NTE1749
Integrated Circuit
PushPull Four Channel Driver
Description:
The NTE1749 is a quad pushpull driver capable of delivering output currents to 1A per channel.
Each channel is controlled by a TTLcompatible 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 (NonRepetitive, t = 5ms), I
O
2A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total Power Dissipation (T
groundpins
= +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, JunctiontoCase R
thJC
14
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance, JunctiontoAmbient, R
thJA
80
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V
SS
Pin Connection Diagram
V
S
1
2
3
4
CE 1
Input 1
Output 1
GND
5
GND
6
Output 2
7
Input 2
16
15
14
13
Input 4
Output 4
GND
12
GND
11
Output 3
10
Input 3
8
9
CE 2
Electrical Characteristics
:
(Per Channel, V
S
= 24V, V
SS
= 5V, T
A
= +25
C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Voltage
V
S
V
SS
36
V
Logic Supply Voltage
V
SS
4.5
36
V
Total Quiescent Supply Current
I
S
V
i
= L, I
O
= 0, V
inh
= H
2
6
mA
V
i
= H, I
O
= 0, V
inh
= H
16
24
mA
V
inh
= L
4
mA
Total Quiescent Logic Supply Current
I
S
V
i
= L, I
O
= 0, V
inh
= H
44
60
mA
V
i
= H, I
O
= 0, V
inh
= H
16
24
mA
V
inh
= L
16
24
mA
Input Low Voltage
V
IL
0.3
1.5
V
Input High Voltage
V
IH
V
SS
7V
2.3
V
ss
V
V
SS
>
7V
2.3
7
V
Low Voltage Input Current
I
IL
V
IL
= 1.5V
10
A
High Voltage Input Current
I
IH
2.3V
V
IH
V
SS
0.6V
30
100
A
Inhibit Low Voltage
V
inhL
0.3
1.5
V
Inhibit High Voltage
V
inhH
V
SS
7V
2.3
V
ss
V
V
ss
>
7V
2.3
7
V
Low Voltage Inhibit Current
I
inhL
V
inhL
= 1.5V
30
100
A
High Voltage Inhibit Current
I
IHhH
2.3V
V
inhH
V
SS
0.6V
10
A
Source Output Saturation Voltage
V
CEsatH
I
O
= 1A
1.4
1.8
V
Sink Output Saturation Voltage
V
CEsat L
I
O
= 1A
1.2
1.8
V
Rise Time
t
r
0.1 to 0.9 V
o
250
ns
Fall Time
t
f
0.9 to 0.1 V
o
250
ns
TurnOn Delay Time
t
on
0.5 V
i
to 0.5 V
o
750
ns
TurnOff Delay Time
t
off
0.5 V
i
to 0.5 V
o
200
ns
Truth Table
V
i
(Each Channel)
V
o
V
inh
(Note 2)
H
H
H
L
L
H
H
X (Note 1)
L
L
X (Note 1)
L
Note 1. High Output Impedance
Note 2. Relative to the Considerate Channel
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