MAX1870AETJ+T

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Power management integrated circuits (PMICs) are rapidly becoming an indispensable part of electronic devices. Power management system technologies, which integrate protection, monitoring, measurement, and control functions into a single block, offer optimal design solutions to extend battery and device life while improving system reliability. One of the applications of PMIC is battery charging. MAX1870AETJ+T is a high power battery charging controller that is highly efficient and enables fast and accurate charge termination to extend the battery life. This article will provide an overview of this device, its application fields, and working principle.

General Overview of MAX1870AETJ+T

MAX1870AETJ+T is a high power battery charging controller that allows for fast and accurate charge termination for two- and three-wire chargers. It is designed for charging a variety of battery chemistries, such as Li-ion and Li-polymer, and it is capable of regulating charge voltage and current up to 7A. The device offers various battery charging modes including Constant Voltage(CV), Constant Current (CC), and Constant Voltage with Current Regulation (CvC), and also provides accurate charge termination, with selectable thresholds for under-voltage, over-voltage, and over-temperature conditions. In addition to charge termination, the device also integrates temperature monitoring and an LED indicator to display battery-charging status.

Application Fields of MAX1870AETJ+T

MAX1870AETJ+T is a high power battery charging controller that is suitable for a variety of application fields, including notebook PCs, netbooks,smartphones,portable music players,digital cameras,and other high power applications. In addition to the aforementioned applications, the device is also suitable for charging large capacity battery packs with multiple cells. Its high power rating of up to 7A allows the charger to efficiently charge large battery packs with minimal heat dissipation. The device also has a wide operating temperature range of -40°C to 105°C, making it ideal for a variety of industrial applications.

Working Principle of MAX1870AETJ+T

MAX1870AETJ+T is a power management integrated circuit (PMIC) that combines charge regulation, charge termination, and temperature monitoring in a single block. The device adopts a multiphase charging architecture to regulate the charging current and voltage. The device regulates current by sensing a voltage on the sense pin and compares it to an internal reference. The device then adjusts the charging current with an internal pulse width modulator (PWM) to maintain a constant voltage. During the charging process, MAX1870AETJ+T monitors temperature and also detects over-voltage and under-voltage conditions to provide accurate charge termination.

Once the device detects any abnormal condition, it will immediately cut off the connection between battery and charger, preventing the battery from being overcharged or discharged. The device also has an integrated LED indicator to communicate the charge status with the user and provides selectable charge termination thresholds for optimal charging performance. In addition, the device also offers a wide operating temperature range of -40°C to 105°C, allowing it to efficiently and reliably regulate charge conditions in a variety of hazardous or extreme temperature environments.

Conclusion

MAX1870AETJ+T is a high power battery charging controller that is suitable for a variety of applications, including notebook PCs,smartphones, and industrial applications. It is capable of regulating voltage and current up to 7A, and offers a wide operating temperature range of -40°C to 105°C. The device adopts a multiphase charging architecture, and also provides accurate charge termination, with selectable thresholds for under-voltage, over-voltage, and over-temperature conditions. In addition, the device also integrates temperature monitoring and an LED indicator to display battery-charging status. This makes MAX1870AETJ+T a robust and reliable solution for high power applications.

The specific data is subject to PDF, and the above content is for reference