NDS Series: 10W / 3.0A DC/DC Converters
36-75V Input
1.5V, 1.8V, 2.5V, 3.3V and 5.0V Outputs
Product Specifications
Nov 2001
Features
•
•
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•
•
•
•
•
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Single board design
8.2 mm height profile
Input/output isolation: 1500 Vdc
Low conducted and radiated EMI
Excellent co-planarity
Output overcurrent protection
Full rated output power at 100LFM airflow
Operating temperature to 100°C
Remote shutdown (primary referenced)
Output voltage trim adjust, positive or
negative
rd
UL, CSA and EN/IEC60950 (3 ed.)
approvals pending
Applications
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Distributed power architectures
Telecommunications equipment
LAN/WAN applications
Data processing
Industrial applications
Description
The NDS series of converters are low profile, single output, DC/DC converters intended for SMT placement
and reflow soldering. The product provides on-board conversion of standard telecom, datacom and
industrial input voltages to isolated low output voltages. Proprietary patented manufacturing process
ensures optimal quality with full process automation. These are high performance, cost effective converters
with an extremely small PCB footprint.
Selection Chart
Model
NDS03ZA-M6
NDS03ZB-M6
NDS03ZD-M6
NDS03ZE-M6
NDS02ZG-M6
Input voltage
range,
Vdc
36-75
36-75
36-75
36-75
36-75
Input
current,
max Adc
0.18
0.22
0.28
0.35
0.35
Output
voltage,
Vdc
1.5
1.8
2.5
3.3
5.0
Output rated
current,
Adc
3.0
3.0
3.0
3.0
2.0
Output ripple
and noise,
mVp-p
40
45
60
75
90
Efficiency,
%
77
79
83
85
87
5-Nov-01
Rev 1.1
www.power-one.com
Page 1 of 14
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
www.power-one.com
Page 2 of 14
NDS Series: 10W / 3.0A DC/DC Converters
36-75V Input
1.5V, 1.8V, 2.5V, 3.3V and 5.0V Outputs
Output Specifications
Product Specifications
Nov 2001
All specifications apply over input voltage, output load and temperature range, unless otherwise noted.
NDS03ZA : 1.5V/3.0A
Parameter
Output Voltage
Setpoint Accuracy
Output Current
Line Regulation
Load Regulation
Dynamic Regulation
Peak Deviation
Settling Time
Output Voltage Ripple*
Admissible Load
Capacitance
Output Current Limit
Threshold
Switching Frequency
Temperature
Coefficient
Trim Range
Vo
Io
Conditions/Description
Vin.Nom, Io = 1.5A, 25°C
Vin.Min to Vin.Max
Vin.Min to Vin.Max, 50%
Io.Max
Vin.Nom, Io.Min to Io.Max
50-100% Io.Max load step
change.
to 1% error band
Vin.Min to Vin.Max, Io.Min to
Io Max, 20MHz Bandwidth
Io.Max, Vin.Nom
Vout
≤0.90
Vo.Nom
Vin.Nom, Io.Max
Io.Min to Io.Max, Vin.Min to
Vin.Max
1.35
Min
1.48
0
Nom
1.50
Max
1.52
3.0
25
25
250
1,150
75
2,200
120
400
0.02
1.65
200
Units
Vdc
Adc
mV
mV
± mV
µs
mVp-p
µF
%Io.Max
kHz
%Vo/°C
Vo
Vr
Comax
Icl
Fs
Tco
Vt
40
* Measured with a 1µF ceramic across the output pins
NDS03ZA Characteristic curves
Vout (V)
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
0.00
0.45
0.90
1.35
1.80
2.25
2.70
3.15
3.60
4.05
4.50
4.95
5.40
5.85
Output Voltage Vs Load
Efficiency
90%
80%
70%
60%
50%
40%
Efficiency Vs Load
Vin Min
Vin Nom
Vin Max
30%
20%
10%
0%
0.00
0.15
0.30
0.60
0.90
1.20
1.50
1.80
2.10
2.40
Vin Min
Vin Nom
Vin Max
2.70
3.00
Iout (A)
Iout (A)
5-Nov-01
Rev 1.1
www.power-one.com
Page 3 of 14
NDS Series: 10W / 3.0A DC/DC Converters
36-75V Input
1.5V, 1.8V, 2.5V, 3.3V and 5.0V Outputs
Output Specifications
Product Specifications
Nov 2001
All specifications apply over input voltage, output load and temperature range, unless otherwise noted.
NDS03ZB : 1.8V/3.0A
Parameter
Output Voltage
Setpoint Accuracy
Output Current
Line Regulation
Load Regulation
Dynamic Regulation
Peak Deviation
Settling Time
Output Voltage Ripple*
Admissible Load
Capacitance
Output Current Limit
Threshold
Switching Frequency
Temperature
Coefficient
Trim Range
Vo
Io
Conditions/Description
Vin.Nom, Io = 1.5A, 25°C
Vin.Min to Vin.Max
Vin.Min to Vin.Max, 50%
Io.Max
Vin.Nom, Io.Min to Io.Max
50-100% Io.Max load step
change.
to 1% error band
Vin.Min to Vin.Max, Io.Min to
Io Max, 20MHz Bandwidth
Io.Max, Vin.Nom
Vout
≤0.90
Vo.Nom
Vin.Nom, Io.Max
Io.Min to Io.Max, Vin.Min to
Vin.Max
1.62
Min
1.78
0
Nom
1.80
Max
1.82
3.0
25
25
250
1,150
75
2,200
120
400
0.02
1.98
200
Units
Vdc
Adc
mV
mV
± mV
µs
mVp-p
µF
%Io.Max
kHz
%Vo/°C
Vo
Vr
Comax
Icl
Fs
Tco
Vt
50
* Measured with a 1µF ceramic across the output pins
NDS03ZB Characteristic curves
Output Voltage Vs Load
Vout (V)
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
0.00
0.60
1.20
1.80
2.40
3.00
3.60
4.20
4.80
5.40
6.00
Efficiency Vs Load
Efficiency
90%
80%
70%
60%
50%
40%
Vin Min
Vin Nom
Vin Max
30%
20%
10%
0%
0.00
0.15
0.30
0.60
0.90
1.20
1.50
1.80
2.10
Vin Min
Vin Nom
Vin Max
2.40
2.70
3.00
Iout (A)
Iout (A)
5-Nov-01
Rev 1.1
www.power-one.com
Page 4 of 14
NDS Series: 10W / 3.0A DC/DC Converters
36-75V Input
1.5V, 1.8V, 2.5V, 3.3V and 5.0V Outputs
Output Specifications
Product Specifications
Nov 2001
All specifications apply over input voltage, output load and temperature range, unless otherwise noted.
NDS03ZD : 2.5V/3.0A
Parameter
Output Voltage
Setpoint Accuracy
Output Current
Line Regulation
Load Regulation
Dynamic Regulation
Peak Deviation
Settling Time
Output Voltage Ripple
Admissible Load
Capacitance
Output Current Limit
Threshold
Switching Frequency
Temperature
Coefficient
Trim Range
Vo
Io
Conditions/Description
Vin.Nom, Io = 1.5A, 25°C
Vin.Min to Vin.Max
Vin.Min to Vin.Max, 50%
Io.Max
Vin.Nom, Io.Min to Io.Max
50-100% Io.Max load step
change.
to 1% error band
Vin.Min to Vin.Max, Io.Min to
Io Max, 20MHz Bandwidth
Io.Max, Vin.Nom
Vout
≤0.90
Vo.Nom
Vin.Nom, Io.Max
Io.Min to Io.Max, Vin.Min to
Vin.Max
2.25
Min
2.47
0
Nom
2.5
Max
2.53
3.0
50
50
250
1,150
75
2,200
120
400
0.02
2.75
200
Units
Vdc
Adc
mV
mV
± mV
µs
mVp-p
µF
%Io.Max
kHz
%Vo/°C
Vo
Vr
Comax
Icl
Fs
Tco
Vt
50
* Measured with a 1µF ceramic across the output pins
NDS03ZD Characteristic curves
Output Voltage Vs Load
Vout (V)
3.00
2.50
2.00
1.50
1.00
0.50
0.00
0.00
0.60
1.20
1.80
2.40
3.00
3.60
4.20
4.80
5.40
6.00
Efficiency Vs Load
Efficiency
90%
80%
70%
60%
50%
40%
Vin Min
Vin Nom
Vin Max
30%
20%
10%
0%
0.00
0.15
0.30
0.60
0.90
1.20
1.50
1.80
2.10
Vin Min
Vin Nom
Vin Max
2.40
2.70
3.00
Iout (A)
Iout (A)
5-Nov-01
Rev 1.1
www.power-one.com
Page 5 of 14
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