QLS30ZA-N [BEL]
DC-DC Regulated Power Supply Module, 1 Output, Hybrid, QUARTER BRICK PACKAGE-8;
| 型号： | QLS30ZA-N |
| 厂家： | 
BEL FUSE INC. |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, Hybrid, QUARTER BRICK PACKAGE-8 |
| 文件： | 总9页 (文件大小：218K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
QLS30 DC-DC Series Data Sheet
30A Quarter-Brick Converter
Features
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RoHS lead solder exemption compliant
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Cost-effective single board design
Low profile – 11 mm height
Input/output isolation: 1500VDC, Basic insulation
High efficiency
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Output back-drive protection
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
Applications
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Distributed power architectures
Telecommunications equipment
LAN/WAN
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Output voltage trim adjust, positive or negative
UL1950 recognition, CSA 22.2 No. 950-95
certification, TUV IEC950
Data processing
Description
The QLS30 Series of single output DC-DC converters features single board, multi-layer construction and an SMT
design that is highly reliable due to the low component count and minimal manufacturing touch time. The QLS30
Series uses fewer components than any other equivalently rated single board converter. The converters can
deliver a maximum of 30 amps with a typical efficiency of 85%. The QLS provides superior thermal performance,
with minimal derating, and can deliver 22.8 amperes at 1.8 volt output in ambient conditions of 65°C and 200 LFM.
This full-featured, low-profile converter offers input undervoltage lockout, plus overload, overvoltage, and
overtemperature protection. Interface features include remote on/off, remote sense, and output voltage trim.
Model Selection
Model
Input
Voltage
VDC
Input
Current, Max
ADC
Output
Voltage
Vout, VDC
Output Rated
Current
I rated, ADC
Output
Ripple/Noise,
mV p-p
Typical
Efficiency @
I rated,
%
QLS30ZB
QLS30ZA
QLS30ZY
36-75
36-75
36-75
1.5
1.3
1.1
1.8
1.5
1.2
30
30
30
100
100
100
86
85
84
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.
MCD10053 Rev. 1.0
Page 1 of 9
www.power-one.com
QLS30 DC-DC Series Data Sheet
30A 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
At 100% load
100
100
125
50
Operating Temperature
Storage Temperature
ON/OFF Control Voltage
-40
-40
°C
Referenced to -Vin
VDC
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.A.2
1.2/35
Yes
Oz/g
kHrs
Water Washing
MTBF
Standard process
Per Bellcore TR-NWT-000332
1,980
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
1800
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
5
To Output Regulation Band
100% Resistive Load
Full Load, 12µH source inductance
10
50
Input Reflected Ripple Current
Inrush Transient
mA p-p
A2s
Vin=Vin.max
0.1
MCD10053 Rev. 1.0
Page 2 of 9
www.power-one.com
QLS30 DC-DC Series Data Sheet
30A Quarter-Brick Converter
Output Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Conditions/Description
Min
Nom
Max
Units
Output Voltage Setpoint Accuracy
Vin=Vin.nom, Full Load
-1
1
%Vout
Output Current*
Line Regulation
See selection chart for Irated
Vin.min to Vin.max, Irated
10
100
0.2
0.2
2
%Irated
%Vout
%Vout
%Vout
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
0.5
VDC
50-75% load step change
to 1% error band
6
%Vout
μs
Settling Time
500
Admissible Load Capacitance
Output Current Limit Threshold**
Switching Frequency
Overvoltage Protection,
Non Latching
Irated, Nom Vin
20,000
110
μF
Vout=0.97Vout.nom
140
140
110
%Irated
kHz
300
Overall input voltage and
load conditions
120
90
%Vout
Trim Range
Irated, Vin=Vnom
%Vout
* At Iout<Iout.min, the output may contain low frequency component that exceeds ripple specifications.
** Overcurrent protection is non-latching with auto recovery.
MCD10053 Rev. 1.0
Page 3 of 9
www.power-one.com
QLS30 DC-DC Series Data Sheet
30A Quarter-Brick Converter
Feature Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Conditions/Description
Min
Nom
Max
Units
Shutdown (ON/OFF)
Negative Logic
Converter ON
On/Off signal is low – converter is ON
-1.0
3.5
1.8
150
5
VDC
mADC
VDC
Source Current
Converter OFF
Open Circuit Voltage
Positive Logic
ON/OFF pin is connected to -Vin
2.1
ON/OFF pin is floating
VDC
On/Off signal is low –converter is OFF
2.5
2.0
50
5
Converter ON
3.5
VDC
VDC
VDC
Open Circuit Voltage
Converter OFF
Source Current
ON/OFF pin is floating
1.8
1
-1.0
ON/OFF pin is connected to -Vin
Average Board Temperature
mADC
°C
Overtemperature
Protection
105
Characteristic Curves
90
95
90
85
80
75
70
65
60
55
50
85
80
75
70
65
60
55
50
36V
48V
75V
36V
48V
75V
0
3
6
9
12 15 18 21 24 27 30
0
3
6
9
12 15 18 21 24 27 30
Output current, A
Output current, A
Figure 2. QLS30ZA Efficiency vs. Output Load
Figure 1. QLS30ZB Efficiency vs. Output Load
MCD10053 Rev. 1.0
Page 4 of 9
www.power-one.com
QLS30 DC-DC Series Data Sheet
30A Quarter-Brick Converter
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
10
20
30
40
50
60
70
Input voltage, VDC
Figure 6. QLS30ZY Input Characteristic
Figure 3. QLS30ZY Efficiency vs. Output Load
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
10
20
30
40
50
60
70
Input Voltage, VDC
Figure 4. QLS30ZB Input Characteristic
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
10
20
30
40
50
60
70
Input voltage, VDC
Figure 5. QLS30ZA Input Characteristic
MCD10053 Rev. 1.0
Page 5 of 9
www.power-one.com
QLS30 DC-DC Series Data Sheet
30A Quarter-Brick 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).
Output Voltage Trim
Typical Application
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. There are two variances available in the
QLS30 Series.
Figure 7 shows the recommended connections for the
QLS30 Series converter.
QLS30ZX
Fuse
+Vo
+Vi
Negative Trim (No suffix)
+Sense
The QLS30 negative trim units 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
Fig.8.
C1
C2 C3
Trim
On/Off
-Vi
-Sense
-Vo
The negative trim schematic is shown in Figure 8.
Figure 7. Typical Application of QLS30 Series
The QLS30 Series converters do 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 converter. A minimum of a
33μF electrolytic capacitor with the ESR<0.7Ω is
recommended for the QLS30 Series.
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.
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.
Figure 8. QLS30 Series Negative Trim Schematic
The general equation (1) for changing the output voltage
on the negative trim modules is invariant, but the constants
in the equation change due to different internal values.
Shutdown Feature Description
The ON/OFF pin in the QLS30 Series converters functions
as a normal soft shutdown. It is referenced to the –Vin pin
(see Figure 7). With 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.
A− B×ΔV
kΩ
(1)
RTRIM
=
,
ΔV
where A and B are constants from the table below, and ΔV
is the absolute value of the desired change in the output
voltage in Volts.
With negative logic, when the ON/OFF pin is pulled low,
the unit is turned on. 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.
Model
Trim Up
Trim Down
A
B
1
A
B
QLS30ZB
QLS30ZA
QLS30ZY
0.57
0.283
0.5928
0.2711
0.065
1.4676
0.352
3.96
0.121
3.01
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.
0.5686
MCD10053 Rev. 1.0
Page 6 of 9
www.power-one.com
QLS30 DC-DC Series Data Sheet
30A Quarter-Brick Converter
Industrial Standard Positive Trim (suffix –T)
The -T option units 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 the Figure 9.
Safety Considerations
The QLS30 Series converters feature 1500 Volt DC
isolation from input to output.
The input-to-output
resistance is greater than 10MOhm. These converters are
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 additional requirements may be needed for user’s
specific applications.
The QLS30 Series converters have no internal fuse. An
external fuse must be provided to protect the system from
catastrophic failure, as illustrated in Figure 7. The fuse
with a rating of 4A or less 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 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 9. QLS30 Series 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 QLS30 Series 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 voltages. The entire
system, including the QLS30 converter, must pass a
dielectric withstand test for reinforced insulation.
Design of this type of systems requires expert
engineering and understanding of the overall safety
requirements and should be performed by qualified
personnel.
ΔV %
For QLS30ZY use the following equations.
Vout(100+ ΔV%)
1.225ΔV%
⎛
⎞
⎟
R =5.11
,KΩ
⎜
UP
●
⎝
⎠
100
1
⎛
⎝
⎞
⎠
RDOWN = 5.11
−
,KΩ
⎜
⎟
2ΔV % 2
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.
Thermal Considerations
The QLS30 Series converters are designed for both
natural and forced convection cooling. The maximum
allowable output current of the converters is determined by
meeting the derating criteria of all electronic components
used in the power supplies. An example of the derating
criteria for the semiconductor junction temperature is not to
exceed 120°C to provide reliable long-term operation of the
converters.
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.
3. The QLS30 Series converters 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.
MCD10053 Rev. 1.0
Page 7 of 9
www.power-one.com
QLS30 DC-DC Series Data Sheet
30A Quarter-Brick Converter
Please contact Power-One for more derating criteria for
other components. The graphs in Figures 10-12 show the
maximum output current of the QLS30 Series converters at
different ambient temperatures under both natural and
forced (longitudinal airflow direction, from pin 1 to pin 3)
convection. As an example, from Figure 11, the QLS30ZA
operating at 70°C can deliver up to 30A reliably with
200LFM forced air.
28
01
24
20
16
12
8
NC (25 - 35 LFM)
100 LFM
200 LFM
300 LFM
400 LFM
4
35
01
0
30
25
40
55
70
85
25
Ambient Temperature (Deg C)
NC (25 - 35 LFM)
20
Figure 11. QLS30ZA (1.5V) Derating Curves
100 LFM
15
200 LFM
35
30
25
20
15
10
5
10
01
300 LFM
5
400 LFM
0
25
40
55
70
85
Ambient Temperature (Deg C)
NC (25 - 35 LFM)
100 LFM
200 LFM
300 LFM
400 LFM
Figure 10. QLS30ZB (1.8V) Derating Curves
0
25
40
55
70
85
Ambient Temperature (Deg C)
Figure 12. QLS30ZY (1.2V) Derating Curves
MCD10053 Rev. 1.0
Page 8 of 9
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QLS30 DC-DC Series Data Sheet
30A Quarter-Brick Converter
Mechanical Drawing
Pin
Function
1
-Vin
2
3
4
5
6
7
On/Off
+Vin
-Vout
-Sense
Trim
+Sense
8
+Vout
Tolerances:
.xx + .020 (.5)
.xxx + .010 (.25)
+ 0.002 (.05)
Pin Diameter
Ordering Information
Options
Suffixes to add to part number
Remote ON/OFF Positive- Standard, no suffix required
Negative- Add “N” suffix
Trim
Negative- Standard, no suffix required
Positive - Add “T” suffix
Pin Length
0.18”- Standard, no suffix required
0.11”- Add “8” suffix
0.15”- Add “9” 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.
MCD10053 Rev. 1.0
Page 9 of 9
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