IEEE 802.3bt-Compliant, Powered Device Interface Controller


  • Fully supports IEEE® Std. 802.3bt
  • Supports Input Power Levels Up to 90W
  • Compatible with both IEEE® Std. 802.3af/at
  • Support Class 0-8 for PD
  • Robust Type 1, 2, 3 and 4 PSE detector with proprietary digital filtering line noise
  • Auto-adjust Maintain Power Signature (MPS) for Type 1-4 PSE
  • Supports up to 5 Event Classification
  • Programmable DC current limit up to 2.3A for 90W applications
  • IEC 61000-4-2/3/4/5/6 requirements for EMC Compliance
  • Exceptional EMI performance
  • Low Rds-on 100V Hot-Swap FET (typical 0.1Ω)
  • Integrated Short-Circuit Protection
  • Over temperature protection
  • Seamless support for local power down to 9.5V
  • Supports Low Power Standby Modes
  • 5×5 mm, 20 lead QFN Package
  • -40°C to +125°C Junction Temperature Range


  • Pan, tilt and zoom (PTZ), security and web cameras
  • Voice over IP (VoIP) phones
  • Lighting and High Power Wireless Data Systems
  • Wireless LAN access points, WiMAX terminals
  • Point-of-sale (PoS) terminals, RFID terminals
  • Thin clients and notebook computers
  • Fiber-to-the-home (FTTH) terminals

Typical Application Diagram