Embedded Power for
Business-Critical Continuity
DS450-3/DS550-3
450 W - 550 W
Distributed Power System
Distributed Power Bulk Front-End
Total Output Power: 450 - 550 Watts
+12 Vdc Main Output
+3.3 Vdc Stand-by Output
Wide Range Input Voltage: 90 - 264 Vac
Rev. 03.15.11_82
DS450/DS550
1 of 4
Electrical Specifications
Special Features
• Active Power Factor Correction
• EN61000-3-2 Harmonic
Compliance
• Active AC Inrush Control
• 1U X 2U Form Factor
• 10.3 W / in
3
(DS550)
8.4 W / in
3
(DS450)
• +12 Vdc Output
• +3.3 Vdc Stand-By
• No Minimum Load Required
• Hot Plug Operation
• N + 1 Redundant
• Internal OR’ing Fets
• Active Current Sharing
• Built-in Cooling Fans
(40 mm x 28 mm)
• I
2
C Communication Interface Bus
• EERPOM for FRU Data
• Amber LED Status, Fan_Fail
• Green LED Status, Power Good /
AC_OK Status
• Internal Fan Speed Control
• Fan Fail Tach Output Signal
• One Year Warranty
Input
Input ra nge:
Frequency:
Inrush current:
Efficiency:
Conducted EMI:
Radiated EMI:
Power factor:
Leakage current:
Hold up time:
90 - 264 Vac (wide range)
47 - 63 Hz, single phase AC
15 A maximum
> 84% typical at full load, high line
FCC Subpart J EN55022 Class A
FCC Subpart J EN55022 Class A
0.99 typical
1.30 mA @ 240 Vac
20 ms minimum
+12 V
+3.3 Vsb
Factory Set, no pot adjustments
+12 Vdc; +5%/-3%
+3.3 Vsb; +5%/-4%
See Table 1 next page
+12 Vdc; 13.5 - 15 Vdc
+3.3 Vsb; 3.76 - 4.30 Vdc
+12 Vdc; 11.0 - 11.5 Vdc
+3.3 Vsb; 2.77 - 3.00 Vdc
1 Second max
2 - 20 mS, Monotonic
Output
Main DC voltage:
Stand-By:
Adjustment range:
Regulation:
Overcurrent:
Overvoltage:
Undervoltage:
Turn-on delay:
+12 V Output Rise Time:
Safety
•
•
•
•
•
UL/cUL 60950 (UL Recognized)
NEMKO+ CB Report EN60950
EN60950
CE Mark
China CCC
Embedded Power for
Business-Critical Continuity
Rev. 03.15.11_82
DS450/DS550
2 of 4
Logic Control
PS Inhibit:
PS_Status:
AC_Pfail:
When supply is inserted into the system the pin is pulled LOW and power supply is ON after all other pins are
seated
I
2
C port P6. When the power supply is on and running normal P6 is low. When the power supply is off, either
due to -PS_ON, PS_KILL, or a fault, then P6 is high.
I
2
C port P7. P7 is high except when the power supply turns the main outputs, not +3.3 Vsb, off due to an AC
failure (AC missing or too low for power supply operation). If the supply is turned off due to -PS_ON, PS_KILL,
or a fault, then P7 remains high.
The PSU will provides an open collector Tach 1 output.
This signal is generated from the fan. The signal should generate 2 pulses per revolution. The logic in the
system will be operating at 3.3 V.
Fan_Fault:
Tach_1:
Environmental Specifications
Operating temperature:
Storage temperature:
Altitude, operating:
-10 °C to 50 °C
-40 °C to +70 °C
10,000 ft.
Electromagnetic
-EN61000-3-2, -3-3
susceptibility / Input transients: -EN61000-4-2, 4.3, 4-4, -4-5, 4-11 Level
-EN55024:1998
RoHS & lead-free compliant (no tantalum caps)
Humidity:
MTBF (Demonstrated):
20 to 90% RH, non-condensing
400K Hrs at full load, 40 °C
Shock and vibration specificatons complies with Emerson Network Power Std. Specification, Q3205
Ordering Information
Output
DS450-3
DS550-3
Nominal Output
Voltage Set Point
12.0 Vdc
3.3 Vsb
12.0 Vdc
3.3 Vsb
Set Point
Total
Tolerance Regulation
± 0.2%
+5 / -3%
± 1%
+5 / -4%
± 0.2%
+5 / -3%
± 1%
+5 / -4%
Minimum
Current
0 A
0 A
0 A
0A
Maximum
Current
37.0 A
3.0 A
45.0 A
3.0 A
Output Ripple
P/P
120 mV
60 mV
120 mV
60 mV
Overcurrent
39.5 A - 44.4 A
4.9 A Avg, 7 A max
48.0 A - 54.0 A
4.9 A Avg, 7 A max
*Overcurrent latches off if overcurrent lasts over 1 second, otherwise it is auto recovery.
*For 5 Vsb, consult marketing.
(2X)
10.02"
(254.7)
F
1.52"
(38.4)
1.453"
(36.9)
J
G
13.29"
(337.6)
12.03"±0.3"
(305.6 ±0.8)
10.88"
(276.4)
(3X) 10.02"
(254.7)
F
E
Mechanical Drawing
3.07"
(78.0)
K
D
11.925" ±0.3"
(302.9 ±0.8)
2.84"
(72.2)
.228 ±.02
(5.8 ±0.5)
10.02"
(254.6)
F
B
.3976" ±.028"
(10.1 ±0.5)
.197" ±.02"
(5.0 ±0.5)
A
'POWER GOOD' GREEN
'FAULT' YELLOW
'AC GOOD' GREEN
1.575" ±0.3"
(40.0 ±0.8)
1.51" ±.03"
(38.4 ±0.8)
.1496" ±.02"
(3.8 ±0.5)
.972" ±0.2"
24.7 ±0.5
H
41.5 LATCH SPRING
DISTANCE (REF.)
C
2.913" ±.024")
(74.0 ±0.6)
.138" ±.020"
(3.5 ±0.5)
3.071" ±.03"
(78.0 ±0.8)
(3X) 254.6
F
3.0 ±0.3
Embedded Power for
Business-Critical Continuity
STD AIRFLOW
Rev. 03.15.11_82
DS450/DS550
3 of 4
Embedded Power for
Business-Critical Continuity
Americas
DC Output Connector Pinout Assignment
Male connector as viewed from the rear of the supply:
D1
C1
B1
A1
D2
C2
B2
A2
D3
C3
B3
A3
D4
C4
B4
A4
D5
C5
B5
A5
D6
C6
B6
A6
PB1 PB2 PB3 PB4 PB5 PB6
5810 Van Allen Way
Carlsbad, CA 92008
USA
Telephone: +1 760 930 4600
Facsimile: +1 760 930 0698
Rev. 03.15.11_82
DS450/DS550
4 of 4
Europe (UK)
Pin
PB 1
PB 2
PB 3
PB 4
PB 5
PB 6
A1
A2
A3
A4
A5
A6
B1
B2
B3
B4
B5
B6
C1
C2
C3
C4
C5
C6
D1
D2
D3
D4
D5
D6
Signal Name
+12 V Return
+12 V Return
+12 V Return
+12 V
+12 V
+12 V
PS_KILL
+12 V_Current Share
Logic Return
+3.3 V Stand-By
2
C Address BIT 0 Signal)
A0 (I
+3.3V Stand-By
Logic Return
Spare
Logic Return
+3.3 V Stand-By
SDA (I
2
C Data Signal)
PSON (Power Enable Signal)
Logic Return
Tach_1 (Fan Fail Signal)
Logic Return
+3.3 V Stand-By
SCL (I
2
C Clock Signal)*
VIN_GOOD (AC Input present)
-PS_Present (Power Supply Seated)
Spare
Logic Return
+3.3 V Stand-By
S_INT (Alert)
POK (Output Power Ok)
P1 - Power Supply Side
1. FCI Power Blade 51721 series
51721-10002406AA
2. Molex Power Connector
SD-87667 series
87667-7002
Mating Connector (System Side)
1. FCI Power Blade
51741-10002406CC
Strait Pins
2. FCI Power Blade
51761-10002406AA
Right Angle
Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX
United Kingdom
Telephone: +44 (0) 1384 842 211
Facsimile: +44 (0) 1384 843 355
Asia (HK)
14/F, Lu Plaza
2 Wing Yip Street
Kwun Tong, Kowloon
Hong Kong
Telephone: +852 2176 3333
Facsimile: +852 2176 3888
For global contact, visit:
www.Emerson.com/EmbeddedPower
techsupport.embeddedpower
@emerson.com
While every precaution has been taken to ensure
accuracy and completeness in this literature, Emerson
Network Power assumes no responsibility, and disclaims
all liability for damages resulting from use of this
information or for any errors or omissions.
Emerson Network Power.
The global leader in enabling
business-critical continuity.
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*Supports I2C standard mode (100 kHz) only
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