cdc eus34-096

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EUS34-096
Isolated Bus Converter
INPUT CHARACTERISTICS
Parameter
Conditions
1
Min.
Typ.
Max.
Units
Input voltage operating range
38
48
55
V
DC
Input voltage absolute
maximum
60
V
DC
Turn-on threshold
34
35.5
36
V
DC
Input undervoltage lockout
Turn-off threshold
32
33.5
34
V
DC
Hysteresis voltage
2
V
DC
Input overvoltage lockout
(latching type)
Turn-off threshold
57
58.5
59.5
V
DC
Maximum input current
Steady-state (34 A out)
6.7
A
DC
No-load input current
Enabled state, no load (48 V
IN
)
100
mA
FEATURES
n
RoHS compliant
n
48 V
IN
, Isolated, 5:1 ixed conversion ratio
n
240W output at 38 V
IN
, 55ºC, 200 LFM
n
300W output at 48 V
IN
, 55ºC, 200 LFM
n
Industry standard 1/8 brick footprint
n
Remote enable (primary side, positive or
negative)
n
Over-temperature, over current protections
n
Direct parallel operation for higher power
Disabled input current
Disabled state (48 V
IN
)
7
mA
Measured into the input pin
Input capacitor 47µF type
Nichicon UPM1J470MPH or equivalant
Input relected ripple current
240
mA rms
Inrush current
51
A
On state range
-0.1
0.8
V
DC
Enable - negative logic version
Internal 27.4 KΩ
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
TBD
KΩ
OUTPUT CHARACTERISTICS
Parameter
Conditions
1
Min.
Typ.
Max.
Units
DESCRIPTION
The EUS34-096 is a RoHS compliant ixed 5:1
ratio bus converter in an industry standard
eighth 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 300W @ 48Vin of
power. Typical eficiency of 9.6V module is 96%.
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 34A
0.4
V
V
IN
= 38 to 55V, I
O
= 0 to 34A,
Ta = 55ºC
Output voltage total regulation
7.0
11.0
Vdc
Output ripple & noise
2
20MHz bandwidth
50
150
mV p-p
Output current operating range
Corresponding to P
O
= 240W
0
34
A
Eficiency
V
IN
= 48V, P
O
= 240W
96
%
From enable, <0.8V to V
O
> 10%
for V
IN
= 38V - 55V
Turn-on delay
0.1
10
ms
Output voltage rise time
3
From 10% to 90%
10
15
ms
Start-up inhibit time
Enabled: V
IN
applied to 90% V
OUT
150
ms
Transient response
3
25% step, 1A/µs, ∆V
O
±3
%V
O
Current sharing accuracy
At P
O
= 240W
3
10
%
Output turn on overshoot
0
3
%
Output turn off undershoot
0
3
%
Maximum output capacitance
3000
µF
1 V
IN
= 48Vdc, Ta = 25ºC, Airlow = 200 LFM for all data unless otherwise noted.
2 Output Ripple Voltage and noise is speciied when measured with a 10uF tantalum and a 1µF ceramic capacitor at the output pins.
3 During output voltage rise time (15 mS 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
EUS35-96.B01 Page 1 of 3
 EUS34-096
Isolated Bus Converter
PROTECTION CHARACTERISTICS
Parameter
Conditions
1
Min.
Typ.
Max.
Units
Auto-restart
38
40
42
A
Output over-current shutdown
2
Re-start rate
TBD
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
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
This 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 12A (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 EUS34-096 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 = 200 LFM 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 on page 4.
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
EUS35-96.B01 Page 2 of 3
EUS34-096
Isolated Bus Converter
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS
0.480
(12.19)
Max.
y
Ø0.040 ± 0.002 (1.02 ± 0.06)
Ø0.062 ± 0.002 (1.57 ± 0.06)
(3X)
(2X)
TML
2.28 (57.9)
0.14 (3.6)
0.300
(7.62)
0.300 (7.62)
PIN #3
PIN #4
0.45
(11.4)
Recommended
Footprint
0.90
(22.9)
PIN #2
Ø0.093 (2.36)
Ø0.060 (1.52)
PIN #1
PIN #5
Ø0.137 (3.48)
Ø0.105 (2.67)
0.300 (7.62)
2.000 (50.80)
0.300 (7.62)
Bottom view
Dimensions: 2.3 (58.4) L x 1.45 (36.83) W x 0.48 (12.19) H
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
E 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
34 = 34A
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
* Referenced to Vi (-).
Positive logic: Floating = Enabled
Negative logic: Floating = Disabled
A = 0 .110''
B = 0 .145''
C = 0 .200''
Reserved
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.
04/18/08
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel:
+1 508 339 3000
EUS35-96.B01 Page 3 of 3
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