Analysis of nine commonly used lithium battery charging processing chips

What is a lithium battery charging processing chip? There are too many types of chips. The following author sorts out nine commonly used lithium battery charging processing chips for you. 1, SL1053 linear lithium battery chip SL1053 is a circuit designed for high-precision linear lithium battery chargers, suitable for low-cost portable chargers. The linear lithium battery charging chip SL1053 is a charging chip that integrates high-precision pre-charging, stable current charging, stable voltage charging, battery status detection, temperature monitoring, low leakage at the end of charging, and charging status indication. It can be widely used PDAs, mobile phones, handheld devices and other fields. 2, TP4056TP4056 is a safe current/voltage linear charger for a single lithium battery. The bottom of the SOP8 package has a heat sink and a small number of external components, making the TP4056 an ideal choice for portable applications. TP4056 is suitable for USB power supply and adapter power supply. 3. HL7016 HL7016 is the first fully integrated 12V high voltage input switch charger in China, which has completed high input voltage and USBOTG boost mode, and the I2C interface is programmable. The chip has built-in voltage, current, temperature and other detection and protection functions. Set and adjust the voltage and current parameters through the I2C interface to ensure the safety of lithium battery charging. In addition, the chip also has a built-in battery activation function, which solves the system crash caused by a battery short circuit. Compared with the traditional charging method, the HL7016 charging method is adopted, and the charging time is shortened by more than half. 4. CS0301 CS0301 is a high-precision intelligent charging chip with complete functions, low price, high integration, simple external circuit, and convenient scheduling. 5. LTH7LTH7 (model: PL4054) is a complete single lithium battery with a linear safe current/safe voltage charger. Its SOT package and few external components make PL4054 an ideal choice for portable applications. 6, CH4054 CH4054 is a single lithium battery constant current/constant voltage linear charger, a simple external circuit is very suitable for portable devices, suitable for the operation of USB power and adapter power, internal use of reverse-reverse charging circuit, no external isolation diode. The thermal response can automatically schedule the charging current to constrain the chip temperature under high power operation or high ambient temperature conditions. 7.CN3052A high linear function lithium battery processing chip CN3052A/CN3052B/CN3056, these devices have integrated power tubes, no external current detection resistors and suppression diodes, as long as a few peripheral components, and meet the USB bus technical standards, can be lithium batteries Through the USB port, it is very suitable for a variety of chargers and MP4 players, Bluetooth headsets, digital cameras and other portable products. 8SMC401. The charging of SMC401 is divided into three stages: pre-charging, constant current charging and constant voltage charging. (1) After installing the battery and adding power in the prefilling phase, SMC401 should first check whether the battery temperature is in the setting method. If it is abnormal, it enters the temperature defect mode. Otherwise, the battery voltage VBAT will be detected. (2) Constant current charging stage When the battery is charged or the battery voltage VBAT is higher than VLOW and lower than VMAX, SMC401 enters the constant current charging state. At this time, the charging current is monitored by the voltage drop on the external sensing resistor. (3) Constant voltage charging stage When the battery voltage VBAT reaches VMAX, it enters the constant voltage charging state. In the entire operating temperature and operating voltage planning, the constant voltage accuracy is higher than ±1%. When the charging current reaches the stop threshold ILOW, the charging is stopped; when the battery voltage is lower than the starting threshold voltage VMAX, the initial constant voltage charging is automatically started. 9TP4057. TP4057 is a single lithium battery charger without any defects. Equipped with reverse connection protection of positive and negative batteries, and adopts stable current/stable voltage linear control. Its SOT package with a small number of external components makes the TP4057 portable application an ideal choice. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: Analysis of the composition and structure of lithium titanate batteries