S-8254AAWFT-TB-G

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Not For New Designs
Moisture Sensitivity Level (MSL):	--
Function:	Battery Protection
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	3 ~ 4
Fault Protection:	Over Current
Interface:	--
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	16-TSSOP

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S-8254AAWFT-TB-G application field and working principle

Introduction

A Panasonic S-8254AAWFT-TB-G (hereinafter “the device”) is a type of power management IC (PMIC) designed for use in mobile applications. This device is a multi-functional DC-DC converter that integrates a buck-boost converter, load switch, and load current detector in a single package, making it extremely well suited for battery management applications. In this article, we will discuss the application field of the device and its working principle.

Application Field

The device is primarily designed to handle the battery management requirements of mobile devices. It can be used to handle power input and output, recharge Lithium-Ion batteries, and enable over-voltage, over-current, over-temperature and under-voltage protection for battery powered devices. It can also be used to drive LEDs, and to supply power to standby systems. The device is well suited for low-voltage applications, and can be used in industrial, medical, and consumer applications. Its low power silicon process ensures that it is power efficient and conserves energy, making it ideal for battery powered applications. Its ease of use and flexibility make it one of the most popular solutions for battery management applications. In addition to its use in battery management applications, the device can also be used for other power management tasks such as over/under voltage detection, power control, and power distribution in applications such as computers, industrial equipment, and electronic vehicles.

Working Principle

The device operates on the “buck-boost” principle. This principle works by increasing or decreasing the voltage supplied to the load in order to maintain a pre-set voltage level. When the output voltage drops below the pre-set level, the device increases the input voltage to the load, and when the output voltage rises above the pre-set level, the device decreases the input voltage to the load. This helps to maintain a constant voltage to the device and ensures that the load is protected against over-voltage and under-voltage conditions. The device incorporates a shunt element that works in conjunction with a comparator circuit to detect load current. When the load current goes above a pre-set level, the shunt element will activate the comparator circuit which in turn will activate the over-current protection circuit. This is an important feature of the device as it provides additional protection against over-current conditions.The device also has two enable pins which allow the user to enable or disable the device manually. These enable pins can be used to power the device on or off, or to enable or disable certain functions. The device also incorporates an on-board microcontroller which allows the user to set the voltage regulation range and set over-voltage, over-current, over-temperature and under-voltage protection levels.

Conclusion

The S-8254AAWFT-TB-G is a versatile power management IC which is suitable for use in mobile applications such as battery management, over/under voltage detection, power control, and power distribution. It operates on the “buck-boost” principle to maintain a pre-set voltage level, and incorporates a shunt element and a microcontroller to provide further protection against over-voltage, over-current, over-temperature and under-voltage conditions. It is an extremely flexible and power efficient solution for battery management applications.

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