LM3886 HiFi TF Stereo Amplifier Assembled AMP Board 68W+68W 4ohm 50W*2 / 38W*2 8ohm

Specifications NS LM3886 is a mono audio power amplifier chip using an 11 foot TO 220 package the back of the TF suffix is ​​fully insulated package meant And compared to LM1875T LM3886 is more powerful at the rated working voltage up to 68W continuous average power without distortion also has a relatively perfect over voltage over current overheating protection function in addition it has a function of current anti switch automatically when shock the speaker may be possible to avoid current surge when the amplifier power is turned on causing injury LM3886 performance parameters VCC 28V OUTPUT 68W 4 38W 8VCC 35V OUTPUT 50W 8Peak power 135WSNR 92dbConversion rate 19V usIntermodulation distortion 0 04 Mute functionSPiKeTM protection The amplifier board has the following characteristics 1 Using double sided alignment careful layout signal input portion away from the output section 2 Part of the coupling capacitors for longer minimum pad 5mm the maximum suitable for the capacitor of 10mm 3 The input section added high pass circuit making the board more stable 4 The output part RL circuit inductance and resistance in parallel effective protection chip effectively preventing the induced electromotive force shutdown speaker damage to the chip Materials used 1 Sheet glass fiber 1 6 size 106 54mm chip pitch of 51mm Widening output section traces and left large electrical flow tin 2 LM3886 original disassemble is insulated vers