DS2900
2900 Watts
Distributed Power System
Rev.04.10.12_#1.0
DS2900-3 Series
Page 1
Total Power:
2900 Watts
Input Voltage:
180-264 Vac
# of Outputs:
Main + standby
Special Features
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Active power factor correction
EN61000-3-2 harmonic compliance
Active AC inrush control
2U X 3U form factor
24.8 W / in
3
+12 Vdc Output
+3.3 Vdc stand-by
(5 V standby - consult factory)
No minimum load required
Hot plug operation
N + 1 redundant
Internal OR’ing fets
Active current sharing
(10 - 100% load)
I
2
C communication interface bus
PMBus compliant
EERPOM for FRU data
2 LED (Green and Amber)
Internal fan speed control
INTEL, SSI Std. logic timing
INTEL, SSI Std. FRU data format
Full digital control
Two year warranty
Product Descriptions
The DS2900 power supply features a very wide 180V to 264 Vac input voltage
range and employ active power factor correction to minimize input harmonic
current distortion and to ensure compliance with the international EN61000-3-2
standard – they have a power factor of 0.99 typical. The power supplies also
feature active ac inrush control, to automatically limit inrush current at turn-on to
50 A maximum, and is protected against overvoltage conditions up to 130
percent.
The power supply employs a new patent-pending ultra high efficiency conversion
topology, together with an innovative power transformer and rectifier construction
that further improves power density and reduces interconnect power losses. The
power supply’s main +12 Vdc payload output is digitally programmable over the
range 11.52 to 12.48Vdc, and users have a choice of standard I
2
C or advanced
PMBus communications. The control software runs under Windows® on any
standard PC, and uses a highly intuitive graphical user interface to simplify
power supply set-up.
The DS2900 can deliver up to 240 A from its main +12 Vdc payload output, and
up to 3A from its +3.3 Vdc auxiliary output. The supply has a 2U x 3U form
factor and has a power density of more than 24.8 watts per cubic inch. The
DS2900 can achieve a very high – 91 percent typical – conversion efficiency at
50 percent load.
Safety
UL/cUL 60950 (UL Recognized)
NEMKO+ CB Report EN60950
EN60950
CE Mark
China CCC
Electrical Specifications
Absolute Maximum Ratings
Rev.04.10.12_#1.0
DS2900-3 Series
Page 3
Stress in excess of those listed in the “Absolute Maximum Ratings” may cause permanent damage to the power supply.
These are stress ratings only and functional operation of the unit is not implied at these or any other conditions above
those given in the operational sections of this TRN. Exposure to any absolute maximum rated condition for extended
periods may adversely affect the power supply’s reliability.
Table 1. Absolute Maximum Ratings:
Parameter
Input Voltage:
AC continuous operation
Maximum Output Power (Main + Stand-by)
All models
Isolation Voltage
Input to outputs
Input to safety ground
Outputs to safety ground
Ambient Operating Temperature
Storage Temperature
Humidity (non-condensing)
Operating
Non-operating
Altitude
Operating
Non-operating
Note 1: With power derating at 70
O
C
Model
All models
Symbol
V
IN,AC
P
O,max
Min
180
-
-
-
-
Typ
-
-
-
-
-
-
-
-
-
-
-
Max
264
2900
2500
2500
NA
+70
1
+85
90
95
10,000
30,000
Unit
Vac
W
Vdc
Vdc
Vdc
O
C
O
C
All models
All models
All models
All models
All models
All models
All models
All models
All models
T
A
T
STG
0
-40
20
10
-
-
%
%
feet
feet
Input Specifications
Table 2. Input Specifications:
Parameter
Operating Input Voltage, AC
Input Vac Source Frequency
Maximum Input Current
(I
O
= I
O,max
, I
VSB
= I
VSB,Max
)
Standby Input Current
(V
O
Off, I
VSB
= 0A)
No Load Input Current
(V
O
On, I
O
= 0A, I
VSB
= 0A)
No Load Input Power
(V
O
On, I
O
= 0A, I
VSB
= 0A)
Harmonic Line Currents
Power Factor
Startup Surge Current (Inrush)
@ 25
O
C
Input Fuse
Isolation – Input to Output
Isolation – Input to Chassis
Leakage Current to earth ground
PFC Switching Frequency
Operating Efficiency @ 25
O
C
System Stability:
Phase Margin
Gain Margin
V
IAC
= 240V
AC
f
IAC
= 50/60 Hz
All
I
O
= I
O,max
V
IAC
= 230V
AC
f
SW,PFC
η
V
IAC
= 180V
AC
Conditions
Symbol
V
IAC
f
IAC
I
I,max
I
I,standby
I
I,no_load
P
I,no_load
THD
-
-
Min
180
47
-
-
-
-
Typ
230
50/60
-
-
-
-
Per IEC1000-3-2
0.99
-
-
50
Max
264
63
20
250
600
60
Rev.04.10.12_#1.0
DS2900-3 Series
Page 4
Unit
Vac
RMS
Hz
A
RMS
mA
RMS
mA
RMS
W
V
IAC
= 180V
AC
V
IAC
= 180V
AC
V
IAC
= 180V
AC
All
All
V
IAC
= 264V
AC
Internal, L and N
5x20mm, Quick Acting
25A, 250V
A
PK
-
-
-
-
50
90
45
10
-
2500
2500
-
25
-
-
1.4
60
A
Vdc
Vdc
mA
kHz
%
Ø
dB
-
-
-
-
Embedded System
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