LTC4259A Description
U U LTC4259A Quad IEEE 802.3af Power over Ethernet Controller with AC Disconnect.
LTC4259A Key Features
- Controls Four Independent
- 48V Powered Ethernet Ports
- Each Port Includes
- IEEE 802®.3af pliant PD Detection and Classification
- Output Current Limit with Foldback
- Short-Circuit Protection with Fast Gate Pull-Down
- PD Disconnect Using AC or DC Sensing
- Power Good Indication
- Operates Autonomously or Controlled by I2CTM Serial Interface
- 4-Bit Programmable Digital Address Allows Control of Up to 64 Ports