Audio Amplifier IC List with Part Number and Features

Here, is the list of audio amplifier IC with part numbers and features,

• LM377 - 2 Watt Dual Audio Power Amplifier
• LM378 - 4 Watt Dual Audio Power Amplifier
• LM379 - 6 Watt Dual Audio Power Amplifier
• LM383/LM2002 - 8 Watt Dual Audio Power Amplifier
• CD4440/LA4440 - Dual Channel Stereo Amplifier (operating voltage 12-18V, Power 6W to 19W)
• LM1875 - 20 Watt Audio Power Amplifier
• LM3875 - 56 Watt High-Performance Audio Power Amplifier
• LM3886 -  68 Watt High-Performance Audio Power Amplifier
• TdA2030/TdA2030A - 18 Wat HiFi Audio Amplifier

You can download the below image to see the audio amplifier IC list and features,

**for more information you should read the datasheets with respective part numbers**

LM377

LM377 is a dual power amplifier that delivers 2 watts per channel into 8ohm and 16ohm loads. The main features of LM377 audio amplifier IC are,

1. 10-26V operating voltage
2. 3 Mega Ohm Input Impedance
3. 70dB ripple rejection
4. Internal Stabilization
5. Internal Current Limiting
6. Internal Thermal Protection
7. 2 Watt per channel

LM377 ISs are used in AM and FM Radio Receivers, Tape Recorders, MP3 Players, Servo Amplifiers, etc.

**LM 378 and LM379, LM383 are almost same just the difference is output power. For more information read the datasheets**

CD4440/LA4440

It is a stereotype dual channel audio amplifier IC. It provides 6W output in Dual Mode and 19W output in Bridge Mode.

Specification and Features

• General Supply voltage: 13.2V
• Maximum operating voltage: 18V
• Acceptable Surge supply voltage: 50V
• Normally allowable power dissipation: 15W
• Output Power Delevering
  • Dual-mode: 6W
  • Bridge mode: 19W
• Ripple rejection ratio: 46dB
• Quiescent current: 100 to 200mA
• Operating temperature for this IC: -20°C to 75°C
• Inbuilt Over Power Protection
• Very Good Ripple Rejection
• Small Residual Noise

LM1875

It is a class AB Audio Amplifier that can deliver output power up to 20 watts into a 4 ohm or 8-ohm speaker with a maximum current of 4A.

Specification and Features

• General Operating Voltage: 16V to 60V
• Output: 20Watts with 4Ω/8 Ω speaker
• Maximum Output Current: 4A
• Open Loop Gain Gain: 90dB
• Bandwidth: 70KHz
• Internal Short circuit and thermal protection are available
• This IC is Breadboard friendly
• Available in a 5-pin TO220 package
• Used for Audio signal Amplification
• It is suitable for high power amplification
• Capable of operating on dual/split power supply
• It can be used to cascade audio speakers

TdA2030/TdA2030A

It is a very powerful audio amplifier IC. Generally, it provides 18 Watt output power but it can be used up to 20Watt power. So it can be used to run a 4-ohm speaker at 12Watt and an 8-ohm speaker at 8 watts.

Specification and Features

• Low-frequency class AB amplifier most suited for audio amplification
• It can provide up to 20 Watts as output power
• Wide range of power supplies from 6V to 36V
• Internal Short circuit and thermal protection are available
• Breadboard friendly
• Available in a 5-pin TO220 package
• High-Performance Class AB Amplifier
• High Output Current
• Low Harmonic and Crossover Distortion
• Short Circuit Protection
• Thermal Shutdown

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