LTC4425EMSE#TRPBF - Analog Devices Inc.

Manufacturer Part Number

LTC4425EMSE#TRPBF

Manufacturer

Analog Devices

Introduction

The LTC4425 is a specialized power management integrated circuit (PMIC) designed for efficiently charging supercapacitors.

Product Features and Performance

Efficient charging of one or two supercapacitors optimally from a 2.7V to 5.5V input supply.

Features an automatic cell balancing functionality to maintain equal voltages on connected supercapacitors.

Offers a low-quiescent current of 20µA, optimizing power usage.

Capable of operating across a wide temperature range from -40°C to 125°C, making it suitable for diverse environments.

Integrates a PowerPath control that manages the direction of power flow between the input supply, supercapacitors, and load.

Product Advantages

High efficiency in charging supercapacitors minimizes heat generation.

The inbuilt cell balancing negates the need for external balancing resistors, reducing component count and system complexity.

Low quiescent current enhances overall system power conservation.

The device's robust operation over a wide temperature range ensures reliability in tough environmental conditions.

Flexibility in mounting options with its surface mount package.

Key Technical Parameters

Supply Current: 20µA

Supply Voltage Range: 2.7V to 5.5V

Operating Temperature: -40°C to 125°C

Mounting Type: Surface Mount

Package/Case: 12-TSSOP with Exposed Pad

Compatibility with both one-cell and two-cell supercapacitor configurations.

Quality and Safety Features

Integrated thermal shutdown protects the device and connected components from overheating.

Automatic cell balancing ensures the longevity and safety of supercapacitor cells by preventing overvoltage scenarios.

Compatibility

Compatible with a wide range of input voltages and supercapacitor configurations, making it versatile for multiple designs and applications.

Application Areas

Energy harvesting systems

Backup power supplies

Real-time clock power backup

Portable and wearable technology power management

Product Lifecycle

Currently in Active product status, not indicated to be nearing discontinuation.

Analog Devices typically supports long lifecycle products, though specific replacement or upgrade paths should be monitored through official product documentation.

Several Key Reasons to Choose This Product

High efficiency and integrated balancing reduce the overall system power requirements and complexity.

The wide operating temperature range ensures reliability in varied environmental conditions.

Low quiescent current enhances battery life or energy harvesting efficiency, making it ideal for portable applications.

Surface mount package facilitates compact and flexible design considerations.

Supported by Analog Devices' reputation for quality and long lifecycle products, ensuring ongoing support and reliability.