NTE1749
Integrated Circuit
Push–Pull Four Channel Driver
Description:
The NTE1749 is a quad push–pull driver capable of delivering output currents to 1A per channel.
Each channel is controlled by a TTL–compatible logic input and each pair of drivers (a full bridge) is
equipped with an inhibit input which turns off all four transistors. A separate supply input is provided
for the logic so that it may be run off a lower voltage to reduce dissipation.
Features:
D
Output Current 1A Per Channel
D
Peak Output Current 2A Per Channel (Non Repetitive)
D
Inhibit Facility
D
High Noise Immunity
D
Separate Logic Supply
D
Overtemperature Protection
Absolute Maximum Ratings:
Supply Voltage, V
S
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36V
Logic Supply Voltage, V
SS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36V
Input Voltage, V
I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Inhibit Voltage, V
inh
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Peak Output Current (Non–Repetitive, t = 5ms), I
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2A
Total Power Dissipation (T
ground–pins
= +80°C), P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5W
Operating Junction Temperature Range, T
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Maximum Thermal Resistance, Junction–to–Case R
thJC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14°C/W
Thermal Resistance, Junction–to–Ambient, R
thJA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80°C/W
Electrical Characteristics
:
(Per Channel, V
S
= 24V, V
SS
= 5V, T
A
= +25°C, unless otherwise specified)
Parameter
Supply Voltage
Logic Supply Voltage
Total Quiescent Supply Current
Symbol
V
S
V
SS
I
S
V
i
= L, I
O
= 0, V
inh
= H
V
i
= H, I
O
= 0, V
inh
= H
V
inh
= L
Total Quiescent Logic Supply Current
I
S
V
i
= L, I
O
= 0, V
inh
= H
V
i
= H, I
O
= 0, V
inh
= H
V
inh
= L
Input Low Voltage
Input High Voltage
Low Voltage Input Current
High Voltage Input Current
Inhibit Low Voltage
Inhibit High Voltage
Low Voltage Inhibit Current
High Voltage Inhibit Current
Source Output Saturation Voltage
Sink Output Saturation Voltage
Rise Time
Fall Time
Turn–On Delay Time
Turn–Off Delay Time
V
IL
V
IH
I
IL
I
IH
V
inhL
V
inhH
I
inhL
I
IHhH
V
SS
≤
7V
V
ss
>
7V
V
inhL
= 1.5V
2.3V
≤
V
inhH
≤
V
SS
–0.6V
V
SS
≤
7V
V
SS
>
7V
V
IL
= 1.5V
2.3V
≤
V
IH
≤
V
SS
– 0.6V
Test Conditions
Min
V
SS
4.5
–
–
–
–
–
–
–0.3
2.3
2.3
–
–
–0.3
2.3
2.3
–
–
–
–
–
–
–
–
Typ
–
–
2
16
–
44
16
16
–
–
–
–
30
–
–
–
–30
–
1.4
1.2
250
250
750
200
Max
36
36
6
24
4
60
24
24
1.5
V
ss
7
–10
100
1.5
V
ss
7
100
±10
1.8
1.8
–
–
–
–
Unit
V
V
mA
mA
mA
mA
mA
mA
V
V
V
µA
µA
V
V
V
µA
µA
V
V
ns
ns
ns
ns
V
CEsatH
I
O
= –1A
V
CEsat L
I
O
= 1A
t
r
t
f
t
on
t
off
0.1 to 0.9 V
o
0.9 to 0.1 V
o
0.5 V
i
to 0.5 V
o
0.5 V
i
to 0.5 V
o
Truth Table
Pin Connection Diagram
V
o
H
L
X (Note 1)
X (Note 1)
V
inh
(Note 2)
H
H
L
L
V
i
(Each Channel)
H
L
H
L
CE 1
1
Input 1
2
Output 1
3
GND
4
GND
5
Output 2
6
Input 2
7
V
S
8
16
V
SS
15
Input 4
14
Output 4
13
GND
12
GND
11
Output 3
10
Input 3
9
CE 2
Note 1. High Output Impedance
Note 2. Relative to the Considerate Channel
ADI Reference Circuit
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