Manufacturer Part Number
LTC4257CS8-1#TRPBF
Manufacturer
Analog Devices
Introduction
The LTC4257CS8-1#TRPBF is a single-channel, Power over Ethernet (PoE) controller designed for Power Device (PD) applications, structured specifically to comply with IEEE 802.3af standard.
Product Features and Performance
Type: Controller (PD)
Single power channel
Maximum power output of 12.95 W
Internal switch included
Complies with 802.3af PoE standard
Operates at a supply voltage up to 57V
Supply current of 3mA
Functional in a temperature range from 0°C to 70°C
Product Advantages
Reduces external component count with integrated internal switch
Supports high voltage up to 57V, improving versatility in application
Low supply current aids in better power efficiency
Key Technical Parameters
Number of Channels: 1
Power Max: 12.95 W
Voltage Supply: 57V (Max)
Current Supply: 3mA
Operating Temperature: 0°C ~ 70°C
Quality and Safety Features
Compliance with the strict 802.3af PoE standard ensures reliable power delivery and safety
Compatibility
Designed for surface mount applications, suitable for dense PCB layouts
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Application Areas
Network cameras
Wireless access points
IP phones
Other devices requiring up to 12.95W of power over Ethernet
Product Lifecycle
Status: Active
Not nearing discontinuation, with continued support and supply expected
Several Key Reasons to Choose This Product
High compatibility with standard PoE devices due to adherence to 802.3af standard
Low operational supply current enhances efficiency
Internal switch reduces the need for additional external components, saving space and cost
The capability to support high voltage applications up to 57V
Reliable operation within a wide temperature range ensures performance under various environmental conditions
LTC4257IS8-1Linear Technology / Analog Devices
LTC4257CS8LINEARTECHN