HLD15 Series DC-DC Converter Data Sheet
48 VDC Input, 15/15 Amp Dual Half-Brick Converter
Features
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Description
The HLD Series are through-hole mount,
Half-brick, Low
profile,
Dual
output dc-dc high density converters. The
HLD Series provides onboard conversion of telecom and datacom input voltages to isolated low output voltages
without the need for a heat sink. The HLD Series is well suited for distributed power architectures, telecom
equipment, and LAN/WAN and data processing applications.
Model Selection
MODEL
Input
Voltage
(VDC)
48
48
48
48
Input
Voltage
Range
(VDC)
36-72
36-72
36-72
36-72
Maximum
Input Current
2
(Amps)
2.1
2.1
2.1
2.1
Output
Voltage
(VDC)
5.0/3.3
5.0/1.8
3.3/2.5
3.3/1.8
Rated
Ripple &
Output Current Noise
3
pk-pk
(Amps)
(mV)
12/15
100/100
12/15
15/15
15/15
100/100
100/100
100/100
Typical
4
Efficiency
in %
86
85
83
83
Applications
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•
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Distributed power architectures
Telecommunications equipment
LAN/WAN
Data processing
Standard configurations are RoHS compliant
with Pb solder exemption
1
Single-board, multi-layer design
Planar magnetics
Start-up into high capacitive load
Low profile– 0.5"
Standard half-brick size and pinout
60 Watt total output power
Independently-regulated outputs
Flexible load distribution
Output voltage tracking
Output overcurrent & overvoltage protection
Overtemperature protection
Set point accuracy ±1.5%
Independent output voltage trim
1500 VDC Input/output isolation:, Basic
insulation
UL 1950 Recognition, CSA 22.2 No. 950-95
certification, TUV IEC950
HLD15ZGE
HLD15ZGB
HLD15ZED
HLD15ZEB
Model numbers highlighted in yellow or shaded are not recommended for new designs.
NOTES:
The solder exemption is for customers choosing to use the exemptions for lead in solders for servers, storage and storage array
systems, and network infrastructure equipment for switching, signaling, transmission, and network management for telecommunications.
2
1
Maximum input current at minimum input voltage, maximum rated output power.
Current can be drawn from any single output to its maximum rated value, or from both outputs to a combined power level of 60W.
At nominal V in , rated output.
3
4
* -G overcurrent protection is latched; all other models hiccup.
* This product is intended for integration into end-use equipment. All required procedures for CE marking of end-use equipment should be
followed.
REV. FEB 16, 2006
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HLD15 Series DC-DC Converter Data Sheet
48 VDC Input, 15/15 Amp Dual Half-Brick Converter
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings may cause performance degradation, adversely effect long-
term reliability, and cause permanent damage to the converter.
Parameter
Input voltage
Operating Temperature
Storage Temperature
ON/OFF Control Voltage
Referenced to -Vin
Conditions/Description
Continuos
Transient, 100 ms
Ambient
Min
Max
75
100
100
125
13.5
Units
VDC
VDC
°C
°C
VDC
-40
-40
-1
Environmental, Mechanical & Reliability Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Maximum PCB Operating Temp.
Operating Humidity
Storage Humidity
Shock
Sinusoidal Vibration
Weight
Water Washing
MTBF
Conditions/Description
Relative humidity, non-condensing
Relative humidity, non-condensing
Halfsine wave, 6ms, 3 axes
GR-63-Core, Section 5.4.2
Standard process
Per Bellcore TR-NWT-000332
Min
Nom
Max
100
95
95
Units
°C
%
%
g
Oz/g
kHrs
50
1
1.7/59
Yes
1,100
Isolation Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Insulation Safety Rating
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Conditions/Description
Input/Output
Input/Output
Input/Output
Min
1500
10
1000
Nom
Basic
Max
Units
VDC
MΩ
pF
REV. FEB 16, 2006
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HLD15 Series DC-DC Converter Data Sheet
48 VDC Input, 15/15 Amp Dual Half-Brick Converter
Input Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Input Voltage
Turn-On Input Voltage
Turn-Off Input Voltage
Turn-On Time
Input Reflected Ripple Current
Input Inrush Current Limit
Conditions/Description
Continuous
Ramping Up
Ramping Down
To Output Regulation Band
100% Resistive Load
Full Load, 12 µH source inductance
Vin = Vin.max
Min
36
30
28
Nom
48
34
30
20
80
1
Max
72
36
35
Units
VDC
VDC
VDC
ms
mA p-p
A
2
s
Output Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Output Voltage Setpoint Accuracy
Output Current*
Vout1
Vout2
Line Regulation
Vout1
Vout2
Load Regulation,
Vout1
Vout2
Output Temperature Regulation
Conditions/Description
Vin = Vin.nom, Full Load
For MAX rated see Table
Vin.min to Vin.max, Iout.max
Vin = Vnom, Iout.min to
Iout.max
(Tboad temp)=-40°C to +100°C)
50-75% load step change
to 1% error band
(di/d t= 1A/μs)
Min
-1.5
0.5
0
Nom
Max
+1.5
0.2
1
0.5
1.0
-
0.03
Units
%Vout
ADC
ADC
%Vout
%Vout
%Vout
%Vout
%/°C
Dynamic Regulation
Vout1
Peak Deviation
Settling Time
Admissible Load Capacitance
Output Current Limit Threshold**
Switching Frequency
Overvoltage Protection,
Non Latching
(hiccup type)
Trim Range
(Vout1 and Vout2)
4
500
5,000
110
300
115
90
160
140
110
%Vout
μs
μF
%Iout
kHz
%Vout
%Vout
Iout.max, Nom Vin
Vout≤0.97Vout.nom
Over all input voltage and
load conditions
Iout.max, Vin = Vnom
* At Iout<Iout.min, the output may contain low frequency component that exceeds ripple specifications.
** Overcurrent protection is non-latching with auto recovery.
REV. FEB 16, 2006
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HLD15 Series DC-DC Converter Data Sheet
48 VDC Input, 15/15 Amp Dual Half-Brick Converter
Feature Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Negative Logic (-N)
Converter ON
Source Current
Converter OFF
Open Circuit Voltage
Positive Logic
Converter ON
Open Circuit Voltage
Converter OFF
Source Current
Trim Up
Trim Down
Conditions/Description
Min
Nom
Max
Units
ON/OFF
ON/OFF signal is low or the pin is
connected to -Vin – converter is ON
Von/off in reference to -Vin
ON/OFF pin is connected to -Vin
Von/off in reference to -Vin
ON/OFF pin is floating
On/Off signal is low or the pin is floating
–converter is OFF
Von/off in reference to -Vin
ON/OFF pin is floating
Von/off in reference to -Vin
ON/OFF pin is connected to -Vin
Output Voltage Trim
Vin = Vin.nom, Iout = I
rated
Vin = Vin.nom, Iout = I
rated
Overtemperature Protection
PCB Temperature
Type,
Auto-reset (standard model)
Latching (G p/n suffix)
1
1
2
2
-1.0
0.5
3.5
1.8
1
13.5
5
VDC
mADC
VDC
VDC
3.5
-1.0
0.5
13.5
5
1.8
1
10
VDC
VDC
VDC
mADC
%Vout
%Vout
-10
105
110
120
°C
Auto-reset upon cooling
Recycle input voltage or
ON/OFF signal to reset
Consult factory
Vout1 & Vout2
REV. FEB 16, 2006
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HLD15 Series DC-DC Converter Data Sheet
48 VDC Input, 15/15 Amp Dual Half-Brick Converter
Characteristic Curves
92
88
84
80
76
72
68
64
60
56
52
10
20
30
40
50 60
LOAD %
70
90
85
80
75
70
65
60
55
50
45
40
10
20
30
40
50 60 70
LOAD %
EFFICIENCY %
EFF.(36V)
EFF.(48V)
EFF.(72V)
EFFICIENCY %
EFF.(36V)
EFF.(48V)
EFF.(72V)
80
90 100
80
90 100
Figure 1. HLD15ZGE Efficiency vs. Output Load
Figure 3. HLD15ZGB Efficiency vs. Output Load
88
84
80
76
72
68
64
60
56
52
10 20
30 40 50 60
LOAD %
90
85
80
75
70
65
60
55
50
45
40
10
20
30
40
50 60
LOAD %
70
80
90 100
EFF.(36V
)
EFF.(48V
)
EFF.(72V
)
EFFICIENCY %
EFF.(36V)
EFF.(48V)
EFF.(72V)
70 80
90 100
Figure 2. HLD15ZED Efficiency vs. Output Load
EFFICIENCY %
Figure 4. HLD15ZEB Efficiency vs. Output Load
REV. FEB 16, 2006
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