The LTC9101-1, LTC9102, and LTC9103 chipset is a 48-port power sourcing equipment (PSE) controller designed for use in IEEE 802.3at Type 2 and IEEE 802.3bt Type 3 and 4 compliant PoE systems.
The LTC910x chipset delivers lowest-in-industry heat dissipation by utilizing low RDS(ON) external MOSFETs and 0.1 Ω sense resistance per power channel. A transformer-isolated communication protocol replaces expensive opto-couplers and complex isolated 3.3V supply, resulting in significant BOM cost savings.
Options in the LTC910x family:
- LTC9101-1: 48-Port IEEE802.3bt (PoE 2) PSE Digital Controller
- LTC9102: 12-Channel PSE Analog Controller to Pair with LTC9101
- LTC9103: 8-Channel PSE Analog Controller to Pair with LTC9101
Key Features and Benefits
- System-level PoE platform provides a software-defined AFE, simplifying system implementation and extending performance
- System thermal dissipation is dramatically reduced, simplifying thermal management for high port count systems
- -20V to +80V abs max ratings and improved hot swap loop allows the LTC910x system to ride through large surges and minimize BOM
Applications
- Communications: Ethernet switch, network switch, PoE, midspan
- General Purpose
- Building and Infrastructure
- Industrial Automation
Evaluation Board
The LTC910x can be evaluated with the DC3160A-A-KIT.
Block Diagrams and Tables
