HNT Series: 100W DC/DC Converter
36-75V Input
Triple output: 3.3V / 2.5V / 1.8V (outputs can be trimmed from 0.75V to 5.15V)
Product Datasheet
Oct 2002
Features
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Extremely wide output voltage adjust range
Sequencing of outputs
Single board design
Low profile < 8.5 mm height
Input/output isolation: 1500 Vdc
Full nominal rated power @ 70°C, 200 LFM
Low conducted and radiated EMI
Output overcurrent protection
Overtemperature protection
Remote on/off (primary referenced)
Negative shutdown logic - optional
Operation to 110°C
UL, CSA and EN/IEC60950 (3
rd
ed.)
approvals pending
Applications
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•
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Distributed power architectures
Telecommunications equipment
LAN/WAN applications
Data processing
Networking systems
Description
The HNT series are industry standard, half brick DC/DC converters that reduce time to market and require
less board space by providing programmable outputs from one, easy to use package. These converters
offer low profile, triple output, with extremely flexible trim ranges and current distribution between outputs.
This product range provides onboard conversion of standard telecom, datacom, and industrial input voltages
to isolated low output voltages without the need for any additional cooling.
Selection Chart
Model
Input voltage
range,
Vdc
Input
current,
max Adc
Output
voltage,
Vdc
3.3
HNT45ZEDB
36-75
3.3
2.5
1.8
Output rated
current,
Adc
15
15
15
Output ripple
and noise,
mVp-p
75
75
75
86
Efficiency,
%
Oct 10, 2002
Rev 0.96
www.power-one.com
Page 1 of 14
HNT Series: 100W DC/DC Converter
36-75V Input
Triple output: 3.3V / 2.5V / 1.8V (outputs can be trimmed from 0.75V to 5.15V)
Absolute Maximum Ratings
Product Datasheet
Oct 2002
Stresses in excess of the absolute maximum ratings may cause performance degradation, adversely effect
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)
Total Unit Power
Individual Output Power
ON/OFF Control Voltage (Vrc)
Conditions/Description
Continuous
Transient, 100ms
All operating conditions
Three outputs combined, all conditions
Each output alone, all conditions
Referenced to -Vin
Min
36
-45
-55
Max
75
100
110
125
100
50
25
Units
Vdc
Vdc
°C
°C
W
W
Vdc
-15
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
1.8/51
oz/g
Water Washing
Standard process
Yes
MTBF (GB @ nom conditions) Per Bellcore TR-NWT-000332
1,059
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
Basic
Isolation Voltage (Vps)
1,500
Vdc
Isolation Resistance (Rps)
10
MΩ
Isolation Capacitance (Cps)
2,200
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 activated
10
mAdc
Switching Frequency
Vin.Nom, Io.Max
400
kHz
Input Current No Load
Vin.Nom, Io = 0
30
mAdc
Turn-On Input Voltage
Ramping Up, Io.Max
32
34
36
Vdc
Turn-Off Input Voltage
Ramping Down, Io.Max
30
32
34
Vdc
Turn-On Time
To Output Regulation Band
100
500
ms
After Remote Control
25
ms
Rise Time
5
ms
Input Reflected Ripple Current Vin.Max, Io.Max
50
mA p-p
Input Capacitance
3.0
µF
Oct 10, 2002
Rev 0.96
www.power-one.com
Page 2 of 14
HNT Series: 100W DC/DC Converter
36-75V Input
Triple output: 3.3V / 2.5V / 1.8V (outputs can be trimmed from 0.75V to 5.15V)
Output Specifications
Product Datasheet
Oct 2002
All specifications apply over input voltage, output load, and temperature range, unless otherwise noted.
HNT45ZEDB: Vo1 (3.3V)
Parameter
Output Voltage
Setpoint Accuracy
Output Current
Line Regulation
Load Regulation
Dynamic Regulation
Peak Deviation
Settling Time
Output Voltage Ripple
3
Admissible Load
Capacitance
Output Current Limit
Threshold
Temperature
Coefficient
Trim Range
1
2
Vo1
Io1
Conditions/Description
Vin.Nom, Io = 8.0, 25°C
Vin.Min to Vin.Max
Vin.Min to Vin.Max, 50%
Io.Max
Vin.Nom, Io.Min to Io.Max
25-75% 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
Vo2, Io2nom, Vo3, Io3nom
Io.Min to Io.Max, Vin.Nom to
Vin.Max
Min
3.27
1.5
Nom
3.30
8.0
10
20
Max
3.33
15
1
20
50
300
300
120
6,800
Units
Vdc
Adc
mV
mV
± mV
µs
mVp-p
µF
%Io.Max
%Vo/°C
Vdc
Vr
Comax
Icl
Tco
Vt
75
110
135
150
0.02
1.4
2
5.15
If output is trimmed to maximum voltage, max current is reduced linearly to 8A
Optimum trim range from 2.4V to 5.15V, outside this range start-up overshoot & dynamic response may disimprove
3
Measured with a minimum 1µF ceramic capacitor across output pins
HNT45ZEDB - Output 1 - Characteristic curves
Output Voltage Vs Load
4.0
3.5
3.0
3.5
Cross Reg Versus Load
3.0
2.5
Voltage (Vo1)
Voltage (Vo1)
Vin Min
Vin Nom
Vin Max
2.5
2.0
1.5
1.0
0.5
0.0
0
2
3
5
6
8
9
11
12
14
15
2.0
1.5
1.0
Vin Min
Vin Nom
0.5
Vin Max
0.0
0
3
6
9
12
Load (A)
Load (A)
Oct 10, 2002
Rev 0.96
www.power-one.com
Page 3 of 14
15
HNT Series: 100W DC/DC Converter
36-75V Input
Triple output: 3.3V / 2.5V / 1.8V (outputs can be trimmed from 0.75V to 5.15V)
Output Specifications
Product Datasheet
Oct 2002
All specifications apply over input voltage, output load, and temperature range, unless otherwise noted.
HNT45ZEDB: Vo2 (2.5V)
Parameter
Output Voltage
Setpoint Accuracy
Output Current
Line Regulation
Load Regulation
Dynamic Regulation
Peak Deviation
Settling Time
Output Voltage Ripple
3
Admissible Load
Capacitance
Output Current Limit
Threshold
Temperature
Coefficient
Trim Range
1
2
Vo2
Io2
Conditions/Description
Vin.Nom, Io = 8.0, 25°C
Vin.Min to Vin.Max
Vin.Min to Vin.Max, 50%
Io.Max
Vin.Nom, Io.Min to Io.Max
25-75% 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
Vo1, Io1nom, Vo3, Io3max
Io.Min to Io.Max, Vin.Nom to
Vin.Max
Min
2.47
1.5
Nom
2.5
8.0
10
15
Max
2.53
15
1
20
40
250
300
120
6,800
Units
Vdc
Adc
mV
mV
± mV
µs
mVp-p
µF
%Io.Max
%Vo/°C
Vdc
Vr
Comax
Icl
Tco
Vt
75
110
125
150
0.02
1.1
2
5.15
2
If output is trimmed to maximum voltage, max current is reduced linearly to 8A
Optimum trim range from 1.4V to 3.4V
3
Measured with 1µF ceramic capacitor across output pins
HNT45ZEDB - Output 2 - Characteristic curves
Output Voltage Vs Load
3.0
3.0
Cross Reg Versus Load
2.5
2.5
Voltage (Vo2)
2.0
1.5
Voltage (Vo2)
2.0
1.5
1.0
Vin Min
Vin Nom
Vin Max
1.0
0.5
Vin Min
Vin Nom
Vin Max
0.5
0.0
11
12
14
15
0
2
3
5
6
8
9
0.0
0
3
6
9
12
Load (A)
Load (A)
Oct 10, 2002
Rev 0.96
www.power-one.com
Page 4 of 14
15
HNT Series: 100W DC/DC Converter
36-75V Input
Triple output: 3.3V / 2.5V / 1.8V (outputs can be trimmed from 0.75V to 5.15V)
Output Specifications
Product Datasheet
Oct 2002
All specifications apply over input voltage, output load, and temperature range, unless otherwise noted.
HNT45ZEDB: Vo3 (1.8V)
Parameter
Output Voltage
Setpoint Accuracy
Output Current
Line Regulation
Load Regulation
Dynamic Regulation
Peak Deviation
Settling Time
Output Voltage Ripple
2
Admissible Load
Capacitance
Output Current Limit
Threshold
Temperature
Coefficient
Trim Range
1
2
Vo3
Io3
Conditions/Description
Vin.Nom, Io = 8.0, 25°C
Vin.Min to Vin.Max
Vin.Min to Vin.Max, 50%
Io.Max
Vin.Nom, Io.Min to Io.Max
25-75% 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
Vo1, Io1nom, Vo2, Io2nom
Io.Min to Io.Max, Vin.Min to
Vin.Max
Min
1.77
1.5
Nom
1.8
8.0
7
10
Max
1.83
15
15
30
250
300
120
4,700
Units
Vdc
Adc
mV
mV
± mV
µs
mVp-p
µF
%Io.Max
%Vo/°C
Vdc
Vr
Comax
Icl
Tco
Vt
75
110
135
150
0.02
0.75
3.4
1
Optimum Trim range 0.75 to 2.6V
Measured with 1µF ceramic capacitor across output pins
HNT45ZEDB - Output 3 - Characteristic curves
Output Voltage Vs Load
2.0
1.8
1.6
1.4
Cross Reg Versus Load
2.0
1.8
1.6
1.4
Voltage (Vo3)
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
2
3
5
6
8
9
11
12
14
15
Vin Min
Vin Nom
Vin Max
Voltage (Vo3)
1.2
1.0
0.8
Vin Min
0.6
0.4
0.2
0.0
0
3
Vin Nom
Vin Max
6
9
12
Load (A)
Load (A)
Oct 10, 2002
Rev 0.96
www.power-one.com
15
Page 5 of 14
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