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LTC4284HUHG#TRPBF
Product Overview
Category
LTC4284HUHG#TRPBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.
Use
This product is commonly used in various power management systems, including but not limited to battery chargers, power supplies, and DC-DC converters.
Characteristics
- High efficiency: The LTC4284HUHG#TRPBF offers high efficiency power management, ensuring optimal energy utilization.
- Compact package: It comes in a small form factor package, making it suitable for space-constrained applications.
- Robust design: The product is built with robust components, ensuring reliability and durability.
- Advanced features: It incorporates advanced features such as overvoltage protection, undervoltage lockout, and thermal shutdown.
Package and Quantity
The LTC4284HUHG#TRPBF is available in a compact 16-pin QFN (Quad Flat No-Lead) package. It is typically sold in reels containing a quantity of 250 units.
Specifications
- Input Voltage Range: 2.9V to 80V
- Output Voltage Range: 0V to 80V
- Maximum Continuous Current: 5A
- Operating Temperature Range: -40°C to 125°C
- Control Interface: I2C/SMBus
Pin Configuration
The LTC4284HUHG#TRPBF has the following pin configuration:
- VIN: Input voltage pin
- VOUT: Output voltage pin
- GND: Ground pin
- SDA: I2C/SMBus data pin
- SCL: I2C/SMBus clock pin
- EN: Enable pin
- FAULT: Fault indicator pin
- REF: Reference voltage pin
- OVSET: Overvoltage threshold setting pin
- UVSET: Undervoltage threshold setting pin
- ILIM: Current limit setting pin
- TSD: Thermal shutdown pin
- VCC: Power supply pin
- NC: Not connected
- NC: Not connected
- NC: Not connected
Functional Features
- Overvoltage Protection: The LTC4284HUHG#TRPBF monitors the input voltage and protects against overvoltage conditions.
- Undervoltage Lockout: It ensures that the output voltage remains within a safe range by detecting undervoltage situations.
- Thermal Shutdown: The product incorporates thermal shutdown functionality to prevent overheating and damage.
- I2C/SMBus Interface: The LTC4284HUHG#TRPBF can be controlled and monitored through an I2C/SMBus interface, allowing for easy integration into digital control systems.
Advantages and Disadvantages
Advantages
- High efficiency power management
- Compact package suitable for space-constrained applications
- Robust design for reliability and durability
- Advanced protection features
Disadvantages
- Limited maximum continuous current (5A)
- Requires I2C/SMBus interface for control and monitoring
Working Principles
The LTC4284HUHG#TRPBF operates by continuously monitoring the input voltage and adjusting the output voltage accordingly. It utilizes feedback mechanisms to regulate the power flow and protect against overvoltage and undervoltage conditions. The I2C/SMBus interface allows for real-time control and monitoring of various parameters.
Application Field Plans
The LTC4284HUHG#TRPBF finds extensive application in the following fields:
- Battery chargers: It is used to efficiently manage the charging process and protect against voltage fluctuations.
- Power supplies: The product ensures stable and regulated power delivery in various power supply applications.
- DC-DC converters: It enables efficient conversion of power between different voltage levels in DC-DC converter circuits.
Alternative Models
For those seeking alternative options, the following models can be considered:
- LTC4284HUHG#PBF: Similar to LTC4284HUHG#TRPBF but without tape and reel packaging.
- LTC4284IUHG#TRPBF: A variant with an extended temperature range (-40°C to 150°C) for more demanding environments.
- LTC4284CUHG#TRPBF: This model offers a higher maximum continuous current rating of 10A.
In conclusion, the LTC4284HUHG#TRPBF is a highly efficient integrated circuit designed for power management applications. With its compact package, advanced features, and robust design, it provides reliable and precise control over power flow. Its application field plans cover battery chargers, power supplies, and DC-DC converters. While it has some limitations, such as limited maximum continuous current and reliance on an I2C/SMBus interface, alternative models are available to suit specific requirements.
Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LTC4284HUHG#TRPBF v technických řešeních
Sure! Here are 10 common questions and answers related to the application of LTC4284HUHG#TRPBF in technical solutions:
Q: What is LTC4284HUHG#TRPBF? A: LTC4284HUHG#TRPBF is a specific model number of a power over Ethernet (PoE) controller IC manufactured by Linear Technology (now part of Analog Devices). It is used for managing power delivery in PoE applications.
Q: What are the key features of LTC4284HUHG#TRPBF? A: Some key features of LTC4284HUHG#TRPBF include IEEE 802.3af/at/bt compatibility, integrated hot swap controller, programmable current limit, and fault protection mechanisms.
Q: How does LTC4284HUHG#TRPBF enable power over Ethernet? A: LTC4284HUHG#TRPBF integrates the necessary circuitry to extract power from an Ethernet cable and regulate it for use by connected devices. It supports various PoE standards and provides power negotiation capabilities.
Q: Can LTC4284HUHG#TRPBF be used in both 10/100Mbps and Gigabit Ethernet applications? A: Yes, LTC4284HUHG#TRPBF is compatible with both 10/100Mbps and Gigabit Ethernet applications, making it versatile for a wide range of PoE implementations.
Q: What is the maximum power that LTC4284HUHG#TRPBF can deliver to a PoE device? A: The maximum power that LTC4284HUHG#TRPBF can deliver depends on the PoE standard being used. It supports up to 90W power delivery for IEEE 802.3bt applications.
Q: Does LTC4284HUHG#TRPBF provide protection against overcurrent and overvoltage conditions? A: Yes, LTC4284HUHG#TRPBF incorporates various fault protection mechanisms, including overcurrent and overvoltage protection, to safeguard the connected devices and the PoE system.
Q: Can LTC4284HUHG#TRPBF be used in both powered device (PD) and power sourcing equipment (PSE) applications? A: No, LTC4284HUHG#TRPBF is specifically designed for use in powered device (PD) applications. For power sourcing equipment (PSE) applications, a different PoE controller IC would be required.
Q: What is the operating temperature range of LTC4284HUHG#TRPBF? A: LTC4284HUHG#TRPBF has an extended operating temperature range of -40°C to +125°C, making it suitable for use in harsh environments.
Q: Does LTC4284HUHG#TRPBF support power classification for PoE devices? A: Yes, LTC4284HUHG#TRPBF supports power classification according to the IEEE 802.3af/at/bt standards, allowing it to negotiate the power requirements with the PSE.
Q: Are there any evaluation boards or reference designs available for LTC4284HUHG#TRPBF? A: Yes, Analog Devices provides evaluation boards and reference designs for LTC4284HUHG#TRPBF, which can help developers quickly prototype and integrate the IC into their PoE solutions.
Please note that the answers provided here are general and may vary depending on specific implementation requirements. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.