LT3651EUHE-8.4#TRPBF

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LT3651EUHE-8.4#TRPBF

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IC BATT CHG LI-ION 2CELL 36QFN

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Spezifikationen

Attribut Wert
Part Status Active
Battery Chemistry Lithium Ion/Polymer
Number of Cells 2
Current - Charging Constant - Programmable
Programmable Features Current, Timer
Fault Protection Over Temperature
Charge Current - Max 4A
Battery Pack Voltage 8.4V
Voltage - Supply (Max) 32V
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 36-WFQFN Exposed Pad
Supplier Device Package 36-QFN (5x6)
Base Product Number LT3651

Übersicht

Description

The LT3651EUHE-8.4#TRPBF is a high-efficiency battery charger IC designed for charging lithium-ion and lithium-polymer batteries. It features an adjustable output voltage of up to 8.4V, making it suitable for two-cell battery configurations. This device supports both linear and switching power management, ensuring efficient charging while minimizing heat generation.
Key features include a wide input voltage range (up to 30V), a programmable charge current, and a built-in thermal regulation function to prevent overheating. The LT3651 offers multiple charging modes, including constant current and constant voltage, and includes protections against overvoltage, undervoltage, and temperature variations.
It is packaged in a thermally enhanced 16-lead TSSOP, making it suitable for compact applications in consumer electronics, portable devices, and battery management systems. The LT3651EUHE-8.4#TRPBF is particularly valued for its reliability and performance, making it a preferred choice among engineers for battery charging solutions.

Equivalent

Equivalent products to the LT3651EUHE-8.4#TRPBF include the MAX1555, MCP73831, and BQ24103. These chips are designed for lithium battery charging and offer similar functionalities, including charge management and efficiency. Always check specific datasheets for precise specifications and compatibility to ensure proper application.

Features

The LT3651EUHE-8.4#TRPBF is a high-performance lithium-ion battery charger designed by Analog Devices. Key features include:
1. Input Voltage Range: Supports a wide input voltage range, typically from 4.5V to 32V.
2. Output Voltage: Configurable output voltage, with a default of 8.4V for charging two-cell Li-ion batteries in series.
3. Charging Current: Adjustable charging current up to 1A, allowing for flexible charging rates.
4. Constant-Current/Constant-Voltage (CC/CV) Operation: Provides efficient and safe charging with automatic transition between CC and CV modes.
5. Thermal Regulation: Includes an integrated temperature sensing feature for safe charging at elevated temperatures.
6. Status Indicators: LED indicators for charge status, including charging, completed, and fault conditions.
7. Protection Features: Includes over-voltage, over-current, and thermal protection to ensure safe operation.
This IC is suitable for various applications, including portable devices, electric vehicles, and energy storage systems.

Pinout

The LT3651EUHE-8.4#TRPBF is a lithium-ion battery charger IC with a pin count of 8. Its primary functions include:
1. Vin (Pin 1): Input voltage supply.
2. GND (Pin 2): Ground reference.
3. Vout (Pin 3): Output voltage to the battery.
4. Iset (Pin 4): Set point for charging current.
5. CHRG (Pin 5): Charge indicator (open drain).
6. TMR (Pin 6): Timer reset, used for setting the charge time.
7. BAT (Pin 7): Battery voltage sense.
8. PROG (Pin 8): Programming input for various settings.
This IC is designed for efficient charging of Li-ion batteries, providing features such as constant current/constant voltage (CC/CV) regulation and temperature protection.

Manufacturer

The LT3651EUHE-8.4#TRPBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational company that specializes in the design and manufacturing of high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs). Founded in 1965 and headquartered in Norwood, Massachusetts, Analog Devices serves a variety of markets, including industrial automation, automotive, communications, consumer electronics, and healthcare, among others.
The company is known for its innovation in signal processing technology and has a wide range of products that address various applications involving data conversion, amplification, and power management. Analog Devices focuses on providing high-quality solutions that enable their customers to build more efficient, reliable, and advanced electronic systems. They are recognized for their commitment to research and development, which helps them maintain a leading position in the semiconductor industry.

Application

The LT3651EUHE-8.4#TRPBF is a highly integrated Li-Ion battery charger designed for applications requiring efficient charging and power management. Key application areas include solar-powered systems, portable electronics, battery backup systems, electric vehicles, and wearable devices. It supports various charging profiles and can manage multiple power sources, making it suitable for energy harvesting applications. The device is also used in automotive applications and IoT devices where space and efficiency are critical. Its ability to handle high input voltages and provide precise battery management enhances its versatility across different industries.

Package

The LT3651EUHE-8.4#TRPBF is packaged in a 16-lead HTSSOP (Thin Shrink Small Outline Package) with a thermal pad for enhanced heat dissipation.

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