LTC4079IDD#TRPBF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Battery Chemistry:	Multi-Chemistry
Number of Cells:	--
Current - Charging:	Constant - Programmable
Programmable Features:	Timer
Fault Protection:	--
Charge Current - Max:	250mA
Battery Pack Voltage:	--
Voltage - Supply (Max):	60V
Interface:	--
Operating Temperature:	-40°C ~ 125°C (TJ)
Package / Case:	10-WFDFN Exposed Pad
Supplier Device Package:	10-DFN (3x3)
Base Part Number:	LTC4079

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Introduction

LTC4079IDD#TRPBF is a battery charging solution for portable device applications. It is a member of the Linear Technology Power Management IC (PMIC) family and is specifically designed for lithium ion and lithium polymer battery charging. The device includes integrated circuitry to monitor the system battery voltage, control the battery\'s charge current and termination, and prevent an overcharge. It also includes battery temperature measurements, fault protection, and other useful features to maximize system performance and battery life.

Features

The LTC4079IDD#TRPBF has a number of features that make it ideal for battery charging. It offers a programmable input current limit, a programmable charge current, charge termination, safety timer and soft start with slew rate control. Additionally, the device operates independent of system power, and can communicate with the system processor via an I2C interface. The device also supports independent pin control to prevent accidental trips. LTC4079IDD#TRPBF offers a variety of protection mechanisms. It supports thermal management utilizing a thermal foldback feature which reduces the charge current as the device temperature increases, thereby enhancing safety and protecting the battery. Additionally, the device offers overvoltage, undervoltage and reverse current protection, as well as cycle by cycle current and open circuit fault protection.

Application fields

Due to its unique features and advanced integration, the LTC4079IDD#TRPBF is ideal for a variety of portable device applications. It can be used in smartphones, tablets, mobile phones, digital cameras and other handheld devices. It can also be used in other applications such as automotive, automotive and aerospace, avionics, medical and industrial where a safe, regulated and efficient battery charging is required.

Working principle

The working principle of the LTC4079IDD#TRPBF is simple. Once the device is powered on, the battery voltage is monitored, and the device begins to charge the battery according to the desired program settings. The chosen settings are validated, and the device continues to charge the battery until its voltage reaches the programmed voltage limit. At this point, the device switches to a maximum current limit and terminates the charge when the current drops to a predetermined level. Once the device has reached the maximum current limit, it enters into a taper current mode and reduces the charge current exponentially until the charge is completed.

Conclusion

The LTC4079IDD#TRPBF is a powerful battery charge solution for portable device applications. It offers a number of features and benefits, including an integrated circuit to monitor and control the battery charge, thermal foldback, overvoltage, undervoltage and reverse current protection, as well as a cycle by cycle current and open circuit fault protection. The LTC4079IDD#TRPBF is ideal for a variety of portable device applications, as well as automotive, avionics and industrial applications. Its simple working principle makes it an efficient and safe device for charging batteries.

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