NTE7143 查看數據表（PDF） - NTE Electronics

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NTE7143

Integrated Circuit Audio Power Amplifier, 20W

NTE Electronics 

Electrical Characteristics: VCC = +25V, –VEE = –25V, TA = +25°C, RL = 8Ω, AV = 20 (26dB),

fo = 1kHz unless otherwise specified)

Parameter

Test Conditions

Typ Tested Limits Unit

Supply Current

POUT = 0W

70

100

mA

Output Power

THD = 1%, Note 3

25

–

W

Total Harmonic Distortion

Offset Voltage

POUT = 20W, fo = 1kHz, Note 3

0.015

–

%

POUT = 20W, fo = 20kHz, Note 3

0.05

0.4

%

POUT = 20W, RL = 4Ω, fo = 1kHz, Note 3 0.022

–

%

POUT = 20W, RL = 4Ω, fo = 20kHz, Note 3 0.07

0.6

%

±1

±15

mV

Input Bias Current

±0.2

±2

µA

Input Offset Current

0

±0.5

µA

Gain–Bandwidth Product

fo = 20kHz

5.5

–

MHz

Open Loop gain

DC

90

–

dB

PSRR

Max. Slew rate

VCC, 1kHz, 1Vrms

VEE, 1kHz, 1Vrms

20W, 8Ω, 70kHz BW

95

52

dB

83

52

dB

8

–

V/µs

Current Limit

Equivalent Input Noise Voltage

VOUT = VSUPPLY –10V

RS = 600Ω, CCIR

4

3

A

3

–

µVrms

Note 3. Assumes the use of a heat sink having a thermal resistance of 1°C/W and no insulator with

an ambient temperature of 25°C. Because the output limiting circuitry has a negative temper-

ature coefficient, the maximum output power delivered to a 4Ω load may be slightly reduced

when the tab temperature exceeds 55°C.

Pin Connection Diagram

(Front View)

.114 (2.9)

.896

(22.76)

Max

.408 (10.37

Max

0.45 (1.37)

Max

.619

(15.72)

Max

.364

(9.25)

Max

.850

(21.6)

Max

(+) Input

(–) Input

VCC

Output

–VEE

.135 (3.45)

1

.150 (3.81)

35

24

.182 (4.62) Max

.182

(4.62)

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