DS450DC-3 Datasheet, PDF (2/4 Pages) Emerson Network Power – Distributed Power System

Embedded Power for
Business-Critical Continuity
Logic Control
PS_ON/L
(Power supply enable)
The power supply output will be enabled when this signal is
pulled low (<0.8 V).
HIGH = Output V1 OFF
LOW = Output V1 ON
VIN_GOOD/H (Input OK)
POK/H (Output OK)
TACH_1
PS_KILL
Active High signal asserted when the input voltage rises above
the min input voltage specified.
This signal is internally pulled up through 4.7 K ohms to the
3.3 V housekeeping voltage.
Active High signal asserted when the output is within regula-
tion. This signal is internally pulled up through 1.0 K ohms to
the 3.3 V housekeeping voltage.
This open collector signal generates two pulses per each fan
revolution. This signal is eternally pulled up to the
housekeeping voltage.
This signal will cause the output to shut down when drive high
(>24 V) or left floating. The PS_KILL will cause the output to
latch off and requires recycle of PS_ON or DC input to reset.
Digital Control
PMBus - I²C compliant
Environmental Specifications
Operating temperature:
+10° to 45°C (50% power derating at 70°C)
Storage temperature:
Altitude, operating:
-40°C to +70°C
10,000ft.
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:
20 to 90% RH, non-condensing
Shock and vibration specificatons complies with Astec Std. Specifications, Q3205
MTBF (observed)
500K Hrs at 80%, 40°C
Table 1
Ordering Information
Output
Nominal Output Set Point Total Minimum Maximum
Voltage Set Point Tolerance Regulation Current Current
DS450DC-3
DS450DC-3-002
12.0vdc
3.3vsb
12.0vdc
3.3vsb
±0.2% +5 / -3%
0A
±1%
+5 / -4%
0A
±0.2% +5 / -3%
0A
±1%
+5 / -4%
0A
37.0A
3.0A
37.0A
3.0A
DS550DC-3
DS550DC-3-003
12.0vdc
3.3vsb
12.0vdc
3.3vsb
±0.2% +5 / -3%
0A
±1%
+5 / -4%
0A
±0.2% +5 / -3%
0A
±1%
+5 / -4%
0A
45.0A
3.0A
45.0A
3.0A
*Over current latches off if overcurrent lasts over 1 seconds, otherwise it is auto recovery.
*For 5vsb, consult marketing.
Output Ripple
P/P
Over Current
120mV
60mV
39.5 - 44.4%
4.9A Avg, 7A max
120mV
60mV
39.5 - 44.4%
4.9A Avg, 7A max
120mV
60mV
48.0A - 54.0A
4.9A Avg, 7A max
120mV
60mV
48.0A - 54.0A
4.9A Avg, 7A max
Options
Standard
Reverse Air
Standard
Reverse Air
Rev. 12.15.08
DS450DC/DS550DC
 of 4