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PM8805

STMicroelectronics
Part Number PM8805
Manufacturer STMicroelectronics
Description IEEE 802.3bt PoE-PD interface
Published Mar 24, 2020
Detailed Description PM8805 IEEE 802.3bt PoE-PD interface with embedded dual active bridge VFQFPN43 8x8mm exposed pad Features  Dual activ...
Datasheet PDF File PM8805 PDF File

PM8805
PM8805

Overview
PM8805 IEEE 802.
3bt PoE-PD interface with embedded dual active bridge VFQFPN43 8x8mm exposed pad Features  Dual active bridge, hot swap MOSFETand PoE-PD interface in a system-in-package  100 V N-ch MOSFETs with 0.
2 Ω total path resistance for each active bridge.
 100 V, 0.
1 Ω high-side N-ch hot swap MOSFET  PoE-PD single-signature interface compliant with IEEE 802.
3bt / at / af  Supports 4-pair PoE applications  Supports 12 V auxiliary sources  Identifies which kind of PSE (standard or legacy) is connected with and provides successful IEEE802.
3bt / at / af classification indication as a combination of the T0, T1 and T2 signals (open drain)  Smart operational modes  Programmable classification current with 3.
3 ms delay.
 Optional Autoclass feature  Advanced energy-saving MPS timings  Two-step hot swap current protection: DC with 1 ms delay and short-circuit with 10 us delay.
 Controlled pre-charge of the output capacitor  PGD signal (open drain) to enable an external PWM...


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