PD70224 - Microchip

PD70224 Dual MOSFET-Based Bridge Rectifier

...4 1.1. Purpose of Charge Pump....5 1.2. Purpose and Use of Supply Pins...

Features

• Active circuit with low forward-drop to replace dissipative passive diode bridges
• Self-contained drive circuitry for MOSFETs
• Designed to support IEEE 802.3af/at/bt, Universal PoE (UPOE), and Power over HDBase-T (PoH)
• Integrated 0.16 Ω N-Channel MOSFETs for 0.32 Ω total path resistance
• “Power present” indicator signals for identifying 4-pair bridge power
• Dedicated pin to implement adapter priority
• Low leakage, <10 μA during detection
• Wide operating voltage range up to 57 V
• -40 °C to 85 °C ambient
• Available in 40-pin package
• MSL3, RoHS compliant Applications
• Power over Et.