Class 8 Power over Ethernet Common Specs
- Fully IEEE compliant 802.3bt interface supports
- Class 4 – 8 4-pair power
- Short maintain power signature (MPS)
- Autoclass
- Integrated DC DC converter supports flyback or forward topologies
- Peak current mode control
- Low-EMI slew rate control
- PWM switching frequency control
- External hotswap and switching FETs improve thermals
- Comprehensive protection circuitry
- Internal transient voltage suppressor
- Under voltage lockout
- Thermal shutdown protection
- Short circuit protection
- Transformer winding efficiency enhancer
- UART interface to system controller
Jump Start Your PoE Powered Device Development
PoE Powered Device (PD) design involves achieving IEEE compatibility and creating an efficient, stable, and EMI compliant power supply. Our complete portfolio of evaluation boards (EVBs) offer complete PD designs ready to be incorporated into an end system. All of our PoE PD EVBs are EMI compliant and include an IEEE compatibility report, detailed power supply performance analysis, and schematics in the user's guide.
Find the Right Class 8 90W Device
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| Part Number | Description | IEEE Specification | Maximum Output Power (W) | Package Type | Package Size (mm) | Aux Transformer Winding Input | DC DC | Efficiency (%) | Switching Frequency Range (kHz) | Temperature Range (°C) |
|---|---|---|---|---|---|---|---|---|---|---|
| PoE PD IEEE 802.3bt (Type 3 & 4) Compliant Interface | 802.3 bt Type 3 and 4 | 71 | QFN32 | 5x5 | 90 | 100 500 | -40 85 |
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Si34071 Isolated 71 W, 12 V Class 8 Evaluation Kit
The Si34071 5 V Class 8 evaluation kit demonstrates a complete 71 W IEEE 802.3bt Power over Ethernet Powered Device system using our Si34071 PoE PD device. A single Si34071 manages the PoE interface and dc-dc conversion.
Si34071 Isolated 71 W, 12 V Class 8 Evaluation Kit
The Si34071 5 V Class 8 evaluation kit demonstrates a complete 71 W IEEE 802.3bt Power over Ethernet Powered Device system using our Si34071 PoE PD device. A single Si34071 manages the PoE interface and dc-dc conversion.