DTI Ethernet network transformer power supply manager TPS23841 can transmit 25W power supply

Ti has introduced a fully integrated Poe management device, which enables multi port enterprise systems to transmit up to 25W of power through standard Ethernet cables. The power supply equipment (PSE) manager, with the working temperature between - 40 ℃ and + 125 ℃, can manage the Ethernet power consumption equipment (PD) with twice the power of the previous generation IEEE 802.3af standard compatible system, so as to realize many applications such as commercial, industrial, medical and military fields to choose the price of RJ45 connector. TPS23841, the Ethernet power supply manager of Texas Instruments, can transmit 25W power supply ti. TPS23841 four port Poe chip not only can provide power management control and protection, but also can safely provide up to 665ma current for each port in the input voltage range of 21.5v-57v. The device's extremely wide input voltage range enables designers to support a variety of 24 V emerging medical and industrial applications, such as ward call center system and human-computer interaction equipment.

TPS23841 can integrate several important components on a single chip, including integrated switch, detection resistor and four independent 15 bit analog-to-digital (A / D) converters, so as to greatly simplify the POE design, and enable the device to accurately measure signature resistance, voltage, current and bare chip temperature. The device can also be designed with Ti tps2384 PSE power manager, and RJ45 connector can be selected to realize high power standard Poe operation in the system running the same integrated software. In addition, TPS23841 can also provide three different mode options, including automatic mode, semi-automatic mode and manual mode, so as to provide designers with higher flexibility to fully meet the specific Poe system requirements. In the manual mode, TPS23841 can work in collaboration with a Ti MSP430 ultra-low power microcontroller, for example, to detect existing capacitive loads.

TPS23841 high power Poe device can fully meet the requirements of 8-pin tps2376-h controller introduced by Ti for Ethernet PD. This high power device controller has all the safety features needed for PD development, such as programmable 600 ma current limit and thermal shutdown function, automatic retry and fault protection function. In addition, tps2376-h enables designers to implement non-standard PDS and provide up to 26 w of power to these devices through PSES with a minimum input voltage of 52 V and Ethernet cables of category 5 over 100 meters.

PD controller and TPS23841 manager can be compatible with the latest decision of IEEE 802.3at Standard Committee, which is mainly responsible for defining the emerging Poe + standard. Ethernet power supply technology product series Ti PD controller and PSE Manager IC that meet IEEE 802.3af standard can manage power through multiple Ethernet ports. Taking full advantage of its strong mass production capacity and superb system expertise, Ti Poe products are widely favored by major user groups around the world. Ti is not only a founding member of the poetec alliance and the University of New Hampshire Poe alliance, but also presided over the high power Poe standards working group of IEEE 802.3at Standards Committee.