MAX5996CATE+

MAX5996CATE+ is an IEEE 802.3bt-compliant, powered device with power telemetry and power/current limit. It provides a complete interface for a powered device (PD) to comply with the IEEE® 802.3af/at/bt standard in a power-over-ethernet (PoE) system with a detection signature, classification signature, and an integrated power switch with startup inrush current control. During the startup period, this device limits the current to 135mA and it switches to a higher current limit when the power MOSFET is fully enhanced. When working with dc-dc controller IC, the MAX5996C features a constant power/current limit when the port power/current consumption reaches the PSE power/current limit. This device can withstand a maximum voltage of 100V at the input. It is used in applications such as IEEE 802.3bt powered devices, VOIP phones, IP security cameras, wireless access points, small cells, pico cells, lighting, and building automation.

• IEEE802.3bt compliant, built-in 90W isolation switch, multi-classification
• Multi-event power level indication, simplified wall adapter interface
• Inrush current limit during startup, current limit during normal operation
• Overtemperature protection, auto class, intelligent MPS (patent US9152161)
• Input offset current (detection mode) is 10µA maximum at (VIN = 1.4V up to 10.1V)
• VIN supply current is 1.2mA typical at (MOSFET is ON and No load)
• VIN deglitch time is 120µs typical at (VIN falling from 40V to 20V)
• Effective differential input resistance (detection mode) is 25Kohm typ at (TA = +25°C)
• Constant power/current limit, LLDP/power telemetry
• Operating temperature range from -40°C to +125°C, 16-pin TQFN EP package

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