I think you are looking for a lithium battery protection IC manufacturer.
Front-line manufacturers include Japan's Seiko and Liguang, as well as Taiwan's Hongkang HYCON and Fujing.
The second level includes Fuman, BYD Micro, Zhongying, etc. locally produced.
Personally, I recommend products made in Taiwan, which are more cost-effective. If you only want low-end products, you can choose domestic products.
We are specialized in this type of protection IC.
TI and Seiko.
1. TI (Texas Instruments): TI is a semiconductor company headquartered in the United States, founded in 1930. TI's lithium battery protection chip has the characteristics of high precision, low power consumption and high reliability, and is widely used in mobile power supplies, power tools, smart homes andother areas. TI's lithium battery protection chip also supports a variety of battery types and battery configurations to meet the needs of different users.
2. Seiko (Seiko Electronics): Seiko is an electronics company headquartered in Japan, founded in 1942. Seiko's lithium battery protection chip has the characteristics of high precision, low power consumption and reliability high, and is widely used in smartphones, tablets, smart watches and other fields. Seiko's lithium battery protection chip also supports a variety of battery types and battery configurations. , can meet the needs of different users.