is a 1600 Watt, power-factor-corrected (PFC) front-end power supply for hot-swapping redun-
dant systems. The main output is 48V and standby output of either 12V, 5V or 3.3V. Packaged in 1U low profile, it is
designed to deliver reliable bulk power to servers, workstations, storage systems or any 48V distributed power archi-
tecture systems requiring high power density. The highly efficient electrical and thermal design with internal cooling
fans supports reliable operation conditions. The D1U-W-1600 is designed to auto-recover from over-temperature
faults. Status information is provided with front panel LEDs, logic signals and I
2
C management interface. Three units
can be packaged into a 19" 1U power shelf to provide up to 4.8kW of power.
SELECTION GUIDE
Part Number
FEATURES
compliant
RoHS
1600W (220Vac), 1200W (110Vac)
Output power
Main output, 3.3V, 5V or 12V standby
48V
output
sized; dimensions 4.75"x12.00"x1.61"
1U
Watts per cubic inch density
17.5
redundancy capable, including hot-docking
N+1
Active current sharing on main output
Over-voltage, over-current,
over-temperature protection
Internal cooling fans
Bus Interface with status indicators
I²C
Power Output Power Output
Standby
Main Output
High Line AC Low Line AC
Output
In Production
Airflow
Back to front
Back to front
Back to front
Front to back
Front to back
Front to back
D1U-W-1600-48-HC2C
D1U-W-1600-48-HA2C
D1U-W-1600-48-HB2C
D1U-W-1600-48-HC1C
D1U-W-1600-48-HA1C
D1U-W-1600-48-HB1C
In Production
1600W
1600W
1600W
1600W
1600W
1600W
1200W
1200W
1200W
1200W
1200W
1200W
48V
48V
48V
48V
48V
48V
3.3V
5V
12V
3.3V
5V
12V
INPUT CHARACTERISTICS
Parameter
Input Voltage Operating Range
Input Frequency
Turn-on Input Voltage
Turn-off Input Voltage
Maximum Input Current
Inrush Current
Power Factor
Conditions
Ramp up
Ramp down
Low Line AC 90Vac
High Line AC 180Vac
Cold start between 0-1msec
Output load >90%
Output load >50%
Min.
90
47
78.5
70.5
Typ.
115/230
50/60
Max.
264
63
86.5
78
15
10
90
Units
Vac
Hz
Vac
Arms
Apk
95%
75%
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
CPS_D1U-W-1600-48-Hx.E02
Page 1 of 5
D1U-W-1600-48-Hx Series
AC-DC Front End Power Supply
OUTPUT VOLTAGE CHARACTERISTICS
Output
Voltage
Parameter
Voltage Set Point Accuracy
Line and Load Regulation
Ripple Voltage & Noise
1
Output Current
Load Capacitance
Voltage Set Point Accuracy
Line and Load Regulation
Ripple Voltage & Noise
1
Operating Range
Load Capacitance
Voltage Set Point Accuracy
Line and Load Regulation
Ripple Voltage & Noise
1
Operating Range
Load Capacitance
Voltage Set Point Accuracy
Line and Load Regulation
Ripple Voltage & Noise
1
Operating Range
Load Capacitance
Conditions
Min.
46.54
Typ.
48
Max.
49.44
480
33
10000
Units
Vdc
mV p-p
A
µF
Vdc
mV p-p
A
µF
Vdc
mV p-p
A
µF
Vdc
mV p-p
A
µF
48V
20MHz Bandwidth
2
3.3
3.2
20MHz Bandwidth
0
5
4.85
20MHz Bandwidth
0
12
11.6
20MHz Bandwidth
0
3.3Vsb
3.4
50
4.5
1530
5.15
50
4
1530
12.4
120
1.7
1530
5Vsb
12Vsb
OUTPUT CHARACTERISTICS
Parameter
Remote Sense
Efficiency
Output Rise Monotonicity
Start-up Time
Conditions
Min.
Typ.
Max.
Units
mV
%
s
ms
mV
Transient Response
240
220Vac
90.6
Overshoot less than 10% for all outputs, no voltage negative between 10% to 95% during ramp up
AC ramp up
1.5
PS_On activated
150
48V Ramp 1A/μs, 50% load step
±2700
3.3Vsb Ramp 1A/μs, 50% load step
±165
5Vsb Ramp 1A/μs, 50% load step
±250
12Vsb Ramp 1A/μs, 50% load step
±600
At 100% load
All outputs within regulation
Max. load, nominal Vin
20
±10
Current sharing accuracy (up to 6 in parallel)
Hot Swap Transients
Hold-up Time
%
ms
GENERAL CHARACTERISTICS
Parameter
Storage Temperature Range
Operating Temperature Range
Operating Humidity
Storage Humidity
Shock
Sinusoidal Vibration
MTBF
Acoustic
Safety Approvals
Input Fuse
Material Flammability
Switching Frequency
Weight
1
Conditions
Non-condensing
Non-condensing
Min.
-40
0
10
5
Typ.
Max.
70
50
90
90
Units
°C
%
30G non operating
0.5G, 5 – 500 Hz operating
Calculated per Bellcore at Ta=30°C
200
Demonstrated
200
ISO 7779-1999
c-CSA-us (CSA 60950-1-03/UL 60950-1, Second Edition)
TUV approval (Bauart) EN 60950-1:2001
60
Khrs
Khrs
dB LpAm
Power Supply has internal 20A/250V fast blow fuse on the AC line input
UL 94V-0
90KHz for Boost PFC Converter
165KHz for Main Output Converter
200KHz for Standby Output Converter
2.1kg
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.
www.murata-ps.com/support
CPS_D1U-W-1600-48-Hx.E02
Page 2 of 5
D1U-W-1600-48-Hx Series
AC-DC Front End Power Supply
PROTECTION CHARACTERISTICS
Output
Voltage
48V
12Vsb
3.3Vsb
5Vsb
Parameter
Over-temperature
Over Voltage
Over Current
Over Voltage
Over Current
Over Voltage
Over Current
Over Voltage
Over Current
Conditions
Auto-restart
Latching
Latching
Latching
Latching
Latching
Latching
Latching
Latching
Min.
55
54
37
13
2.5
3.57
6.5
5.6
5
Typ.
Max.
65
59
42
14
3
4.02
8
6
7
Units
°C
V
A
V
A
V
A
V
A
ISOLATION CHARACTERISTICS
Parameter
Insulation Safety Rating / Test Voltage
Isolation
Material Flammability
Grounding
Conditions
Min.
Typ.
Max.
Units
Input to Output - Reinforced
3000
Vrms
Input to Chassis - Basic
1500
Vrms
Output to Chassis
Output to Output
UL 94V-0
Main Output Return and Standby Output Return are connected internally. 100kΩ resistor parallel with 100nF
capacitor is connected between Return and power supply chassis. Main Output Return should be connected to
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