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Aug 27, 2007 · The LTC4257 provides complete signature and power interface functions for a device operating in an IEEE 802.3af Power over Ethernet (PoE) system.
The LTC4257-1 simplifies Powered Device (PD) design by incorporating the 25k signature resistor, classification current source, input current limit, undervoltage lockout, thermal overload protection, signature disable and power good signalling, all in a single 8-pin package.
The LTC®4257 provides complete signature and power interface functions for a device operating in an IEEE 802.3af Power over Ethernet (PoE) system. The LTC4257 simplifies Powered Device (PD) design by incorporating the 25k signature resistor, the classification current source, input current limit with thermal foldback, undervoltage lockout and ...
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Order today, ships today. LTC4257IDD#PBF – Power Over Ethernet Controller 1 Channel 802.3af (PoE) 8-DFN (3x3) from Analog Devices Inc.. Pricing and Availability on millions of electronic components from Digi-Key Electronics.
- Analog Devices Inc.
LTC4257IDD-1 Analog Devices Power Switch ICs - POE / LAN LTC4257-1 - IEEE 802.3af PD Power over Ethernet Interface Controller with Dual Current Limit datasheet, inventory, & pricing.
Order today, ships today. LTC4257IS8#PBF – Power Over Ethernet Controller 1 Channel 802.3af (PoE) 8-SO from Analog Devices Inc.. Pricing and Availability on millions of electronic components from Digi-Key Electronics.
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Description: IEEE 802.3af PD Power over Ethernet Interface Controller. Manufacturer: Linear Technology.
