Torex Semiconductor Co., Ltd. (Managing Director of Chuo-ku, Tokyo, Japan: Koji Shibamiya Daiichi Tokyo Stock Exchange: 6616, hereinafter referred to as "Torex" ) Developed the battery-specific charging regulator IC XC6240 and battery voltage monitoring IC XC6140 that support CV (constant voltage) charging.

In recent years, various batteries such as semi-solid batteries and all-solid batteries are being developed, and among these batteries are CV (constant voltage) charging type batteries. This time, Torex has developed a charging regulator IC and a battery voltage monitoring IC for constant voltage (CV) charging of 2.3V series lithium secondary batteries.

The charging regulator IC can meet the voltage requirement of the charging voltage of 2.3V lithium secondary battery, and can output the charging voltage that does not exceed the upper limit of the secondary battery even if the deviation is considered. It also suppresses the sink current flowing from the secondary battery to the charging IC when it is not charging, which greatly contributes to extending the battery driving time.

The battery voltage monitoring IC sets the detection voltage and release voltage suitable for the battery characteristics of the 2.3V series lithium secondary battery. The detection voltage can be selected from 1.6V to 2.2V according to the application and the internal resistance of the battery. The release voltage is fixed at 2.475V, which is the release voltage when the charging regulator starts charging.

In addition to small low-profile packages (XC6240: USPN-4, USP-6B06 / XC6140: USPQ-4B05), the packages of the two products are also prepared SSOT-24, which can be Mounted on equipment that is compact, low-profile, and used for various purposes.