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EUS34-096
Isolated Bus Converter
INPUT CHARACTERISTICS
Parameter
Input voltage operating range Input voltage absolute maximum Input undervoltage lockout Input overvoltage lockout (latching type) Turn-on threshold Turn-off threshold Hysteresis voltage Turn-off threshold Steady-state (34 A out) Enabled state, no load (48 VIN) Disabled state (48 VIN) Measured into the input pin Input capacitor 47F type Nichicon UPM1J470MPH or equivalant 34 32 35.5 33.5 2 58.5 6.7 100 7 240 51 On state range Off state range With +VIN pin open, or tired to -VIN -0.1 2.4 TBD 0.8 15.0
Conditions1
Min.
38
Typ.
48
Max.
55 60 36 34
Units
VDC VDC VDC VDC VDC VDC ADC mA mA mA rms A VDC VDC K
57
59.5
FEATURES
RoHS compliant 48 VIN, Isolated, 5:1 fixed conversion ratio 240W output at 38 VIN, 55C, 200 LFM 300W output at 48 VIN, 55C, 200 LFM Industry standard 1/8 brick footprint Remote enable (primary side, positive or negative) Over-temperature, over current protections Direct parallel operation for higher power
Maximum input current No-load input current Disabled input current Input reflected ripple current Inrush current Enable - negative logic version Internal 27.4 K pulled-up to internal 5.0V Resistance from enable pin to -VIN
OUTPUT CHARACTERISTICS
Parameter Conditions1
VIN = 48V, IO = 0A IO = 0 to 34A VIN = 38 to 55V, IO = 0 to 34A, Ta = 55C 20MHz bandwidth Corresponding to PO = 240W VIN = 48V, PO = 240W From enable, <0.8V to VO> 10% for VIN = 38V - 55V
3
Min.
9.40
Typ.
9.50 0.4
Max.
9.60
Units
VDC V Vdc mV p-p A % ms ms ms %VO % % % F
DESCRIPTION
The EUS34-096 is a RoHS compliant fixed 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 fixed 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 efficiency of 9.6V module is 96%. It can be parallel for more power.
Output voltage set point Output load regulation Output voltage total regulation Output ripple & noise Output current operating range Efficiency Turn-on delay Output voltage rise time Start-up inhibit time Transient response3 Current sharing accuracy Output turn on overshoot Output turn off undershoot Maximum output capacitance
2
7.0 50 0 96 0.1 10 150 3 3 0 0
11.0 150 34
10 15
From 10% to 90% Enabled: VIN applied to 90% VOUT 25% step, 1A/s, VO At PO = 240W
10 3 3 3000
1 VIN = 48Vdc, Ta = 25C, Airflow = 200 LFM for all data unless otherwise noted. 2 Output Ripple Voltage and noise is specified when measured with a 10uF tantalum and a 1F 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 specified with a 960F 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
EUS35-96.B01 Page 1 of 3
EUS34-096
Isolated Bus Converter
PROTECTION CHARACTERISTICS
Parameter
Output over-current shutdown
2
Conditions1
Auto-restart Re-start rate Auto-restart
Min.
38
Typ.
40 TBD 135 10
Max.
42 140
Units
A ms C C
Over temperature shutdown3 Over temperature restart hysteresis
GENERAL CHARACTERISTICS
Parameter
Isolation voltage Isolation resistance Storage temperature range Operating temperature range Operating humidity Thermal measurement location temperature3 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=30C Demonstrated
Min.
2250 10 -40 -40 10
Typ.
Max.
Units
VDC M C C % C x106 Hrs x106 Hrs
125 85 90 130
2 1.3
STANDARDS COMPLIANCE
Standards UL/CSA 60950 Conditions4 Basic insulation
MANUFACTURING TESTING
Burn-in test 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 2 3 4 VIN = 48Vdc, Ta = 25C, Airflow = 200 LFM for all data unless otherwise noted. Input transient: if input voltage increases by 5V in 1s, 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 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 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
EUS35-96.B01 Page 2 of 3
EUS34-096
Isolated Bus Converter
PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS
0.480 (12.19) Max.
O0.040 0.002 (1.02 0.06) (3X)
O0.062 0.002 (1.57 0.06) (2X) 2.28 (57.9)
y
TML 0.300 (7.62) PIN #4 0.90 (22.9) PIN #5 Recommended Footprint O0.060 (1.52) O0.105 (2.67) O0.093 (2.36) O0.137 (3.48)
0.300 (7.62) PIN #3 0.45 (11.4) PIN #2
0.14 (3.6)
PIN #1 0.300 (7.62) 2.000 (50.80) Bottom view
0.300 (7.62)
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.
PIN CONNECTIONS Pin
1 2* 3 4 5
* Referenced to Vi (-). Positive logic: Floating = Enabled Negative logic: Floating = Disabled
ORDERING INFORMATION Assignment
+VIN ON/OFF -VIN -VOUT +VOUT
EUS x x - y y y - N H z R v C
O u tp ut C urren t O u tp ut vo lta g e 34 = 34A 096 = 9.6V
H o rizo n ta l M o u n t E n a b le lo g ic N = N e g ative lo g ic P = P os itive log ic P in L e n g th A = 0 .1 1 0 '' Reserved B = 0 .1 4 5 '' C = 0.2 0 0 ''
C = R oH S C o m p lia n t Factory Internal Control Revision (Not required when ordering)
USA: UK: France: Japan:
Mansfield (MA), Tel: (508) 339-3000, email: sales@murata-ps.com Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com 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 Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com
Canada: Toronto, Tel: (866) 740-1232, email: toronto@murata-ps.com
Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, 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
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. Specifications are subject to change without notice. (c) 2008 Murata Power Solutions, Inc.
Germany: Munchen, Tel: +49 (0)89-544334-0, email: munich@murata-ps.com
China:
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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