NTE NTE1389 Datasheet

NTE1389

Integrated Circuit

Dual, Audio Power Amplifier, 20W

Description:

the NTE1389 is an audio power amplifier in a 12–Lead SIP type package specifically designed for
car stereo applications. Typically, it provides 23W output power at 14.4V and 20W at 13.2V on a 4
Ohm load.

This device can be used without capacitors because it incorporates the original short circuit protection
which protects output power transistors and a speaker at the same time when the output terminal is
shorted to ground.

Features:

D Can be used as OCL Connection
D Very Low Output Offset Voltage
D High Output Power
D Very Low Distortion
D Very Low Number of External Low Size Components, Very Simple Mounting System with no

Electrical isolation Between the package and the Heat Sink

D Low Thermal Resistance
D Provides the Following Protective Circuits:

Load Dump Protection
Output Thermal Short Circuit Protection
Thermal Shutdown Protection
Speaker Protection

Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)

Supply Voltage (Note 1), VCCsurge 40V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Quiescent Supply Voltage (Note 2), V
Operational Supply Voltage, V

CC2

CC1

Peak Circuit Current, ICCpeak 4.5A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

package Dissipation, P
Operating Temperature Range (Note 2), T
Storage Temperature Range, T

Note 1. Pulse Width = 200ms, T
Note 2. Using an aluminum heat sink, R

D

–30° to +75°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–55° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

stg

≥ 1ms.

rise

opr

= 4°C/W.

thCA

25V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Recommended Operating Conditions: (TA = +25°C unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Supply Voltage Range V
Load Impedance R

CC

L

9.5 – 16 V

3.2 – 16 Ω

Electrical Characteristics: (TA = +25°C, VCC = 13.2V, RL = 4Ω, f = 1kHz unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Quiescent Current I
Output Offset Voltage V

CC

offsetvin

Output Power P

Voltage Gain A
Total Harmonic Distortion THD PO = 2W – 0.15 1.0 %
Output Noise Level v
Supply Voltage Rejection Ratio SVRR RG = 0, f
Input Resistance R
Rolloff Frequency, High f
Rolloff Frequency, Low f

vin = 0 – 90 180 mA

= 0 – – ±150 mV

VCC = 14.4V THD = 10% – 23 – W

O

VCC = 13.2V THD = 10% 16 20 – W
Vin = 2.45mV 53 55 56 dB

V

RG = 0, BW = 20Hz to 20kHz – 0.65 – mV

n

= 100Hz, v

ripple

i

Av = –3dB from 1kHz Ref. – 90 – kHz

H

L

= 0.5V – 45 – dB

ripple

– 45 – kΩ

– 15 – Hz

Pin Connection Diagram

(Front View)

12
11 Output 1
10

9
8
7
6
5
4
3
2
1

GND

Feedback
V

CC

47µF Cap
(+) Input 2
(+) Input 1
(–) Input 1
(–) Input 2

Bypass
Feedback
Output 2