QLS08ZH8 [BEL]
DC-DC Regulated Power Supply Module, 1 Output, 100W, Hybrid, QUARTER BRICK PACKAGE-8;
| 型号： | QLS08ZH8 |
| 厂家： | 
BEL FUSE INC. |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, 100W, Hybrid, QUARTER BRICK PACKAGE-8 |
| 文件： | 总7页 (文件大小：164K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
QLS08ZH Data Sheet
100W Quarter-Brick Converter
Features
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RoHS lead solder exemption compliant
Cost-effective, single board design
Low profile – 11mm height
Input/output isolation: 1500VDC, Basic
insulation
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•
•
•
•
•
•
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High efficiency - 90% at full load
Start-up into high capacitive load
Low conducted and radiated EMI
Output overcurrent protection
Output overvoltage protection
Back drive protection
Applications
Overtemperature protection
Remote sense
•
•
•
•
Distributed power architectures
Telecommunications equipment
LAN/WAN
Set point accuracy ±1%
Remote on/off (primary referenced), positive
or negative logic
Data processing
•
•
Output voltage trim adjust ±10%
UL 1950 Recognition, CSA 22.2 No. 950-95
certification, TUV IEC950
Description
The QLS08ZH is a new high-density, single-output dc-dc converter providing onboard conversion of standard
telecom and datacom input voltages into isolated low voltage outputs in a through-hole mounting package. High
efficiencies and a patent-pending board design significantly improve thermal characteristics by evening out hot
spots and enhance product reliability.
Selection
Model
Input
Voltage
VDC
Input
Current, Max
ADC
Output
Voltage
Vout,
Output Rated
Current
I rated,
Output
Ripple/Noise,
mV p-p
Typical
Efficiency @
I rated,
%
VDC
ADC
QLS08ZH
36-75
4.8
12.0
8
150
90
NOTE: This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use
equipment should be followed.
Model numbers highlighted in yellow or shaded are not recommended for new designs.
MCD10050 Rev. 1.0
Page 1 of 7
www.power-one.com
QLS08ZH Data Sheet
100W Quarter-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
Conditions/Description
Continuous
Min
Max
75
Units
VDC
VDC
°C
Input voltage
Transient, 100ms
100
110
125
50
Operating Temperature
Storage Temperature
ON/OFF Control Voltage
PC Board Temperature
-40
-40
°C
VDC
Referenced to -Vin
Environmental and Mechanical Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Shock
Conditions/Description
Halfsine wave, 3 axes
Min
50
1
Nom
Max
Units
g
Sinusoidal Vibration
Weight
GR-63-Core, Section 5.4.2
g
1.2/35
Yes
Oz/g
Water Washing
MTBF
Standard process
Per Bellcore TR-NWT-000332
1,980
kHrs
Isolation Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Conditions/Description
Min
Nom
Max
Units
Insulation Safety Rating
Isolation Voltage
Basic
1500
10
VDC
MOhm
pF
Isolation Resistance
Isolation Capacitance
1100
Input Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Input Voltage
Conditions/Description
Continuous
Min
Nom
48
Max
Units
VDC
VDC
VDC
ms
36
75
Turn-On Input Voltage
Turn-Off Input Voltage
Turn-On Time
Ramping Up
33
Ramping Down
32
To Output Regulation Band
100% Resistive Load
Full Load, 12µH source inductance
5
10
60
Input Reflected Ripple
Current
mA p-p
A2s
Inrush Transient
Vin=Vin.max
0.1
MCD10050 Rev. 1.0
Page 2 of 7
www.power-one.com
QLS08ZH Data Sheet
100W Quarter-Brick Converter
Output Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Output Voltage Setpoint Accuracy
Output Current*
Conditions/Description
Vin=Vin.nom, Full Load
Min
-1
Nom
Max
1
Units
%Vout
%Irated
%Vout
%Vout
%Vout
See selection chart for Irated
Vin.min to Vin.max, Irated
0
100
0.2
0.2
2
Line Regulation
Load Regulation
Vin=Vin.nom, 10% to 100%Irated
Total output voltage regulation
Over all input voltage, load, and
temperature conditions
-2
Remote Sense Headroom
Dynamic Regulation
Peak Deviation
10
%Vout
50-75% load step change
5
%Vout
μs
Settling Time
to 1% error band
Irated, Nom Vin
150
Admissible Load Capacitance
Output Current Limit Threshold**
Switching Frequency
Overvoltage Protection,
Non Latching
20,000
110
μF
%Irated
kHz
Vout≤0.97Vout.nom
140
140
110
270
Over all input voltage and load
conditions
120
90
%Vout
Trim Range
Irated, Vin=Vnom
%Vout
* At Iout<10% Iout, the output may contain low frequency component that exceeds ripple specifications.
** Overcurrent protection is non-latching with auto recovery.
Feature Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Shutdown (ON/OFF)
Negative Logic
Conditions/Description
On/Off signal is low – converter is ON
ON/OFF pin is connected to -Vin
Min
Nom
Max
Units
Converter ON
-1.0
3.5
1.8
1
VDC
mADC
VDC
Source Current
Converter OFF
50
5
Open Circuit Voltage
Positive Logic
ON/OFF pin is floating
VDC
On/Off signal is low–converter is OFF
Converter ON
3.5
50
5
VDC
VDC
VDC
mADC
°C
Open Circuit Voltage
Converter OFF
ON/OFF pin is floating
-1.0
1.8
1
Source Current
ON/OFF pin is connected to -Vin
Average board temperature
Overtemperature Protection
105
MCD10050 Rev. 1.0
Page 3 of 7
www.power-one.com
QLS08ZH Data Sheet
100W Quarter-Brick Converter
The QLS08ZH converter does not require any
external components for proper operation. However,
if the distribution of the input voltage to the converter
contains significant inductance, the capacitor C1
may be required to enhance performance of the
Characteristic Curves
95
90
85
80
75
70
65
60
55
50
converter.
A minimum of a 33μF electrolytic
capacitor with the ESR<0.7Ω is recommended for
the QLS08ZH.
Refer to the “Inrush Current Control Application
Note” on www.power-one.com for suggestions on
how to limit the magnitude of the inrush current.
EFF.(36V)
EFF.(48V)
EFF.(75V)
For output decoupling we recommend using a 10μF
tantalum and a 1μF ceramic capacitors connected
directly across the output pins of the converter.
Note, that the capacitors do not substitute the
filtering required by the load.
10 20 30 40 50 60 70 80 90 100
LOAD %
Figure 1. QLS08ZH Efficiency vs. Output Load
Shutdown Feature Description
The ON/OFF pin in the QLS08ZH converter
functions as a normal soft shutdown. It is referenced
to the –Vin pin (see Figure 7). With the positive
logic, when the ON/OFF pin is pulled low, the output
is turned off and the unit goes into a very low input
power mode.
3.5
3
2.5
2
1.5
1
With negative logic, when the ON/OFF pin is pulled
low, the unit is turned on.
0.5
0
An open collector switch is recommended to control
the voltage between the ON/OFF pin and the -Vin
pin of the converter. The ON/OFF pin is pulled up
internally, so no external voltage source is required.
The user should avoid connecting a resistor between
the ON/OFF pin and the +Vin pin.
0
10
20
30
40
50
60
70
Input Voltage (V)
Figure 2. QLS08ZH Input Characteristics
When the ON/OFF pin is used to achieve remote
control, the user must take care to insure that the pin
reference for the control is really the -Vin pin. The
control signal must not be referenced ahead of EMI
filtering, or remotely from the unit. Optically coupling
the information and locating the optical coupler
directly at the module will solve any of these
problems.
Typical Application
Figure 3 shows the recommended connections for
the QLS08ZH converter.
NOTE:
If the ON/OFF pin is not used, it can be left floating (positive logic),
or connected to the -Vin pin (negative logic).
Figure 3. Typical Application of QLS08ZH
MCD10050 Rev. 1.0
Page 4 of 7
www.power-one.com
QLS08ZH Data Sheet
100W Quarter-Brick Converter
3. The QLS08ZH converter will trim down further than the
10% limit. In general, this is permissible. The user
must confirm that the results are acceptable in the
application.
Output Voltage Trim
The trim feature allows the user to adjust the output
voltage from the nominal. This can be used to
accommodate a different requirement or to do
production margin testing.
Safety Considerations
The QLS08ZH converter features 1500 Volt DC
isolation from input to output. The input-to-output
resistance is greater than 10MOhm. This converter
is provided with Basic insulation between input and
output circuits according to all IEC60950 based
standards. Nevertheless, if the system using the
converter needs to receive safety agency approval,
certain rules must be followed in the design of the
system. In particular, all of the creepage and
clearance requirements of the end-use safety
requirements must be observed. These documents
include UL60950 - CSA60950-00 and EN60950,
although other or additional requirements may be
needed for specific applications.
Industry Standard Trim
The converters trim up with a resistor from the TRIM
pin to the +Sense pin and trim down with a resistor
from the TRIM pin to the –Sense pin as shown in
Figure 4.
The QLS08ZH converter has no internal fuse. The
external fuse must be provided to protect the system
from catastrophic failure as shown in Figure 3. The
fuse with
a
rating not greater than 6A is
recommended. The user can select a lower rating
fuse based upon the highest inrush transient at the
maximum input voltage and the maximum input
current of the converter, which occurs at the
minimum input voltage. Both input traces and the
chassis ground trace (if applicable) must be capable
of conducting a current of 1.5 times the value of the
fuse without opening. The fuse must not be placed
in the grounded input line, if any.
Figure 4. QLS08ZH Positive Trim Schematic
The equations below determine the trim resistor
value required to achieve a ΔV change in the output
voltage.
In order for the output of the QLS08ZH converter to
be considered as SELV (Safety Extra Low Voltage)
or TNV-1, according to all IEC60950 based
standards, one of the following requirements must be
met in the system design:
Vout(100+ΔV%) 100+2ΔV%
⎛
⎝
⎞
⎟
R = 5.11
−
,kΩ
⎜
UP
1.225ΔV%
ΔV%
⎠
100
⎛
⎝
⎞
⎠
RDOWN = 5.11
− 2 , kΩ
•
•
If the voltage source feeding the module is SELV
or TNV-2, the output of the converter may be
grounded or ungrounded.
If the voltage source feeding the module is ELV,
the output of the converter may be considered
SELV only if the output is grounded per the
requirements of the standard.
If the voltage source feeding the module is a
Hazardous Voltage Secondary Circuit, the
voltage source feeding the module must be
provided with at least Basic insulation between
the source to the converter and any hazardous
⎜
⎟
ΔV %
Where ΔV% is the output voltage change expressed
in percents of the nominal output voltage, Vout.
NOTES:
1. When the output voltage is trimmed up, the output
power from the converter must not exceed its maximum
rating. The power is determined by measuring the
output voltage on the output pins, and multiplying it by
the output current.
•
2. In order to avoid creating apparent load regulation
degradation, it is important that the trim resistors are
connected directly to the remote sense pins, and not to
the load or to traces going to the load.
voltages.
The entire system, including the
QLS08ZH converter, must pass a dielectric
withstand test for Reinforced insulation. Design
MCD10050 Rev. 1.0
Page 5 of 7
www.power-one.com
QLS08ZH Data Sheet
100W Quarter-Brick Converter
of this type of systems requires expert
engineering and understanding of the overall
safety requirements and should be performed by
qualified personnel.
The graph in Figure 5 shows the maximum output
current of the QLS08ZH converter at different
ambient temperatures under both natural and forced
(longitudinal airflow direction, from pin 1 to pin 3)
convection.
Thermal Considerations
The QLS08ZH converter is designed for natural or
forced convection cooling. The maximum allowable
output current of the converter is determined by
meeting the derating criteria for all components used
For example, the QLS08ZH operating at 50°C can
deliver up to 6.5A reliably with 200LFM forced air.
in the converter.
For example, the maximum
semiconductor junction temperature is not allowed to
exceed 120°C to ensure reliable long-term operation
of the converter.
Contact Power-One for the
complete list of the derating criteria.
QLS08ZH DERATING CURVE
9.5
8.5
7.5
6.5
5.5
0LFM
4.5
30LFM
3.5
100LFM
2.5
200LFM
1.5
300LFM
0.5
400LFM
0
5
25
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (ºC)
Figure 5. Derating Curves
MCD10050 Rev. 1.0
Page 6 of 7
www.power-one.com
QLS08ZH Data Sheet
100W Quarter-Brick Converter
Mechanical Drawing
Pin
Function
1
-Vin
2
3
4
5
6
7
8
On/Off
+Vin
-Vout
-Sense
Trim
+Sense
+Vout
Tolerances: .xx + .020 (.5)
.xxx + .010 (.25)
+ 0.002 (.05)
Pin Diameter
Ordering Information
Options
Remote ON/OFF
Suffixes to add to part number
Positive- Standard, no suffix required
Negative- Add “NT” suffix
Pin Length
0.18”- Standard, no suffix required
0.145”- Add “7” suffix
0.110”- Add “8” suffix
Notes:
1. Consult factory for the complete list of available options.
NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical
components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written
consent of the respective divisional president of Power-One, Inc.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on
the date manufactured. Specifications are subject to change without notice.
MCD10050 Rev. 1.0
Page 7 of 7
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