LTC2977IUP

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LTC2977IUP

IC PWR SUPPLY MGR

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規格

Part Status Obsolete
DigiKey Programmable Not Verified
Applications Power Supply Controller/Monitor
Voltage - Supply 3.3V, 4.5V ~ 15V
Current - Supply 10 mA
Operating Temperature -40°C ~ 105°C
Mounting Type Surface Mount
Package / Case 64-WFQFN Exposed Pad
Supplier Device Package 64-QFN (9x9)
Base Product Number LTC2977

概述

Description

The LTC2977IUP is a precision power supply sequencer and monitor by Analog Devices. It is designed for applications requiring high reliability and efficiency in power management. The device integrates monitoring and control functions for up to eight power supply rails, making it suitable for complex systems with multiple voltage domains. Key features include precise voltage measurement, fault logging, and the ability to sequence power supplies on and off in a controlled manner.
The LTC2977IUP offers an I²C/SMBus/PMBus-compliant interface for easy communication and configuration. It supports voltage, current, and temperature monitoring, allowing for comprehensive system oversight. The device also includes EEPROM for storing configuration settings, which aids in system customization and reliability.
This IC is ideal for telecommunications, data centers, and industrial applications where power integrity and sequencing are critical. It helps in maintaining system stability by ensuring power supplies are activated in the correct order, preventing potential damage from power faults. With its compact package and robust feature set, the LTC2977IUP simplifies power management design and enhances system reliability.

Features

The LTC2977IUP is a power management and monitoring IC designed for complex systems requiring precise power control and sequencing. Here are its key features:
1. Multi-Channel Management: Supports up to 8 power supply channels, making it suitable for applications with multiple voltage rails.
2. Telemetry and Monitoring: Offers real-time telemetry capabilities, including voltage, current, and temperature monitoring, enabling predictive maintenance and system optimization.
3. PMBus Compatibility: Utilizes the PMBus interface for communication, allowing easy integration into digital power management systems.
4. Sequencing and Margining: Features sequencing capabilities to ensure power-up and power-down in a predefined order, along with voltage margining for adjusting supply voltages.
5. Fault Logging: Provides detailed fault logging to aid in diagnosing and addressing issues, enhancing system reliability.
6. EEPROM: Includes EEPROM for configuration storage, allowing for non-volatile settings retention across power cycles.
7. Compact Package: Available in a compact QFN package, optimizing board space usage.
These features make the LTC2977IUP ideal for applications in telecommunications, data centers, and industrial automation, where precise power management is crucial.

Package

The LTC2977IUP is a power management IC from Analog Devices, featuring a 48-lead 7mm x 7mm QFN (Quad Flat No-leads) package. This package type offers a compact solution for integrating multiple power supply management functions with high efficiency in space-constrained applications.

Pinout

The LTC2977IUP is a power management IC (PMIC) that serves as a digital power system management controller. It is part of Analog Devices’ line of PMICs designed for monitoring and controlling up to eight power supplies.
The LTC2977IUP comes in a 64-pin QFN (Quad Flat No-leads) package. Its primary functions include:
1. Voltage Monitoring: It can monitor up to eight power supply outputs for overvoltage and undervoltage conditions.
2. Fault Logging: The device logs faults, which aids in system diagnostics.
3. Sequencing and Margining: It provides precise control over supply sequencing and output voltage margining.
4. Telemetry: It offers real-time telemetry functions, such as output voltage, current, and temperature measurements.
5. I2C/PMBus Interface: The IC includes an I2C/PMBus-compatible digital interface for easy integration with system controllers.
These features enable comprehensive power management, making the LTC2977IUP suitable for use in complex electronic systems where reliability and precision are critical.

Manufacturer

The LTC2977IUP is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design, manufacturing, and marketing of a broad range of integrated circuits used in electronic equipment. The company's products are used in various applications, including data conversion, signal processing, and power management, catering to industries such as telecommunications, healthcare, automotive, and industrial instrumentation.

Application

The LTC2977IUP is a power supply monitor and controller designed for managing multiple power supplies in complex systems. Its key application areas include telecommunications, data centers, industrial automation, networking equipment, and test and measurement systems. It provides precise monitoring, sequencing, margining, and fault management for up to eight power rails, enhancing system reliability and performance.

Equivalent

The LTC2977IUP is a 16-bit octal power supply monitor and sequencer by Analog Devices. Equivalent products typically include power management ICs with similar functionalities. Some potential alternatives are the Texas Instruments UCD9081, Maxim Integrated's MAX16054, and Renesas ISL28022. These alternatives offer comparable features like power supply monitoring, sequencing, and fault logging, though specific functionalities and specifications may vary. Always verify compatibility with your application requirements.

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