Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Function:	Multi-Function Controller
Battery Chemistry:	Multi-Chemistry
Number of Cells:	1 ~ 10
Fault Protection:	Over/Under Voltage
Interface:	I²C
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	38-WFQFN Exposed Pad
Supplier Device Package:	38-QFN (5x7)
Base Part Number:	LTC4110

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Introduction

Power management ICs (PMICs) are integrated control circuitry that allows for advanced control of power supply systems. PMICs are increasingly used across numerous industries to increase device efficiency and optimize specific application needs. There are numerous types of PMICs available depending on the specific application needs. One of the most common types is a battery management IC (BMC). The LTC4110EUHF#TRPBF is a BMC specifically designed to enable prolonged runtime and advanced safety features. This article will delve into the application field and workings of the LTC4110EUHF#TRPBF BMC in PMIC systems.

Application Field

The LTC4110EUHF#TRPBF BMC is designed for a variety of applications such as over-discharge protection and boost/buck control for two and three-cells Li-Ion/Polymer battery packs. It is capable of providing reliable over-discharge protection for packs up to 24V with more than 14000mA of maximum discharge current. It is also used in converters, SOIC-12 package and provides precise charging current and voltage regulation.In addition, the LTC4110EUHF#TRPBF BMC can be used for temperature-controlled heat dissipation for Li-Ion/Polymer battery packs in applications such as computers, portable electronic devices, power tools and more. The BMC is also capable of providing power-saving features such as sleep and hibernate modes. Furthermore, the device is suitable for lithium-ion battery packs with an encapsulated or stand-alone cell.The LTC4110EUHF#TRPBF BMC is also designed for safety testing requirements. It provides an accurate, highly-determined battery-discharge state and cumulative charge-discharge duration. This data is used to determine the probable causes of issues and improve safety features, as well as to maximize battery cycle life.

Working Principle

The LTC4110EUHF#TRPBF BMC works on the principle of continual measurement and regulation of the voltage on the voltage rail and the discharge current from the battery. The BMC continuously measures and adjusts the current and voltage levels, keeping them within a predetermined range.The BMC contains an over-voltage circuit which protects the battery cells from overcharging and ensures that the charge current settings are maintained within safe levels. It also includes a discharge rate limiter which limits the rate of discharge from the battery cells.The LTC4110EUHF#TRPBF BMC also contains an integrated boost/buck controller with Low Voltage Disconnect (LVD) functionality. It integrates both a discharge rate limiter and an over-temperature protection circuit. In addition, the BMC utilizes a tested loop filtration method to maintain constant LVD settings over time.The Power Management IC has a number of features which provide enhanced safety and higher efficiency. These features include a wake-up power source and an over-voltage circuit with thermal overload protection. The BMC also incorporates a temperature sensor that is used to detect over-temperature conditions in order to voluntarily shut down the system when necessary.

Conclusion

The LTC4110EUHF#TRPBF is a BMC specifically designed for battery management applications in PMIC systems. It is capable of providing reliable over-discharge protection for packs up to 24V with more than 14000mA of maximum discharge current. In addition, the device can be used for temperature-controlled heat dissipation for Li-Ion/Polymer battery packs. Furthermore, the BMC provides enhanced safety and higher efficiency with features such as a wake-up power source and an over-voltage circuit with thermal overload protection. The LTC4110EUHF#TRPBF is designed to enable prolonged runtime and advanced safety features in PMIC systems.

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