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13W PoE电源

型号:WC-PD13T120A

产品介绍

1.Product characteristics

  • Compliant with IEEE802.3af standard
  • 38V~57V wide operating voltage range.
  • Maximum output power up to 13W;Rated output:12V/1.1A.
  • The output ripple is less than 150 mV.
  • Conversion efficiency can be as high as 88% (input: 48V output)12V@1.1A).
  • With over current short circuit under voltage surge and other excellent reliability and circuit protection. 
  • PCBA standard size: 50.8mm*14mm*17mm
  • 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  VA1 This input pin is used in conjunction with VA1 and connects to the centre tap of the transformer connected to pins 1& 2 of the RJ45 connector (RX) - it is not polarity sensitive. 
2 VA2 This input pin is used in conjunction with VA2 and connects to the centre tap of the transformer connected to pins 3& 6 of the RJ45 connector (TX) - it is not polarity sensitive.
3 VB1 This input pin is used in conjunction with VB1 and connects to pin 4 & 5 of the RJ45 connector - it is not polarity  sensitive.
4 VB2 This input pin is used in conjunction with VB2and connects to pin 7 & 8 of the RJ45 connector - it is not polarity  sensitive. 
5 VOUT- Is the negative output of the PD.
6 VOUT+ Is the positive output of the PD. 
7 NC Positioning hole.

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 - - 35 V
3 Working temperature TOP -40 25 80

*Applicable only to WC-PD13T120A maximum operating temperature.

4.3 DC characteristic

No Parameter Symbol MIN TYP MAX Units Test Opinions
1 Standard Output Voltage VDC 11.5 12.0 12.2 V VIN=48v
2 Output Current (VIN=48V)  PWR - 1.1 1.2 A      Wide voltage input 38-57V
3 Power adjustment rate VLINE - 0.1 - % @50% Load
4 Load Adjustment Rate VLOAD - 1 - % @VIN=48V
5 Ripple Output Noise VRN - 100 200 mVp-p @Maximum Load
6 Minimum Load RLOAD 20 - - 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-PD13T120A uses IEEE802.3af standard and runs with Class 3 (13W) 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 38 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