EOS Power-Open Frame Medically Approved AC/DC Switch Mode Power Supplies

WLT40

The EOS Power Economical Green Series was designed with the value focused customer in mind. The WLT Green Series offers market leading specifications in industry standard footprints at very competitive price levels.

FEATURES

40 W convection cooled rating.
Small 4.0”x2.0”x1.2” inch form factor.
High efficiency > 85 %.
Single to triple outputs.
Low conducted and radiated noise.
No Load Power< 0.3 W
Class I & Class II options.
Cover Kit accessory available.
Meets standard IEC60601-1-2 : 2014 (4th Edition)..

Input Specifications

Input Voltage	90-264 V, Universal
Input Frequency⁴	47-400Hz
Input Current	0.85 A max @ 120 VAC AND 0.45 A max @ 230 VAC
No Load Power	< 0.3W for single output models < 0.5W for multi output models
Inrush Current	30 A max @ 120 VAC AND 60 A max @ 230 VAC

Output Specifications

Output Voltage	From 5 V to 58 V (Refer model number matrix table)
Output Power	40 W
Hold-up Time	>10 ms @ 120 VAC typical
Line Regulation	+/-0.3 %
Load Regulation	V1: +/-0.5 %; V2 & V3: +/-5 %
Minimum Load	Refer model number matrix table.
Transient Response	max excursion 10 %; 50-100 % step load change at 0.1A/uS slew rate, 50 % duty cycle, 50/60Hz, recovery time < 5 ms.
Ripple¹	Refer model number matrix table.
Rise Time	< 100 ms
Set Point Tolerance	V1: +/-3 %; V2 & V3: +/-5 %
Output Voltage Adjustment	V1:+/- 10 %
Over Current Protection	130 % typical above rating
Over Voltage Protection	130 % typical for V1 only
Short Circuit Protection	Short term, auto recovery
Cooling	Convection

General Specifications

Efficiency⁵	120 VAC: 85 % typical AND 230 VAC: 85 % typical
Isolation Voltage	Min. 4242 VDC between input to output
MTBF	1.87m Hours, Telcordia -SR332-issue 3
Switching Frequency	Approximately 67 kHz
Leakage Current	120 VAC: < 500 μA AND 230 VAC: < 1000 μA
Dimensions	4.0 x 2.0 x 1.2 inches (101.6 x 50.8 x 30.48 mm)
Weight	150 gm approx

Environmental Specifications

Operating Temperature	-20 to 70°C, refer derating curve,-20 to 0°C,startup is guaranteed
Storage Temperature	-40 to +70°C
Relative Humidity	95 % Rh, non condensing
Altitude	Operating: 10,000 ft.; Non-operating: 40,000 ft

Model Number	Voltage	Max.Load²	Min. Load⁵	Ripples³
LFWLT40-1000	V1=5.1 V	8.0 A	0.00 A	1 %
LFWLT40-1001	V1=12 V	3.5 A	0.00 A	1 %
LFWLT40-1002	V1=15 V	2.7 A	0.00 A	1 %
LFWLT40-1003	V1=24 V	1.7 V	0.00 A	1 %
LFWLT40-1004	V1=48 V	0.83 V	0.00 A	1 %
LFWLT40-3000	V1=5.2 V, V2=12.5 V, V3=-12.8 V	V1=6.0 A, V2=2.0 A, V3=0.5 A	V1=0.5 A, V2=0.1 A, V3=0.0 A	1 %
LFWLT40-3001	V1=5.2 V, V2=23.8 V, V3=-12.8 V	V1=6.0 A, V2=1.0 A, V3=0.5 A	V1=0.5 A, V2=0.1 A, V3=0.0 A	1 %
LFWLT40-3002	V1=5.2 V, V2=15 V, V3=-15 V	V1=6.0 A, V2=1.5 A, V3=0.5 A	V1=0.5 A, V2=0.1 A, V3=0.0 A	1 %
LFWLT40-3003	V1=3.3 V, V2=5.2 V, V3=-12.8 V	V1=6.0 A, V2=3.0 A, V3=0.5 A	V1=1.0 A, V2=0.1 A, V3=0.0 A	V1=1.5 %, V2, V3=1 %
LFWLT60-CK metal cover kit accessory

General Notes:

Specifications are for nominal input voltage, 25°C and max. load unless otherwise stated.
Derate output power linearly to 80% from 90 VAC to 80 VAC input.
Please refer mechnical outline drawing for height of component above and below PCB for - 1xxx and 3xxx.
Class II version available. Add "-2" suffix at the end of the Model Number to Order. Enquire with EOS Sales Rep before Order.

Notes:

Ripple is peak to peak with 20 MHz bandwidth and 10 μF (Tantalum capacitor) in parallel with a 0.1 μF capacitor at rated line voltage and load ranges.
Min Load specified to meet cross regulation.
Maximum current per output channel. Do not exceed total output power rating.
Safety approved 47-63 Hz.
For WLT40-3003 efficiency is 75 % typical.

Derating Curve

De-rate linearly from 100 % at 50°C to 50 % at 70°C

EMC

Parameter	Conditions/Description	Criteria
Conducted Emissions	EN55032-B, CISPR22-B, FCC PART15-B	Pass
Radiated Emissions	EN 55032 B	Pass
Input Current Harmonics	EN 61000-3-2	Class A
Voltage Fluctuation and Flicker	EN 61000-3-3	Pass
ESD Immunity	EN 61000-4-2	Level 3, Criterion A
Radiated Field Immunity	EN 61000-4-3	Level 3, Criterion A
Electrical Fast Transient Immunity	EN 61000-4-4	Level 3, Criterion A
Surge Immunity	EN 61000-4-5	Level 3, Criterion A
Conducted Immunity	EN 61000-4-6	Level 3, Criterion A
Magnetic Field Immunity	EN 61000-4-8	Level 3, Criterion A
Voltage dips, interruptions	EN 61000-4-11	Criterion A & B

Safety

CE Mark	Complies with LVD Directive
Safety Standard(s)	IEC60950-1(ed.2), EN60950-1, UL60950-1 (2nd Edition),CSA C22.2 No. 60950-1 (2nd Edition), Class1 SELV IEC 62368-1:2014 ,EN 62368-1:2014 ;A11
Approval Agency	Nemko, UL, C-UL
Safety File Number(s)	Class I UL: Certificate Number: E150565, Nemko: Certificate No: P13216531, CB Test Certificate No: NO72727 Nemko: Certificate No: P19223597, CB Test Certificate No: NO106818 Class II UL: Certificate Number: E150565, Nemko: Certificate No: P13216532, CB Test Certificate No: NO72729

Downloads

CB Class - I Certificate
CB Class - II Certificate
Nemko Class - I Certificate
Nemko Class - II Certificate
UL Class - I Certificate

Mechanical Specifications

AC Input Connector (J1)	Molex: 26-60-4030 or equivalent Mating: 09-50-3031; Pins: 08-50-0106	Pin 1 Pin 2	AC LINE AC NEUTRAL
DC Ouput Connector (J2)	Tyco: 640445-6 or equivalent Mating: 647402-6; Pins: 3-647409-1	Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6	V1 V1 RTN RTN V3 V2
Signal Connector (J3)	Molex: 22-23-2021 or equivalent Mating: 22-01-2021	Pin 1 Pin 2	+V1 SENSE -VE SENSE
EARTH (J4) Spade Connector	Molex: 19705-4301 Mating: 19003-0001		EARTH