IP2325-3S can be used for 3 series of lithium battery charge management, ip2325 was originally used for 2 battery management chip, but can be customized function, model IP2325-3S, 3S means 3 batteries.
What are the functions of IP2326 charge management chip? IP2326 has input voltage limiting function, can intelligently adjust the charging current,Adaptive adapter load. The IP2326 supports external pins to select whether to set up 2-string or 3-string lithium battery charging.
First, the adapter voltage is definitely larger. Second, you can't plug the output of the adapter directly into the battery, it will overcharge or the current is too large, which will cause danger. Third, and the most important, the adapter comes out with a constant current and constant voltage plate to charge the battery. When it's full, it automatically cuts off power and can limit the current while charging.
Three sections can be connected in series. Lithium battery nominal 7V, fully charged 2V, generally used to 3V is regarded as air power. Due to lithium goldThe chemical characteristics of the genus are very active, which makes the processing, preservation and use of lithium metal very high environmental requirements. With the development of science and technology, lithium batteries have become the mainstream. The purchase method of lithium battery is not marked with a clear capacity.
drop) pressure plate power supply, the efficiency is better, so it is suitable for parallel, for each battery is separately configured with a 3 amp protection board and then parallel, and then the lithium battery charging board can be charged. However, if the voltage of the appliance is high, it is suitable for series power supply, first configure a separate protection board for each battery, and then use three series of protection boards on the line, if the battery is not protectedBoard, you need to use a balancing function of the protection board.
1, can use LDO buck and diode series buck. However, if the voltage is stable lithium charge management chip , then lithium charge management chip , using LDO buck is the first choice, diode buck lithium charge management chip method varies greatly, on the one hand, because the rated voltage of the lithium battery is 7V, but it is actually working between 6 and 2V, and on the other hand, the compression of the diode also changes with the current, only about 0.7V.
2, the battery is 7v720mAh, the charging circuit schematic diagram is as follows, constant current, limited voltage charging mode.
3, v lithium battery pack is designed according to the electricity parameters of the customer's smart water meter, and the capacity of 7500mAh is obtained by parallel connection of Japan's Sanyo 18650 lithium battery cell to meet the working time requirements of electrical appliances. 7vThe lithium battery pack has many advantages such as high output voltage, stable performance, high safety, small self-discharge and long cycle life.
4, introduction TDA2822 general integrated power amplifier circuit peripheral components are more and need a larger radiator. The power amplifier circuit introduced in this paper is simple and convenient to make. TDA2822 integrated power amplifier circuit is commonly used in walkman, portable DVD and other audio playback; The power is not very large, but it can meet your hearing requirements lithium charge management chip , and it has the characteristics of simple circuit, good sound quality, wide voltage range, etcRecommended 5V boost lithium battery charging IC
1, three lithium batteries in series 16V USB_5V input boost charge management IC. The FS4059C is suitable for 5V input boost charging 16V three-string lithium battery charging. FS4059C/FS4068 has input adaptive function lithium charge management chip , any kind of USB interface can be charged normally Lithium charge management chip , charging current 1A. Streamlined common ESOP8/SOP8 packaging and QFN4X4 package lithium charge management chip , also has NTC temperature control function. The input voltage tolerance of 18V is sufficient, safe and reliable.
2, FS4059D is a 5V input, support four lithium battery boost charge management IC. FS4059D built-in MOS tube, the use of asynchronous switching architecture, so that it needs only a few peripheral devices in the application, can effectively reduce the overall scheme size, reduce the BOM cost. The FS4059D's boost switch charging converter operates at 90% efficiency.
3, single battery boost lithium charge management chip : PW5100 This PW5100 booster IC is the ideal choice for lithium charge management chip you, it can adjust the voltage range of 3-5V to 5V, maximum efficiency of up to 95%, operating frequency of 2MHz, and static current of only 10uA. Its low power consumption makes it particularly useful in applications where high performance is required.
4, Zhenbang Micro Technology launched a new 3V 5V (AH6901) switching marketField 6291 booster chip, AH6901 is a small package (SOT23-6), CC (constant current) mode PWM boost IC, suitable for lithium battery (3 ~ 2V) output 5V 1A mobile power applications.