NDS Series: 10W / 3.0A DC/DC Converters
36-75V Input
1.5V, 1.8V, 2.5V, 3.3V and 5.0V Outputs
Absolute Maximum Ratings
Product Specifications
Nov 2001
Stresses in excess of the absolute maximum ratings may cause performance degradation, adversely affect
long-term reliability and cause permanent damage to the converter. Specifications apply over specified input
voltage, output load and temperature range, unless otherwise noted.
Parameter
Input voltage (Vin)
Transient Input Voltage (Vint)
Operating CaseTemp. (Tc)
Storage Temperature (Ts)
ON/OFF Control Voltage (Vrc)
Conditions/Description
Continuous
Transient, 100ms
At 100% load
Referenced to -Vin
Min
36
-40
-55
-1.0
Max
75
100
100
120
5.5
Units
Vdc
Vdc
°C
°C
Vdc
Environmental and Mechanical Specifications
Specifications apply over specified input voltage, output load and temperature range, unless otherwise
noted.
Parameter
Conditions/Description
Min
Nom
Max
Units
Shock
IEC68-2-27
100
g
Sinusoidal Vibration
IEC68-2-6
10
g
Weight
0.4/10
oz/g
Water Washing
Standard process
Yes
N/A
MTBF
Per Bellcore TR-NWT-000332
2,500
kHrs
Isolation Specifications
Specifications apply over specified input voltage, output load and temperature range, unless otherwise
noted.
Parameter
Conditions/Description
Min
Nom
Max
Units
Insulation Safety Rating
Vin = 36 – 75Vdc
Basic
N/A
Isolation Voltage (Vps)
1,500
Vdc
Isolation Resistance (Rps)
10
MOhm
Isolation Capacitance (Cps)
4,100
pF
Input Specifications
Specifications apply over specified input voltage, output load and temperature range, unless otherwise
noted.
Parameter
Conditions/Description
Min
Nom
Max
Units
Input Voltage (Vin)
Continuous
36
48
75
Vdc
Input Current when Shutdown
Vin.Nom, Remote Control
3
6
mAdc
activated
Turn-On Input Voltage 36-75 Vin Ramping Up, Io.Max
32
34
36
Vdc
Turn-Off Input Voltage 36-75 Vin Ramping Down, Io.Max
30
32
34
Vdc
Turn-On Time
To Output Regulation Band
350
500
ms
After Remote Control
1
5
ms
Rise Time
1
5
ms
Input Reflected Ripple Current
Vin.Max, Io.Max
50
mAp-p
Input Capacitance
1.4
µF
5-Nov-01
Rev 1.1
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