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Monolithic Power Systems MP8004 | Demoboard EV8004-QW-00A
13W 802.3af PoE Powered Device Interface with Flyback DC-DC Converter EV Board
Overview
| Topology | Flyback Converter |
| Input voltage | 36-57 V |
| Output 1 | 12 V / 1 A |
| IC revision | 1.0 |
Description
The MP8004 is an integrated IEEE 802.3af PoEcompliant Powered Device (PD) power supplysolution. It includes a PD interface and anisolated/non-isolated flyback converter.The PD interface includes detection andclassification modes as well as a 100V outputpass device. Inrush current limit is included toslowly charge the input capacitor.The DC-DC converter includes a 150V powerswitch and is capable of delivering 13W outputpower with high efficiency. It has an internalsoft-start, auto-retry, over current, short circuit,and over voltage protection. It can also skipcycles during light load condition.The MP8004 is available in thermally enhanced4x6mm QFN20 package.
Features
Meets IEEE 802.3af Specifications
- 100V, 1Ω Integrated Pass Switch
- 420mA DC Input Current Limit
- 150V, 0.45Ω Integrated Switch for PowerConverter
- Cycle-by-Cycle Switching Current Limit
- Integrated 100V Startup Circuit
- Programmable Switching Frequency
- Duty Cycle Limiting with Line Feed Forward
- Internal Slope Compensation
- OCP, SCP and OTP Protection
- 4x6mm QFN20 Package
Typical applications
- Small-cell Base Stations
- Security Camera Systems
- VoIP Telephones
- Safety Backup Power
- Remote Internet Power
- Wireless Access Points/Wireless LAN