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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
- Safety Backup Power
- Small-cell Base Stations
- Security Camera Systems
- VoIP Telephones
- Remote Internet Power
- Wireless Access Points/Wireless LAN
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | VIN | VOut1 (V) | IOut1 (A) | Vaux (V) | L (µH) | n | ISAT (A) | LS (µH) | VT (V (AC)) | Size | IC Reference | Data rate | Ports | PoE | Improved CMRR | Operating Temperature | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 750311424 | SPEC | 7 files | WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748 | 36 V (DC) | 12 | 1 | 8 | 100 | 3:1:0.667 | 2.4 | 1.5 | 1500 | EP13 | LT3748 | – | – | – | – | -40 °C up to +125 °C | – | ||
 | 749020011A | SPEC | 9 files | WE-LAN LAN Transformer | – | – | – | – | 350 | 1:1 | – | – | 1500 | – | – | 1000 Base-T | 1 | non-PoE | Yes | -40 °C up to +85 °C | SMT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 750311424 | SPEC | |
| 749020011A | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | VIN | VOut1 (V) | IOut1 (A) | Vaux (V) | L (µH) | n | ISAT (A) | LS (µH) | VT (V (AC)) | Size | IC Reference | Data rate | Ports | PoE | Improved CMRR | Operating Temperature | Mount | Samples |
|---|