0.070
0.250
0.900
01/2002
17
Out8
In3
5
4
In7
18
In6
2
In8
In5
1
14
Out1
8
9
16
13
Out6
Out4
15
Out2
In2
Pin Connections
3
In1
Out7
GND
Out3
In4
12
6
10
11
Out5
7
PROG
Output
GND
PROG
Input
Circuit Schematic
(Each Section)
Absolute Maximum Rating (Ta = 25
0
C)
Characteristic
Symbol
Notes
Limits
Units
Input Voltage
V
in
Measured With Respect to GND Terminal
40
V
Output Current
I
o
5
mA
Output Voltage DI-230
V
o
Measured With Respect to GND Terminal
80
V
Output Voltage DI-240
V
o
Measured With Respect to GND Terminal
100
V
Power Dissipation DI-230; DI-240
P
D
Derate at 8 mW/
0
C Above 25
0
C Ambient
800
mW
Storage Temperature
T
s
-55 to +125
0
C
Operating Temperature*
T
o
0 to +70
0
C
Electrical Characteristics (Ta = 25
0
C)
Parameter
Symbol
Conditions
Min. Typ. Max. Units
Output Saturation Voltage
V
o
(SAT)
I
o
=1mA; V
i
=3.5V; R
p
=27k
; V
p
=10V
5
V
Output Leakage Current
I
o
(OFF)
V
o
= Rated Voltage; V
i
= 0.4V;
R
p
= 27k
; V
p
= 10V
0.1
10
µA
Output Current Match
I
o
/ I
o
V
o
=60V; V
i
=3.5V; R
p
=27k
; V
p
=10V
±
5
±
10 %
Output Current
I
o
(ON)
V
o
=60V; V
i
=3.5V; R
p
=27k
; V
p
=10V 0.85 1.00 1.15 mA
Input Current
I
i
V
i
= 7.0V
250 370 500 µA
Typical Application:
Sg
15
D1
3
11
Sf
9
Se
14
8
2
13
7
1
+200V
Sd
12
6
Vss
MOS DIGITAL CALCULATOR OR CLOCK
Sc
11
5
1
Sb
4
10
D8
-Vdd
3
18
D7
17
-Vdd
D5
16
2
D4
9
15
8
D6
DIONICS INC.
DI-230
CATHODE DRIVER
10
14
7
Sa
18
D3
6
DIONICS INC.
DI-510B
ANODE DRIVER
CHERRY
Part NO.
W08-002
17
-Vdd
D2
5
13
Sh
16
4
12
Output
Vp
+
Input
-
PROG
Simplified Test Circuit
Vo
Vi
+
Vr
-
GND
Iin
Rp
Iout
+
-
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