cdc qus40-096

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QUS40-096
Isolated Bus Converter
INPUT CHARACTERISTICS
Parameter
Conditions
1
Min.
Typ.
Max.
Units
Input voltage operating range
38
48
55
Input voltage absolute
maximum
60
Turn-on threshold
34
35.5
36
Input undervoltage lockout
Turn-off threshold
32
33.5
34
V
DC
Hysteresis voltage
2
Turn-on threshold
55
58
Input overvoltage lockout
Turn-off threshold
57
58.5
59.5
Hysteresis voltage
2
Maximum input current
Steady-state (40 A
OUT
)
8.4
9
A
DC
FEATURES
n
RoHS compliant
n
48 V
IN
, Isolated, 5:1 ixed conversion ratio
n
385W power at 48V
IN
n
300W output at 38 V
IN
, 55ºC, 200 LFM
n
Industry standard ¼ brick footprint
n
Remote enable (primary side, positive or
negative)
n
Over-temperature, over current protections
n
Direct parallel operation for higher power
No-load input current
Enabled state, no load (48V
IN
)
100
mA
Disabled input current
Disabled state (48V
IN
)
7
mA
Measured into the input pin
Input capacitor 47µF type
Nichicon UPM1J470MPH or equivalant
Input relected ripple current
300
mA rms
On state range
-0.1
0.8
V
DC
Enable - negative logic version
Internal 27.4KΩ
pulled-up to internal 5.0V
Off state range
2.4
15.0
V
DC
Resistance from enable pin
to -V
IN
With +V
IN
pin open, or tired to -V
IN
16.12
KΩ
OUTPUT CHARACTERISTICS
Parameter
Conditions
1
Min.
Typ.
Max.
Units
DESCRIPTION
The QUS40-096 is a RoHS compliant ixed 5:1
ratio bus converter in an industry standard
quarter brick footprint to support Intermediate
Bus Architecture (IBA) for powering multiple
downstream non-isolated point-of-load (POL)
converters. The output is unregulated and the 5:1
ixed ratio is maintained between the input and
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 eficiency
of 9.6V module is 96.6%. It can be parallel for
more power.
Output voltage set point
V
IN
= 48V, I
O
= 0A
9.40
9.50
9.60
V
DC
Output load regulation
I
O
= 0 to 40A
0.35
V
V
IN
= 38 to 55V, P
O
= 0 to 300W,
Ta = 55ºC
Output voltage total regulation
7.0
11.0
V
DC
Output ripple & noise
2
20MHz bandwidth
80
150
mV p-p
Output current operating range
Corresponding to P
O
= 300W
0
42
A
Eficiency
V
IN
= 48V, P
O
= 300W
96.6
%
From enable, <0.8V to V
O
> 10%
for V
IN
= 38V - 55V
Turn-on delay
0.5
10
ms
Output voltage rise time
3
From 10% to 90%
12
15
ms
Start-up inhibit time
Enabled: V
IN
applied to 90% V
OUT
140
ms
Transient response
3
25% step, 1A/µs, C
o
=1200µF
220
350
%V
O
Current sharing accuracy
(up to 3 in parallel)
At P
O
= 300W
5
10
%
Output turn on overshoot
0
350
mV
Output turn off undershoot
0
350
mV
Maximum output capacitance
3750
µF
1 V
IN
= 48Vdc, Ta = 25ºC, Airlow = 200LFM for all data unless otherwise noted.
2 Output Ripple Voltage and noise is speciied 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 speciied with a 960µF capacitor at the output of the converter.
Ḥ
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
Conditions
1
Min.
Typ.
Max.
Units
Auto-restart
44
48
50
A
Output over-current shutdown
2
Restart rate
80
ms
Over temperature shutdown
3
Auto-restart
135
140
ºC
Over temperature restart hysteresis
10
ºC
GENERAL CHARACTERISTICS
Parameter
Conditions
Min.
Typ.
Max.
Units
Isolation voltage
Input to output
2250
V
DC
Isolation resistance
Input to output
10
MΩ
Storage temperature range
Non-condensing
-40
125
ºC
Operating temperature range
-40
85
ºC
Operating humidity
Non-condensing
10
90
%
Thermal measurement location temperature
3
See mechanical drawing for location
130
ºC
Material lammability
UL 94V-0
Calculated per Mil Spec 217 E, or Bellcore at Ta=30ºC
2
3.3
x10
6
Hrs
MTBF
Demonstrated
1.3
x10
6
Hrs
STANDARDS COMPLIANCE
Standards
Conditions
4
UL/CSA 60950
Basic insulation
MANUFACTURING TESTING
n
Burn-in test
n
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 V
IN
= 48Vdc, Ta = 25ºC, Airlow = 200LFM for all data unless otherwise noted.
2 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).
3 Thermal shutdown is monitored at the Thermal Measurement Location (TML). See ‘Mechanical Information’ on page 3 for TML location.
4 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 speciied.
Recommended airlow 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)
Ø0.062 ± 0.002 (1.57 ± 0.06)
y
(3X)
(2X)
TML
PIN #3
PIN #4
0.300 (7.62)
0.600
(15.24)
0.600
(15.24)
1.45
(36.8)
PIN #2
Recommended
Footprint
PIN #1
PIN #5
0.43 (10.8)
0.14 (3.6)
2.000 (50.80)
Ø0.060 (1.52)
Ø0.093 (2.36)
Ø0.137 (3.48)
2.28 (57.9)
Bottom view
Ø0.105 (2.67)
Dimensions: 2.3 (58.4) L x 1.45 (36.83) W x 0.48 (12.19) H Max.
All dimensions in inches (mm).
Tolerance: X.X (X.XX) ±0.5 (0.2), X.XX (X.XXX) ±0.25 (0.010).
Max. 0.480 (12.19) between highest component and mounting plane.
PI
N CONNECTIONS
ORDERING INFORMATION
Q U S
x x
-
y y y
- N H z R v C
Pin
Assignment
1
+V
IN
2*
ON/OFF
3
-V
IN
C = R o H S C o m p liant
Factory Internal Control Revision
(Not required when ordering)
O u tp u t C u rre n t
O u tp u t v o ltage
H o rizonta l M ount
4
-V
OUT
40 = 40A
096 = 9.6V
5
+V
OUT
E
n
a
b
l
e
l
o
g
i
c
P
i
n
L
e
n
g
t
h
N = N ega tiv e logic
P = P o s itive lo g ic
B = 0 .145''
C = 0 .200''
Reserved
* Referenced to -V
IN
USA: Mansield (MA), Tel: (508) 339-3000, email: sales@murata-ps.com
Canada: Toronto, Tel: (866) 740-1232, email: toronto@murata-ps.com
UK: Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com
France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com
Germany: München, Tel: +49 (0)89-544334-0, email: munich@murata-ps.com
Japan:
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansield, MA 02048-1151 U.S.A.
Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
www.murata-ps.com email: sales@murata-ps.com
ISO 9001 REGISTERED
Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com
Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com
Website: www.murata-ps.jp
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Speciications are subject to change without
notice.
China:
Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com
Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com
© 2008 Murata Power Solutions, Inc.
04/22/2008
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel:
+1 508 339 3000
QUS40-096.B01 Page 3 of 3
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