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NTE862
Integrated Circuit
Audio Power Amplifier, 5W
Description:
The NTE862 is a power audio amplifier in a 14Lead DIP type package designed for use in consumer
applications. In order to hold system cost to a minimum, the gain is internally fixed at 34dB. A unique
input stage allows the inputs to be ground referenced. The output is automatically self centering to
one half the supply voltage.
Uses include simple phonograph amplifiers, intercoms, line drivers, teaching machine outputs,
alarms, ultrasonic drivers, TV sound systems, AMFM radio, sound projector systems, etc.
Features:
D Wide Supply Voltage Range
D Low Quiescent Power Drain
D Voltage Gain Fixed at 50
D High Peak Current Capability
D Input Referenced to GND
D High Input Impedance
D Low Distortion
D Quiescent Output Voltage is at One Half of the Supply Voltage
Absolute Maximum Ratings:
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28V
Peak Current, ICpeak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3A
Power Dissipation (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.67W
Input Voltage, Vin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.5V
Maximum Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65° to +150°C
Lead Temperature (During Soldering, 10 sec.), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260°C
Electrical Characteristics: (Note 2)
Parameter
Symbol
Test Conditions
Min Typ Max
Input Resistance
Bias Current
ZIN
IBIAS
Inputs Floating
150
100
Note 1. The package is to be derated at 15°C/W junction to heat sink pins.
Note 2. V+ = 22V and TA = +25°C operating with a Staver V7 heat sink for 30 seconds.
Unit
k
nA

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Electrical Characteristics (Cont’d): (Note 2)
Parameter
Symbol
Test Conditions
Gain
Output Power
Quiescent Supply Current
Quiescent Output Voltage
Bandwidth
Supply Voltage
AV
POUT
IQ
VOUTQ
BW
V+
THD = 10%, RL = 8
POUT = 2W, RL = 8
Short Circuit Current (Note 3)
Power Supply Rejection Ratio (Note 4)
Total Harmonic Distortion
ISC
PSRRRTO
THD
POUT = 4W, RL = 8
Min Typ Max Unit
40 50 60 V/V
5 5.5 W
8.5 25 mA
11 V
450 kHz
12 26 V
1.3 A
31 dB
0.25 1.0 %
Note 2. V+ = 22V and TA = +25°C operating with a Staver V7 heat sink for 30 seconds.
Note 3. Output is fully protected against a shorted speaker condition at all voltages up to 22V.
Note 4. Rejection ratio referred to the output with CBYPASS = 5µF, freq = 120Hz.
Pin Connection Diagram
Bypass 1
NonInverting Input 2
* GND 3
* GND 4
* GND 5
Inverting Input 6
GND 7
14 VS
13 N.C.
12 GND *
11 GND *
10 GND *
9 N.C.
8 Vout
*NOTE: Heat Sink Pins
14 8
.280 (7.1)
Max
17
.770 (19.5) Max
.300 (7.62)
.160 (4.0)
Max
.100 (2.45)
.600 (15.24)