AS1851A

AS1851A/31A — Digital Power PoE PD Controllers w/HV Isolation & Synchronous DC-DC Converter GENERAL DESCRIPTION The AS1851A and AS1831A devices each integrate Akros GreenEdge™ High Voltage Isolation technology with Power-overEthernet (PoE) PD and Synchronous DC-DC power conversion technology. The AS1851A includes a 13W/25W (Type 1 and Type 2) IEEE®802.3af/at compliant PD integrated with high-voltage isolation and a digital power Synchronous DC-DC converter. The AS1831A includes a 13W (Type 1) IEEE®802.3af/at compliant PD integrated with high-voltage isolation and a digital power Synchronous DC-DC converter. In addition to enabling digital PoE power conversion, Akros GreenEdge™ isolation enables direct digital management of both isolated Primary power and Secondary system power for real time end-to-end Green Power application capabilities. TYPICAL APPLICATIONS  Voice-over-IP (VoIP) phones  Wireless LAN & WiMAX access points (WAP)  Pan, Tilt, Zoom (PTZ) Cameras, IP cameras  Thin-client and notebook computers  Fiber-to-the-home (FTTH) terminals  Point-of-sale (PoS) terminals, RFID readers ORDERING INFORMATION The AS1851A and AS1831A pin-compatible devices are available in 64-lead QFN Reduction of Hazardous Substance (RoHS) compliant packages. Part # Type 1 Type 2 Hardware PD PD Mode AS1851A* x x x AS1831A* x x * Industrial Temperature Range, -40°C to 85°C Software Mode x x Pwr In (W) 13/30 13 SIMPLIFIED APPLICATION DIAGRAM FEATURES Digitally Isolated P...