LTC4070EMS8E#PBF

Series:	--
Packaging:	Tube
Part Status:	Active
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	--
Current - Charging:	--
Programmable Features:	--
Fault Protection:	--
Charge Current - Max:	--
Battery Pack Voltage:	4.2V
Voltage - Supply (Max):	--
Interface:	--
Operating Temperature:	-40°C ~ 125°C (TJ)
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Supplier Device Package:	8-MSOP-EP
Base Part Number:	LTC4070

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Introduction

The LTC4070EMS8E#PBF is a high-performance, low-noise, programmable, battery charger controller designed for rechargeable single-cell Li-Ion and Li-Polymer battery applications. It operates from 2.3V to 6V, allows for a wide range of charging voltages, and is both efficient and cost-effective. The LTC4070EMS8E#PBF provides an ideal solution for many battery-powered systems, including cell phones, portable media players, and other mobile devices.

Application field and Working Principle

The LTC4070EMS8E#PBF is a monolithic battery charging circuit designed for use in Li-Ion and Li-Polymer battery-powered applications. The device utilizes true charge control to safely and accurately charge single-cell Li-Ion or Li-Polymer batteries with currents up to 1A. The circuit includes all the necessary features for an optimized and safe charging process, including input current regulation, battery pre-charging, and cell temperature monitoring.The circuit also features a programmable current termination, enabling the user to set the charging current limit. In addition, a programmable top-off feature allows for periodic charging cycles, ensuring the battery is always topped up for optimal performance. The LTC4070EMS8E#PBF features an integrated comparator and digitally programmable voltage reference to accurately set the battery float voltage. This float voltage can be adjusted over a wide range (2.5V – 5.4V). Finally, an enable pin is provided for user control of the charging cycle. In summary, the LT4070EMS8E#PBF is a highly integrated, low-noise, cost-effective solution ideal for designs requiring a robust and reliable charging solution. Furthermore, its programmable features enable customization and flexibility to meet the needs of a variety of systems.

Key Features

The LTC4070EMS8E#PBF includes the following key features:

• True charge control
• Programmable voltage termination
• Integrated comparator and programmable voltage reference
• Adjustable float voltage
• Charge current limit
• Top-off feature
• Thermal regulation
• Polarity protection
• Zero voltage detection

Conclusion

The LTC4070EMS8E#PBF is an ideal solution for high-performance, low-noise, Li-Ion and Li-Polymer battery charging applications. Its range of features and programmable options allow for efficient and cost-effective charging solutions in a variety of systems, enabling the device to become a key component in many portable, battery-powered systems.

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