MAX5986AETE+

The MAX5986AETE+ is an IEEE 802.3af-compliant, high-efficiency, Class 1/Class 2, PDs with integrated DC to DC converter in 16 pin TQFN package. It provides a complete power-supply solution as IEEE® 802.3af-compliant Class 1/Class 2 powered devices in a Power over Ethernet system. The device integrates the PD interface with an efficient DC to DC converter, offering a low external part count PD solution. The MAX5986A include sleep and ultra-low power modes. The PD interface provides a detection signature and a Class 1/Class 2 classification signature with a single external resistor. The PD interface also provides an isolation power MOSFET, a 60mA (max) inrush current limit and a 323mA operating current limit. The integrated step down DC-DC converter uses a peak current-mode control scheme and provides an easy-to implement architecture with a fast transient response. It operates at a fixed 215KHz switching frequency.

• Wide input voltage range from 8.7V to 60V
• Protects against overload, output short circuit, output overvoltage and overtemperature
• Integrated TVS diode withstands cable discharge event (CDE)
• PoE class 1/class 2 classification set with single resistor
• Intelligent maintain power signature (MPS) complies with IEEE 802.3af specification
• Simplified wall adapter interface
• Pass 2KV, 200m CAT-6 cable discharge event
• Sleep and ultra low power mode
• Frequency foldback for high-efficiency light-load operation, Back-bias to optimize efficiency
• Hiccup-mode runaway current limit, 49mA (typ) inrush current limit

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party