LA4108 2-Channel Power Amplifier 12V 45mA IC DIP-20

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LA4108 2-Channel Power Amplifier 12V 45mA IC DIP-20 The LA4108 is a 2-channel (stereo) audio power amplifier IC designed for delivering high-quality sound output in compact electronic systems. It is widely used in audio devices such as radios, cassette players, portable speakers, and DIY amplifier circuits. With its ability to deliver around 5W per channel, it provides sufficient power for small to medium audio applications while maintaining low distortion and stable performance. This IC features a wide operating voltage range and built-in protection circuits such as thermal shutdown, ensuring safe and reliable operation. It requires a minimal number of external components, making it easy to integrate into circuit designs. it’s also includes features like low noise, high ripple rejection, and reduced pop noise during power ON/OFF, making it suitable for high-quality audio amplification in both consumer and hobby electronics. Features: Dual-channel (stereo) audio amplifier. High output power capability. Low noise and low distortion. Built-in thermal shutdown protection. High ripple rejection for clean audio. Low pop noise during power ON/OFF. Minimal external components required. Suitable for battery-powered applications. Specifications: Parameter Value Model LA4108 Package Type DIP-20 Channels 2 (Stereo) Output Power ~5.3W per channel Supply Voltage Range 6V – 18V Recommended Voltage 12V Output Current (Peak) Up to 2.5A (per channel) Quiescent Current ~45mA Gain ~50 dB Load Impedance 3Ω Pinout: Pin No. Pin Name Description 1 IN1 Channel 1 audio input 2 NF1 Feedback pin for Channel 1 3 RF (Ripple Filter) Ripple filter connection for power supply noise reduction 4 PRE GND Pre-amplifier ground 5 OUT1 Channel 1 output 6 BOOT1 Bootstrap capacitor connection for Channel 1 7 VCC Positive power supply 8 PWR GND Power ground 9 BOOT2 Bootstrap capacitor connection for Channel 2 10 OUT2 Channel 2 output 11 THD Thermal shutdown control 12 MUTE Audio mute control pin 13 NF2 Feedback pin for Channel 2 14 IN2 Channel 2 audio input 15 PRE-DRIVE B2 Pre-driver base for Channel 2 16 PRE-DRIVE C2 Pre-driver collector for Channel 2 17 COMP2 Frequency compensation for Channel 2 18 COMP1 Frequency compensation for Channel 1 19 PRE-DRIVE B1 Pre-driver base for Channel 1 20 PRE-DRIVE C1 Pre-driver collector for Channel 1 Applications: Audio amplifiers. Portable speakers. Radios and cassette players. DIY audio projects. Home audio systems. Package Includes: 1x LA4108 2-Channel Power Amplifier 12V 45mA IC DIP-20. Documents: LA4108 Datasheet.