1286

NTE1285 & NTE1286
Integrated Circuit
Audio Power Amplifier, 5.8W
Description:
The NTE1285 and NTE1286 are audio power amplifiers in a 7–Lead SIP type package designed especially for car radio and car stereo applications. These devices are encapsulated in newly developed
small packages featuring low thermal resistance, providing easy design for 2Ω. At 14.4V the devices
give output power of 7W with RL = 4Ω and 11W with RL = 2Ω.
Features:
D High Output Power
D Low Transient Noise at Power Supplu Switch ON
D Mirror Image Pin Configurations
D Protection Circuits are Provided for the Following:
Load Dump Protection
Thermal Shut–Down Protection
Overvoltage Protection
Output Terminal Short–Circuit Protection
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage (Surge PW = 200ms), VCCsurge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
Supply Voltage (Quiescent, Note 1), VCC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V
Supply Voltage (Operational), VCC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Peak Circuit Current, ICCpeak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5A
Packag Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12W
Operating Temperature Range (Note 1), Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Note 1. Using an aluminum heat sink 100mm x 100mm x 1mm.
Recommended Operating Conditions: (TA = +25°C unless otherwise specified)
Supply Voltage Range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.5V to 16V
Load Impedance, RL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Ω to 2Ω
Electrical Characteristics: (TA = +25°C, f = 1kHz, RL = 4Ω unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Circuit Current
ICC
uin = 0, VCC = 13.2V
23
45
80
mA
Output Power
PO
RL = 4Ω, THD = 10%, VCC = 13.2V
5.0
5.8
–
W
RL = 4Ω, THD = 10%, VCC = 14.4V
–
7.0
–
W
RL = 2Ω, THD = 10%, VCC = 13.2V
–
9.2
–
W
RL = 2Ω, THD = 10%, VCC = 14.4V
–
11.0
–
W
THD
PO = 0.5W
–
0.3
1.0
%
Voltage Gain
Au
PO = 0.5W
51.0 53.5 56.0
dB
Output Noise Level
un
Rg = 10kΩ
Total Harmonic Distortion
–
Pin Connection Diagram
(Front View)
NTE1285
1.4
4.0
mVrms
Pin Connection Diagram
(Front View)
7 VCC
7 Input
6 Bootstrap
6 Bypass
5 Output
5 Feedback
NTE1286
4 GND
3 Feedback
4 GND
3 Output
2 Bypass
2 Bootstrap
1 Input
1 VCC
.787 (20.0) Max
.590 (15.0)
Max
.158 (4.0)
Max
.512
(13.0)
Max
.590
(15.0)
Max
.071
(1.8)
R
1
.256
(6.5)
7
.010 (.254)
.100 (2.45)
.083 (2.1)
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