NTE7143
Integrated Circuit
Audio Power Amplifier, 20W
Description:
The NTE7143 is a monolithic power amplifier in a 5–Lead TO220 type package offering very low
distortion and high quality performance for consumer audio applications.
This device delivers 20W into a 4Ω or 8Ω load on ±25V supplies. Using an 8Ω load and ±30V supplies,
over 30W of power may be delivered. The amplifier is designed to operate with a minimum of external
components. Device overload protection consists of both internal current limit and thermal shutdown.
The NTE7143 design takes advantage of advanced circuit techniques and processing to achieve ex-
tremely low distortion levels even at high output power levels. Other outstanding features include high
gain, fast slew rate and a wide power bandwidth, large output voltage swing, high current capability,
and a very wide supply range. The amplifier is internally compensated and stable for gains of 10 or
greater.
Features:
C0068 Up to 30W Output Power
C0068 A
VO
Typically 90dB
C0068 Low Distortion: 0.015%, 1kHz, 20W
C0068 Wide Power Bandwidth: 70kHz
C0068 Protection for AC and DC Short Circuits to GND
C0068 Thermal Protection with Parole Circuit
C0068 High Current Capability: 4A
C0068 Wide Supply Range: 16V – 60V
C0068 Internal Output Protection Diodes
C0068 94dB Ripple Rejection
Applications:
C0068 High Performance Audio Systems
C0068 Bridge Amplifiers
C0068 Stereo Phonographs
C0068 Servo Amplifiers
C0068 Instrument Systems
Absolute Maximum Ratings: (Note 1)
Supply Voltage, V
CC
60V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Voltage, V
I
–V
EE
to V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation (Note 2), P
D
30W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opr
0° to +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
–65° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Junction Temperature, T
J
150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead Temperature (During Soldering, 10sec), T
L
+260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance, Junction–to–Case, R
thJC
3°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance, Junction–to–Ambient, R
thJA
73°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Note 1. “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur.
Operating ratings indicate conditions for which the device is functional, but do not guarantee
specific performance limits.
Note 2. Assumes T
TAB
equals 60°C max. For operation at higher tab temperature and at ambient
temperatures greater than 25°C, the NTE7143 must be derated based on a maximum 150°C
junction temperatur. Thermal resistance depends upon device mounting techniques. R
thJC
is typically 2°C/W.