HLS Series DC-DC Converter Data Sheet
48VDC Input, 30 & 40 Amp Half-Bricks
Features
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Low profile, (-11mm) single-board design
Input-to-output isolation: 1500VDC, basic
insulation
High efficiency - to 91% at full load
Start-up into high capacitive load
Low conducted and radiated EMI
Output overcurrent protection
Output overvoltage protection
Overtemperature protection
Remote sense
Set point accuracy
±1%
Remote on/off (primary referenced), positive
or negative logic
Output voltage trim adjust, positive or
negative
UL1950 recognized, CSA 22.2 No. 950-95
certified, TUV IEC950
Applications
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Distributed power architectures
Telecommunications equipment
LAN/WAN
Data processing
Description
The HLS Series of high density, single-output dc-dc converters, convert standard telecom and datacom voltages
into isolated low-voltage outputs. High efficiencies and a unique copper-core printed circuit board design create
superior thermal characteristics that enhance product reliability and eliminate the need for a heat sink.
Model Selection
Model
HLS30ZG
HLS30ZE
HLS30ZD
HLS40ZB
HLS40ZA
Input
Voltage
VDC
36-75
36-75
36-75
36-75
36-75
Input
Current,
Max ADC
4.8
3.3
2.5
3.0
2.5
Output
Voltage
VDC
5.0
3.3
2.5
1.8
1.5
Output rated
current I
rated
ADC
30
30
30
40
40
Output
Ripple/Noise,
mV p-p
100
100
100
100
100
Typical
Efficiency @
I
rated
%
91
89
88
88
87
This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use equipment
should be followed.
REV. OCT 05, 2004
Page 1 of 10
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HLS Series DC-DC Converter Data Sheet
48VDC Input, 30 & 40 Amp Half-Bricks
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
Conditions/Description
Continuous
Transient, 100ms
Ambient
Referenced to -Vin
Min
Max
75
100
100
125
50
Units
VDC
VDC
°C
°C
VDC
-40
-40
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 (HLS30)
(HLS40)
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
Per Bellcore TR-NWT-000332
Min
Nom
Max
100
95
95
Units
°C
%
%
g
Oz/g
kHrs
kHrs
50
1
1.4/40
Yes
1,780
1,500
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
1800
Nom
Basic
Max
Units
VDC
MΩ
pF
REV. OCT 05, 2004
Page 2 of 10
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HLS Series DC-DC Converter Data Sheet
48VDC Input, 30 & 40 Amp Half-Bricks
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
Inrush Transient
Conditions/Description
Continuous
Ramping Up
Ramping Down
To Output Regulation Band
100% Resistive Load
Full Load, 12µH source inductance
Vin=Vin.max
Min
36
32
31
Nom
48
-
-
5
Max
75
35
33
10
80
0.1
Units
VDC
VDC
VDC
ms
mA p-p
2
As
Output Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Output Voltage Setpoint Accuracy
Output Current *
Line Regulation
Conditions/Description
Vin=Vin.nom, Full Load
HLS30
HLS40
Vin.min to Vin.max, Iout.max
HLS30
HLS40
Vin=Vnom, Iout.min to Iout.max
HLS30
HLS40
(Tboad temp) =-40°C to +100°C)
Note: ***
50-75% load step change
to 1% error band
Iout.max, Nom Vin
Vout≤0.97Vout.nom
HLS30ZD
HLS30ZG & HLS30ZE
HLS40ZA & HLS40ZB
Over all input voltage and load
conditions
Iout.max, Vin=Vnom
Min
-1
3
4
Nom
Max
1
30
40
0.25
0.5
0.2
0.5
0.03
10
8
500
110
210
300
250
115
90
140
110
30,000
140
Units
%Vout
ADC
ADC
%Vout
%Vout
%Vout
%Vout
%/°C
%Vout
%Vout
µs
µF
%Iout
kHz
kHz
kHz
%Vout
%Vout
Load Regulation
Output Temperature Regulation
Remote Sense Headroom
Dynamic Regulation
Peak Deviation
Settling Time
Admissible Load Capacitance
Output Current Limit Threshold **
Switching Frequency
-
Overvoltage Protection,
Non Latching (hiccup type)
Trim Range
* At Iout<Iout.min, the output may contain low frequency component that exceeds ripple specifications.
** Overcurrent protection is non-latching (hiccup type) with auto recovery.
*** Vout can be increased up to 10% via the sense leads or up to 10% via the trim function, however total output voltage trim from all
sources should not exceed 10% of Vout
REV. OCT 05, 2004
Page 3 of 10
www.power-one.com
HLS Series DC-DC Converter Data Sheet
48VDC Input, 30 & 40 Amp Half-Bricks
Feature Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Negative Logic (-N suffix)
On/Off (pin #3)
(Primary side ref. to -Vin)
Positive Logic (-P suffix)
On/Off (pin #3)
(Primary side ref. to -Vin)
Conditions/Description
On/Off
(On/Off signal is low – converter is ON)
Converter ON
Sink current
Converter OFF
Open circuit voltage
(On/Off signal is low – converter is OFF)
Min
Nom
Max
Units
-1.0
3.5
2
1.8
1
50
VDC
mADC
VDC
VDC
VDC
VDC
VDC
mADC
Type
Threshold
Auto recovery
3.5
Converter ON
Open Circuit Voltage
Converter OFF
-1.0
Sink Current
Over Temperature Protection
Non-latching, auto-recovery
Average PCB temperature
100
50
3
1.8
1
120
90
°C
°C
REV. OCT 05, 2004
Page 4 of 10
www.power-one.com
HLS Series DC-DC Converter Data Sheet
48VDC Input, 30 & 40 Amp Half-Bricks
Characteristic Curves:
95
90
Efficiency, %
85
80
75
70
36V
48V
75V
65
60
55
4
8
12
16
20
24
28
32
36
40
Output Current, A
Figure 1. HLS30ZG (5V) Efficiency vs. Output Load
Figure 4. HLS40ZA (1.5V) Efficiency vs. Output Load
95
90
85
Efficiency, %
80
75
70
36V
48V
75V
65
60
55
4
8
12
16
20
24
28
32
36
40
Output Current, A
Figure 2. HLS30ZE (3.3V) Efficiency vs. Output Load
Figure 5. HLS40ZB (1.8V) Efficiency vs. Output Load
Figure 3. HLS30ZD (2.5V) Efficiency vs. Output Load
REV. OCT 05, 2004
Page 5 of 10
www.power-one.com
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