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LM389

Features: Battery operationMinimum external partsWide supply voltage rangeLow quiescent current drainVoltage gains from 20 to 200Ground referenced inputSelf-centering output quiescent voltageLow distortionOperation from 1 mA to 25 mAFrequency range from DC to 100 MHzExcellent matchingApplicationAM...

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SeekIC No. : 004395505 Detail

LM389: Features: Battery operationMinimum external partsWide supply voltage rangeLow quiescent current drainVoltage gains from 20 to 200Ground referenced inputSelf-centering output quiescent voltageLow dis...

LM389 Data Sheet

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Part Number:
LM389
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

Battery operation
Minimum external parts
Wide supply voltage range
Low quiescent current drain
Voltage gains from 20 to 200
Ground referenced input
Self-centering output quiescent voltage
Low distortion
Operation from 1 mA to 25 mA
Frequency range from DC to 100 MHz
Excellent matching


Application

AM-FM radios
Portable tape recorders
Intercoms
Toys and games
Walkie-talkies
Portable phonographs
Power converters


Pinout

Connection Diagram


Specifications

Supply Voltage                                                                   15V
Package Dissipation (Note 1)                                         1.89W
Input Voltage                                                                  ±0.4V
Storage Temperature                                     -65 to +150
Operating Temperature                                       0 to +70
Junction Temperature                                                    150
Lead Temperature (Soldering, 10 sec.)                         260
Collector to Emitter Voltage, VCEO                                    12V
Collector to Base Voltage, VCBO                                       15V
Collector to Substrate Voltage, VCIO
                           (Note 2)                                                 15V
Collector Current, IC                                                     25 mA
Emitter Current, IE                                                        25 mA
Base Current, IB                                                              5 mA
Power Dissipation (Each Transistor) TA  +70ßC        150 mW
Thermal Resistance
                   JC                                                            24/W
                   JA                                                            70/W


Description

The LM389 is an array of three NPN transistors on the same substrate with an audio power amplifier similar to the LM386.

The amplifier inputs are ground referenced while the output is automatically biased to one half the supply voltage. The gain is internally set at 20 to minimize external parts, but the addition of an external resistor and capacitor between pins 4 and 12 will increase the gain to any value up to 200.

The three transistors have high gain and excellent matching characteristics. They are well suited to a wide variety of applications in DC through VHF systems.




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