The five-port single-pair Power over Ethernet PSE controller supports IEEE 802.3cg SPoE systems using standardized power and Ethernet data over a single-pair cable. It operates from a 6 V to 60 V input supply and is designed for 24 V or 54 V powered-device systems. External N-channel MOSFETs provide high-side power switching with adjustable source and return electronic circuit breakers. The device supports SCCP classification, maintain full voltage signature detection, PD sleep and wake-up functions, telemetry, and software control through an SPI interface with packet error code protection. The 48-lead 7 mm × 7 mm plastic QFN package is specified for a −40°C to +125°C operating junction temperature range.
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| Function | 5-port SPoE PSE controller |
| Ethernet power standard | IEEE 802.3cg compliant |
| Number of PSE ports | 5 |
| Input supply operating range | 6 to 60V |
| Input supply current, power-on state | 6.5 typ, 10 maxmA |
| Input supply current, sleep state | 52 typ, 140 maxµA |
| Input supply current, disabled state | 51 typ, 135 maxµA |
| Internal regulator voltage | 4.1 min, 4.3 typ, 4.5 maxV |
| Analog foldback current-limit threshold | 177 min, 186 typ, 193 maxmV |
| Sleep state output voltage | 3.15 min, 3.4 typ, 3.575 maxV |
| SPI clock frequency | 1MHz |
| Source current readback ADC resolution | 11bits |
| Global ADC voltage readback full-scale, low gain | 72.09V |
| Internal temperature sensor weight | 0.25°C/LSB |
| Thermal shutdown junction temperature | 175 typ°C |
| Operating junction temperature range | -40 to +125°C |
| Package | 48-lead 7 mm × 7 mm QFN |
| RoHS | Compliant |
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