NTE NTE1749

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, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36V
Logic Supply Voltage, VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36V
Input Voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Inhibit Voltage, Vinh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Peak Output Current (Non–Repetitive, t = 5ms), IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2A
Total Power Dissipation (Tground–pins = +80°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5W
Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Maximum Thermal Resistance, Junction–to–Case RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14°C/W
Thermal Resistance, Junction–to–Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80°C/W
Electrical Characteristics: (Per Channel, VS = 24V, VSS = 5V, TA = +25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Voltage
VS
VSS
–
36
V
Logic Supply Voltage
VSS
4.5
–
36
V
Vi = L, IO = 0, Vinh = H
–
2
6
mA
Vi = H, IO = 0, Vinh = H
–
16
24
mA
Vinh = L
–
–
4
mA
Vi = L, IO = 0, Vinh = H
–
44
60
mA
Vi = H, IO = 0, Vinh = H
–
16
24
mA
Vinh = L
–
16
24
mA
–0.3
–
1.5
V
VSS ≤ 7V
2.3
–
Vss
V
VSS > 7V
2.3
–
7
V
Total Quiescent Supply Current
Total Quiescent Logic Supply Current
IS
IS
Input Low Voltage
VIL
Input High Voltage
VIH
Low Voltage Input Current
IIL
VIL = 1.5V
–
–
–10
µA
High Voltage Input Current
IIH
2.3V ≤ VIH ≤ VSS – 0.6V
–
30
100
µA
–0.3
–
1.5
V
VSS ≤ 7V
2.3
–
Vss
V
Vss > 7V
2.3
–
7
V
Inhibit Low Voltage
VinhL
Inhibit High Voltage
VinhH
Low Voltage Inhibit Current
IinhL
VinhL = 1.5V
–
–30
100
µA
High Voltage Inhibit Current
IIHhH
2.3V ≤ VinhH ≤ VSS –0.6V
–
–
±10
µA
Source Output Saturation Voltage
VCEsatH IO = –1A
–
1.4
1.8
V
Sink Output Saturation Voltage
VCEsat L IO = 1A
–
1.2
1.8
V
Rise Time
tr
0.1 to 0.9 Vo
–
250
–
ns
Fall Time
tf
0.9 to 0.1 Vo
–
250
–
ns
Turn–On Delay Time
ton
0.5 Vi to 0.5 Vo
–
750
–
ns
Turn–Off Delay Time
toff
0.5 Vi to 0.5 Vo
–
200
–
ns
Truth Table
Pin Connection Diagram
Vi (Each Channel)
Vo
Vinh (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
CE 1 1
Input 1 2
Output 1 3
16 VSS
15 Input 4
14 Output 4
GND 4
13 GND
GND 5
12 GND
Output 2 6
Input 2 7
VS 8
11 Output 3
10 Input 3
9 CE 2
16
9
.260 (6.6) Max
1
8
.300
(7.62)
.785 (19.9)
Max
.200 (5.08)
Max
.245
(6.22)
Min
.100 (2.54)
.700 (17.7)