Input Specifications
Parameter
Operating Range
Inrush Current Limiting
36V
DC
72V
DC
Efficiency
48V
DC
at full load
70
25
50
A
PK
A
PK
%
Conditions
DC
Min
36
Typ
48
Max
72
Units
V
DC
Remote Sense
Remote Sense is provided on Output #1 and will
compensate for 0.7V of line drop. Remote Sense leads
are protected against open, short and reversal.
Remote On/Off (Optional)
The power supply is turned on with a TTL logic ‘1’ (or open)
signal and turned off by a switch closure or TTL logic ‘0’
referenced to (-) sense terminal.
Over Voltage Protection
Output #1: 6.5V ± 0.5 V
DC.
The power supply will latch off until AC power is cycled.
Over Current Protection
Individual current limit on all outputs. Automatic recovery
upon fault removal.
Active Inrush Current Limiting
Inrush current is independent of ambient temperature.
Transient Response
The peak output voltage excursion will not exceed 2% and
will recover within 1% in 200
μsec
for a 25% load step
change.
Over Temperature Protection
Thermal switch turns off power supply if overheating occurs
and automatically restarts.
Safety
Safety Certified to UL/CUL to 1950, File Number E131694.
TUV to EN60950/IEC 950.
Cooling
The unit is designed to operate with 30 CFM of airflow.
Page 2
DNX350 4/2002 REV B
Output Voltages and Maximum Rated Loads
OUTPUT #1
V
OUT
I
MAX
+5V
± 5V
± 5V
± 5V
± 5V
± 5V
± 5V
± 5V
± 5V
± 5V
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
± 12V
± 15V
± 12V
± 12V
± 12V
± 15V
± 15V
± 15V
± 15V
10A/12A
10A/12A
10A/12A
10A/12A
10A/12A
10A/12A
10A/12A
10A/12A
10A/12A
± 12V
± 15V
± 12V
± 12V
± 12V
± 15V
± 15V
± 15V
± 15V
8A/10A
8A/10A
8A/10A
8A/10A
8A/10A
8A/10A
8A/10A
8A/10A
8A/10A
-
-
± 5V
± 24V
± 12V
± 5V
± 24V
± 12V
± 12V
-
-
3.0A
1.5A
3.0A
3.0A
1.5A
3.0A
3.0A
MODEL NUMBER
DNX350-U1A
DNX350-U3A
DNX350-U3B
DNX350-U4C
DNX350-U4D
DNX350-U4E
DNX350-U4F
DNX350-U4G
DNX350-U4H
DNX350-U4I
OUTPUT #2
V
NOM
I
MAX
/I
PK
OUTPUT #3
V
NOM
I
MAX
/I
PK
OUTPUT #4
V
NOM
I
MAX
/I
PK
Output Specifications
Parameter
Regulation
Line
Load
Cross
Minimum Load
Output #1
Auxiliary Outputs
3.0A
0.1A
± 0.03%
±0.25%
±0.05%
Limits
Parameter
Voltage Adustment Range
PARD
Temperature
Operating
Storage
Temperature Coefficient (T
C
)
Conditions
Nominal line on all outputs
Peak-to-peak 20 MHz bandwidth
Min
Typ
±5
Max
1
Units
%
% P-P
0
-20
After half hour warm-up
± 0.02
50
+70
°C
°C
%/°C
DNX350 4/2002 REV B
Page 3
Mechanical
TOP MOUNTED
FAN
1
TB1
PLUS
6.94
3.34
NO. 1 +V
OUTPUTS
NO. 1 -V
FAN OPTION
1
2
3
AIR FLOW
MINUS
OUTPUT OUTPUT
4
3
ADJ.
ADJ.
OUTPUT
5
ADJ.
1
4.85 3.60
3.90
0.62
0.55
0.25
1
TB2
6-32 MOUNTING LOCATED ON BOTTOM (4x)
8.50
9.00
1.99
3.00
END MOUNTED
FAN
0.250
8.50
2.15
0.550
J10
TB2
3.900
AIR FLOW
4.850
J9
3
2
1
1.00
9.00
6-32 THD
4 PLC'S
OUTPUT NO. 1
RETURN
10-32 STUD
OUTPUT NO. 1
10-32 STUD
NOTES:
All measurements are in inches
COOLING:
The DNX350 is designed to operate with 30 CM airflow.
SHOCK AND VIBRATION:
The DNX350 meets the requirements of MIL STD-810D.
WEIGHT:
Approximately 3 lbs.
1
Terminal Block 1
POS
1
2
3
FUNCTION
DC +
DC -
Ground
Terminal Block 2
POS
1
2
3
4
5
6
FUNCTION
-V2
+V2
-V3
+V3
-V4
+V4
PIN
1
2
3
4
5
6
7
8
9
J9 Connector
Molex No. 22-28-1090
FUNCTION
+ Sense
- Sense
N/C
N/C
Start Up Sync.
N/C
Remote Inhibit
Current Share
Control Signal Rtn
POS
1
2
3
J10 Connector*
AMP 1-480701-1
FUNCTION
DC+
DC-
GROUND
*Used with end-mounted fan cover,
option “V”
Page 4
DNX350 4/2002 REV B