FHS18Z28T [BEL]
DC-DC Regulated Power Supply Module, 1 Output, 500W, Hybrid;
| 型号： | FHS18Z28T |
| 厂家： | 
BEL FUSE INC. |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, 500W, Hybrid |
| 文件： | 总11页 (文件大小：742K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FHS DC-DC Series Data Sheet
500-Watt, Full-Brick Converter
Features
•
•
•
•
•
•
•
•
•
•
Low profile – 12.7 mm height
Input-to-output isolation: 1500VDC
Basic insulation
High efficiency - up to 93% at full load
Tight dynamic load response
Output overcurrent protection
Output overvoltage protection
Overtemperature protection
Remote sense
Applications
•
•
•
•
•
Base station amplifiers
Distributed power architectures
Telecommunications equipment
LAN/WAN applications
Remote on/off (primary referenced), positive
or negative logic option
•
•
Output voltage trim adjust, positive or
negative option
Data processing applications
UL 1950 Recognition, CSA 22.2 No. 950-95
certification, TUV IEC950
Description
The FHS Series power modules are dc-dc converters that operate over an input voltage range of 36 to 75VDC and
provide a regulated DC output voltage at up to 18 amps of output current. The output is fully isolated from the
input, which allows a positive or negative output configuration.
The open-frame module is constructed with a two-board approach. The power devices are connected to an
Insulated Metal Substrate (IMS) base plate, which provides very low thermal impedance. A separate PCB is
populated with the control circuitry and is physically isolated from the hotter IMS board. This approach allows for
lower component temperatures, hence increased reliability. The standard feature set includes remote on/off,
remote output voltage sensing, negative logic output trim (optional positive logic output trim available1), input under
and overvoltage lockout and overtemperature shutdown with hysteresis.
Model Selection
Model
Input
voltage
(VDC)
Input
current, Max,
(ADC)
Output
voltage
(VDC)
Output rated
current
I rated, (ADC)
Output
Ripple/Noise
(mV p-p)
Typical
Efficiency
@ I rated, (%)
FHS18Z28
36-75
16
28
18
150
93
This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use
equipment should be followed.
1
Consult factory for availability.
REV. JUN 09, 2004
Page 1 of 11
FHS DC-DC Series Data Sheet
500-Watt, Full-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
Operating Temperature
Storage Temperature
Baseplate Temperature
-40
-55
125
°C
VDC
W
ON/OFF Control Voltage
Output Power
Referenced to -Vin
7
504
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
5.4/152
Yes
Oz/g
Water Washing
MTBF
Standard process
Per Bellcore TR-NWT-000332
1,000
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
Input to output, input to base plate
Output to base plate
1500
1500
10
VDC
VDC
MOhm
pF
Isolation Voltage
Isolation Resistance
Isolation Capacitance
1000
Safety Regulatory Compliance
Safety Agency
Underwriters Laboratories
TUV product Service
CB report
Standard Approved To:
UL60950/CSA60950-00
Marking
cULus
TUV EN60950:2000
IEC60950:1999
TUV PS Baurt mark
N/A.
REV. JUN 09, 2004
Page 2 of 11
FHS DC-DC Series Data Sheet
500-Watt, Full-Brick Converter
Input Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Conditions/Description
Continuous
Min
36
Nom
48
Max
75
Units
VDC
VDC
VDC
Input Voltage
Turn-On Input Voltage
Turn-Off Input Voltage
Ramping Up 1
32
34
36
Ramping Down 1
30
32
34
Turn On/Off Hysteresis
Input over voltage protection
Input Reflected Ripple Current
1.5
76
VDC
VDC
Turn-Off threshold
80
84
60
Full Load, 12µH source inductance
BW=20MHz 2
mAP-P
Inrush Transient
Vin=Vin.max
0.1
A2s
1
2
Refer to Fig. 2 for waveform.
Refer to Fig. 10 for Test measurement circuit.
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
Output Current
Vin=Vin.nom, Full Load
27.44
1.8
28
28.56
18
Vdc
A
Line Regulation
Load Regulation
Vin.min to Vin.max, IRATED-MAX
Vin=Vin.nom, 10% to 100%Irated
TBaseplate = -40OC to +110OC)
Over line and load
0.2
0.5
0.5
1.0
0.02
%Vout
%Vout
%Vo/OC
mVP-P
mVRMS
Output Temperature Regulation
Ripple and Noise, DC to 20MHz 1,2
150
30
Tamb= 0°C to 85°C
Dynamic Regulation
Peak Deviation
Settling Time
50-75% load step change
700
250
15
800
750
25
mV
µs
ms
to 1% error band
To 97% VoNOM
Output Turn-On Time 3
Admissible Load Capacitance
IRATED, resistive load, VinNOM
No damage to converter
100
µF/A
Yes
400
Backdrive Protection
Switching Frequency
kHz
1
2
3
At Iout<Iout-min, the output may contain low frequency component that exceeds ripple specifications.
See Figure 11 for test setup
Refer to fig. 3
REV. JUN 09, 2004
Page 3 of 11
FHS DC-DC Series Data Sheet
500-Watt, Full-Brick Converter
Protections Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Conditions/Description
Overcurrent Protection
Min
Nom
Max
Units
Type
Non-latching, auto-recovery
20 23
Threshold
Short Circuit
29
15
A
Hiccup-type 1
ARMS
Overvoltage Protection 2
Type
Clamping / Hiccup, auto-recovery
All Vin and Io conditions 115
Overtemperature Protection
Non-latching, auto-recovery
Baseplate temperature 120
Threshold
140
130
% Vout
Type
Threshold
°C
°C
Recovery
90
1
2
Refer to Fig. 4
Refer to Fig. 5
Feature Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter
Conditions/Description
ON/OFF 1
Min
Nom
Max
Units
Negative Logic (-N suffix)
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
Converter ON
Source Current
Converter OFF
-0.5
2.5
0.8
1
7
VDC
mADC
VDC
0.5
Open Circuit Voltage
Positive Logic (no suffix)
5
VDC
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
Converter ON
2.5
7
5
0.8
1
VDC
VDC
VDC
Open Circuit Voltage
Converter OFF
Source Current
-0.5
0.5
mADC
Remote Sense 2
5
%Vout
Remote Sense Headroom
Output Voltage Trim 2
Vin = Vin-nom, Iout=Irated
Vin = Vin-nom, Iout=Irated
Trim Up
10
%
%
Trim Down
-10
1
Additional information located on page 6.
2 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. JUN 09, 2004
Page 4 of 11
FHS DC-DC Series Data Sheet
500-Watt, Full-Brick Converter
Efficiency Characteristics
Turn-on Waveform
FHS18Z28. EFF. VS. LOAD
100
95
90
85
80
75
70
65
60
55
50
45
40
EFF.(36V)
30 40
EFF.(48V)
EFF.(75V)
80 90 100
10
20
50
60
70
LOAD %
Figure 1. FHS18Z28 Efficiency vs. Output Load
Figure 3. Output Voltage turn-on FHS18Z28
Conditions: Vin=48V, Load: full, , Co=none
(Note: monotonic rise characteristic)
Input Turn-On / Off Operation
Input Current vs. Voltage
Short Circuit Operation
17
16
15
14
13
12
11
10
9
8
7
6
Turn On
Voltage
Threshold
5
4
3
Turn Off
Voltage
2
1
Threshold
0
0
10
20
30
40
50
60
70
80
Figure 4. Output Current with Shorted Output Pins,
Vin = 75Vdc, Scale is 20Amp/Div.
Input Voltage (V)
(Actual amplitude: 10.8ARMS
)
Once the output current is brought back into its
specified range, the converter automatically exits
the hiccup mode and continues normal operation.
Figure 2. FHS18Z28 Input UVLO Characteristics
REV. JUN 09, 2004
Page 5 of 11
FHS DC-DC Series Data Sheet
500-Watt, Full-Brick Converter
OVP Operation
that the capacitors do not substitute the filtering
required by the load.
Shutdown Feature Description
The ON/OFF pin in the FHS Series converters
functions as a normal soft shutdown.
referenced to the –Vin pin or signal ground (see
Figure 6). With the positive logic, when the
It is
ON/OFF pin is pulled low, the output is turned off
and the unit exhibits very low input current.
With negative logic (which is denoted by the suffix
“–N” in the part number), 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.
Figure 5. Output Voltage Under OVP Condition,
Vin = 75Vdc, Min Load. Scale is 10V/Div.
(Actual amplitude: 34VPEAK
The user should avoid connecting a resistor
between the ON/OFF pin and the +Vin pin.
)
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 6 shows the recommended connections for
the FHS Series converter.
FHSXXZX
Fuse
+Vo
+Vi
+Sense
Note:
If the ON/OFF pin is not used, it can be left floating (positive
logic), or connected to the -Vin pin (negative logic).
C1
C2
C3
Trim
On/Off
-Vi
-Sense
-Vo
Remote Sense
The FHS Series converters have the capability to
remotely sense both lines of the output. This
feature moves the effective output voltage
regulation point from the output of the unit to the
point of connection of the remote sense pins. This
feature automatically adjusts the output voltage of
the converter in order to compensate for voltage
drops in distribution and maintain a regulated
voltage at the point of load. This is shown in
Figures 6, 7 & 8.
Figure 6. Typical Application of the FHS Series
FHS 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 100µF electrolytic capacitor with the
ESR<0.7Ω is recommended.
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.
If the remote sense feature is not to be used, the
sense pins should be connected locally. The
+Sense (or Vsense) pin should be connected to the
+Vout pin directly at the output of the converter and
the –Sense (Vsense RTN) pin should be connected
to the -Vout pin directly at the output of the
converter.
For output decoupling we recommend to use a 10µF
tantalum and a 1µF ceramic capacitors connected
directly across the output pins of the converter. Note
REV. JUN 09, 2004
Page 6 of 11
FHS DC-DC Series Data Sheet
500-Watt, Full-Brick Converter
4.17Vonom(100 + ∆%)
∆%
510
⎛
⎜
⎞
⎠
Radj −up =
−
− 42.2) kΩ
⎟
If sense pins are not connected to the load, or the
respective output pins, the converter will not be
damaged, but may not meet the output voltage
regulation specifications.
∆%
⎝
510
⎛
⎜
⎞
Radj − down =
− 42.2) kΩ
⎟
∆%
⎝
⎠
Output Voltage Trim
where ∆% is the output voltage change expressed
in percent of the nominal output voltage, Vout.
(example: to trim up or down by 5% of Vo nominal,
∆% = 5)
The trim feature allows the user to adjust the output
voltage from the nominal value. This can be used to
compensate for distribution drops, perform margining
in production, or accommodate other requirements
when output voltage needs to be adjusted from the
nominal value. There are two trim options available.
Negative Logic Trim (no P/N suffix)
The negative logic trim unit trims down with a
resistor from Trim to Vsense, and trims up with a
resistor from Trim to VsenseRTN (see figure 8).
Optional Positive Trim (suffix –T)
The -T option units trim up with a resistor from the
TRIM pin to the (+)Vsense pin and trim down with a
resistor from the TRIM pin to the (-)Vsense RTN pin
as shown in Figure 7.
Figure 8. FHS Series Negative Trim Schematic
The equations below determine the trim resistor
value required to achieve a new output voltage.
⎛
⎞
2.49
Radj − up = ⎜
− 20⎟kΩ
⎜
⎟
2.49/(1.225*54.4/(Voadj −1.225)) −1
⎝
⎠
Figure 7. FHS Series Positive Trim Schematic (-T)
⎛
⎞
54.4
The equations below determine the trim resistor
value required to achieve a ∆% change in the output
voltage.
⎜
⎜
⎟
Radj − down =
− 20 kΩ
⎟
⎠
54.4/(2.03(Voadj −1.225)) −1
⎝
where Voadj is the desired output voltage
REV. JUN 09, 2004
Page 7 of 11
FHS DC-DC Series Data Sheet
500-Watt, Full-Brick Converter
SELV only if the output is grounded per the
requirements of the standard.
Notes:
•
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 FHS
converter, must pass a dielectric withstand test
for Reinforced insulation. Design of this type of
systems requires expert engineering and
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.
3. The FHS 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.
understanding
of
the
overall
safety
requirements and should be performed by
qualified personnel.
Safety Considerations
Thermal Considerations
The FHS Series converters feature 1500 Volt DC
isolation from input to output. The input-to-output
resistance is greater than 10MΩ. 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
FHS Series converters are designed for natural or
forced convection cooling. The maximum allowable
output current of the converters is determined by
meeting the derating criteria for all components
used in the converters. For example, the maximum
semiconductor junction temperature is not allowed
to exceed 125°C to ensure reliable long-term
operation of the converters. Contact Power-One for
the complete list of the derating criteria.
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.
Figure 9 shows the maximum output current of the
FHS Series at different ambient temperatures under
both natural and forced (longitudinal airflow
direction, from pin 1 to pin 4) convection.
The FHS Series converters have no internal fuse.
The external fuse must be provided to protect the
system from catastrophic failure as shown in Figure
6. The fuse with a rating not greater than 20A 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.
THERMAL DERATING CURVE
FHS18Z28
Vin = 54V, Orientation : Vin- to Vin +
Data Rev: 01
20
15
10
5
In order for the output of the FHS 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:
NC (25 - 35 LFM)
100 LFM
200 LFM
300 LFM
400 LFM
70
0
25
40
55
Ambient Temperature (Deg C)
85
Figure 9. FHS18Z28 Derating Curves
•
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
REV. JUN 09, 2004
Page 8 of 11
FHS DC-DC Series Data Sheet
500-Watt, Full-Brick Converter
Test Configurations
To improve accuracy and repeatability of output
ripple and noise measurements, Power-One utilizes
the test setup shown in Figure 11.
TO OSCILLOSCOPE
COPPER STRIPS (2 to 3 inches)
DUT
Vi(+)
Vi(-)
Ltest
12 uH
+Vo1
Cs 220 uF
22 uF
ESR < 0.7 OHM
@ 20 ºC, 100 kHz
0.1uf
ceramic
10uF
Tantalum
LOAD1
SCOPE
BATTER
Y
ESR < 0.1 OHM
@ 20 ºC, 100
kHz
-Vo1
Figure 11. Output Ripple and
Noise Measurement Test Setup
.
Figure 10. Input Reflected Ripple Current Test Setup
Note: Measure input reflected-ripple current with a simulated
inductance (Ltest) of 12 µH. Capacitors offset possible battery
impedance. Measure current as shown above.
A BNC connector is used for the measurements to
eliminate noise pickup associated with long ground
leads of conventional scope probes.
The
connector, a 0.1µF ceramic and a 10µF tantalum
capacitors, and the load are located 2-3” away from
the converter.
REV. JUN 09, 2004
Page 9 of 11
FHS DC-DC Series Data Sheet
500-Watt, Full-Brick Converter
Conducted EMI (Line)
FC100V20A
FHS18Z28
Vo1
+
Vin+
LOAD1
VIN
C1
C2
C3
C4
-Vo1
-
Vin-
GND
CASE
C5
C6
Ref. Des
C1, 2
C3
C4
C5, 6
F1
Description
0.47µF @100V MLC Capacitor (1812)
100µF @ 100V Alum. Electrolytic Capacitor
22µF@ 100V Alum. Electrolytic Capacitor
0.01µF MLC Capacitor
Manufacture
AVX or Equivalent (Equiv.)
Nichicon NRSZ Series or Equiv.
United Chemicon KMG Series or Equiv.
AVX or Equiv.
FC100V20A Input Filter Module
Power-One
Figure 12. Recommended Filter Configuration
(to meet CISPR 22 Class A for Conducted Emissions)
The above circuit and component values are offered as a guide. Performance results vary depending on
circuit layout techniques, proximity to noise emitting components and conductor traces and other variables
of the specific application. Verification of compliance must be performed.
Figure 13. Measured Performance Characteristics
CISPR 22 Class A for Conducted Emissions
Vin=48Vdc, Io=18Amps
REV. JUN 09, 2004
Page 10 of 11
FHS DC-DC Series Data Sheet
500-Watt, Full-Brick Converter
Mechanical Drawing
Mechanical Tolerances
Millimeters
Inches
X.XX
0.020
X.X 0.5
X.XXX 0.010
X.XX 0.25
Pin
0.002
0.05
Ordering Information
Pin
Function
Options
Suffixes to add to part number
1
2
3
-Vin
+Vin
Sgnd
On/off
Vout
-Vout
-Sense
+Sense
Trim
Remote ON/OFF
Positive- Standard, no suffix required
Negative- Add “N” suffix
4
Trim
Negative- No suffix required
Positive - Add “T” suffix 1
0.18”- Standard, no suffix required
0.11”- Add “8” suffix 1
5, 6, 7
8,9,10
11
12
13
Pin Length
0.15”- Add “9” suffix 1
14
NU
15
IOG
Notes:
1 Consult factory for availability.
NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not 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.
REV. JUN 09, 2004
Page 11 of 11
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