Lithium battery protection board specially designed for lithium phosphate, ternary lithium battery, lithium cobalt oxide, and lithium manganate battery packs.
Adopt mature protection circuit, IC and support disconnection protection, imported high-current internal resistance MOS (single MOS internal resistance 3 milliohms), with complete and stable charging and discharging various protection functions, battery core hardware balancing processing, balancing current Appropriate, balanced heating is reasonable and does not affect battery pack performance.
Output current: 80A for separate port; 60A for same port
We have protective boards with two parameters: lithium iron phosphate and polymer. If your battery is lithium iron phosphate with a nominal 3.2V single cell, you need to select lithium iron phosphate 3.2V in the category. If it is polymer (ternary) , cobalt acid, lithium manganate battery) single battery nominal 3.6V (or 3.7V) please choose the polymer 3.7V classification.
Its work is characterized by side refrigeration and side fever
Hot and cold on both sides of the temperature difference of 68 degrees
Connected to the 12-volt power supply cooling piece on both sides there will be difference in temperature, side cold side of the heat, do not long power cooler radiator, otherwise it will cause cooler internal overheating and burning
These devices must be used in conjunction with a heat sink to avoid burned
Pure black and gold plated circuit board, imported KEMET audio capacitors, high capacity filter capacitors per channel. Special order pure black copper terminals, gold plated audio input terminals
Protection: power input reversal protection, short circuit, overheating, over EMI
Low quiescent current, noise suppression
External amplifier type selection function (MODE: high level class D, low level class AB, factory default high level)
External shutdown (SD: chip shutdown at low level, factory default high level)
External mute (MUTE: low level mute, factory default high level)
PAM8403 is a small digital amplifier chip, high-definition sound quality highlights the advantages of digital chips
Circuit using a reasonable peripheral configuration, power supply filter upgrade to 470uf, 1.6mm fiberglass plate, the amplifier board to do the meticulous
Output 3W + 3W high-fidelity sound quality, potentiometer using the original anti-surface body, life expectancy of up to 15 years, potentiometer with a switch can be counterclockwise directly cut off the power supply.
Please ensure that the power supply voltage does not exceed 5.5V, and please do not reverse the positive (+) negative (-) polarity, otherwise it will burn the circuit board!
Size: with potentiometer about 29.5 x 20.2 x 15 mm, module about 21 x 18 mm