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PD70224 is a dual pack of MOSFET-based full-bridge rectifiers.

Product Detail

PD70224 is a dual pack of MOSFET-based full-bridge rectifiers. It contains low-RDS 0.15Ohm N-channel MOSFETs for much higher overall efficiency and higher output power, particularly when used in Powered Devices for Power over Ethernet (PoE) applications. The entire drive circuitry for driving the MOSFETs is on-chip, including a charge pump for driving the high-side N-channel MOSFETs. The total forward drop (bridge offset) introduced by the IdealBridgeâ„¢ rectifier is only 180mV at 0.6A, compared to a standard bridge rectifier that typically presents 2000mV of forward drop. PD70224 IdealBridgeâ„¢ can support over 1A current, making it the ideal choice not only for modern energy-saving 2-pair applications compliant with IEEE802.3af and IEEE802.3at (Type 1 and Type 2), but also 4-pair Powered Devices such as for UPOE (51W) and POH (Power over HDBase-T, 73W). In addition, PD70224 is capable of helping to identify at the physical layer itself whether a 2-pair PSE or a 4-pair PSE is providing power over the cable. It does that by sensing the voltage on the line (un-rectified) side of the pairs.

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