862

NTE862
Integrated Circuit
Audio Power Amplifier, 5W
Description:
The NTE862 is a power audio amplifier in a 14−Lead 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, AM−FM 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
Input Resistance
Bias Current
Symbol
Test Conditions
ZIN
IBIAS
Inputs Floating
Min
Typ
Max
Unit
−
150
−
kΩ
−
100
−
nA
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.
Electrical Characteristics (Cont’d): (Note 2)
Parameter
Symbol
Gain
Test Conditions
AV
Output Power
POUT
THD = 10%, RL = 8Ω
Min
Typ
Max
Unit
40
50
60
V/V
5
5.5
−
W
Quiescent Supply Current
IQ
−
8.5
25
mA
Quiescent Output Voltage
VOUTQ
−
11
−
V
−
450
−
kHz
Bandwidth
BW
Supply Voltage
V+
12
−
26
V
Short Circuit Current (Note 3)
ISC
−
1.3
−
A
PSRRRTO
−
31
−
dB
−
0.25
1.0
%
Power Supply Rejection Ratio (Note 4)
Total Harmonic Distortion
THD
POUT = 2W, RL = 8Ω
POUT = 4W, RL = 8Ω
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
14 VS
Non−Inverting Input 2
* GND 3
13 N.C.
12 GND *
* GND 4
11 GND *
* GND 5
10 GND *
Inverting Input 6
9 N.C.
GND 7
8 Vout
*NOTE: Heat Sink Pins
14
8
.280 (7.1)
Max
1
7
.770 (19.5) Max
.300 (7.62)
.160 (4.0)
Max
.100 (2.45)
.600 (15.24)
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