LTC3350EUHF

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LTC3350EUHF

+BOM

IC BACKUP CTRLR CHRG/MON

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Specifications

Attribute Value
Package Tube
ProductStatus Obsolete
Applications Supercapacitor Backup Controller
Current-Supply 4mA
Voltage-Supply 4.5V ~ 35V
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 38-WFQFN Exposed Pad

Overview

Description

The LTC3350EUHF is a highly integrated backup power controller and energy management system designed for applications that require reliable backup power. It efficiently manages the charging and discharging of supercapacitors, ensuring a consistent power supply during power failures or interruptions. The device includes several key features: a high-efficiency step-down DC/DC converter for supercapacitor charging, a step-up DC/DC converter for voltage regulation during backup power delivery, and a comprehensive set of monitoring and management capabilities.
The LTC3350EUHF is capable of monitoring supercapacitor voltage, current, and temperature, providing valuable data for system diagnostics and maintenance. Its advanced balancing circuitry optimizes the charge distribution among supercapacitors, extending their lifespan and improving overall system reliability. The device supports I²C/SMBus interfaces, allowing for easy integration and communication with other system components.
Overall, the LTC3350EUHF is suitable for a wide range of applications, including industrial systems, telecommunications, and any mission-critical systems where power continuity is essential.

Equivalent

The LTC3350EUHF is a high-performance supercapacitor charger and backup controller. Equivalent products might include:
1. Maxim Integrated MAX38888 - A backup energy regulator.
2. Texas Instruments BQ24650 - Solar charger controller with MPPT.
3. Analog Devices ADP5090 - Energy harvester PMU for low-power applications.
4. Microchip MCP73871 - Device managing battery charger with power path.
These alternatives may have different specifications, so it's crucial to verify compatibility with specific application requirements.

Features

The LTC3350EUHF is a supercapacitor charger and backup controller designed for high-reliability power systems. It features an integrated step-down DC/DC converter for efficient supercapacitor charging with programmable input current limiting. It supports up to 10 supercapacitors in series with voltage balancing and provides real-time monitoring of voltage, current, and temperature. The device offers a backup power path that automatically switches to supercapacitors when input power is lost, ensuring continuous power supply. It includes an I²C/SMBus interface for configuration and status monitoring, allowing for easy integration into complex systems. The LTC3350EUHF also features programmable protection features, including overvoltage, overcurrent, and over-temperature protection, enhancing system safety and reliability. The device comes in a compact, thermally enhanced 38-lead (5mm × 7mm) QFN package, making it suitable for space-constrained applications.

Pinout

The LTC3350EUHF is an integrated backup power controller and energy monitor designed for use with supercapacitors. It comes in a 38-pin QFN (Quad Flat No-leads) package. The device manages the charging and discharging of supercapacitors, monitors energy levels, and ensures the backup system is ready to deliver power when needed.
Key functions include:
1. Charging Control: Manages the charging of supercapacitors efficiently with adjustable current limits and voltage balancing.
2. Energy Monitoring: Provides real-time monitoring of input/output voltage, current, capacitance, and energy storage.
3. Backup Power Management: Ensures seamless transition to backup power during a main power loss, supporting critical applications.
4. Health Monitoring: Offers diagnostics and monitoring features to assess the health of the supercapacitors.
5. Communication Interface: Includes an I²C interface for configuration and data retrieval.
The LTC3350EUHF is ideal for applications requiring reliable short-term backup power like servers, data storage systems, and telecommunications equipment.

Manufacturer

The LTC3350EUHF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design, manufacture, and marketing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits used in electronic equipment. The company serves various industries, including automotive, communications, healthcare, industrial automation, instrumentation, and consumer electronics. Analog Devices is known for its innovative solutions and high-performance products in the field of signal processing and power management.

Application

The LTC3350EUHF is a high-performance supercapacitor charger and backup controller. Its primary application areas include:
1. Uninterruptible Power Supplies (UPS): Provides backup power during outages.
2. Energy Storage Systems: Manages energy flow for renewable energy applications.
3. Industrial and Automotive Systems: Offers reliable power management in harsh environments.
4. Data Backup Systems: Ensures data integrity by providing backup power during system failures.
5. Power Fail Protection: Maintains power to critical components when primary sources fail.
These applications benefit from the LTC3350EUHF's efficient supercapacitor charging, monitoring, and protection features, which enhance system reliability and longevity.

Package

The LTC3350EUHF is typically available in a 38-lead plastic QFN (Quad Flat No-Lead) package, known as the 38-Lead QFN (5mm × 7mm) package. This package provides a compact and efficient solution for the electronics it supports.

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