LTC4282AUH#TRPBF

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LTC4282AUH#TRPBF

IC HOT SWAP CTRLR

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Bảo hành 365 ngày

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Thông số kỹ thuật

Part Status Active
Type Hot Swap Controller, Monitor
Number of Channels 1
Internal Switch(s) No
Applications General Purpose
Features I2C, Fault Timeout, Latched Fault, OVP, SMBus, UVLO
Programmable Features Circuit Breaker, Current Limit, Fault Timeout, OVP, Slew Rate, UVLO
Voltage - Supply 2.9V ~ 33V
Operating Temperature -40°C ~ 85°C
Current - Supply 3.5 mA
Mounting Type Surface Mount
Package / Case 32-WFQFN Exposed Pad
Supplier Device Package 32-QFN (5x5)
Base Product Number LTC4282

Tổng quan

Description

The LTC4282AUH#TRPBF is a Power over Ethernet (PoE) powered device controller designed by Analog Devices. It supports IEEE 802.3af and 802.3at standards, enabling devices to receive power and data over a single Ethernet cable. This controller is particularly beneficial for powering network devices like IP cameras, VoIP phones, and wireless access points.
Key features include an integrated high-accuracy voltage and current sense, which allows for effective monitoring of power consumption. It also provides safety features like under-voltage lockout and over-temperature protection. The device operates with a wide input voltage range and has low power consumption in idle mode, making it efficient for various applications.
The LTC4282AUH#TRPBF is available in a compact package, facilitating easy integration into existing designs. Its robustness and efficiency make it a preferred choice for developers looking to implement PoE solutions in their products.

Features

The LTC4282AUH#TRPBF is a power management integrated circuit designed for Hot Swap applications. Key features include:
1. Hot Swap Support: Allows safe insertion and removal of boards in live systems, protecting against inrush current.
2. Wide Input Voltage Range: Operates from 4.5V to 80V, making it suitable for various power supply applications.
3. Adjustable Current Limit: Configurable via an external resistor, enabling control over the maximum inrush current.
4. Integrated MOSFET Driver: Supports external N-channel MOSFETs for efficient power management.
5. Voltage Monitoring: Provides output voltage monitoring and fault indication, enhancing system reliability.
6. Thermal Protection: Includes thermal shutdown to prevent overheating, adding an extra layer of safety.
7. Compact Package: Available in a 20-lead TSSOP package, facilitating space-constrained designs.
8. Enhanced Load Protection: Offers features like reverse voltage protection and overvoltage protection.
These features make it ideal for applications in telecommunications, industrial equipment, and servers.

Package

The LTC4282AUH#TRPBF is packaged in a 32-lead HTQFP (Heat Sink Thin Quad Flat Package) with a thermal pad, designed for enhanced thermal performance and efficient heat dissipation.

Pinout

The LTC4282AUH#TRPBF is a power management IC from Analog Devices, specifically designed for Power over Ethernet (PoE) applications. It comes in a 28-lead HTQFN (Thin Quad Flat No-lead) package.
Pin count: 28 pins
Key functions include:
- PoE Power Detection: Detects the presence of PoE power sources.
- Classification Support: Determines the power classification of the powered device.
- Integrated Hot Swap: Enables isolation and connection to the power source without interrupting the system.
- Voltage Regulation: Regulates output voltage for powered devices.
- Status Indication: Provides status feedback for monitoring.
- Thermal Protection: Includes features for thermal shutdown to prevent overheating.
This IC is ideal for applications such as IP cameras, VoIP phones, and wireless access points, supporting efficient power management in network devices. For detailed specifications, refer to the manufacturer's datasheet.

Manufacturer

The LTC4282AUH#TRPBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational company that designs and manufactures a wide range of analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs). Founded in 1965 and headquartered in Norwood, Massachusetts, Analog Devices serves various industries, including communications, automotive, industrial, and healthcare. The company is known for its high-performance semiconductor solutions that enable precise data conversion and signal processing, playing a critical role in applications such as sensors, automation, and signal conditioning.

Application

The LTC4282AUH#TRPBF is a Power over Ethernet (PoE) controller designed for powering devices over Ethernet cables. Its application areas include IP cameras, VoIP phones, wireless access points, and other networked devices that require power and data transmission through a single cable. It is particularly useful in scenarios where centralized power management and efficient power distribution are essential, such as in enterprise networking and industrial automation.

Equivalent

The LTC4282AUH#TRPBF is a Power-over-Ethernet (PoE) controller. Equivalent products include the Texas Instruments TPS23753, Analog Devices ADM1482, and Microchip MCP8025. These alternatives provide similar PoE functionality and support IEEE 802.3af/at standards. Always verify specific application requirements and compatibility when selecting alternatives.

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