LTC9111
Analog Devices
The EVAL-LTC9111-AZ is an evaluation motherboard featuring the LTC9111, an IEEE 802.3cg-compliant single pair power over Ethernet (SPoE) powered device (PD) controller.
Design DocumentAnalog
EVAL-LTC9111-AZ Evaluation Board User Guide
User guide for the EVAL-LTC9111-AZ evaluation board, featuring the LTC9111 IEEE 802.3cg single-pair Power over Ethernet (SPoE) powered device (PD) controller.
Overview
The EVAL-LTC9111-AZ is an evaluation motherboard designed to demonstrate the LTC9111, an IEEE 802.3cg-compliant single-pair Power over Ethernet (SPoE) powered device (PD) controller. The board operates over a wide 2.3V to 60V range and supports power classes 10 through 15 using Serial Communication Classification Protocol (SCCP). It features active low-side rectification using external MOSFETs to minimize power loss and includes an on-board 3.3V buck regulator for logic rails. The design supports motherboard-to-shield connectivity for Ethernet PHY evaluation and provides jumpers for class selection and snubber configuration.
Use Cases
- Evaluating SPoE PD controller performance in IEEE 802.3cg systems
- Prototyping industrial Ethernet power delivery solutions
- Testing SCCP-based classification protocols
- Designing 24V and 52V SPoE power class applications
Topics
LTC9111
SPoE
IEEE 802.3cg
Powered Device
PD Controller
SCCP
10BASE-T1L
EVAL-LTC9111-AZ
Analog Devices
Referenced Parts
LTC4296-1
Analog Devices
Refer to the LTC4296-1 SCCP Wiki for more information on the classification protocol.