Subwoofer made using LM3886 ----- LM3886 Amplifier

LM3886TF is a new type of high-power audio amplification integrated circuit introduced by NS, USA, which is a fully insulated package. Compared with LM1875T, its power is large, and the maximum reachable of 68W under rated operating voltage is 68W continuous average Power, the same relatively complete overvoltage overflow thermal protection function, the most valuable is that it has the function of automatic switching time, so that the speaker can work safely. Excellent performance of LM3886 makes it extensive application in recent years, and many finished amplifiers have direct applications to serve as post-level amplifiers or use it as heavy and low-speed circuits. The new high-fidelity audio integrated circuit LM3886TF launched by US NS (National Semiconductor Co., Ltd.) is used to amplify, and the NE5532 or AD827 is used as a pre-line amplification and tone amplification. Its characteristics are: output power (continuous output power 68W), distortion (total distortion plus noise. 1881.003%), protection function (including overpressure protection, overheating protection, current limit, temperature limit, switch power Speaker impact protection, static noise function) complete, less peripheral components, easy to make debugging, stable and reliable. Since it is simple, applicable, it is especially suitable for the production of enthusiasts and electronic enthusiasts. The electrical parameters of the LM3886TF are as follows: LM3886 can reach the continuous average power of 68W when VCC = VEE = 28V, 4 Euro load, and can reach average power at VCC = VEE = 35V and 8 Euro load. With a wide power supply voltage range VCC + VEE is 20V-94V; Total Harmonic distortion + noise: 60W 20Hz conversion rate (SLEW RATE): VIN = 2.0Vp-p, Trise = 2NS value is 19V / US total static Current: 50mA input bias: 0.2ua gain bandwidth product: 8 MHz LM3886 definition LM3886 typical application circuit An example of the actual application circuit of LM3886

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