1.Product characteristics
- Compliant with IEEE802.3af standard
- 38V~57V wide operating voltage range.
- Maximum output power up to 9W；Rated output：5V/1.8A.
- The output ripple is less than 150 mV.
- Conversion efficiency can be as high as 88% (input: 48V output)5V@1.8A).
- With over current short circuit under voltage surge and other excellent reliability and circuit protection.
- PCBA standard size: 21mm*14mm*14mm
- Input/Output: isolate 1500Vdc.
- High reliability: The design meets the 5 million hour average failure interval.
2. Scope of application
- Video and VoIP Phone
- RFID Reader
- Multiband Access Point
- Surveillance Camera
3. Pin definition
| Pin | Name | Describe |
| 1,2 | VIN- | This pin is the negative pole of PoE input |
| 3,4 | VIN+ | This pin is the positive pole of PoE input |
| 5,6 | VOUT- | This pin is output negative |
| 7,8 | VOUT+ | This pin is the positive pole of output |
*PoE input terminal is not equipped with rectifier bridge, pay attention to polarity!
4. Electrical characteristics
4.1 Absolute maximum rating parameter
| No | Parameter | Symbol | MIN | MAX | Units |
| 1 | DC Voltage | VCC | 38 | 57 | V |
| 2 | DC Voltage Surge 1ms | VSURGE | -0.6 | 80 | V |
| 3 | Ambient temperature | TS | -40 | 80 | ℃ |
*Exceeding the above rating may cause permanent damage to the product.Functional operations under these conditions are not recommended.
4.2 Recommended working conditions
| No | Parameter | Symbol | MIN | TYP | MAX | Units |
| 1 | Input Voltage | VIN | 38 | 48 | 57 | V |
| 2 | Low Voltage Lock | VLOCK | - | - | 37 | V |
| 3 | Working temperature | TOP | -40 | 25 | 80 | ℃ |
*Applicable only to WC-PD13M050A maximum operating temperature.
4.3 DC characteristic
| No | Parameter | Symbol | MIN | TYP | MAX | Units | Test Opinions |
| 1 | Standard Output Voltage | VDC | 4.8 | 5.0 | 5.3 | V | VIN=48v |
| 2 | Output Current (VIN=48V) | PWR | - | 1.8 | A | Wide voltage input 40-57V | |
| 3 | Power adjustment rate | VLINE | - | 0.1 | - | % | @50% Load |
| 4 | Load Adjustment Rate | VLOAD | - | 1 | - | % | @VIN=48V |
| 5 | Ripple Output Noise | VRN | - | 150 | 200 | mVp-p | @Maximum Load |
| 6 | Minimum Load | RLOAD | 10 | - | - | mA | |
| 7 | Short circuit duration | TSC | - | - | ∞ | sec | |
| 8 | Efficiency (load 80%) | EFF | 85 | 88 | - | % | |
| 9 | Isolation Voltage (I/O) | VISO | - | - | 1500 | VPK | |
| 10 | Temperature coefficient | TC | - | 0.02 | % | Per ℃ | |
| 11 | Dynamic response | TS | - | 60 | 100 | ms | VIn=48V Vout=max |
1: Typical number is 25 C, nominal voltage is 48V, for auxiliary design only.
2: Output ripple and noise can be reduced by an external filter, see the application instructions.
3: If operated under the specified minimum load, the module emits audible noise and may cause PSE malfunction.
5 Power Classification
WC-PD13M050A uses IEEE802.3af standard and runs with Class 3 (9W) power rating by default.
| Define criteria | Cable requirements | Grading parameters | Power Supply Characteristics |
| IEEE802.3at (PoE Plus) |
CAT5 cable or CAT6 cable |
Maximum power required for Class4 devices is 13W~25.5W | The DC voltage ranges from 42 to 57V,with a typical value of 48V. Typical operating current is 10~600mA;typical output power: 30W; Class4 rating supported by electrical equipment |
| IEEE802.3af （PoE） |
CAT5 cable | Maximum power required for Class0 devices is 0~12.95W | The DC voltage ranges from 40 to 57V, with a typical value of 48V. Typical operating current is 10~350mA;typical output power: 15.4W; The overload detection current is 350~500mA. Provide 4 Class Power Requests for PD Devices ranging from 3.84 to 12.95W |
| The maximum power required for Class1 devices is 0~3.84W | |||
| The maximum power required for Class2 devices is 3.85W~6.49W | |||
| The maximum power required for Class3 devices is 6.5W~12.95W |
