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D1U-H-2800-52-HBxC Series
www.murata-ps.com
AC/DC Front End Power Supply
PRODUCT OVERVIEW
The D1U-H-2800 is a 2800 Watt, power-factor-corrected (PFC) front-end power supply for hot-swapping
redundant systems. The main output is -52V and standby output of 12V. Packaged in 1U low profile, it is
designed to deliver reliable bulk power to telecom systems or any -52V distributed power architecture
systems requiring high power density. The highly efficient electrical and thermal design with internal
cooling fans supports reliable operation conditions. The D1U-H-2800 is designed to auto-recover from
over-current and over-temperature faults. Status information is provided with front panel LEDs, logic
signals and I2C management interface. Three units can be packaged into an optional 19" 1U power shelf
to provide up to 8.4kW of power.
FEATURES
SELECTION GUIDE

RoHS compliant
Part Number

2800W (220Vac) Output Power

-52V Main output, 12V standby output
Power Output
High Line AC
Main Output
Standby
Output
Airflow
Current Share
2800W
2800W
-52V
-52V
12V
12V
Front to back
Front to back
Active
Droop
D1U-H-2800-52-HB1C
D1U-H-2800-52-HB1DC

1U sized; dimensions 5.5"x11.4"x1.61"
INPUT CHARACTERISTICS

27.7 Watts per cubic inch density
Parameter

N+1 redundancy capable,
including hot-docking

Active current sharing or droop current
sharing

Over-voltage, over-current,
over-temperature protection
Conditions
Input Voltage Operating Range
Input Frequency
Turn-on Input Voltage
Turn-off Input Voltage
Maximum Rated Input Current
Inrush Current
Inrush Current
Power Factor
Ramp up
Ramp down
200VAC
Cold start
Cold start between 0-1msec
Output load >90%
Output load >50%

Internal cooling fans
OUTPUT VOLTAGE CHARACTERISTICS

I²C Bus interface with status indicators
Output
Voltage

Optional 1U x 19" power-shelf
-52V
12Vsb
Parameter
Voltage Set Point Accuracy
Line and Load Regulation
Ripple Voltage & Noise
Output Current
Load Capacitance
Voltage Set Point Accuracy
Line and Load Regulation
Ripple Voltage & Noise
Operating Range
Load Capacitance
Conditions
Min.
Typ.
Max.
Units
170
47
160
155
230
55
264
63
170
165
16
50
100
Vac
Hz
Vac
Arms
Apk
Apk
95%
75%
Min.
Typ.
Max.
-52
51.48
52.52
520
54
6800
20MHz Bandwidth
1
12
11.2
0
12.4
120
0.5
1000
Units
Vdc
mV p-p
A
μF
Vdc
mV p-p
A
μF
1
Ripple and noise are measured with 0.1 uF of ceramic capacitance and 10 uF of tantalum capacitance on each of
the power supply outputs. The output noise requirements apply over a 0 Hz to 20 MHz bandwidth. A short coaxial
cable with 50ohm scope termination is used.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
D1U-H-2800-52-HBxC.A08 Page 1 of 5
D1U-H-2800-52-HBxC Series
AC/DC Front End Power Supply
OUTPUT CHARACTERISTICS
Parameter
Conditions
Remote Sense
Efficiency
Output Rise Monotonicity
Per rail
250
mV
220Vac
91.6
%
Overshoot less than 10% for all outputs, no voltage negative between 10% to 95% during ramp up
AC ramp up
1.5
s
PS_On activated
150
ms
-52V Ramp 1A/ms
±2080
mV
12Vsb Ramp 1A/ms
±600
Start-up Time
Transient Response
Current sharing accuracy (up to 3 in parallel)
At 100% load
Hot Swap Transients
Hold-up Time
All outputs within regulation
Min.
Typ.
Max.
±10
15
19
Typ.
Units
%
ms
GENERAL CHARACTERISTICS
Parameter
Conditions
Min.
Storage Temperature Range
Operating Temperature Range
Operating Humidity
Storage Humidity
Shock
Sinusoidal Vibration
Non-condensing
-40
0
10
5
MTBF
Acoustic
Safety Approvals
Input Fuse
Material Flammability
Non-condensing
Max.
70
50
90
90
30G non operating
0.5G, 5 – 500 Hz
Calculated per Bellcore at Ta=30°C
200
Demonstrated
200
ISO 7779-1999
C-CSA-US (CSA 60950-1-03/UL60950-1, first edition), CE Mark
Units
°C
%
60
Khrs
Khrs
dB LpAm
Max.
Units
65
60
62
14
0.9
°C
V
A
V
A
Max.
Units
Power Supply has internal 20A/250V fast blow fuse on the AC line input
UL 94V-0
Switching Frequency
95KHz for Boost PFC Converter
145KHz for Main Output Converter
200KHz for Standby Output Converter
Weight
2.3kg
PROTECTION CHARACTERISTICS
Output
Voltage
-52V
12Vsb
Parameter
Conditions
Min.
Over-temperature
Over Voltage
Over Current
Over Voltage
Over Current
Auto-restart
Latching
Auto-restart
Latching
Latching
55
55
56
13
0.7
Conditions
Min.
Typ.
ISOLATION CHARACTERISTICS
Parameter
Insulation Safety Rating / Test Voltage
Isolation
Material Flammability
Grounding
Typ.
Input to Output - Reinforced
3000
Input to Chassis - Basic
1500
Output to Chassis
Output to Output
UL 94V-0
Main Output Return and Standby Output Return are connected internally to chassis.
Vrms
Vrms
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D1U-H-2800-52-HBxC.A08 Page 2 of 5
D1U-H-2800-52-HBxC Series
AC/DC Front End Power Supply
CONTROL SIGNALS
Status
Conditions
Description
LED
Off
Flashing Yellow
Flashing Green
Green
No AC input to all PS
Power Supply Failure
Main Output Absent
Power Supply Good
Conditions
Description
Both fans running normally
PS_Fault0 bits 3 and 4 set to “0”
One fan failed (or rotor locked)
PS_Fault0 bit 4 set to “1”
Both fans failed (or rotors locked)
PS_Fault0 bits 3 and 4 set to “1”
FANS MONITORING
Status
Fans monitoring is available through the I2C interface
EMISSIONS AND IMMUNITY
Characteristic
Description
Harmonics
Voltage Fluctuation and Flicker
Emission Conducted
Emission Radiated
IEC/EN 61000-3-2
IEC/EN 61000-3-3
FCC 47 CFR Parts 15/CISPR 22/EN55022
FCC 47 CFR Parts 15/CISPR 22/EN55022
ESD
IEC/EN 61000-4-2
Electromagnetic Field
Electrical Fast Transients/Burst
Surge
RF Conducted Immunity
Magnetic Immunity
Voltage dips, interruptions
IEC/EN 61000-4-3
IEC/EN 61000-4-4
IEC/EN 61000-4-5
IEC/EN 61000-4-6
IEC/EN 61000-4-8
IEC/EN 61000-4-11
Criteria
Class A, 6dB margin
Class A, 6dB margin
4kV contact discharge
8kV operational air discharge
15kV non-operational air discharge
1kV/2kV, Performance Criteria B
3 Vac, 80% AM, 1kHz, Performance Criteria A
3 A/m
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D1U-H-2800-52-HBxC.A08 Page 3 of 5
D1U-H-2800-52-HBxC Series
AC/DC Front End Power Supply
OUTPUT CONNECTOR AND SIGNAL SPECIFICATION
DC and Signal Connector: Tyco Part # 2-6450330-8, or FCI PowerBlade # 51939-180LF
P1
P2
P3
1
2
3
4
5
6
-52SNS
PRESENT
(GND)
N/C
GND
I2C-SDA
GND
GND
PS-ID2
I2C-SCL
GND
Ishare
D
+52SNS
C
AC1
AC2
GND
GND
PS-ID0
GND
PS-ID1
GND
DC_OK_L
PUSH
GND
+12VAUX
GND
I2C-EN-H
PS_EN_L
B
A
Pin Assignment
Signal Name
P4
P5
P6
P7
-52V
-52V
-52V
Return
(GND)
-52V
Return
(GND)
High Level
Low Level
Description
P1,P2
P3
P4, P5
P6, P7
C1
D1
A3
A4, B3
C6
A1
B6
A2
AC1, AC2
GND
-52V
-52V Return
+52VSNS
-52VSNS
+12V-AUX
GND
Ishare*
PUSH
DC_OK_L
PRESENT
AC Input Voltage
Input Protective Earth (GND)
Main Output Voltage
Main Output Voltage Return (connected to GND)
Main Output Positive Remote Sense Line
Main Output Negative Remote Sense Line
Auxiliary Output
Auxiliary Output Return
Active Load sharing bus
Hot Swap Indicator
Ouptut Voltage within specification (10K pull-up to +5Vdc)
This pin is connected to GND when unit is installed
A6
PS_EN_L
Enable Main Output (10K pull-up to +5Vdc)
D5
C4
I2C-SDA
I2C-SCL
I2C serial data bus
I2C serial clock bus
A5
I2C-EN-H
Enable I2C communication bus
I Max
0-8V
-4mA/ +5mA
>2.4V, not OK
0V
>2.4V, disabled
-2mA / +4mA
-2mA / +4mA
<0.8V, enabled
+5Vdc
+5Vdc
>2.4V, disabled
-2mA / +4mA
<0.8V, enabled
>2.1V, <0.8V
>2.1V, <0.8V
>2.1V, <0.8V
B2
PS-ID0
Address Input 0, internal Pull-up to Vdd (+5Vdc)
B4
PS-ID1
Address Input 1, internal Pull-up to Vdd (+5Vdc)
C3
PS-ID2
Address Input 2, internal Pull-up to Vdd (+5Vdc)
D3
N/C
not used
B1, A2, A4, D4, B5, C5, D6
GND
Connected to GND
* The signal should be left floating if using the Droop Current Sharing model.
D1U MATING CONNECTORS
Murata Power Solutions
FCI
Tyco
1
Solder 1
Press Fit
-52V D1U mating connector
Straight
TBD
TBD
TBD
Right Angle
TBD
TBD
TBD
Straight
TBD
TBD
TBD
Right Angle
36-0520031-0
51915-070LF
6450370-5
Solder connector recommended for board thickness of <0.090
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D1U-H-2800-52-HBxC.A08 Page 4 of 5
D1U-H-2800-52-HBxC Series
AC/DC Front End Power Supply
MECHANICAL DIMENSIONS
321,53
[ 12.659
7,87 ± 0,25
[ 0.310 ± 0.009
REF
]
289,00 ± 0,50
[ 11.378 ± 0.019
]
2,80 ± 0,25
[ 0.110 ± 0.009
1,00
[ 0.039
296,87
[ 11.688
267,54 ± 0,25
[ 10.533 ± 0.009
]
REF
]
]
140,00
[ 5.512
34,45 ± 0,35
[ 1.356 ± 0.013
]
]
± 0,40
± 0.015
]
41,00 ± 0,35
[ 1.614 ± 0.013
]
]
12,63 ± 0,35
[ 0.497 ± 0.013
]
Dimensions: 5.5" x 11.4" x 1.61" [140.0mm x 289.0mm x 41.0mm]
OPTIONAL ACCESSORIES
Description
Part Number
52V D1U-H output connector card
D1U-52-CONC
APPLICATION NOTES
Document Number
Description
Link
ACAN-28
D1U-52-CONC Output Connector Card
www.murata-ps.com/data/apnotes/acan-28.pdf
ACAN-30
D1U-H-2800-52 Communications Protocol
www.murata-ps.com/data/apnotes/acan-30.pdf
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
This product is subject to the following operating requirements
and the Life and Safety Critical Application Sales Policy:
Refer to: http://www.murata-ps.com/requirements/
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.
© 2012 Murata Power Solutions, Inc.
www.murata-ps.com/support
D1U-H-2800-52-HBxC.A08 Page 5 of 5