Overview
The LT4321IUF#TRPBF from Analog Devices Inc. is a dual ideal diode bridge controller designed to enable Power over Ethernet (PoE) powered devices. This component is crucial for ensuring efficient power delivery and management in PoE applications. It allows the powered device (PD) to receive power in either voltage polarity, enhancing the reliability and flexibility of the system.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 20-Lead QFN (4mm x 4mm x 0.75mm) |
| Operating Temperature Range | -40°C to 125°C |
| Supply Voltage Range | 36V to 57V |
| Current Rating | Up to 2.5A per Channel |
| Forward Voltage Drop | Typically 30mV |
| Reverse Current | Typically 1μA |
| Pin Count | 20 |
Key Features
- Dual ideal diode bridge controller for Power over Ethernet (PoE) applications.
- Allows the powered device to receive power in either voltage polarity.
- Low forward voltage drop (typically 30mV) and low reverse current (typically 1μA).
- High efficiency and low power loss.
- Compact 20-Lead QFN package (4mm x 4mm x 0.75mm).
- Operating temperature range from -40°C to 125°C.
Applications
- Power over Ethernet (PoE) powered devices.
- Network switches, routers, and other networking equipment.
- IP phones, security cameras, and other PoE-enabled devices.
- Industrial control systems and automation.
- Medical devices and healthcare equipment.
Q & A
- What is the primary function of the LT4321IUF#TRPBF? The primary function is to act as a dual ideal diode bridge controller for Power over Ethernet (PoE) applications.
- What is the operating temperature range of the LT4321IUF#TRPBF? The operating temperature range is from -40°C to 125°C.
- What is the typical forward voltage drop of the LT4321IUF#TRPBF? The typical forward voltage drop is 30mV.
- What is the package type of the LT4321IUF#TRPBF? The package type is a 20-Lead QFN (4mm x 4mm x 0.75mm).
- What is the maximum current rating per channel? The maximum current rating per channel is up to 2.5A.
- What are some common applications of the LT4321IUF#TRPBF? Common applications include PoE powered devices, network switches, routers, IP phones, security cameras, and industrial control systems.
- What is the supply voltage range for the LT4321IUF#TRPBF? The supply voltage range is from 36V to 57V.
- How does the LT4321IUF#TRPBF enhance the reliability of PoE systems? It enhances reliability by allowing the powered device to receive power in either voltage polarity and minimizing power loss.
- What is the typical reverse current of the LT4321IUF#TRPBF? The typical reverse current is 1μA.
- Where can I find detailed specifications for the LT4321IUF#TRPBF? Detailed specifications can be found in the datasheet available on the Analog Devices website and through distributors like Digi-Key and Mouser Electronics.
