PoE controller adds DC/DC

Dallas – Texas Instruments’ third generation power-over-Ethernet device, the TPS23750, combines the functionality of the company’s TPS2375 powered device (PD) controller with a primary side DC/DC pulse-width modulation (PWM) controller. Thus it effectively manages device discovery and classification as well as delivery of direct-current (DC) power to an end appliance to ease implementation of Ethernet-powered systems such as IP phones, security networks, and RFID scanners. Relatively few external components are required.