EVAL-LTC9101-3

Product Details

The EVAL-LTC9101-3 is a 16-channel IEEE 802.3at compliant power sourcing equipment (PSE) with autonomous power management and serial LED driver for port LEDs. The EVAL-LTC9101-3 includes the EVAL-LTC9101-3-AZ daughter card, the EVAL-LTC9101-3-MBAZ motherboard, and features the LTC9101-3 and LTC9103 PSE platform chipset.

In the EVAL-LTC9101-3, a single LTC9101-3 digital controller interfaces with up to two LTC9103, 8-channel, analog controllers for 16 power channels total. Up to sixteen IEEE 802.3af/at/bt powered devices (PDs) can be connected to the EVAL-LTC9101-3 and powered from this system using a single power supply.

The LTC9101-3 and LTC9103 use a proprietary isolated data interface allowing the LTC9101-3 to share the same logic supply as the host controller and eliminate the need for an additional isolated 3.3 V supply. The EVAL-LTC9101-3 operates completely autonomously without a host controller, including flash configuration for power management and port LEDs. Port Status and Fault LEDs quickly show PoE status for up to sixteen ports, including fault codes, driven by the LTC9101-3 using a serial LED driver. A Supply Overload LED warns if system power usage is near the power budget and indicates if port power is denied or revoked.