MAX3980UTH+T

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Applications:	--
Interface:	XAUI
Voltage - Supply:	--
Package / Case:	44-WFQFN Exposed Pad
Supplier Device Package:	44-TQFN-EP (7x7)
Mounting Type:	Surface Mount
Base Part Number:	MAX3980

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MAX3980UTH+T Application Field and Working Principle

Introduction

MAX3980UTH+T is a high-efficiency, fully-automated and protected Li-ion battery pack charger designed for portable or vehicle applications. It is designed for standard single-cell or multi-cell battery packs, and can provide single output from 1.0A – 6.0A. The device offers short-circuit protection as well as detection of cell imbalance. It utilizes a constant-viflow algorithm for long autonomy and low noise applications.

Features

The MAX3980UTH+T has the following features:

• Fully-automated operation with 0.5% charge accuracy
• It supports Li-ion batteries ranging from 1 to 12 cells in parallel
• Short-circuit, over-current and cell-imbalance protections
• Constant-viflow algorithm ensures maximum battery life and low noise
• Flexible power path control
• Thermal protection shutdown
• Configurable cell balancing circuit
• Configurable discharge-current limit

Applications

MAX3980UTH+T is ideal for any mobile application including portable devices and EV/HEV battery systems. It is perfect for applications such as laptops, electric vehicles, solar power, battery systems, and portable medical equipment.

Working Principle

The MAX3980UTH+T utilizes a constant-viflow algorithm designed for both high-performance and long-term operation. The charger works by continuously measuring the voltage and current of the battery pack and adjusts the charging current based on these measurements. This ensures that the battery charge is optimized and also prevents over-charging and cell-imbalance.The device also provides protection against short circuit, over-current protection, and cell-imbalance protection. The protection circuits are designed to prevent over-heat, over-load and over-charge in the battery pack. The thermal protection circuit is designed to shut off the charger in case of over-heat and the discharge-current limit is designed to prevent over-discharging.

Conclusion

MAX3980UTH+T is an ideal Li-ion battery pack charger for portable applications and EVs/HEVs. It offers short-circuit, over-current and cell-imbalance protection and utilizes a constant-viflow algorithm for long battery life and low noise. It also provides configurable cell balancing, power path control and discharge-current limit features.

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