1380

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 VS = ±14V/4Ω.
This device provides high output current and has very low harmonic and cross–over distortion. Further, the NTE1380 incorporates a short circuit protection system comprising an arrangement for automatically 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, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18V
Input Voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VS
Differential Input Voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15V
Output Peak Current (Internally Limited), IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5A
Power Dissipation (TC = +90°C), Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20W
Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3°C/W
Min. Thermal Shut–Down Junction Temperature (VS = ±14V, Ptot = 12W, TA = +25°C), Tsd +110°C
Electrical Characteristics: (VS = ±14V, TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
±6
–
±18
V
Supply Voltage
VS
Quiescent Drain Current
Id
VS = ±18V
–
40
60
mA
Input Bias Current
Ib
VS = ±18V
–
0.2
2.0
µA
Input Offset Voltage
VOS
VS = ±18V
–
±2
±20
mV
Input Offset Current
IOS
VS = ±18V
–
±20
±200
nA
Output Offset Voltage
VOS
VS = ±18V
–
±2.5
±22
mV
Output Power
PO
THD = 0.5%, GV = 30dB, f = 40 to 15000Hz,
RL = 4Ω
12
14
–
W
THD = 0.5%, GV = 30dB, f = 40 to 15000Hz,
RL = 8Ω
8
9
–
W
THD = 10%, GV = 30dB, f = 1kHz, RL = 4Ω
–
18
–
W
THD = 10%, GV = 30dB, f = 1kHz, RL = 8Ω
–
11
–
W
Electrical Characteristics (Cont’d): (VS = ±14V, TA = +25°C unless otherwise specified)
Parameter
Symbol
Frequency Response (–3dB)
B
PO = 12W, GV = 30dB, RL = 4Ω
Input Sensitivity
Vi
GV = 30dB, f = 1kHz, PO = 12W, RL = 4Ω
–
215
–
mV
GV = 30dB, f = 1kHz, PO = 8W, RL = 8Ω
–
250
–
mV
f = 1kHz, Open Loop
–
90
–
dB
29.5
30.0
30.5
dB
PO = 0.1 to 12W, GV = 30dB, RL = 4Ω,
f = 40 to 15000Hz
–
0.2
0.5
%
PO = 0.1 to 8W, GV = 30dB, RL = 8Ω,
f = 40 to 15000Hz
–
0.1
0.5
%
Voltage Gain
GV
Test Conditions
f = 1kHz, Closed Loop
Total Harmonic Distortion
THD
Min
Typ
Max
10 to 140,000
Unit
Hz
Input Noise Voltage
eN
B = 22Hz to 22kHz, RL = 4Ω
–
3
10
µV
Input Noise Current
IN
B = 22Hz to 22kHz, RL = 4Ω
–
80
200
pA
Input Resistance (Pin1)
RI
0.5
5.0
–
MΩ
RL = 4Ω, Rg = 22kΩ, GV = 30dB,
fripple = 100Hz, Vripple = 0.5Veff
40
50
–
dB
PO = 14W, RL = 4Ω
–
900
–
mA
PO = 9W, RL = 8Ω
–
500
–
mA
Supply Voltage Rejection
Drain Current
SVR
Id
Pin Connection Diagram
(Front View)
Non–Inverting Input
Inverting Input
(+) VS
Output
(–) VS/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
1
2
3
4
5
.850
(21.6)
Max
.135 (3.45)
.150 (3.81)
.182
(4.62)
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