STMicroelectronics | PM8800A

The PM8800A integrates a standard power over Ethernet (PoE) interface and a current mode PWM controller to simplify the design of the power supply sections of all powered devices.

Features:

• IEEE 802.3af compliant PD interface
• Works with power supplied from Ethernet LAN cables or from local auxiliary sources
• Integrated 100 V, 0.5 O, 800 mA hot-swap MOSFET
• Integrated signature resistor
• Programmable in-rush current limit
• Programmable classification current
• Programmable DC current limit up to 800 mA
• High voltage start-up bias regulator
• Thermal shutdown protection
• Current mode pulse width modulator
• Programmable oscillator frequency
• Programmable soft-start
• Power good indication
• 80 % maximum duty cycle with internal slope compensation
• Supports both isolated and non-isolated Applications
• HTSSOP16 package

Applications:

• VoIP phones, WLAN access points
• Security cameras
• PoE powered device appliances
• High power (>12.95 W) powered devices