LTC4257-1 Overview
Key Features
- Complete Power Interface Port for IEEE 802®.3af Powered Devices (PDs)
- Onboard 100V, 400mA Power MOSFET
- Precision Dual Level Current Limit
- Onboard 25k Signature Resistor with Disable
- Programmable Classification Current (Class 0-4)
- Undervoltage Lockout
- Thermal Overload Protection
- Power Good Signal
- Available in 8-Pin SO and Low Profile (3mm × 3mm) DFN Packages U APPLICATIO S
- IP Phone Power Management
