LT8584EFE#TRPBF

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Power management ICs (PMICs) are essential components for modern portable electronic devices because of their ability to regulate and control power management systems. Among them, battery management PMICs are critical components to ensure safe and efficient power supply for a wide range of applications in smartphones, laptops and other portable electronic devices. LT8584EFE#TRPBF is an advanced battery management PMIC fabricated with low power CMOS process, designed to manage the battery charging, discharging and protecting in Lithium-ion batteries.

Function Overview

The LT8584EFE#TRPBF is a highly integrated battery management device designed to meet the requirements of lithium-ion battery with high accuracy. It provides very precise voltage setting for the battery charging, discharging and protecting operations. It integrates an isolated driver for easy signal connection and current measurement. The LT8584EFE#TRPBF includes a constant current/ constant voltage (CC/CV) fast charging state machine, Guaranteed maximum charge time, selectable charging and discharging parameters, battery pack voltage monitoring, state-of-charge (SOC) and state-of-health (SOH) monitoring with sleep mode and wake up operation. The device also has an internal temperature sensor for temperature monitoring and protection. It has a hot swapping capability to use with parallel connection of battery protection ICs.

Applications

The LT8584EFE#TRPBF is designed to give the user flexibility in the design of their power management systems. It is primarily used in high-end mobile phones as well as tablet computers and notebook PCs. The device is also used in automotive applications such as battery monitoring systems, power management systems and power distribution systems. Furthermore, the device is also used in industrial applications, portable medical devices, wearables and remote sensors.

Working Principle

The LT8584EFE#TRPBF is a digital device that controls the charging, discharging and protecting of a battery pack. The device is connected to each cell in the battery pack and measures the voltage and temperature of each cell. The device then uses these values to determine the state-of-charge (SOC) and state-of-health (SOH). The device is capable of detecting open and shorted cells and can take corrective action, such as shut down the pack or supply overvoltage or undervoltage protection. It can set the appropriate current and voltage limits for each cell to ensure safe and efficient operation.

The device is capable of controlling the charging and discharging of batteries with various charge profiles. During charging, the device allows the user to set multiple profiles such as constant current/ constant voltage, constant voltage/ constant current, etc. It is also capable of stopping the charging process when the battery reaches the set voltage, current or time limit. During discharging, the device monitors the cell\'s voltage and limits the current flow to maintain the specified voltage.

The LT8584EFE#TRPBF features an advanced protection scheme to protect the battery cells from overcharging and short-circuits. The device also has an integrated temperature sensor to monitor the battery cell temperature and shut down the pack if the temperature exceeds the specified limit. In addition, the device can be used with parallel connection of other battery protection ICs for hot swapping capability.

Conclusion

The LT8584EFE#TRPBF is an advanced battery management IC designed to manage the battery charging, discharging and protection. The device provides high accuracy regulation and control of the power management system. It is suitable for use in a wide range of applications including high-end mobile phones, tablet computers, notebook PCs, automotive systems, industrial applications, wearable and remote sensors. The device provides advanced protection schemes to ensure safe and efficient operation. Furthermore, it can be used with parallel connection of other battery protection ICs for hot swapping capability.

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