NTE2027
Integrated Circuit
Hex LED Digit Driver
Description:
The NTE2027 is an interface circuit in a 14Lead DIP typ package designed to be used in conjunction
with MOS integrated circuits and common cathode LED's in serially addressed multidigit displays.
The number of drivers required for this timemultiplexed system is minimized as a result of the seg-
mentaddressanddigitscan method of LED drive.
Features:
D
Sink Capability Per Driver: 350mA
D
MOS Compatibility (Low Input Current)
D
Low Standby Power
D
HighGain Darlington Circuits
Absolute Maximum Ratings: (Note 1)
Input Voltage Range (Note 2)
5V to V
SS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Collector Output Voltage
10V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Collector Output to Input Voltage
10V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage at V
SS
Pin (with Respect to Any Other Device Pin)
10V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Collector Output Current
Each Collector Output
350mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
All Collector Outputs
600mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous Total Dissipation
800mW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range
0
to +70
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range
65
to +150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead Temperature (During Soldering, 10sec)
+300
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Note 1. "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot
be guaranteed. Except for "Operating Temperature Range" they are not meant to imply that
the device should be operated at these limits. The table of "Electrical Characteristics" pro-
vides conditions for actual device operation.
Note 2. The input is the only device pin which may be negative with respect to GND.
DC Electrical Characteristics:
(V
SS
= 10V, T
A
= 0
to +70
C, Note 3, Note 4 unless otherwise
specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Low Level Output Voltage
V
OL
Input = 6.5V through 1k
,
I
OUT
= 350mA, T
A
= +25
C
1.2
1.4
V
Input = 6.5V through 1k
,
I
OUT
= 350mA
1.6
V
High Level Output Current
I
OH
V
OH
= 10V, I
IN
= 40
A
200
A
V
OH
= 10V, V
IN
= 0.5V
200
A
Input Current at Max Input Voltage
I
I
V
IN
= 10V, I
OL
= 20mA
2.2
3.3
mA
Current into V
SS
Pin
I
SS
1.0
mA
Note 3. Unless otherwise specified, Min/Max limits apply across the 0
to +70
C temperature range.
Note 4. All currents into device pins shown as positive, out of device as negative, all voltages refer-
enced to GND unless otherwise specified. All values shown as mmax or Min on absolute
value basis.
AC Switching Characteristics (V
SS
= 7.5V, T
A
= +25
C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Propagation Delay Time
LowtoHigh Level Output
t
PLH
V
IH
= 7.5V, R
L
= 39
, C
L
= 15pF
300
ns
HightoLow Level Output
t
PHL
30
ns
V
SS
1A
Pin Connection Diagram
1Y
3A
GND
5A
5Y
6Y
1
2
3
4
2Y
2A
5
6
3Y
7
4Y
14
13
12
11
6A
10
9
8
4A
.600 (15.24)
1
7
14
8
.300
(7.62)
.200 (5.08)
Max
.100 (2.45)
.099 (2.5) Min
.785 (19.95)
Max
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