Embedded Power for
Business-Critical Continuity
LQS Series
Quarter-Brick Series
Total Power:
200 Watts
Input Voltage: 36 V to 75 V
# of Outputs: 1
Rev. 09.29.10
LQS Series
1 of 5
Special Features
Electrical Specifications
Input
24 V nominal
48 V nominal
No load
Input current:
Remote OFF
Logic compatibility
Active high remote ON/OFF: ON
OFF
Power up
Undervoltage lockout:
Power down
Input voltage ra nge:
Start-up time (See note 2):
Power up
Remote ON/OFF
18 - 36 Vdc
36 - 75 Vdc
85 mA to 150 mA
5 mA
Open collector ref to -input
Open circuit or > 2.4 Vdc
< 0.4 Vdc
35.5 V (typ.)
33.5 V (typ.)
10 ms (typ.)
10 ms (typ.)
80% to 110%
At turn-on and turn-off
0%
None
None
70 mV, typ. deviation
20 µs recovery
• Ultra high efficiency topology
• Unprecedented useable
output power levels
• High power density (200 W/in
3)
open-frame technology
• Wide ambient temperature
range, -40 ˚C to +85 ˚C
• 80% to 110% output trim
• Monotonic start-up in normal
and prebiased loads
• Basic insulation system
• Overvoltage and
overtemperature protection
• Secondary side control, no
optocouplers, fast transient
response
• 100 V, 100 ms input transient
rated
• Available RoHS compliant
Output
Voltage adjustability:
Minimum load:
Overshoot
Undershoot:
Transient response:
(See note 1)
Safety
UL, cUL 60950-1 Ed 2
CSA C22.2 No 60950-1 Ed 2
VDE EN60950-1:2006 + A11:2009
Embedded Power for
Business-Critical Continuity
Rev. 09.29.10
LQS Series
2 of 5
Electrical Specifications continued
EMC Characteristics
Immunity:
ESD air enclosure:
Radiated field enclosure:
Conducted:
Input transients:
EN61000-4-2 8 kV/6 kV (O/P within spec.)
EN61000-4-3 10 V/m (O/P within spec.)
EN61000-4-6 10 V (O/P within spec.)
100 V, 100 ms
Input/output
Fixed
(See Note 3)
2250 Vdc
480 kHz
EN60950-1 VDE, UL/cUL 60950-1
UL94V-0
Telcordia Tech SR-332
Operating ambient temperature
Non-operating
37g (1.30 oz)
3,866,933 hours
-40 ˚C to +85 ˚C
-55 ˚C to +125 ˚C
General Characteristics
Basic insulation:
Switching frequency:
Approvals and standards:
Material flammability:
Weight:
MTBF:
Thermal performance:
Environmental Specifications
Protection
Short-circuit
Overvoltage
Thermal
Continuous
Non-latching
125 ˚C hot spot temperature with automatic recovery
Embedded Power for
Business-Critical Continuity
Ordering Information
Output
Voltage
Input
Current
Max.
4
1.92 A
2.36 A
2.82 A
4.05 A
3.8 A
4.6 A
4.1 A
5.2 A
4.8 A
5.7 A
6.2 A
6.2 A
6.2 A
6.2 A
3.4 A
6.5 A
Rev. 09.29.10
LQS Series
3 of 5
Input Ripple
Current
5
Output
Current
Max.
50 A
50 A
50 A
100 A
80 A
80 A
50 A
50 A
100 A
100 A
80 A
60 A
40 A
40 A
30 A
30 A
Efficiency
typ.
Regulation
Load
± 0.2%
± 0.2%
± 0.2%
± 0.2%
± 0.2%
± 0.2%
± 0.2%
± 0.2%
± 0.2%
± 0.2%
± 0.2%
± 0.2%
± 0.2%
± 0.2%
± 0.2%
± 0.2%
Set point
Line
accuracy Max.
48 Vin VALUE MODELS
± 1.5%
± 1.5%
± 1.5%
± 1.5%
± 1.5%
± 1.5%
± 1.5%
± 1.5%
± 1.5%
± 1.5%
± 1.5%
± 1.5%
± 1.5%
± 1.5%
± 0.1%
± 0.1%
± 0.1%
± 0.1%
± 0.1%
± 0.1%
± 0.1%
± 0.1%
± 0.1%
± 0.1%
± 0.1%
± 0.1%
± 0.1%
± 0.1%
± 0.1%
± 0.1%
Ripple & noise
Model Number
6,8, 9,10
(pk-pk)
1.2 V
1.5 V
1.8 V
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
1.5 V
1.8 V
2.5 V
3.3 V
5 V
5 V
1.8 V
3.3 V
150 mA
150 mA
150 mA
250 mA
200 mA
200 mA
200 mA
200 mA
200 mA
200 mA
200 mA
200 mA
200 mA
200 mA
200 mA
300 mA
88.5%
89.5 %
90.4%
86.0%
88.8%
90.0%
90.0%
91.0%
88.5%
89.5%
91.0%
91.0%
92.0%
91.8%
91.0%
89.5%
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
LQS50A48-1V2J
LQS50A48-1V5J
LQS50A48-1V8J
LQS100A48-1V2J
LQS80A48-1V5J
LQS80A48-1V8J
LQS50A48-2V5J
LQS50A48-3V3J
LQS100A48-1V5J
LQS100A48-1V8J
LQS80A48-2V5J
LQS60A48-3V3J
LQS40A48-5V0J
(7)
LQS40A48-5V0GJ
(11)
LQS30A24-1V8J
LQS30A24-3V3J
48 Vin PERFORMANCE MODELS
48 Vin ULTRA MODELS
24 Vin MODELS
± 1.5%
± 1.5%
LQS60A48-3V3RANJ
L =
Low Profile
Q =
1/4 Brick
Type of Output
S = Single
Rated Output Current
40 A = 40 Amps, 60 A = 60 Amps etc.
Nominal Rated Input Voltage
24 = 24 Volts (18 Vdc to 36 Vdc range)
48 = 48 Volts (36 Vdc to 75 Vdc range)
Output Voltage
1V5 = 1.5 Volts, 1V8 = 1.8 Volts etc.
RoHS Compliance
(9)
J = Pb-free (RoHS 6/6 compliant)
Pin Length Options
Blank = 0.188” (4.78 mm)
N = 0.145” (3.68 mm)
K = 0.110” (2.79 mm)
Body Height, Package Type, and Pin Length
A = 0.300” (7.62 mm), Through hole,
0.188” (4.78mm) Pins
E = 0.340” (8.64 mm), Through hole,
0.188” (4.78mm) Pins
S = 0.28” (7.11 mm), Surface Mount
(6)
Remote ON/OFF Logic
(8)
Blank = Positive
R = Negative
6. ‘S’ option applies to the 24 V models only.
7. Except LQS40A48-5V0J which has the double output pins.
8. Active low Remote ON/OFF is available. Standard product is Active High. When
ordering active low parts, designate with the suffix ‘R’ e.g. LQS100A48-1V8RAJ
9. TSE RoHS 5/6 (non Pb-free) compliant versions may be available on special
request, please contact your local sales representative for details.
10. NOTICE: Some models do not support all oiptons. Please contact your local
sales representative or use the on-line model number search tool at www.
PowerConversion.com to find a suitable alternative.
11. LQS40A48-5V0GJ has single output pins /0.188” pin length/0.340” body
height
Notes:
1. di/dt = 1 A/us, Vin = 48 Vdc, Tc = 25 ˚C, load change = 50% to 75% Io max.
and 75% to 50% Io max. Deviation varies by model. For further details see
longform datasheet
2. Start-up into resistive load.
3. This product is only for inclusion by professional installers within other
equipment and must not be operated as a stand alone product.
4. Recommended input fusing is up to 10 A HRC 200 V rated fuse.
5. Peak to peak measured without external π filter. Significant reduction
possible with external filter. See Application Note 141 for further details.
Embedded Power for
Business-Critical Continuity
Mechanical Drawings
2.30 (58.4)
2.000 (50.80)
0.15
(3.8)
Rev. 09.29.10
LQS Series
4 of 5
2.30
(58.4)
0.057
±0.020
(1.45
±0.51)
1
2
0.300
(7.62)
0.725
±0.020
(18.42
±0.51)
3
2.186
(55.52)
0.055 (1.40) x 0.105 (2.67)
(8 pls)
ø
0.040
±0.002
(
ø
1.02
±0.05)
(6 pls)
0.300
(7.62)
1
0.300
(7.62)
2
3
8
7
6
5
4
TOP VIEW
1.45 (7.62)
(36.8)
0.300
1.45
(36.8)
TOP VIEW
0.150
(3.81)
8
7
6
5
4
0.150
(3.81)
0.725
±0.020
(18.42
±0.51)
0.150
(3.81)
0.150
(3.81)
ø
0.062
±0.002
(
ø
1.57
±0.05)
(2 pls)
HEIGHT
0.28 (7.1)
HEIGHT
(See Option Table)
0.188 (4.78)
CLEARANCE
(See Option Table)
CLEARANCE
0.015 (0.38)
ø0.058
±0.008
(ø1.47
±0.02)
(6 PLS)
Ref IPC-2222
Level B
ø0.080
±0.008
(ø2.03
±0.02)
(2 pls)
Ref IPC-2222
Level B
0.067(1.70) x 0.118(3.00)
(8 pls)
0.150
(3.81)
8
7
6
5
4
2.30 (58.4)
2.000 (50.80)
0.15
(3.8)
2.30
(58.4)
0.057
±0.020
(1.45
±0.51)
1
2
3
2.186
(55.52)
1.45
(36.8)
0.300
(7.62)
1
0.300
(7.62)
2
3
8
7
6
5
4
TOP VIEW
1.45
(36.8)
0.150
(3.81)
0.150
(3.81)
0.300
(7.62)
0.300
(7.62)
0.150
(3.81)
Lead coplanarity within 0.006 (0.15) max.
0.725
±0.020
(18.42
±0.51)
ø
0.054
±0.003
(
ø
1.37
±0.08)
(6 pls)
ø
0.074
±0.003
(
ø
1.88
±0.08)
(2 pls)
RECOMMENDED HOLE PATTERN
Dimensions in Inches (mm)
Tolerances (unless otherwise speci ed)
x.xx
±0.02
(x.x
±0.5)
x.xxx
±0.010
(x.xx
±0.25)
0.725
±0.020
(18.42
±0.51)
0.15
(3.8)
2.000
(50.80)
RECOMMENDED PCB LAYOUT
Dimensions in Inches (mm)
Tolerances (unless otherwise speci ed)
x.xx
±0.02
(x.x
±0.5)
x.xxx
±0.010
(x.xx
±0.25)
24 V/ 48 V Mechanical Drawing for Output Current of 50 A or less
(See Note 7)
24 V Surface-mount Mechanical Drawing and Pinout Table
Pin Connections
Pin Number
1
2
3
4
Function
+Vin
ON/OFF
-Vin
-Vout
Pin Number
5
6
7
8
Function
-Sense
Trim
+Sense
+Vout
A
E
Option
Dimension Options
Clearance
± 0.016 (0.41)
0.030 (0.76)
0.070 (1.78)
Height
+0.022 (0.56)
-0.030 (0.76)
0.300 (7.62)
0.340 (8.64)
Embedded Power for
Business-Critical Continuity
Americas
5810 Van Allen Way
Carlsbad, CA 92008
USA
Telephone: +1 760 930 4600
Facsimile: +1 760 930 0698
0.118
(3.00)
Rev. 09.29.10
LQS Series
5 of 5
2.30 (58.4)
2.000 (50.80)
0.15
(3.8)
ø
0.040
±0.002
(
ø
1.02
±0.05)
(6 pls)
Europe (UK)
1.45
(36.8)
0.300
(7.62)
TOP VIEW
0.300
(7.62)
0.150
(3.81)
0.150
(3.81)
0.725
±0.020
(18.42
±0.51)
Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX
United Kingdom
Telephone: +44 (0) 1384 842 211
Facsimile: +44 (0) 1384 843 355
ø
0.062
±0.002
(
ø
1.57
±0.05)
(4 pls)
Asia (HK)
0.188 (4.78)
HEIGHT
(See Option Table)
CLEARANCE
(See Option Table)
2.30 (58.4)
0.15
(3.8)
2.000 (50.80)
0.118
(3.00)
14/F, Lu Plaza
2 Wing Yip Street
Kwun Tong, Kowloon
Hong Kong
Telephone: +852 2176 3333
Facsimile: +852 2176 3888
1.45
(36.8)
0.300
(7.62)
For global contact, visit:
0.300
(7.62)
0.150
(3.81)
0.150
(3.81)
www.PowerConversion.com
ø
0.074
±0.003
(
ø
1.88
±0.08)
(4 pls)
Ref IPC-2222 Level B
0.725
±0.020
(18.42
±0.51)
techsupport.embeddedpower
@emerson.com
Dimensions in Inches (mm)
Tolerances (unless otherwise speci ed)
x.xx
±0.02
(x.x
±0.5)
x.xxx
±0.010
(x.xx
±0.25)
ø
0.058
±0.008
(
ø
1.47
±0.02)
(6 pls)
Ref IPC-2222 Level B
RECOMMENDED HOLE PATTERN
48 V Mechanical Drawing for Output Current Freater than 50 A
“The Double P” Pinout
(7)
While every precaution has been taken to ensure
accuracy and completeness in this literature, Emerson
Network Power assumes no responsibility, and disclaims
all liability for damages resulting from use of this
information or for any errors or omissions.
Emerson Network Power.
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