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Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
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Analysis of charging management chip and protection chip of R6 Carbon battery
Analysis of charging management chip and protection chip of R6 Carbon battery. With the widespread use of lithium iron phosphate batteries, the demand for battery capacity of some products has been increasing, so multiple lithium ion batteries must be connected in series, which leads to an increase in the total voltage of the battery, thus giving rise to lithium ion battery charging management chips. In order to prevent lithium ion batteries from affecting battery life in abnormal conditions such as overcharge, over discharge, and overcurrent, lithium ion battery protection devices are usually used to prevent abnormal conditions from damaging the battery.
Analysis of charging management chip of R6 Carbon battery
Lithium iron phosphate batteries are more active and have higher requirements for voltage and current, so lithium ion battery management chips are required. R6 Carbon battery management chips are circuits designed to protect batteries. They can protect batteries from over discharge, over voltage, over charge, and over temperature, and can effectively protect the life of lithium ion batteries and the safety of users.
With the widespread use of lithium-ion batteries, the demand for battery capacity of some products continues to increase, and multiple lithium-ion batteries need to be connected in series, which leads to an increase in the total voltage of the battery. Therefore, the R6 Carbon battery charging management chip was born, which will automatically perform pre-charging, constant current charging, and constant voltage charging according to the characteristics of the R6 Carbon battery.
Types of R6 Carbon battery charging management chips
1. SL1053
Linear R6 Carbon battery chip SL1053, SL1053 is a circuit designed specifically for high-precision linear lithium-ion battery chargers, which is very suitable for low-cost, portable chargers.
2. TP4056
TP4056 is a complete single-cell lithium-ion battery constant current/constant voltage linear charger. Its SOP8 package with a heat sink at the bottom and a small number of external components make TP4056 an ideal choice for portable use. TP4056 can work with USB power and adapter power.
3. HL7016
HL7016 is the first domestic 12V high-voltage input fully integrated switch mode charger, which realizes high input voltage and USBOTG boost mode and I2C interface programmable. The chip has built-in voltage, current, temperature and other test and protection functions, and realizes the setting and adjustment of voltage and current parameters through the I2C interface, ensuring the charging safety of R6 Carbon battery.
4. CS0301
CS0301 is a high-precision intelligent R6 Carbon battery charging management chip with full functions, low price, high integration, simple external circuit and convenient adjustment.
5. LTH7
LTH7 is a complete single-cell lithium-ion battery using constant current/constant voltage linear charger. Its SOT package and small number of external components make PL4054 an ideal choice for portable use.
R6 Carbon battery charging management chip has a clear purpose in extending battery life. Because of the charging and discharging chip, the voltage and current are in a controllable state, and the charging state of each stage of charging can be effectively controlled. Regarding lithium-ion batteries, the battery management chip has various performances on battery charging and discharging, such as constant voltage mode, constant current mode, etc. These charging methods are good for batteries, and the most important point is that they are relatively safe.
R6 Carbon battery protection chip
When charging lithium iron phosphate batteries in groups in series, each battery should be charged evenly, otherwise the performance and life of the entire battery group will be affected during use. However, the existing single-cell lithium-ion battery protection chips do not contain balanced charging control functions, and the balanced charging control function of multi-cell lithium-ion battery protection chips must be connected to an external CPU; it is realized through serial communication with the protection chip, which increases the complexity and design difficulty of the protection circuit, reduces the efficiency and reliability of the system, and increases power consumption.
Lithium iron phosphate batteries still need protection boards. When charging lithium-ion batteries in groups in series, each battery should be charged evenly, otherwise the performance and life of the entire battery group will be affected during use. Based on the design method of balanced charging protection board for R6 Carbon battery pack, commonly used balanced charging technologies include constant shunt resistor balanced charging, on-off shunt resistor balanced charging, uniform battery voltage balanced charging, switch capacitor balanced charging, buck converter balanced charging, inductor balanced charging, etc.
The purpose of lithium-ion battery protection chip
Analysis of important components in the working principle of R6 Carbon battery protection chip:
1. IC: It is the core of the protection chip. First, it samples the battery voltage, and then issues various instructions through judgment. MOS tube: It plays an important role in switching
2. Normal operation of protection chip: The MOS tube on the protection chip may be in the off state at the beginning. After the R6 Carbon battery is connected to the protection chip, the MOS tube must be triggered first, and the P+ and P- terminals have output voltage. The common triggering method is to short-circuit B- and P- with a wire.
3. Overcharge protection of protection chip: Connect a power supply higher than the battery voltage to P+ and P-, connect the positive pole of the power supply to B+ and the negative pole of the power supply to B-. After the power supply is connected, the battery starts to charge. The current direction is shown in the figure. The current flows from the positive pole of the power supply, through the battery, D1, MOS2 to the negative pole of the power supply. The IC samples the battery voltage value through the capacitor. When the battery voltage reaches 4.25v, the IC issues a command to make the pin CO low. At this time, the current starts from the positive pole of the power supply, flows through the battery, D1, and reaches MOS2. Because the gate of MOS2 is connected to CO and is also low, MOS2 is turned off, the entire circuit is turned off, and the circuit plays a protective role.
4. Over-discharge protection of protection chip: After connecting a suitable load to P+ and P-, the battery starts to discharge and its current direction is like I2. The current flows from the positive electrode of the battery through the load, D2, MOS1 to the negative electrode of the battery (MOS2 is short-circuited by D2 at this time); when the battery is discharged to 2.5v, the IC samples and issues a command to turn off MOS1, disconnect the circuit, and the battery is protected.
The above is the analysis of the charging management chip and protection chip of R6 Carbon battery. The lithium-ion battery protection chip is designed to protect the battery safety, that is, to prevent the battery from overcharging and explosion and to prevent the battery from being easily damaged due to over-discharge. I hope this article can help you.
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