1288

NTE1288
Integrated Circuit
Audio Power Amplifier, 10W
for Car Radio
Description:
The NTE1288 has improved performance with the same pin configuration as the NTE1232. The additional features of the NTE1232; very low number of external components, ease of assembly, space
and cost saving, are maintained. The device provides a high output current capability (up to 3.5A),
very low harmonic and cross distortion.
Complete safe operation is guaranteed due to protection against DC and AC short−circuit between
all pins and GND, thermal over−range, load dump voltage surge up to 40V, polarity inversion and fortuitous open ground.
Absolute Maximum Ratings:
Peak Supply Voltage (50ms), VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28V
OPerating Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Output Peak Current, IO
Repetitive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5A
Non−Repetitive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5A
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
Static Characteristics: (TA = +25°C, VCC = 14.4V unless otherwise specified)
Parameter
Symbol Min
Supply Voltage
Typ
Max
Unit
VCC
8
−
18
V
Quisecnt Output Voltage
Pin4
VO
6.1
6.9
7.7
V
Quiescent Drain Current
Pin5
ICC
−
44
50
mA
Dynamic Characteristics: (TA = +25°C, VCC = 14.4V, AV = 40dB unless otherwise specified)
Parameter
Output Power
Symbol
PO
Input Saturation Voltage
VI
Input Sensitivity
S
Test Conditions
Min
Typ
Max
Unit
RL = 4Ω
5.5
6.0
−
W
RL = 2Ω
9
10
−
W
RL = 3.2Ω
−
7.5
−
W
RL = 1.6Ω
−
12
−
W
300
−
−
mV
f = 1kHz, PO = 500mW, RL = 4Ω
−
14
−
mV
PO = 6W, RL = 4Ω
−
55
−
mV
PO = 500mW, RL = 2Ω
−
10
−
mV
PO = 10W, RL = 2Ω
−
50
−
mV
d = 10%, f = 1kHz
Bandwidth (−3dB)
B
PO = 1W, RL = 4Ω
Harmonic Distortion
d
50mW ≤ PO ≤ 4.5W, RL = 4Ω, f = 1kHz
−
0.15
−
%
50mW ≤ PO ≤ 7.5W, RL = 2Ω, f = 1kHz
−
0.15
−
%
70
150
−
kΩ
−
80
−
dB
39.5
40.0
40.5
dB
Input Resistance (Pin1)
RI
f = 1kHz
Voltage Gain
Open Loop
AV
RL = 4Ω, f = 1kHz
40 to 15,000
Closed Loop
Hz
Input Noise Voltage
Vn
B (−3dB) = 10Hz to 25kHz, B (−20dB) = 4Hz to 27kHz
−
1
5
µV
Input Noise Current
in
B (−3dB) = 10Hz to 25kHz, B (−20dB) = 4Hz to 27kHz
−
60
200
pA
Efficiency
η
f = 1kHz, PO = 6W, RL = 4Ω
−
69
−
%
PO = 10W, RL = 2Ω
−
65
−
%
f = 100Hz, Vripple = 500mV, RG = 10kΩ, RL = 4Ω
30
36
−
dB
Supply Voltage Rejection
SVR
Pin Connection Diagram
.408
(10.37
Max
0.45 (1.37)
Max
.114 (2.9)
.619
(15.72)
Max
.850
(21.6)
Max
.364
(9.25)
Max
.896
(22.76)
Max
Non−Invert Input
Invert Input
VCC
Output
GND
.135 (3.45)
1
3
2
5
.150
(3.81)
4
.182 (4.62) Max
.182
(4.62)
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