NTE1380
Integrated Circuit
Audio Power Amplifier, 14W
Description:
The NTE1380 is a monolithic integrated circuit in a 5–Lead TO220 type package intended for use as
an audio class AB amplifier. Typically, it provides 14W output power (THD = 0.5%) at V
S
=
±14V/4Ω.
This device provides high output current and has very low harmonic and cross–over distortion. Fur-
ther, the NTE1380 incorporates a short circuit protection system comprising an arrangement for auto-
matically limiting the dissipated power so as to keep the working point of the output transistors within
their safe operating area. A thermal shut–down system is also included.
Absolute Maximum Ratings:
Supply Voltage, V
S
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±18V
Input Voltage, V
I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
S
Differential Input Voltage, V
I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±15V
Output Peak Current (Internally Limited), I
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5A
Power Dissipation (T
C
= +90°C), P
tot
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20W
Operating Junction Temperature Range, T
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Thermal Resistance, Junction–to–Case, R
thJC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3°C/W
Min. Thermal Shut–Down Junction Temperature (V
S
=
±14V,
P
tot
= 12W, T
A
= +25°C), T
sd
+110°C
Electrical Characteristics:
(V
S
=
±14V,
T
A
= +25°C unless otherwise specified)
Parameter
Supply Voltage
Quiescent Drain Current
Input Bias Current
Input Offset Voltage
Input Offset Current
Output Offset Voltage
Output Power
Symbol
V
S
I
d
I
b
V
OS
I
OS
V
OS
P
O
V
S
=
±18V
V
S
=
±18V
V
S
=
±18V
V
S
=
±18V
V
S
=
±18V
THD = 0.5%, G
V
= 30dB, f = 40 to 15000Hz,
R
L
= 4Ω
THD = 0.5%, G
V
= 30dB, f = 40 to 15000Hz,
R
L
= 8Ω
THD = 10%, G
V
= 30dB, f = 1kHz, R
L
= 4Ω
THD = 10%, G
V
= 30dB, f = 1kHz, R
L
= 8Ω
Test Conditions
Min
±6
–
–
–
–
–
12
8
–
–
Typ
–
40
0.2
±2
±20
±2.5
14
9
18
11
Max
±18
60
2.0
±20
±200
±22
–
–
–
–
Unit
V
mA
µA
mV
nA
mV
W
W
W
W
Electrical Characteristics (Cont’d):
(V
S
=
±14V,
T
A
= +25°C unless otherwise specified)
Parameter
Frequency Response (–3dB)
Input Sensitivity
Symbol
B
V
i
G
V
THD
Test Conditions
P
O
= 12W, G
V
= 30dB, R
L
= 4Ω
G
V
= 30dB, f = 1kHz, P
O
= 12W, R
L
= 4Ω
G
V
= 30dB, f = 1kHz, P
O
= 8W, R
L
= 8Ω
Voltage Gain
f = 1kHz, Open Loop
f = 1kHz, Closed Loop
Total Harmonic Distortion
P
O
= 0.1 to 12W, G
V
= 30dB, R
L
= 4Ω,
f = 40 to 15000Hz
P
O
= 0.1 to 8W, G
V
= 30dB, R
L
= 8Ω,
f = 40 to 15000Hz
Input Noise Voltage
Input Noise Current
Input Resistance (Pin1)
Supply Voltage Rejection
Drain Current
e
N
I
N
R
I
SVR
I
d
R
L
= 4Ω, R
g
= 22kΩ, G
V
= 30dB,
f
ripple
= 100Hz, V
ripple
= 0.5V
eff
P
O
= 14W, R
L
= 4Ω
P
O
= 9W, R
L
= 8Ω
Pin Connection Diagram
(Front View)
B = 22Hz to 22kHz, R
L
= 4Ω
B = 22Hz to 22kHz, R
L
= 4Ω
Min
Typ
Max
Unit
Hz
mV
mV
dB
dB
%
%
µV
pA
MΩ
dB
mA
mA
10 to 140,000
–
–
–
29.5
–
–
–
–
0.5
40
–
–
215
250
90
30.0
0.2
0.1
3
80
5.0
50
900
500
–
–
–
30.5
0.5
0.5
10
200
–
–
–
–
Non–Inverting Input
Inverting Input
(+) V
S
Output
(–) V
S
/Tab
.408
(10.37)
Max
.182 (4.62) Max
.054
(1.37)
Max
.114 (2.9)
.619
(15.72)
Max
.364
(9.25)
Max
.896
(22.76)
Max
.850
(21.6)
Max
1
2
3
4
5
.135 (3.45)
.150 (3.81)
.182
(4.62)
