output voltages. It features input voltage range of
38V to 55V, and provides up to 384W @ 48Vin of
power or 300W at 38Vin @ 55ºC, typical efficiency
of 9.6V module is 96.6%. It can be parallel for
more power.
Output voltage set point
Output load regulation
Output voltage total regulation
Output ripple & noise
2
Output current operating range
Efficiency
Turn-on delay
Output voltage rise time
3
Start-up inhibit time
Transient response
3
Current sharing accuracy
(up to 3 in parallel)
Output turn on overshoot
Output turn off undershoot
Maximum output capacitance
7.0
80
0
96.6
0.5
12
140
220
5
0
0
11.0
150
42
10
15
350
10
350
350
3750
1 V
IN
= 48Vdc, Ta = 25ºC, Airflow = 200LFM for all data unless otherwise noted.
2 Output Ripple Voltage and noise is specified when measured with a 10μF tantalum and a 1uF ceramic capacitor at the output pins.
3 During output voltage rise time (15ms Max.), output power shall be limited to 50% constant power.
Transient response is specified with a 960μF capacitor at the output of the converter.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
QUS40-096.B01
Page 1 of 3
QUS40-096
Isolated Bus Converter
PROTECTION CHARACTERISTICS
Parameter
Output over-current shutdown
2
Over temperature shutdown
3
Over temperature restart hysteresis
Conditions
1
Auto-restart
Restart rate
Auto-restart
Min.
44
Typ.
48
80
135
10
Max.
50
140
Units
A
ms
ºC
ºC
GENERAL CHARACTERISTICS
Parameter
Isolation voltage
Isolation resistance
Storage temperature range
Operating temperature range
Operating humidity
Thermal measurement location temperature
3
Material flammability
MTBF
Conditions
Input to output
Input to output
Non-condensing
Non-condensing
See mechanical drawing for location
UL 94V-0
Calculated per Mil Spec 217 E, or Bellcore at Ta=30ºC
Demonstrated
Min.
2250
10
-40
-40
10
Typ.
Max.
Units
V
DC
MΩ
ºC
ºC
%
ºC
x10
6
Hrs
x10
6
Hrs
125
85
90
130
3.3
2
1.3
STANDARDS COMPLIANCE
Standards
UL/CSA 60950
Conditions
4
Basic insulation
MANUFACTURING TESTING
Burn-in test
Parametric test
SAFETY CONSIDERATIONS
The QUS series of converters are certified to the standards and extent listed in the ‘Standards Compliance’ section in the table above. If this product is built into
information technology equipment, the installation must comply with the above standard. Even though the product is safety certified to operate without an input
fuse, it is recommended that an input fuse of 15A (max.) is used.
The output of the converter (Vo+/Vo-) is considered to remain within SELV limits when the input to the converter meets SELV or TNV-2 requirements. The
converters and materials meet UL 94V-0 flammability ratings.
RoHS COMPLIANCE
The QUS40-096 converter is in compliance with the European Union Directive 2002/95/EC (RoHS) with respect to the
following substances: lead (Pb), cadmium (Cd), mercury (Hg), hexavalent chromium, polybrominated biphenyls (PBB) and
polybrominated diphenyl ethers (PBDE).
For further information, please visit www.cd4power.com/rohs
1
2
3
4
V
IN
= 48Vdc, Ta = 25ºC, Airflow = 200LFM for all data unless otherwise noted.
Input transient: if input voltage increases by 5V in 1μs, output over-current shut-down shall not be triggered (tested with Max. load and Max. output capacitance).
Thermal shutdown is monitored at the Thermal Measurement Location (TML). See ‘Mechanical Information’ on page 3 for TML location.
See ‘Safety Considerations’ shown above.
Derating curves are conducted in a controlled environment. End application testing is required to ensure the Thermal Measurement Location temperature is below the maximum specified.
Recommended airflow direction is from pin 1 to pin 3, or 3 to 1 (transversal to the unit).
www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
QUS40-096.B01
Page 2 of 3
QUS40-096
Isolated Bus Converter
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS
0.480 (12.19)
Max.
Ø0.040 ± 0.002 (1.02 ± 0.06)
(3X)
Ø0.062 ± 0.002 (1.57 ± 0.06)
(2X)
y
TML
PIN #3
0.300 (7.62)
PIN #2
0.600
(15.24)
PIN #1
0.43 (10.8)
PIN #4
0.600
(15.24)
PIN #5
1.45
(36.8)
Recommended
Footprint
0.14 (3.6)
2.000 (50.80)
2.28 (57.9)
Bottom view
Ø0.060 (1.52)
Ø0.105 (2.67)
Ø0.093 (2.36)
Ø0.137 (3.48)
Dimensions: 2.3 (58.4) L x 1.45 (36.83) W x 0.48 (12.19) H Max.
