1115

NTE1115 & NTE1115A
Integrated Circuit
Audio Power Amplifier, 7W
Description:
The NTE1115 and NTE1115A are monolithic integrated circuits designed for use as low frequency
class B amplifiers. These devices provide 7W power output at 16V/4Ω, 6W at 14.4V/4Ω, 2.5W at
9V/Ω, 1W at 6V/4Ω and works with a wide range of supply voltages (4V to 20V); and gives high output
current (up to 2.5A), high efficiency (75% at 6W output), very low harmonic and cross−over distortion.
In addition, thermal protection is provided.
Absolute Maximum Ratings:
Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V
Output Peak Current (Non−Repetitive), IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5A
Output Current (Repetitive), IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5A
Power Dissipation, Ptot
TA = +70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1W
Ttab = +100°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5W
Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40° to +150°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40° to +150°C
Thermal Resistance, Junction−to−Tab, RthJ−TAB
NTE1115 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10°C/W
NTE1115A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12°C/W
Thermal Resistance, Junction−to−Ambient, RthJA
NTE1115 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80°C/W
NTE1115A (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W
Note 1. Obtained with tabs soldered to printed circuit with minimized copper area.
Elecrtrical Characteristics: (TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max Unit
4
−
20
V
6.4
7.2
8.0
V
Supply Voltage (Pin1)
VS
Quiescent Output Voltage (Pin12)
VO
Quiescent Drain Current
Id
−
12
20
mA
Bias Current (Pin8)
Ib
−
0.4
−
μA
VS = 14.4V
Elecrtrical Characteristics (Cont’d): (TA = +25°C unless otherwise specified)
Parameter
Symbol
Power Output
PO
Input Voltage
THD = 10%, RL = 4Ω,
f = 1kHz
Min
Typ
−
7.0
−
W
5.5
6.0
−
W
VS = 9V
−
2.5
−
W
VS = 6V
−
1.0
−
W
−
−
22
mW
Rf = 56Ω
−
80
−
mV
Rf = 22Ω
−
35
−
mV
−
5
−
MΩ
VS = 16V
VS = 14.4V
Vi(rms)
Input Sensitivity
Vi
Input Resistance (Pin8)
Ri
Frequency Response (−3dB)
B
Total Harmonic Distortion
THD
Voltage Gain (Open Loop)
GV
Voltage Gain (Closed Loop)
GV
Input Noise Voltage
eN
Input Noise Current
Efficiency
PO = 6W, VS = 14.4V,
RL = 4Ω
4Ω, f = 1kHz
VS = 14.4V, RL = 4Ω
Max Unit
C3 = 820pF
40 to 20,000
Hz
C3 = 1500pF
40 to 10,000
Hz
PO = 50mW to 3W, VS = 14.4V, RL = 4Ω,
f = 1kHz
−
0.3
−
%
VS = 14.4V, RL = 4Ω, f = 1kHz
−
80
−
dB
34
37
40
dB
VS = 14.4V, Rg = 0,
B (−3dB) = 20Hz to 20kHz
−
2
−
μV
iN
VS = 14.4V, B (−3dB) = 20Hz to 20kHz
−
0.1
−
nA
h
PO = 5W, VS = 14.4V, RL = 4Ω, f = 1kHz
−
70
−
%
VS = 14.4V, RL = 4Ω, fripple = 100Hz
−
38
−
dB
SVR
Pin Connection Diagram
VCC 1
12 Output
N.C. 2
11 N.C.
N.C. 3
10 GND
Bootstrap 4
Compensation 5
Feedback 6
Tab
Tab
Supply Voltage Rejection
Test Conditions
9 Substrate GND
8 Input
7 Ripple Rejection
NTE1115
.250 (6.35)
.142 (3.6)
Dia
12
7
1.004
(25.5)
Max
.650
(16.5)
1
6
.770 (19.5) Max
.265 (6.7)
.060
(4.0)
.100 (2.54)
.700 (17.78)
NTE1115 Alt.
.250 (6.35)
.142 (3.6)
Dia
12
1.004
(25.5)
Max
7
.650
(16.5)
1
6
.770 (19.5) Max
.265 (6.7)
.060
(4.0)
.100 (2.54)
.700 (17.78)
NTE1115A
.247 (6.27)
12
7
1
6
.677
(17.2)
.770 (19.5) Max
.260 (6.6)
.233
(5.9)
Max
.100 (2.54)
.700 (17.78)
.099 (2.5) Min
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