Analog Devices Inc. LTC3643IUDD#TRPBF Overview

The LTC3643IUDD#TRPBF is a high-efficiency, bidirectional, buck-boost supercapacitor charger from Analog Devices Inc. It is designed to efficiently transfer power between a supply source and a dual-cell supercapacitor stack. This component is housed in a compact 3mm x 3mm QFN package, making it ideal for space-constrained applications requiring a robust energy storage solution.

Key Features

• Wide Input Voltage Range: The device operates with an input voltage range from 2.7V to 17V, accommodating a variety of supply sources.
• Adjustable Charging Current: Users can set the charge current up to 2A through an external resistor, providing flexibility for different supercapacitor sizes and charge rates.
• Automatic Cell Balancing: The LTC3643IUDD#TRPBF includes automatic cell balancing, ensuring both cells in a supercapacitor stack charge evenly, which maximizes performance and longevity.
• Low Quiescent Current: It features a low quiescent current, which is crucial for battery-powered and energy-sensitive applications.
• Programmable Charge Voltage: The charge voltage is programmable up to 5.5V per cell, which allows for flexibility in the supercapacitor stack configuration.
• Thermal Protection: The device includes over-temperature protection, enhancing its reliability and safety in operation.

Applications

The LTC3643IUDD#TRPBF is suitable for a wide range of applications, particularly where energy storage and delivery are critical. It is commonly used in:

• Backup power systems
• Energy harvesting
• Peak power management
• Portable equipment
• Uninterruptible power supplies (UPS)

Product Quality and Reliability

Analog Devices Inc. is renowned for its commitment to product quality and reliability. The LTC3643IUDD#TRPBF is manufactured with the highest standards to ensure it meets the rigorous demands of industrial, automotive, and consumer applications. With its robust design and comprehensive feature set, this supercapacitor charger is an excellent choice for designers looking to enhance their power management solutions.