Protect the chip to make it work normally. The protection chip works normally: the MOS tube on the protection chip can be turned off at first. After the battery is connected to the protection chip, the MOS tube must be triggered first, so that the P+ and P- terminals can output. tension. The common trigger method is to use a wire so that B- and P- are shorted. In the design process of the lithium battery PACK, the corresponding lithium battery protection board or BMS, and even various communication protocols should be used.
The difference is:
The 8254 is a protection IC specially designed for 3 and 4 string batteries, while the 8261 only supports battery protection. batteries only single string if used. for multiple channels, you need to build your own circuit, strict circuit skillsModeling and electricity are required during the construction process.
8254 has a very mature protection circuit for string and 4-string batteries. As long as you build the circuit according to specifications there will be no problems. Battery chatter is not necessarily due to over-discharging.
"Lithium battery" is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses non-aqueous electrolyte solution. Lithium metal batteries were first proposed and studied by Gilbert N. Lewis in 1912. In the 1970s, M. S. Whittingham proposed and began studying lithium-ion batteries. Since the chemical properties of lithium metal are very active, the processing, storage and use of lithium metal are subject to very high environmental requirements. Therefore, lithium batterieshave not been used for a long time. With the development of science and technology, lithium batteries have now become mainstream.