TI Intros PoE Technology with TPS2375 IC Controller
Texas Instruments Inc. (TI, Dallas, TX) announced its new TPS2375 integrated circuit (IC) controller and Power-over-Ethernet (PoE) plug-in power module that reduces design time and eases implementation of Ethernet-powered industrial and commercial devices such as WLAN access points, IP phones, security and point-of-sale systems.
The TPS2375 controller manages discovery, classification and delivery of dc power to a powered device, and manages the interface between the power source equipment and a commercial or industrial-powered device. The TPS2375 was created using TI's linear Bi-CMOS, silicon-on-insulator process technology, which lets the controller withstand transients up to 100 V and operate over an industrial temperature range of -40 °C to +85 °C. The device also features 15 kV system-level electrostatic device capability. In addition, the controller has an internal 0.6 ohm FET to minimize heat dissipation in the system. The controller protects the powered device by implementing a 450 mA operating current limit, thermal shutdown and in-rush current limiting. The module is available in 3.3 V, 5 V or 12 V outputs.
The TPS2375 powered device controller and the PTB48540 plug-in module are available in volume now. The TPS2375 is packaged in an eight-pin (SOIC) or eight-pin, thin-shrink, small outline package (TSSOP), and the PTB48540 comes in a 13-pin, double-sided, through-hole or surface-mount package. Suggested resale pricing is $1.25 each for the TPS2375 in quantities of 1,000 units, and $26 for the PTB48540 in quantities of 1,000.
