AS1851A 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 pliant 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 pliant PD integrated...
AS1851A Key Features
- Type 1 and Type 2 IEEE® 802.3af & 802.3at pliant PD
- Automatic PoE-Plus (Type 2) detection in HW and I2C Modes
- Low Resistance PD Power FET Switch (0.5 typical)
- High-efficiency DC-DC Controller with Digital Optimization
- Primary-Secondary High-voltage integrated Digital Isolation
- Programmable Primary Clock Frequency Local-power operation
- Synchronous Controller with programmable power-FET timing
- Programmable PWM Frequencies synched to External Clock
- Hardware programmable start-up power sequencing
- Primary-side power monitoring & control from Secondary-side
AS1851A Applications
- Industrial Temperature Range, -40°C to 85°C