This is one Power over Etherent power module / PoE splitter which has a wide operating voltage of 48V to 57V, a rated output voltage of 12v, a current of 3.75A, and a maximum output power of 45W. It conforms to the IEEE802.3 af at bt standard and is classified as Type 4. It has superior reliability such as over-current, under-voltage, short circuit protection, and anti-surge protection. It can be used in security video surveillance, LoRa gateway equipment, data acquisition terminals, and Internet of Things terminals.

Main Features

●Compliance with IEEE802.3at&IEEE802.3bt standard.

●48V~57V wide operating voltage range.

●Maximum output power up to 45W; Rated output: 12V/3.75A.

●The output ripple is less than 200 mV.

●Conversion efficiency can be as high as 90% (input: 48V output)[email protected]).

● Withovercurrent, short circuit, under voltage, surge andother excellent reliability and circuit protection.

●PCBA standard size: 110mm*40mm*12mm

●Input/Output: isolate 1500Vdc.

●High reliability: The design meets the 5 million hour average failure interval.

Dimension

1. pin definition

Pin	Name	Describe
1	VA1	This input pin is connected with va2 and the central tap connected to the transformer, to pin 1 and pin 2 of RJ45 connector (Rx).
2	VA2	This input pin, together with va1 and, is connected to the transformer’s central tap, to pins 3 and 6 of the RJ45 connector (TX).
3	VB1	This input pin is used with VB2 and connected to pins 4 and 5 of the RJ45 connector – it is not polarity sensitive.
4	VB2	This input pin is used with VB1 and connected to pins 7 and 8 of the RJ45 connector – it is not polarity sensitive.
5	Vout	DC output of the positive pole. This pin provides a positive regulation output
6	Vout	DC output of the positive pole. This pin provides a positive regulation output
7	GND-	Negative DC output. This pin provides a negative regulation output
8	GND	Negative DC output. This pin provides a negative regulation output

2.Electrical characteristics

2.1 Absolute maximum rating parameter

No	Parameter	Symbol	MIN	MAX	Units
1	DC Voltage	VCC	48	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.

2.2 Recommended working conditions

No	Parameter	Symbol	MIN	TYP	MAX	Units
1	input voltage	VIN	42	48	57	V
2	Low Voltage Lock	VLOCK	37	–	–	V
3	Working temperature	TOP	-40	25	80	℃

*Applicable only to WC-PD45L120 maximum operating temperature.

2.3 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	–	3.75	4	A	Wide voltage input 48-57V
3	Power adjustment rate	VLINE	–	0.1	–	%	@50% Load
4	Load Adjustment Rate	VLOAD	–	1	–	%	@VIN=48V
5	Ripple Output Noise	VRN	–	150	250	mVp-p	@Maximum Load
6	Minimum Load	RLOAD	10	–	–	mA
7	Short circuit duration	TSC	–	–	∞	sec
8	Efficiency (load 80%)	EFF	85	90	–	%
9	Isolation Voltage (I/O)	VISO	–	–	1500	VPK
10	Temperature coefficient	TC	–	0.02	–	%	Per ℃
11	Efficiency	Tr	–	150	250	ms	Vin=48V Vout=max

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