POWER
Data Sheet
Front-end Bulk Power
Total Output Power:
500 W
continuous
Wide Input Voltage:
-36 to -72 Vdc
SPECIAL FEATURES
500 W output power
High power and short form factor
1U power supply
High-density design: 12 W/in
3
Inrush current control
N+1 or N+N redundant
Active current sharing
Full digital control
PMBus compliant
Compatible with Artesyn’s
Universal PMBus GUI
Reverse airflow available
Two-year warranty
DS500SDC
500 Watts
Distributed Power System
Electrical Specifications
Input
Input range
Efficiency
Max input current
Inrush current
Conducted EMI
Radiated EMI
Hold-up time
-36 to -72 Vdc
90.0% peak
17.5 Arms
55 Apk
Class A
Class A
1 ms at full load
Main DC Output
MIN
Nominal setting
Total output regulation range
Dynamic load regulation
range
Output ripple
Output current
Current sharing
Capacitive loading
Startup from AC to output
Output rise time
1
COMPLIANCE
EMI Conducted/Radiated Class A
Limits
Output
Standby DC Output
MAX
0.20%
12.6 V
12.6 V
120 mVp-p
2 A
1
2000 µF
5 ms
41.67 A
40,000 µF
2200 ms
50 ms
2 ms
0.1A
N/A
47 uF
680 µF
1700 ms
60 ms
Within ±5% of full load rating
MIN
-1%
11.4 V
11.4 V
NOM
12
MAX
1%
12.6 V
12.6 V
120 mVp-p
3.0A
NOM
12
SAFETY
UL/cUL 60950 (UL Recognized)
DEMKO+ CB Report EN60950
EN60950
CE Mark
China CCC
-0.20%
11.4 V
11.4 V
Minimum current for transient load response testing only. Unit is designed to operate and be within
output regulation range at zero load.
DS500SDC Data Sheet
Electrical Specifications
Protections
Main Output
Overcurrent protection
2
Overvoltage protection
1
Undervoltage protection
Overtemperature protection
Fan fault protection
Standby Output
Overcurrent protection
3
Overvoltage protection
3
Undervoltage protection
120%
13.5 V
10.0 V
150%
15.0 V
11.0 V
MIN
120%
13.5 V
10.5 V
Yes
Yes
NOM
MAX
150%
15.0 V
11.0 V
LED Indicators
A single bi-color LED is used to indicate the power supply status.
Status LED
No DC input to PSU
Main output ON
Standby mode or Power supply failure (OCP, OVP, OTP, FAN FAULT:)
Off
Solid GREEN
Blinking AMBER
Accuracy Range
Output loading
Input voltage
Input current
Input power
Output voltage
Output current
Temperature
E
IN
Fan speed
PMBus
Remote ON/OFF
Latch mode
Autorecovery if the overcurrent is less than 120% and last only for <500 ms
3
Standby protection is auto-recovery
1
2
Firmware Reporting And Monitoring
5 to 20%
±0.55 A fixed error
±1.25 W at < 125 W input
±2%
0.3 A fixed error
±5 °C on the operating range
±15% from 10% to 20% load
Actual RPM ±250 RPM
YES
YES
±5%
±2%
20 to 50%
±2%
±4%
±1.25%
50 to 100%
DS500SDC Data Sheet
Electrical Specifications
Timing Specifications
Description
T
sb_On
T
sb_INPUT_OK
T
sb_Vout
T
INPUT_On_Delay
T
PWR_GOOD_On
T
INPUT_OK_Delay
T
PWR_GOOD_Hold-up
T
Vout_Hold-up
T
sb_Hold-up
T
PWR_GOOD_Off
T
PSON_On_Delay
T
PWOK_Low
Delay from DC input being applied to standby output being within regulation
Delay from standby output to INPUT_OK assertion
Delay from standby output to main output voltage being within regulation
Delay from DC input being applied to main output being within regulation
Delay from output voltages within regulation limits to PWOK asserted
Delay from loss of DC input to assertion of INPUT_OK
Delay from loss of DC input to deassertion of PWOK
Delay from loss of DC input to main output being within regulation
Delay from loss of DC input to standby output being within regulation
Delay from deassertion of PWOK to output falling out of regulation
Delay from PSON assertion to output being within regulation
Duration of PWOK being in deasserted state during an ON/OFF cycle of PSU
N/A
1
150
1
350
N/A
100
Min
20
See note below
Max
1700
20
300
2200
1000
6
0.2
Unit
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
Note: T
sb_hold-up
: tested at 1A load on standby output
T
sb_INPUT_OK
: INPUT_OK can assert earlier than the standby output
Environmental Specifications
Operating temperature
Operating altitude
Operating relative humidity
Non-operating temperature
Non-operating relative humidity
Non-operating altitude
Vibration and shock
ROHS compliance
MTBF
Operating life
Reliability
DS500SDC-3: 500 W from 0 °C to 50 °C
DS500SDC-3-001: 500 W from 0 °C to 40°C
up to 10,000 feet with derating
10% to 80% non-condensing
-40 °C to +70 °C
10% to 95% non-condensing
up to 50,000 feet
Standard operating/non-operating shock/vibration
YES
1,000,000 hours per Telcordia Issue 3, Method 1, Case 3 at 50 °C at full load.
Minimum of 5 years
All electronic component derating analysis is done at maximum ambient, 80% of maximum rated load,
nominal input line voltage.
DS500SDC Data Sheet
Timing Diagram
DC Input
T
sb_On
T
sb_Hold-up
T
Input_Delay
Vout_stby
T
sb_Vout
T
sb_INPUT_OK
INPUT_OK
T
Input_On_Delay
T
PWOK_Off
Vout_main
T
PWOK_On
PWOK
T
PWOK_Hold-up
T
PSON_On_Delay
T
PWOK_Off
PSON
DS500SDC Data Sheet
Control and Status Signals
Input Signals
PSON_L
Active LOW signal which enables/disables the main output. Pulling this signal LOW will turn-on the main output. Recommended pull-up resistor
to 12 VSB is 8.2 k with a 3.0 k pull-down to ground. A 100 pF decoupling capacitor is also recommended.
MIN
V
IL
V
IH
I
SOURCE
I
SINK
Input logic level LOW
Input logic level HIGH
Current that may be sourced by this pin
Current that may be sunk by this pin at low state
2.0 V
MAX
0.8 V
5.0 V
2 mA
0.5 mA
PSKILL_L
First break/last mate active LOW signal which enables/disables the main output. This signal will have to be pulled to ground at the system side
with a 220 ohm resistor. A 100 pF decoupling capacitor is also recommended.
MIN
V
IL
V
IH
I
SOURCE
I
SINK
Input logic level LOW
Input logic level HIGH
Current that may be sourced by this pin
Current that may be sunk by this pin at low state
2.0 V
MAX
0.8 V
5.0 V
2 mA
0.5 mA
Output Signals
INPUT_OK
Signal used to indicate the presence of DC input to the power supply. A logic level HIGH will indicate that the DC input to the power supply is
within the operating range while a logic level LOW will indicate that DC input has been lost.
This is an open collector/drain output. This pin is pulled high by a 1.0 kohm resistor connected to 3.3 V inside the power supply. It is recom-
mended that this pin be connected to a 100 pF decoupling capacitor and pulled down by a 100 kohm resistor.
MIN
V
IL
V
IH
I
SOURCE
I
SINK
PWR_GOOD / PWOK
Signal used to indicate that main output voltage is within regulation range. The PWR_GOOD signal will be driven HIGH when the output voltage is
valid and will be driven LOW when the output falls below the under-voltage threshold.
This signal also gives an advance warning when there is an impending power loss due to loss of DC input or system shutdown request. More details in
the Timing Section.
This is an open collector/drain output. This pin is pulled high by a 1.0 kohm resistor connected to 3.3 V inside the power supply. It is recom-
mended that this pin be connected to a 100 pF decoupling capacitor and pulled down by a 10 kohm resistor.
MIN
V
IL
V
IH
I
SOURCE
I
SINK
Input logic level LOW
Input logic level HIGH
Current that may be sourced by this pin
Current that may be sunk by this pin at low state
2.0 V
MAX
0.8 V
5.0 V
3.3 mA
0.7 mA
Input logic level LOW
Input logic level HIGH
Current that may be sourced by this pin
Current that may be sunk by this pin at low state
2.0 V
MAX
0.6 V
5.0 V
3.3 mA
0.7 mA
Embedded System
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