Interface controller extends end-to-end power delivery efficiency

Analog Devices LT4293 Interface Controller is an LTPoE++/IEEE 802.3af/at/bt-compliant powered device. The T2P output differentiates between LTPoE++ and IEEE 802.3bt PSE during mutual identification and negotiation of available power. The device uses an external, low RDS(ON), N-channel, hot-swap MOSFET. It supports the LT4320/LT4321 ideal bridges, to increase the end-to-end power delivery efficiency and remove costly heat sinks. The device comprises a good power output, onboard signature resistor, undervoltage lockout, and thermal protection. Startup inrush current is adjustable with an external capacitor. Auxiliary power override is supported as low as 9V with the AUX pin.

Typical applications include high power wireless data systems, outdoor security camera equipment, commercial and public information displays, and high temperature industrial applications.