750W SMPS AC DC Open Frame Power Supply Single Output For BF Medical Equipment

750W AC DC Open Frame Switching Power Supply with PFC function single output

Descriptions

LOF750-20Bx series is one of Mornsun’s AC-DC miniaturize open frame power supply and suitable for all kinds of BF type(be accessible to patients) medical system equipment.It features universal AC input and at the same time accepts DC input voltage,cost-effective,low no load power consumption,high efficiency,high reliability and double or reinforced insulation.These converters offer excellent EMC performance and meet IEC/EN/UL62368,GB4943,IEC/EN60335,IEC/EN61558,IEC/EN/ES60601-1standards and they are widely used in areas of Medical, LED, street light control,electricity,security,telecommunications LED, smart home etc.

Features

• Universal 90 - 264VAC or 127 - 370VDC input voltage
• Compact size 5”× 3”
• Operating ambient temperature range: -40C to +70C
• Built-in active PFC function
• Operating altitude up to 5000m
• Output short circuit, over-current, over-voltage,
• over-temperature protection
• 450W with air cooling, 750W with 25CFM
• 5VDC standby output, 5VDC fan supply
• PG signal and remote sensing function
• Design to meet medical approvals and be suitable for
• BF type applications
• The base plate with conformal coating
• Safety according to IEC/EN62368, ES/EN60601, EN60335,GB4943

​Specifications

Output Specifications*
Item	Operating Conditions			Min.		Typ.		Max.	Unit
Output Voltage Accuracy*	Full load		12V/ 15V/24V/27V	--		±2.0		--	%
			36V/48V/54V	--		± 1.0		--
Line Regulation	Rated load			--		±0.5		--
Load Regulation	0%- 100% load			--		± 1.0		--
Ripple & Noise*	20MHz band width (peak-to-peak value)			--		--		200	V
Temperature Coefficient				--		±0.03		--	%/C
Minimum Load				0		--		--	%
Hold-up Time	25C, 115VAC/230VAC			10		--		--	ms
Stand-by Power Consumption	Room temperature, 230VAC input (PS_ON Low and 5Vsb without load (including fan))			--		--		0.5	W
Short Circuit Protection	Recovery time <5s after the short circuit disappear			Hiccup, continuous, self-recover
Over-current Protection				≥105%Io, hiccup, self-recover
Over-voltage Protection	12V			≤15.6V				Output voltage turn off, re-power on for recover
	15V			≤19.5V
	24V			≤31.2V
	27V			≤35. 1V
	36V			≤46.8V
	48V			≤60.0V
	54V			≤64.0V
Over-temperature Protection				Protection when over-temperature, recover automatically after the temperature drops
Fan Power *				The 5Vsb serves as the standby power supply and also supplies power to the fan, the maximum output current of the fan and 5Vsb is 2A
PS_ON Input Signal*	Power on	PS_ON High		2	--		5		V
	Power off	PS_ON Low		0	--		0.6
PG Signal*	Power on	The PG signal goes high with 10ms to 500ms delay after power set up		10	--		500		ms
	Power off/Power fail	The TTL signal goes low at least 1ms before output below 90% of rated value		1	--		--
	High level	High		2	--		6		V
	Low level	Low		0	--		0.6

General Specifications
Item		Operating Conditions					Min.	Typ.	Max.	Unit
Isolation Test	Input - output	Electric strength test for 1min, leakage current <10mA					4000	--	--	VAC
	Input -						2000	--	--
	Output -						1500	--	--
Insulation Resistanc e	Input - output	Environment temperature: 25±5C Relative humidity: <95%RH, non-condensing Testing voltage: 500VDC					100	--	--	MQ
	Input -						100	--	--
	Output -						100	--	--
Isolation level	Input - output						2 × MOPP
	Input -						1 × MOPP
	Output -						1 × MOPP
Operating Temperature							-40	--	+70	C
Storage Temperature							-40	--	+85
Storage Humidity		Non-condensing					10	--	95	%RH
Operating Humidity							20	--	90
Power Derating		Operating temperature derating	25CFM	12V/ 15V(700W)		+50C to +70C	2.0	--	--	%/C
				24V/27V/36V/ 48V/54V(750W)		+50C to +70C	2.0	--	--
			Air cooling	12V/ 15V(400W)		+45C to +70C	7.9	--	--	W/C
				24V/27V/ 36V/48V/ 54V (450W)	90- 175VAC (400W)	+45C to +70C	7.0	--	--
					176-264VAC (450W)	+45C to +70C	9.0	--	--
		Input voltage derating		90VAC - 1 15VAC			0.8	--	--	%/VAC
				127VDC - 162VDC			0.57	--	--	%/VDC
Safety Standard							Design refer to IEC/EN62368- 1, ES/EN60601- 1, EN60335- 1, GB4943. 1
Safety Class							CLASS I/CLASS II
MTBF		MIL-HDBK-217F@25C					>200,000 h