MAX5969A/B: IEEE 802.3af/at-compliant PD interface controllers enable PoE+ powered devices

Additionally, integrated wall-adapter detection circuitry enables the seamless switchover from PoE power to wall power, thus simplifying PD backup-power designs. The MAX5969A/MAX5969B are well suited for high-power applications such as IP phones, wireless LAN access points, IP security cameras, and RFID readers.

These PD interface controllers provide the PD with detection and classification signatures and integrate an isolation power switch with inrush current control. During the inrush period, the devices limit the current to less than 180mA before switching to a higher current limit (720mA to 880mA) when the isolation power MOSFET is fully enhanced.

The MAX5969A/MAX5969B are available in a 10-pin TDFN-EP package and are fully specified over the -40 degrees Celsius to +85 degrees Celsius extended temperature range. Prices start at $1.21 (1000-up, FOB USA).