DS450-3 Datasheet, PDF (2/4 Pages) Astec America, Inc – 450-550 Watts 12V DS450-3/DS550-3 Distributed Power System

DS450-3/DS550-3 Data Sheet
Logic Control
PS Inhibit
PS_Status
AC_Pfail
Fan_Fault
Tach_1
When supply is inserted into the system the pin is pulled LOW and power supply is ON after all other pins are seated
I²C 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.
I²C 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.
Environmental Specifications
Operating temperature
-10 °C to 50 °C
Storage temperature
-40 °C to +70 °C
Altitude, operating
10,000 ft.
Electromagnetic susceptibility/Input transients
-EN61000-3-2, -3-3
-EN61000-4-2, 4.3, 4-4, -4-5, 4-11
-EN55024:1998
RoHS & lead-free compliant (no tantalum caps)
Humidity
20 to 90% RH, non-condensing
Shock and vibration specificatons complies with Artesyn Embedded Technologies Std. Specification.
MTBF (Demonstrated)
400 K Hrs at full load, 40 °C
Ordering Information
Output
Nominal Output
Voltage Set Point
DS450-3
12.0 Vdc
3.3 Vsb
DS450-3-002
12.0 Vdc
3.3 Vsb
DS550-3
12.0 Vdc
3.3 Vsb
Set Point
Tolerance
± 0.2%
± 1%
± 0.2%
± 1%
± 0.2%
± 1%
Total
Regulation
+5/-3%
+5/-4%
+5/-3%
+5/-4%
+5/-3%
+5/-4%
Minimum
Current
0A
0A
0A
0A
0A
0A
Maximum
Current
37.0 A
3.0 A
37.0 A
3.0 A
45.0 A
3.0 A
Output Ripple
P/P
Overcurrent
Options
120 mV
60 mV
39.5 A - 44.4 A
4.9 A Avg, 7 A max
Standard
120 mV
60 mV
39.5 A - 44.4 A
4.9 A Avg, 7 A max
Reverse Air
120 mV
60 mV
48.0 A - 54.0 A
4.9 A Avg, 7 A max
Standard
*Overcurrent latches off if overcurrent lasts over 1 second, otherwise it is auto recovery.
*For 5 Vsb, please contact marketing department.