LTC4000EUFD#TRPBF

Series:	PowerPath™
Packaging:	Tape & Reel (TR)
Part Status:	Active
Battery Chemistry:	Lithium Iron Phosphate
Number of Cells:	--
Current - Charging:	Constant - Programmable
Programmable Features:	Timer
Fault Protection:	Reverse Current
Charge Current - Max:	--
Battery Pack Voltage:	--
Voltage - Supply (Max):	60V
Interface:	--
Operating Temperature:	-40°C ~ 125°C (TJ)
Package / Case:	28-WFQFN Exposed Pad
Supplier Device Package:	28-QFN (4x5)
Base Part Number:	LTC4000

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Introduction

The LTC4000EUFD#TRPBF is part of the LTC4000 Family of advanced PMIC (Power Management Integrated Circuit) products. This device is a high density and efficient power conversion device dedicated to battery charging applications. It offers both high switching frequency and low noise performance by using a full digital architecture that can be easily adapted to scale up or down. It also provides high-end scalability and flexibility to meet various customer demands, making it ideal for a wide range of Li-ion, LiFePO4 and lead-acid battery powered applications.

Application Field

The LTC4000EUFD#TRPBF is a versatile battery charger solution. It is suitable for a wide range of battery-powered applications, ranging from consumer electronic devices such as tablets and Smartphones to wearable devices and industrial equipment. It is designed to support multiple battery chemistries such as Li-ion, LiFePO4, as well as lead-acid batteries. It is also an ideal solution for low-power applications such as wearable or remote equipment.The LTC4000EUFD#TRPBF features two separate input channels with a current capability of up to 4A combined, with a single channel is capable of 2A. It also supports input voltages up to 48V. This ensures that the LTC4000EUFD#TRPBF can support various battery chemistries and multiple use cases.

Working Principle

The LTC4000EUFD#TRPBF uses an advanced full digital architecture that is capable of providing high switching frequency and low noise performance. This architecture consists of a clamping stage, a voltage-mode control block, and a dynamic maximum power point tracking (MPPT) circuit. The clamping stage limits the input voltage to protect the device from excessive input voltages. The voltage-mode control block is used to transform a given voltage source into a constant current source. It adjusts the current to the desired level based on the feedback signal from the dynamic MPPT circuit. The dynamic MPPT circuit senses the battery voltage and adjusts the charging current accordingly. This ensures that the battery is charged at a rate that is safe for the chemistry and is capable of achieving maximum capacity.

Conclusion

The LTC4000EUFD#TRPBF is a versatile battery charger optimized for both high switching frequency and low noise performance. It supports multiple battery chemistries and provides high efficiency, making it suitable for a variety of battery-powered applications. It is well-suited for Li-ion, LiFePO4, and lead-acid batteries, as well as low-power applications like wearables or remote equipment. Through the use of its advanced full digital architecture, the LTC4000EUFD#TRPBF is able to provide reliable and efficient charging for any battery-powered device.

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