Lineage Power FNW700R4 36 - 75 vdc input; 28vdc output; 700w output Datasheet

Data Sheet
September 6, 2008
FNW700R Series Power Modules; DC-DC Converters
36-75Vdc Input; 28Vdc, 700W Output
Features
ƒ
High power density: 127 W/in3
ƒ
Industry standard pin-out
ƒ
Low output ripple and noise
ƒ
Industry standard Full brick footprint
116.6mm x 60.7mm x 12.7mm
(4.6” x 2.4” x 0.5”)
Applications
ƒ
Remote Sense
ƒ
2:1 input voltage range
ƒ
Single tightly regulated main output
ƒ
Constant switching frequency
ƒ
RF Power Amplifier
ƒ
Latch after fault shutdown
ƒ
Wireless Networks
ƒ
Over temperature protection auto restart
ƒ
Switching Networks
ƒ
Loosely regulated auxiliary output
ƒ
Power good signal
ƒ
Output voltage adjustment trim (+10%/-40%)
ƒ
Wide operating case temperature range (-40°C to
100°C)
ƒ
CE mark meets 73/23/EEC and 93/68/EEC
directives§
ƒ
UL60950-1/CSA† C22.2 No. 60950-1-03 Certified
‡
(CCSAUS) and VDE 0805:2001-12 (EN60950-1)
Licensed
ƒ
ISO** 9001 and ISO 14001 certified manufacturing
facilities
Options
ƒ
Output OCP/OVP auto restart
ƒ
Shorter pins
ƒ
Unthreaded heatsink holes
Description
The FNW700R series of dc-dc converters are a new generation of isolated DC/DC power modules providing up to
700W output power in an industry standard full size brick footprint, which makes it an ideal choice for high voltage
and high power applications. Threaded-through holes are provided to allow easy mounting or addition of a heatsink
for high-temperature applications. The output is fully isolated from the input, allowing versatile polarity configurations
and grounding connections
§
This product is intended for integration into end use equipment only
CSA is a registered trademark of Canadian Standards Association.
‡
VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International Organization of Standards
†
Document No: DS07-003 ver 1.45
PDF name: fnw700r.ds.pdf
:
Data Sheet
September 6, 2008
FNW700R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 700W Output
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are
absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in
excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for
extended periods can adversely affect the device reliability.
Parameter
Device
Symbol
Min
Max
Unit
All
VIN
-0.3
80
Vdc
All
TA
-40
85
°C
All
TC
-40
100
°C
Storage Temperature
All
Tstg
-55
125
°C
I/O Isolation Voltage, input to case
All
⎯
⎯
1500
Vdc
Output to case
All
⎯
⎯
500
Vdc
Input Voltage (Continuous)
Operating Ambient Temperature
(See Thermal Considerations section)
Note: When the operating ambient temperature is within 55C~85C,
the application of the module refers to the derating curves of Figure
15 and Figure 16.
Operating Case Temperature
(See Thermal Considerations section)
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Parameter
Device
Symbol
Min
Typ
Max
Unit
Operating Input Voltage
All
VIN
36
48
75
Vdc
Maximum Input Current
(VIN=36V to 75V, IO=IO, max)
All
IIN,max
23
Inrush Transient
All
It
2
2
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; VIN=0V to
75V, IO= IOmax ; see Figure 10)
All
Input Ripple Rejection (120Hz)
All
40
60
Adc
2
As
mAp-p
dB
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This power module can be used in a wide variety of applications, ranging from simple standalone operation to being
an integrated part of complex power architecture. To preserve maximum flexibility, internal fusing is not included.
Always use an input line fuse, to achieve maximum safety and system protection. The safety agencies require a fastacting fuse with a maximum rating of 30A (see Safety Considerations section). Based on the information provided in
this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be
used. Refer to the fuse manufacturer’s data sheet for further information.
LINEAGE POWER
2
FNW700R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 700W Output
Data Sheet
September 6, 2008
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Typ
Max
Unit
Output Voltage Set-point
(VIN=VIN,nom, IO=IO, max, Tc =25°C)
All
VO, set
27.5
28
28.5
Vdc
Output Voltage
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
All
VO
27.15
⎯
28.85
Vdc
Output Regulation
Line (VIN=VIN, min to VIN, max)
All
⎯
0.05
0.2
%Vo
Load (IO=IO, min to IO, max)
All
⎯
0.05
0.2
%Vo
Temperature (Tc = -40ºC to +100ºC)
All
⎯
100
300
mV
RMS (5Hz to 20MHz bandwidth)
All
⎯
80
mVrms
Peak-to-Peak (5Hz to 20MHz bandwidth)
All
⎯
300
mVpk-pk
5000
μF
25
Adc
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max)
External Capacitance
Note: use a minimum 470uF output capacitor. If
0
the ambient temperature is less than -20 C, use
more than 3 of recommended minimum
capacitors.
All
CO, max
470
Output Current
All
IO
2
Output Current Limit Inception
All
IO, lim
26
29
32
Adc
Efficiency
0
VIN=VIN, nom, Tc=25 C
IO=IO, max , VO= VO,set
All
η
⎯
90
⎯
%
fsw
⎯
300
⎯
kHz
Vpk
ts
⎯
__
3
2
⎯
__
%VO, set
ms
Vpk
__
3
__
%VO, set
ts
⎯
2
⎯
ms
Switching Frequency
1000
Dynamic Load Response
(ΔIO/Δt=1A/10μs; Vin=Vin,nom; Tc=25°C; Tested
with a 470 μF aluminum and a 10 µF ceramic
capacitor across the load.)
Load Change from IO= 50% to 75% of IO,max:
Peak Deviation
Settling Time (Vo<10% peak deviation)
All
Load Change from IO= 75% to 50% of Io,max:
Peak Deviation
Settling Time (Vo<10% peak deviation)
Isolation Specifications
Parameter
Symbol
Min
Typ
Max
Unit
Isolation Capacitance
Ciso
⎯
1500
⎯
pF
Isolation Resistance
Riso
10
⎯
⎯
MΩ
Min
Typ
Max
General Specifications
Parameter
Device
Calculated Reliability based upon Telcordia SR332 Issue 2: Method I Case 3 (IO=80%IO, max,
TA=40°C, airflow = 200 lfm, 90% confidence)
All
Weight
All
LINEAGE POWER
Symbol
Unit
9
FIT
405.4
10 /Hours
MTBF
2,466,797
Hours
⎯
150
(5.3)
⎯
g
(oz.)
3
FNW700R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 700W Output
Data Sheet
September 6, 2008
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions for additional information.
Parameter
Device
Remote On/Off Signal Interface
(VIN=VIN, min to VIN, max ; open collector or equivalent),
Refer to remote on/off description and Figure 11.
Remote On/Off Current – Logic ON
Remote On/Off Current – Logic OFF
Symbol
Min
Typ
Max
Unit
All
Ion/off
1.0
⎯
5.0
mA
All
Ion/off
⎯
⎯
50
μA
All
Tdelay
60
75
100
ms
All
Tdelay
⎯
5
⎯
ms
Trise
⎯
25
⎯
ms
3
% VO, set
2
%Vo,nom
110
%Vo,nom
Turn-On Delay and Rise Times
(VIN=VIn,nom, IO=IO, max, 25C)
Case 1: On/Off input is set to Logic Low (Module
ON) and then input power is applied (Tdelay from
instant at which VIN = VIN, min until Vo=10% of VO,set)
Case 2: Input power is applied for at least 1 second
and then the On/Off input is set from OFF to ON
(Tdelay = from instant at which VIN=VIN, min until VO =
10% of VO, set).
Trise = time for VO to rise from 10% of VO,set to 90%
of VO,set.
All
Output Voltage Overshoot
(IO=80% of IO, max, TA=25°C)
Output Voltage Adjustment
(See Feature Descriptions):
__
__
Output Voltage Remote-sense Range
(only for No Trim or Trim down application )
All
Vsense
Output Voltage Set-point Adjustment Range (trim)
All
Vtrim
60
All
VO, limit
32
⎯
38
V
All
Tref
⎯
106
⎯
°C
35
36
Vdc
30
31
Vdc
4
Vdc
Output Overvoltage Protection
Over Temperature Protection
__
(See Feature Descriptions)
Input Under Voltage Lockout
VIN, UVLO
Turn-on Threshold
All
Turn-off Threshold
All
Hysteresis
All
Input Over voltage Lockout
VIN, OVLO
Turn-on Threshold
All
⎯
76
78
Vdc
Turn-off Threshold
All
79
80
⎯
Vdc
---
4
---
Vdc
Hysteresis
LINEAGE POWER
All
4
FNW700R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 700W Output
Data Sheet
September 6, 2008
Characteristic Curves
89
Vin=36V
87
Vin=48V
85
Vin=75V
83
81
0
5
10
15
20
25
VO (V) (10V/div)
EFFICIENCY (%)
91
VON/OFF(V) (2V/div)
93
On/Off VOLTAGE OUTPUT VOLTAGE
The following figures provide typical characteristics for the FNW700R (28V, 25A) at 25ºC. The figures are identical for
either positive or negative Remote On/Off logic.
OUTPUT CURRENT, Io (A)
VIN (V) (20V/div)
VO(V) (10V/div)
Figure 4. Typical Start-Up Using Remote On/Off,
R1=30Kohm; Co,ext = 470µF.
INPUT VOLTAGE OUTPUT VOLTAGE
VO (V) (100mV/div)
OUTPUT VOLTAGE,
Figure 1. Converter Efficiency versus Output
Current.
TIME, t (20ms/div)
TIME, t (20ms/div)
TIME, t (1μs/div)
TIME, t (1ms/div)
Figure 3. Transient Response to Dynamic Load
Change from 25% to 50% to 25% of Full Load at
Room Temperature and 48 Vdc Input; 0.1A/uS ;
Co,ext = 470µF.
LINEAGE POWER
IO (A) (10A/div)
VO(V) (500mV/div)
Figure 5. Typical Start-Up Using from VIN, positive logic
version shown; Co,ext = 470µF.
OUTPUT CURRENT OUTPUT VOLTAGE
IO (A) (10A/div) VO(V) (500mV/div)
OUTPUT CURRENT OUTPUT VOLTAGE
Figure 2. Typical Output Ripple and Noise at Room
Temperature and 48Vin; Io = Io,max; Co,ext = 470µF.
TIME, t (1ms/div)
Figure 6. Transient Response to Dynamic Load Change
from 50% to 75% to 50% of Full Load at Room
Temperature and 48 Vdc Input; 0.1A/uS ;
Co,ext = 470µF.
5
Data Sheet
September 6, 2008
FNW700R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 700W Output
Test Configurations
Design Considerations
Input Source Impedance
The power module should be connected to a low
ac-impedance source. Highly inductive source
impedance can affect the stability of the power module.
For the test configuration in Figure 7, a 470μF Low
ESR aluminum capacitor, CIN , mounted close to the
power module helps ensure the stability of the unit.
Consult the factory for further application guidelines.
Output Capacitance
Note: Measure the input reflected-ripple current with a
simulated source inductance (LTEST) of 12 µH. Capacitor CS
offsets possible battery impedance. Measure the current, as
shown above.
Figure 7. Input Reflected Ripple Current Test Setup.
The FNW700R power module requires a minimum
output capacitance of 470µF Low ESR aluminum
capacitor, Cout to ensure stable operation over the full
range of load and line conditions, see Figure 8. If the
O
ambient temperature is under -20 C, it is required to
use at least 3 of the minimum capacitors in parallel. In
general, the process of determining the acceptable
values of output capacitance and ESR is complex and
is load-dependant.
Safety Considerations
Note: Use a Cout (470 µF Low ESR aluminum or tantalum
capacitor typical), a 0.1 µF ceramic capacitor and a 10 µF
ceramic capacitor, and Scope measurement should be made
using a BNC socket. Position the load between 51 mm and 76
mm (2 in. and 3 in.) from the module.
Figure 8. Output Ripple and Noise Test Setup.
Note: All measurements are taken at the module terminals.
When socketing, place Kelvin connections at module terminals
to avoid measurement errors due to socket contact resistance.
Figure 9. Output Voltage and Efficiency Test Setup.
LINEAGE POWER
For safety-agency approval of the system in which the
power module is used, the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standard,
i.e., UL60950-1, CSA C22.2 No. 60950-1-03,
EN60950-1 and VDE 0805:2001-12.
For end products connected to –48Vdc, or –60Vdc
nominal DC MAINS (i.e. central office dc battery plant),
no further fault testing is required. *Note: -60Vdc
nominal battery plants are not available in the U.S. or
Canada.
For all input voltages, other than DC MAINS, where the
input voltage is less than 60Vdc, if the input meets all of
the requirements for SELV, then:
ƒ
The output may be considered SELV. Output
voltages will remain within SELV limits even with
internally-generated non-SELV voltages. Single
component failure and fault tests were performed
in the power converters.
ƒ
One pole of the input and one pole of the output
are to be grounded, or both circuits are to be kept
floating, to maintain the output voltage to ground
voltage within ELV or SELV limits. However, SELV
will not be maintained if VI(+) and VO(+) are
grounded simultaneously.
6
Data Sheet
September 6, 2008
FNW700R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 700W Output
Safety Considerations (continued)
For all input sources, other than DC MAINS, where the
input voltage is between 60 and 75Vdc (Classified as
TNV-2 in Europe), the following must be meet, if the
converter’s output is to be evaluated for SELV:
ƒ
The input source is to be provided with reinforced
insulation from any hazardous voltage, including
the ac mains.
ƒ
One VI pin and one Vo pin are to be reliably
earthed, or both the input and output pins are to be
kept floating.
ƒ
Another SELV reliability test is conducted on the
whole system, as required by the safety agencies,
on the combination of supply source and the
subject module to verify that under a single fault,
hazardous voltages do not appear at the module’s
output.
Figure 10. Circuit configuration for using Remote
On/Off Implementation.
Overcurrent Protection
Feature Description
To provide protection in a fault output overload
condition, the module is equipped with internal currentlimiting circuitry and can endure current limit for few
milli-seconds. A latching shutdown option is standard. If
overcurrent persists for few milli-seconds, the module
will shut down and remain off until the module is reset
by either cycling the input power or by toggling the
on/off pin for one second.
An auto-restart option (4) is also available in a case
where an auto recovery is required. If overcurrent
persists for few milli-seconds, the module will shut
down and auto restart until the fault condition is
corrected. If the output overload condition still exists
when the module restarts, it will shut down again. This
operation will continue indefinitely, until the overcurrent
condition is corrected.
Remote On/Off
Over Voltage Protection
Remote ON/OFF control is available as standard and
has positive logic remote On/Off mode only. The
converter will be active as long as a current Ion/off (1 to
5mA) is flowing into the ON/OFF+ (pin 4) and from the
ON/OFF- (pin 3), and inactive when no current is
flowing. Remote control pins are isolated up to 1.5 kV.
The voltage to drive this current can be derived from
the input voltage, the output voltage, or an external
supply with an appropriate current limit resistor. The
maximum forward current allowable without damage is
5 mA, and the maximum reverse current is 10mA. A
typical remote ON/OFF circuit is shown as Figure 10.
The current limit resistor (R1) is connected from Vin (+)
pin to ON/OFF + pin, an open collector or an equivalent
switch can be connected between ON/OFF - and VI (-)
pins to control ON/OFF operation. A 0 Ohm resistor
(R2) can be used if no open collector or switch used.
For 48Vin, an appropriate R1 value is recommended to
be 30Kohm (0.5W).
The output overvoltage protection consists of circuitry
that monitors the voltage on the output terminals. If the
voltage on the output terminals exceeds the over
voltage protection threshold, then the module will
shutdown and latch off. The overvoltage latch is reset
by either cycling the input power for one second or by
toggling the on/off signal for one second. The
protection mechanism is such that the unit can continue
in this condition until the fault is cleared.
An auto-restart option (4) is also available in a case
where an auto recovery is required.
All flammable materials used in the manufacturing of
these modules are rated 94V-0, or tested to the
UL60950 A.2 for reduced thickness.
The input to these units is to be provided with a
maximum 30 A fast-acting fuse in the unearthed lead.
LINEAGE POWER
Output Voltage Programming
Trimming allows the user to increase or decrease the
output voltage set point of a module. Trimming down is
accomplished by connecting an external resistor
between the TRIM pin and the SENSE(-) pin. Trimming
up is accomplished by connecting external resistor
between the SENSE(+) pin and Vo(+) pin. The trim
resistor should be positioned close to the module.
Be sure to use a zero resistor or short SENSE(+) and
Vo(+) pins when the trim up function is not used.
If not using the trim down feature, leave the TRIM pin
open.
7
Data Sheet
September 6, 2008
FNW700R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 700W Output
Feature Description (continued)
With an external resistor between the TRIM and
SENSE(-) pins (Radj-down), the output voltage set point
(Vo,adj) decreases (see Figure 11). The following
equation determines the required external-resistor
value to obtain a percentage output voltage change of
Δ%.
For output voltages: 28V
⎛ 100 ⎞
Radj − down = 5.97 × ⎜
− 1⎟KΩ
⎝ Δ% ⎠
Where,
Δ% =
Vo, nom − Vdesired
× 100
Vo, nom
Vdesired = Desired output voltage set point (V).
Figure 11. Circuit Configuration to Decrease Output
Voltage.
Trim Up – Increase Output Voltage
With an external resistor connected between the Vo(+)
and SENSE(+) pins (Radj-up), the output voltage set point
(Vo,adj) increases (see Figure 12).
The following equation determines the required
external-resistor value to obtain a percentage output
voltage change of Δ%.
For output voltages: 28V
Radj − up =
Vo, nom × Δ %
KΩ
100
Figure 12. Circuit Configuration to Increase Output
Voltage.
The voltage between the Vo(+) and Vo(-) terminals must
not exceed the minimum output overvoltage shut-down
value indicated in the Feature Specifications table. This
limit includes any increase in voltage due to remotesense compensation and output voltage set-point
adjustment (trim). See Figure 13.
Although the output voltage can be increased by both
the remote sense and by the trim, the maximum
increase for the output voltage is not the sum of both.
The maximum increase is the larger of either the
remote sense or the trim.
The amount of power delivered by the module is
defined as the voltage at the output terminals multiplied
by the output current. When using remote sense and
trim, the output voltage of the module can be
increased, which the same output current would
increase the power output of the module. Care should
be taken to ensure that the maximum output power of
the module remains at or below the maximum rated
power.
Examples:
To trim down the output of a nominal 28V module to
16.8V
Δ% =
28V − 16.8V
× 100
28V
∆% = 40
⎛ 100 ⎞
Radj − down = 5.97 × ⎜
− 1⎟KΩ
⎝ 40
⎠
Radj-down = 8.96 kΩ
Where,
To trim up the output of a nominal 28V module to 30.8V
Vdesired − Vo, nom
Δ% =
× 100
Vo, nom
Δ% =
Vdesired = Desired output voltage set point (V).
Δ% = 10
30.8V − 28V
× 100
28V
R adj− up =
28 × 10
KΩ
100
Radj-up = 2.8 KΩ
LINEAGE POWER
8
Data Sheet
September 6, 2008
FNW700R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 700W Output
Feature Description (continued)
Remote sense
Remote sense minimizes the effects of distribution
losses by regulating the voltage at the remote-sense
connections (see Figure 13). For No Trim or Trim down
application, the voltage between the remote-sense pins
and the output terminals must not exceed the output
voltage sense range given in the Feature Specifications
table i.e.:
[Vo(+) – Vo(-)] – [SENSE(+) – SENSE(-)] ≤ 2% of Vo,nom.
The voltage between the Vo(+) and Vo(-) terminals
must not exceed the minimum output overvoltage shutdown value indicated in the Feature Specifications
table. This limit includes any increase in voltage due to
remote-sense compensation and output voltage setpoint adjustment (trim). See Figure 13. If not using the
remote-sense feature to regulate the output at the point
of load, then connect SENSE(+) to Vo(+) and SENSE() to Vo(-) at the module.
Although the output voltage can be increased by both
the remote sense and by the trim, the maximum
increase for the output voltage is not the sum of both.
The maximum increase is the larger of either the
remote sense or the trim. The amount of power
delivered by the module is defined as the voltage at the
output terminals multiplied by the output current. When
using remote sense and trim: the output voltage of the
module can be increased, which at the same output
current would increase the power output of the module.
Care should be taken to ensure that the maximum
output power of the module remains at or below the
maximum rated power.
The module can be restarted by cycling the dc input
power for at least one second or by toggling the remote
on/off signal for at least one second.
Auxiliary Power Output
The module has an auxiliary power output, available on
pin 16, referenced to the Sense- pin. The output is
derived from the internal secondary bias supply and is
capable of delivering up to 15 mA, with a voltage range
that varies between 9Vdc and 13 Vdc. This supply is
typically used to drive LEDs. To prevent internal
module damage, do not connect or short this pin to any
other pin on the module.
Power Good Signal
The module contains a power good signal on pin 15,
consisting of an open collector circuit that is referenced
to the Sense- pin on the secondary side of the module.
The power good signal is active low, when the module
is operating normally. The maximum current that can
sunk at this pin, during normal operation active low, is
35 mAdc, and the maximum voltage allowed on the pin,
during module abnormal operation active high, is 35Vdc.
During transient load changes or during overcurrent
hiccup events, the sanity of the power good signal is
not guaranteed.
Figure 13. Effective Circuit Configuration for SingleModule Remote-Sense Operation Output Voltage.
Over Temperature Protection
The FNW700R module provides with non-latching over
temperature protection. A temperature sensor monitors
the operating temperature of the converter. If the
reference temperature exceeds a threshold of 106 °C
(typical) at the center of the baseplate, the converter
will shut down and disable the output. When the
baseplate temperature has decreased by
approximately 20 ºC the converter will automatically
restart.
LINEAGE POWER
9
FNW700R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 700W Output
Data Sheet
September 6, 2008
Thermal Considerations
The power modules operate in a variety of thermal
environments; however, sufficient cooling should be
provided to help ensure reliable operation of the unit.
Heat-dissipating components inside the unit are
thermally coupled to the case. Heat is removed by
conduction, convection, and radiation to the
surrounding environment. Proper cooling can be
verified by measuring the case temperature. Peak
temperature (TC) occurs at the position indicated in
Figure 14.
Considerations include ambient temperature, airflow,
module power dissipation, and the need for increased
reliability. A reduction in the operating temperature of
the module will result in an increase in reliability. The
thermal data presented here is based on physical
measurements taken in a wind tunnel.
For reliable operation this temperature should not
exceed 100ºC.
O U T P U T C U R R E N T , I o (A )
30
25
20
15
10
5
0
20
30
40
50
60
70
80
90
100
CASE TEMERATURE, TC, (oC)
Figure 15. Derating Output Current vs. case
temeprature for FNW700R in Conduction cooling
(cold plate) applications; Ta <72ºC in vicinity of
module interior; VIN = 48V.
30
45mm
AIRFLOW
Figure 14. Case (Tc ) Temperature Measurement
Location (top view).
The output power of the module should not exceed the
rated power for the module as listed in the ordering
Information table.
Although the maximum TC temperature of the power
modules is 100 °C, you can limit this temperature to a
lower value for extremely high reliability.
Please refer to the Application Note “Thermal
Characterization Process For Open-Frame BoardMounted Power Modules” for a detailed discussion of
thermal aspects including maximum device
temperatures.
Thermal Derating
Thermal derating is presented for two different
applications: 1) coupled to a cold plate inside a sealed
clamshell chassis, without any internal air circulation,
and 2) traditional open chassis or cards with force air
flow. In application 1, the module is cooled entirely by
conduction of heat from the module primarily through
the top surface to a coldplate, with some conduction
through the module’s pins to the power layers in the
system board; for application 2; the module is cooled
by heat removal into a forced airflow that passes
through the interior of the module and over the top
baseplate and/or an attached heatsink.
LINEAGE POWER
25
20
2.0 m/S
(400 lfm)
15
10
1.0 m/S
(200 lfm)
5
0.5 m/S
(100 lfm)
0
20
30
40
50
60
70
80
90
AMBIENT TEMERATURE, TA, (oC)
Figure 16. Derating Output Current vs. Local
Ambient Temperature and Airflow, No Heatsink, Vin
= 48V.
30
O U T P U T C U R R E N T , I o (A )
OUTPUT
23mm
O U T P U T C U R R E N T , I o (A )
TOP VIEW
2.0 m/S
(400 lfm)
25
20
15
1.0 m/S
(200 lfm)
10
0.5 m/S
(100 lfm)
5
0
20
30
40
50
60
70
80
90
o
AMBIENT TEMERATURE, TA, ( C)
Figure 17. Derating Output Current vs. Local
Ambient Temperature and Airflow, 1” Transverse
Heatsink, Vin = 48V.
10
Data Sheet
September 6, 2008
FNW700R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 700W Output
Layout Considerations
The FNW700R power module series are aluminum
base board packaged style, as such; component
clearance between the bottom of the power module
and the mounting (Host) board is limited. Avoid placing
copper areas on the outer layer directly underneath the
power module.
Post Solder Cleaning and Drying
Considerations
Post solder cleaning is usually the final circuit-board
assembly process prior to electrical board testing. The
result of inadequate cleaning and drying can affect both
the reliability of a power module and the testability of
the finished circuit-board assembly. For guidance on
appropriate soldering, cleaning and drying procedures,
refer to Lineage Power Board Mounted Power
Modules: Soldering and Cleaning Application Note.
LINEAGE POWER
11
FNW700R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 700W Output
Data Sheet
September 6, 2008
Mechanical Outline for Through-Hole Module
Dimensions are in millimeters and [inches].
Tolerances: x.x mm ± 0.5 mm [x.xx in. ± 0.02 in.] (unless otherwise indicated)
x.xx mm ± 0.25 mm [x.xxx in ± 0.010 in.]
TOP VIEW
SIDE VIEW
BOTTOM VIEW
Pin
1
2
3
4
Description
Vin –
Vin +
ON/OFF ON/OFF +
LINEAGE POWER
Pin
5
6
7
8
Description
Vo+
Vo+
Vo+
Vo-
Pin
9
10
11
12
Description
VoVoSENSE (-)
SENSE (+)
Pin
13
14
15
16
Description
TRIM
N/A
POWER GOOD
AUX POWER
12
Data Sheet
September 6, 2008
FNW700R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 700W Output
Recommended Pad Layout for Through Hole Module
Dimensions are in millimeters and [inches].
Tolerances: x.x mm ± 0.5 mm [x.xx in. ± 0.02 in.] (unless otherwise indicated)
x.xx mm ± 0.25 mm [x.xxx in ± 0.010 in.]
LINEAGE POWER
13
FNW700R Power Modules; DC-DC Converters
36 – 75 Vdc Input; 28Vdc Output; 700W Output
Data Sheet
September 6, 2008
Ordering Information
Please contact your Lineage Power Sales Representative for pricing, availability and optional features.
Table 1. Device Code
Output
Current
25A
Efficiency
48V (36-75Vdc)
Output
Voltage
28V
90%
Connector
Type
Through hole
48V (36-75Vdc)
48V (36-75Vdc)
28V
28V
25A
25A
90%
90%
Through hole
Through hole
Input Voltage
Product codes
Comcodes
FNW700R4
CC109141231
FNW700R64
FNW700R64-18
CC109145018
CC109141396
Table 2. Device Options
Option
Device Code Suffix
Auto restart (hiccup) protection
4
Pin Length: 3.68 mm ± 0.25mm , (0.145 in. ± 0.010 in.)
6
Unthreaded heatsink mounting holes
18
Asia-Pacific Headquarters
Tel: +65 6416 4283
World Wide Headquarters
Lineage Power Corporation
3000 Skyline Drive, Mesquite, TX 75149, USA
+1-800-526-7819
(Outside U.S.A.: +1-972-284-2626)
www.lineagepower.com
e-mail: [email protected]
Europe, Middle-East and Africa Headquarters
Tel: +49 89 6089 286
India Headquarters
Tel: +91 80 28411633
Lineage Power reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or
application. No rights under any patent accompany the sale of any such product(s) or information.
© 2008 Lineage Power Corporation, (Mesquite, Texas) All International Rights Reserved.
Document No: DS07-003 ver 1.45
PDF name: fnw700r.ds.pdf
Similar pages