LTC4059EDC#TRPBF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Battery Chemistry:	Lithium-Ion
Number of Cells:	1
Current - Charging:	Constant - Programmable
Programmable Features:	--
Fault Protection:	--
Charge Current - Max:	900mA
Battery Pack Voltage:	4.2V
Voltage - Supply (Max):	8V
Interface:	--
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	6-WFDFN Exposed Pad
Supplier Device Package:	6-DFN (2x2)
Base Part Number:	LTC4059

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• Introduction

The LTC4059EDC#TRPBF is an advanced power management IC (PMIC) used to manage and charge lithium-ion batteries. The device includes a unique combination of features to monitor, control, and protect battery charging, allowing it to be used in a wide range of applications, including industrial, medical, transportation, and consumer electronics. The LTC4059EDC#TRPBF allows for flexibility and programmability, making it ideal for a wide variety of battery applications. Its innovative design and integrated features help maximize battery performance and performance.

• Technology Overview

The LTC4059EDC#TRPBF is an advanced PMIC designed to charge and monitor lithium-ion batteries. It has a high accuracy analog front end, switching frequency of up to 500kHz, and synchronous rectification for high efficiency charging. The device incorporates a wide range of features, including high input voltage protection, termperature monitoring and protection, battery pack balancing, and real time live cell voltage monitoring. The device also has programmable voltage, current, and termination charging parameters, allowing for flexibility in various battery applications.The device includes both a charge pump and a boost regulator to provide a high step/drop rate to optimize performance in various applications. The charge pump is able to provide step up or down conversion to provide the required voltage or current to the battery. The boost regulator converts the input voltage to a higher voltage to charge the battery. The device also features integrated power sequencing and system power gating, load disconnect and gate driver, UVLO and OVLO protection, and thermal shutdown. These features ensure that the system is optimized for efficient and safe charging.

• Application Fields

The LTC4059EDC#TRPBF is ideal for use in a wide range of battery applications, including:

• Consumer electronics
• Portable medical devices
• Industrial applications
• Automotive
• Aerospace
• Ruggedized mobile devices

The device\'s power management features make it especially useful in applications where safety and high efficiency are of primary concern. Additionally, its precision accuracy and programmability make it well-suited for applications requiring accurate monitoring and tuning.

• Working Principle

The LTC4059EDC#TRPBF is a Pulse Width Modulated (PWM) Li-Ion battery charger. It charges a battery using a regulated output voltage, with a typical PWM switching frequency of 500kHz. As the battery reaches its full charge, the PWM adjusts to a trickle charge and maintains the full charge current until the battery is fully depleted.The device also incorporates an integrated system power manager, which helps to improve system efficiency and reduce undesired battery discharge. The system power manager monitors the battery\'s state of charge and the battery temperature, and limits the discharge current from the battery, thereby improving efficiency throughout the charge and discharge cycles. Additionally, the device\'s integrated load disconnect and gate driver circuit helps to protect the battery from excessive charging or discharging failures.

• Conclusion

The LTC4059EDC#TRPBF is an advanced PMIC designed to efficiently charge and monitor lithium-ion batteries. Its features include high input voltage protection, temperature monitoring and protection, battery pack balancing, and sophisticated power management. The device is optimized for a variety of applications, including consumer electronics, portable medical devices, and industrial applications. Its integrated circuitry and programmability make it an ideal solution for battery monitoring and charging.

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