Linear Technology LTC4274 single-channel PoE controller
Linear Technology has introduced the LTC4274, a single-channel power over ethernet controller for power sourcing equipment required to provide IEEE 802.3at (25.5 W) or proprietary higher power levels.
The device provides up to 100 W over four-pair ethernet cabling and is fully compliant with the IEEE 802.3at PoE+ standard and backward compatible with the earlier IEEE 802.3af PoE standard.
To help conserve power, the controller delivers low heat dissipation by using low RDS(ON) MOSFETs and 0.25 Ω sense resistors.
Advanced power management includes prioritised fast shutdown, 14.5-bit voltage and current readback, 8-bit programmable current limits and 7-bit programmable overload current limits. A 1 MHz I2C interface allows a host controller to digitally configure the IC or query port readings.
Phone: 02 9644 7722
Steatite Q-par Antennas 0.5-8 GHz wideband spiral antenna
Steatite Q-par Antennas has launched the 0.5-8 GHz right- or left-hand circularly polarised...
PennEngineering microPEM TackPin fasteners
The microPEM TackPin fasteners are designed for compact sheet-to-sheet attachments, replacing...
HeTech and Surface Technology International contract electronics manufacturing
Electronic design and manufacturing company HeTech has announced its partnership with contract...
