LCS75 Series
75W
AC-DC POWER SUPPLIES
CONVECTION
COOLED
The LCS series of regulated output convection cooled AC-DC power supplies are designed
to provide a cost effective solution for industrial electronics, technology and household
applications. Features include output voltage adjustment, a power ‘ON’ LED, low stand-by
power consumption, output short circuit protection, over current and over voltage protection.
Applications include auxiliary power sources, security installations, lighting control, smart home
or office control systems, ticketing and vending applications.
Features
Applications
• 75W convection cooled
• ITE, industrial and household approvals
• Integrated connector cover
• Class B conducted & radiated emissions
GP
• Input voltage range 85-264VAC
• 300VAC withstand voltage for 5s
• Output voltages from 5V to 48VDC
Household
Industrial
Electronics
• Efficiency to 91%
Instrumentation
GP
GP
Technology
Robotics
• Short circuit, overvoltage & overload protection
Dimensions
• Conformal coating option
GP
• -30°C to +70°C operating temperature
GP
3.89” x 3.82” x 1.18” (99.0 x 97.0 x 30.0 mm)
• 3 year warranty
Models & Ratings
Model Number(3)
Output Voltage
Nominal
Adjustment Range(4)
Output Current
Ripple & Noise
pk to pk(1)
Efficiency(2)
Maximum
Capacitive Load
Power
LCS75US05
5.0V
4.5 - 5.5V
14.0A
100mV
86%
10000μF
70W
LCS75US12
12.0V
10.2 - 13.8V
6.0A
120mV
88%
6000μF
72W
LCS75US15
15.0V
13.5 - 18.0V
5.0A
120mV
88%
5000μF
75W
LCS75US24
24.0V
21.6 - 28.8V
3.2A
150mV
90%
1500μF
77W
LCS75US36
36.0V
32.4 - 39.6V
2.1A
200mV
90%
1000μF
76W
LCS75US48
48.0V
43.2 - 52.8V
1.6A
200mV
91%
680μF
77W
Notes:
1. Ripple & noise measured with 20MHz bandwidth and 47μF electrolytic capacitor in parallel with 0.1μF ceramic capacitor.
2. Typical efficiencies measured at 230VAC full load.
3. Add suffix -E to model number to specify conformal coating option, MOQ applies, please contact sales.
4. Output power rating must not be exceeded.
LCS75 Series
AC-DC POWER SUPPLIES
Input
Characteristic
Input Voltage - Operating
Input Frequency
Surge Withstand
Minimum
Typical
Maximum
Units
Notes & Conditions
85
115/230
264
VAC
Derate output power linearly from 100% at 100VAC to 80% at 85VAC
373
VDC
Alternative input. Not to be used in addition to AC input. DC input not
included in safety approvals, external DC rated fuse required. Derate
output power linearly from 100% at 140VDC to 80% at 120VDC
63
Hz
120
47
50/60
300VAC for maximum 5s
2.0
Input Current - Full Load
A
1.0
0.3
No Load Input Power
40
Inrush Current
0.75
Earth Leakage Current
230VAC
W
A
65
115VAC
115VAC cold start at 25°C ambient
230VAC cold start at 25°C ambient
mA
230VAC/50Hz (Typ)
Maximum
Units
Notes & Conditions
48
VDC
See Models & Ratings table
T3.15A / 250VAC Internal fuse fitted in line
Input Protection
Output
Characteristic
Output Voltage
Minimum
Typical
5
±2
Initial Set Accuracy
Voltage Adjustment
Minimum Load
%
±1
±10
%
300
ms
0
A
Start Up Delay
8
Hold Up Time
ms
55
Full load
LCS75US05
All other models
No minimum load required
115/230VAC full load
115VAC
230VAC
Drift
±0.03
%
After 20 minutes warm up, 230VAC, 0°C to 50°C
Line Regulation
±0.5
%
100-264VAC, full load
%
0-100%
load
%
Recovery within 1% in less than 3ms for a 50-75% and 75-50% load
step
±1
Load Regulation
±0.5
10
Transient Response
mV pk-pk
Ripple & Noise
10
Over/Undershoot
16.2
LCS75US12
33.6
50.0
Temperature Coefficient
Short Circuit Protection
110
200
±0.03
LCS75US15
LCS75US24
Auto recovery
LCS75US36
60.0
Overload Protection
Full load
LCS75US05
VDC
All other models
See Models and Ratings table
6.3
21.75
Overvoltage Protection
%
LCS75US05
LCS75US48
%
Nominal output current, auto recovery
%/°C
5
s
Trip and restart, auto recovery
2
LCS75 Series
AC-DC POWER SUPPLIES
General
Characteristic
Minimum
Typical
Maximum
88
Efficiency
Units
%
Isolation: Input to Output
4000
VAC
Input to Ground
2000
VAC
Output to Ground
1250
VAC
65
Switching Frequency
300
Class I construction
W/in3
khrs
0.485 (220)
Weight
230VAC Full load (see Models & Ratings table)
kHz
2.78
Power Density
Mean Time Between Failure
Notes & Conditions
MIL-HDBK-217F, Notice 2 +25°C GB
lb(g)
Case Material
Aluminium chassis with vented galvanized steel cover
Conformal Coating Option
Acrylic resin, UL94V-0 rated, certified (UL No. E351072), minimum 30μm coating thickness. Add suffix -E to part number
Environmental
Characteristic
Minimum
Typical
Maximum
Units
Notes & Conditions
See derating curve
Operating Temperature
-30
+70
°C
Storage Temperature
-40
+85
°C
90
%RH
5000
m
Natural convection
Cooling
5
Humidity
Operating Altitude
Shock and Vibration
Non-condensing
Tested according to EN60068-2-27, 10 - 500Hz, 5g (1H) for each X, Y and Z plane
EMC: Emissions
Phenomenon
Standard
Test Level
Conducted
EN55032
Class B
Radiated
EN55032
Class B
EN61000-3-2
Class A
Harmonic Current
Notes & Conditions
EMC: Immunity
Phenomenon
Standard
Test Level
Criteria
ESD Immunity
EN61000-4-2
3
A
Contact ±6kV / Air ±8kV
Radiated Immunity
EN61000-4-3
3
A
10V/m
EFT
EN61000-4-4
3
A
±2kV
Surge
EN61000-4-5
Installation class 4
A
Line to line ±2kV, line to ground ±4kV
Conducted
EN61000-4-6
3
A
10Vrms
Dip. 100% (0VAC), 10ms
Dip. 100% (0VAC), 20ms
Dip. 60% (88VAC), 200ms
Dip. 30% (154VAC), 500ms
Dip. 20% (176VAC), 5000ms
A
Int. 100% (0VAC), 5000ms
B
Dips
Interrupt
EN61000-4-11
Notes & Conditions
0%, 70%
3
LCS75 Series
AC-DC POWER SUPPLIES
Safety Approvals
Safety Agency
Standard
Notes & Conditions
UL
UL62368-1
Information Technology
TUV
EN62368-1, EN60335, EN61558
Information Technology and Household
CE
Meets all applicable directives
UKCA
Meets all applicable legislation
Application Notes
Temperature Derating
(See note 1.)
(5V)
(12V, 15V, 24V, 36V, 48V)
100
90
80
Output power (%)
(See note 2.)
70
60
50
40
30
20
-30 -25 -20
-10
0
10
20
30
40
50
60
70
Ambient temperature (°C)
Notes:
1. With 230VAC or 140VDC input no derating below -25°C
2. With input at 100VAC or 120VDC derate output power to 75%
4
LCS75 Series
LM75-20BXX-C
AC-DC POWER SUPPLIES
Mechanical Details
3.642 (92.5)
3.346 (85.0)
0.138 (3.5)
0.323 (8.2)
Typ.
0.138 (3.5)
1 2 3 4 5
0.374 (9.5)
Pitch (Typ.)
0.177 (4.5)
Power
‘ON’ LED
0.591 (15.0)
1.024 (26.0)
2 x M3 x 0.5 Thread
Max. Penetration = 5mm
0.394 (10.0)
2.913 (74.0)
1.181 (30.0)
0.138 (3.5)
0.138 (3.5)
0.571 (14.5)
(3.543) 90.0
0.256 (6.5)
0.256 (6.5)
V Out Adj.
3.819 (97.0)
2.165 (55.0)
0.807 (20.5)
2 x 1.791 (45.5)
Pin-Out
Pin
Function
1
AC(L)
2
AC(N)
3
2x M3 x 0.5 Thread
Max. Penetration = 3mm
4
-Vo
5
+Vo
Connector torque:
M3.5, 0.8Nm
3.898 (99.0)
Notes:
1. All dimensions are in inches (mm).
2. Tightening torque: M3, 0.4Nm fixings
3. General tolerances: ±0.039 (±1.00)
4. Chassis must be connected to protective earth.
04 August 2021
5
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