1.Product characteristics

• Compatible with IEEE802.3at standard devices.
• 42V~57V wide operating voltage range.
• Maximum output power up to 24W; Rated output: 12V/2A.
• The output ripple is less than 150 mV.
• Conversion efficiency can be as high as 88% (input 48V, output)12V@2A).
• Combined with several protection functions such as temperature control protection, current limit, high voltage internal switch, etc.
• Input/Output: isolate 1500Vdc.
• High reliability: design meets 5 million hours average failure interval

2.Scope of application

• IEEE 802.3at Compatible Devices
• Video and VoIP Phone
• PoS terminal, RFID terminal
• Fiber to Home (FTTH) Terminal

3.Describe

The POE PS30-5712T series module combines the PSE network power separation module. It can transmit data and power to non-PoE receiving devices without additional separators. The signal transmission is up to 100 meters in 10/100Mbps.

It can be freely matched with more than 85% PC modules in the market, and can also be used to power and separate the network for other devices that need PoE function.

The PS30-5712T control circuit provides the power device (PSE) required by PoE for compatibility signature and power classification, has complete protocol detection and then adds 25W power to the port.

Auto Maintain Power Characteristics (MPS) - Auto-adjust MPS for Class 1-2 or Class 3-4 PSEs - Supports ultra-low power standby mode, main adapter priority input, etc. Also has a long soft start cycle for efficient DC/DC converters to ensure IEEE802.3at start-up requirements are met. 

4.Pin foot definition

Dimensions are physical (mm)

Pin	Name	Describe
1	GND	This pin provides a negative adjustment output connected to the eight legs to provide a negative electrode for the LED.
2	LED	This pin reserves LED-R indicators for the network ports and can be set up by itself.
3	TX+	This pin is the transmission of network TX signals.
4	TX-	This pin is the reception of network TX signals.
5	RX+	This pin is the transmission of network RX signals.
6	RX-	This pin is the transmission of network RX signals.
7	GND	Negative DC output.This pin provides negative adjustment output
8	Vout	The DC output of the positive pole.This pin provides positive adjustment output

5. Electrical characteristics

5.1 Absolute maximum rating parameter

No	Parameter	Symbol	MIN	MAX	Units
1	Input DC Voltage	VCC	42	57	V
2	DC Voltage Surge 1ms	VSURGE	-0.6	65	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.

The maximum rating assumes free air flow.

5.2 Recommended working conditions

No	Parameter	Symbol	MIN	MAX	Units
1	Input voltage	VIN	42	57	V
2	Low Voltage Lock	VLOCK	35	-	V
3	Working temperature	TOP	-40	80	℃

*Applicable only to the highest operating temperature of PS24-5712T.

5.3 output characteristic

No	Parameter	Symbol	MIN	TYP	MAX	Units	Test Opinions
1	Standard Output Voltage	+VDC	11.7	12.0	12.2	V	VIN=48v
2	Output Current (VIN=48V)	PWR	-	2.5	3	A	Wide voltage input 42-57V
3	Power adjustment rate	VLINE	-	0.1	-	%	@50% Load
4	Load Adjustment Rate	VLOAD	-	1	-	%	@VIN=48V
5	Ripple Output Noise	VRN	-	100	150	mVp-p	@Maximum Load
6	Minimum Load	RLOAD	5	10	-	mA
7	Short circuit duration	TSC	-	-	∞	sec
8	Efficiency (load 80%)	EFF	-	88	-	%
9	Isolation Voltage (I/O)	VISO	-	-	1500	VPK
10	Temperature coefficient	TC	-	0.02		%	Per ℃
11	Dynamic response	TS	-	60	100	ms

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.