GE Industrial Solutions FNW700R User Manual

Data Sheet
October 24, 2011

FNW700R Series Power Modules; DC-DC Converters

Applications

 RF Power Amplifier

 Wireless Networks

 Switching Networks

Options

 Output OCP/OVP auto restart

 Shorter pins

 Unthreaded heatsink holes

36-75Vdc Input; 28Vdc, 700W Output

Features

 Compliant to RoHS EU Directive 2002/95/EC (-Z

versions)

 High power density: 127 W/in

 Industry standard pin-out

 Low output ripple and noise

 Industry standard Full brick footprint

116.6mm x 60.7mm x 12.7mm

(4.6” x 2.4” x 0.5”)

 Remote Sense

 2:1 input voltage range

 Single tightly regulated main output

 Constant switching frequency

 Latch after fault shutdown

 Over temperature protection auto restart

 Loosely regulated auxiliary output

 Power good signal

 Output voltage adjustment trim (+10%/-40%)

 Wide operating case temperature range (-40°C to

100°C)

 CE mark meets 73/23/EEC and 93/68/EEC

directives

 UL60950-1/CSA

(

C

§

†

C22.2 No. 60950-1-03 Certified

CSAUS) and VDE‡ 0805:2001-12 (EN60950-1)

Licensed

 ISO** 9001 and ISO 14001 certified manufacturing

facilities

3

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 reg istered trademark of Canadian Standards Associatio n.

‡

VDE is a t rademark of Verband Deutscher Elektrotechniker e.V.

** ISO is a registered trademark of the International Orga nization of Standards

Document No: DS07-003 ver 1.48

PDF name: FNW700R.pdf

:

Data Sheet

g

October 24, 2011

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

Input Voltage (Continuous) All V

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 Fi

Operating Case Temperature
(See Thermal Considerations section)

Storage Temperature All T

I/O Isolation Voltage, input to case All

Output to case All

ure 16.

All T

All T

IN

A

-40 100 °C

C

stg

 
 

-0.3 80 Vdc

-40 85 °C

-55 125 °C

1500 Vdc

500 Vdc

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=I

Inrush Transient All I2t 2 A2s

Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; V
75V, I

= I

; see Figure 10)

O

Omax

Input Ripple Rejection (120Hz) All 60 dB

) Adc

O, max

=0V to

IN

All I

All 40 mA

IN,max

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.

23

p-p

LINEAGE POWER 2

Data Sheet
October 24, 2011

FNW700R Power Modules; DC-DC Converters

36 – 75 Vdc Input; 28Vdc Output; 700W Output

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Output Voltage Set-point
(V

IN=VIN,nom

, IO=I

O, max

, Tc =25°C)

All V

O, set

Output Voltage
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)

All V

O

Output Regulation

Line (VIN=V

Load (IO=I

IN, min

O, min

to V

to I

) All  0.05 0.2 %Vo

IN, max

) All  0.05 0.2 %Vo

O, max

Temperature (Tc = -40ºC to +100ºC) All

Output Ripple and Noise on nominal output

(VIN=V

IN, nom

and IO=I

O, min

to I

)

O, max

RMS (5Hz to 20MHz bandwidth) All

Peak-to-Peak (5Hz to 20MHz bandwidth) All

External Capacitance

Note: use a minimum 470uF output capacitor. If
the ambient temperature is less than -20

0

C, use

All C

O, max

more than 3 of recommended minimum
capacitors.

Output Current All I

Output Current Limit Inception All I

Efficiency
V

IN=VIN, nom

I

O=IO, max , VO

, Tc=250C

= V

O,set

All

Switching Frequency f

O

O, lim

η

sw

Dynamic Load Response

(IO/t=1A/10s; Vin=Vin,
with a 470 μF aluminum and a 10 µF ceramic

capacitor across the load.)

; Tc=25°C; Tested

nom

27.5 28 28.5 V

27.15








100 300 mV

80 mV

300 mV

28.85 V

470 1000 5000 μF

2 25 Adc

26 29 32 Adc



90





300



dc

dc

rms

pk-pk

%

kHz

Load Change from IO= 50% to 75% of I

Peak Deviation

Settling Time (Vo<10% peak deviation)

Load Change from IO= 75% to 50% of I

Peak Deviation

Settling Time (Vo<10% peak deviation)

O,max

o,max

:

:

All

V

t

V

pk

ts

__ 3 __ %V

pk

s


__



3
2

2


__



%V

ms

ms

O, set

O, set

Isolation Specifications

Parameter Symbol Min Typ Max Unit

Isolation Capacitance C

Isolation Resistance R

iso

iso



10

1500

 



pF

MΩ

General Specifications

Parameter Device Symbol Min Typ Max Unit

Calculated Reliability based upon Telcordia SR­332 Issue 2: Method

=40°C, airflow = 200 lfm, 90% confidence)

T

A

I Case 3 (I

=80%I

O

O, max

,

All

Weight All

FIT 405.4 10

MTBF 2,466,797 Hours



150



(5.3) (oz.)

LINEAGE POWER 3

9

/Hours

g

Data Sheet

p

October 24, 2011

FNW700R Power Modules; DC-DC Converters

36 – 75 Vdc Input; 28Vdc Output; 700W Output

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 Symbol Min Typ Max Unit

Remote On/Off Signal Interface

(VIN=V
Refer to remote on/off descri

Remote On/Off Current – Logic ON All I

Remote On/Off Current – Logic OFF All I

Turn-On Delay and Rise Times

(VIN=V

Case 1: On/Off input is set to Logic Low (Module
ON) and then input power is applied (T
instant at which V

Case 2: Input power is applied for at least 1 second
and then the On/Off input is set from OFF to ON
(T

delay

10% of V

T

rise

of V

Output Voltage Overshoot 3 % V

(IO=80% of I

Output Voltage Adjustment
(See Feature Descriptions):

Output Voltage Remote-sense Range
(only for No Trim or Trim down application )

Output Voltage Set-point Adjustment Range (trim) All V

Output Overvoltage Protection

Over Temperature Protection

(See Feature Descriptions)

Input Under Voltage Lockout V

Input Over voltage Lockout V

IN, min

In,nom

to V

, IO=I

; open collector or equivalent),

IN, max

, 25C)

O, max

= V

IN

tion and Figure 11.

until Vo=10% of V

IN, min

= from instant at which VIN=V

).

O, set

= time for VO to rise from 10% of V

.

O,set

, TA=25°C)

O, max

Turn-on Threshold

Turn-off Threshold

Turn-on Threshold

Turn-off Threshold

delay

IN, min

from

O,set

until VO =

to 90%

O,set

Hysteresis

Hysteresis

)

on/off

on/off

1.0

 



5.0 mA

50 μA

All

60 75 100 ms

T

delay

All

T

All

All V

All

V

All T

All

All

All

All

All

All

T

delay

rise





sense

60

trim

O, limit

ref

IN, UVLO

IN, OVLO

__

32


35 36 V

30 31 V

4 V



79 80

--- 4 --- V

5

25

__

__



106





2 %V

110 %V

38 V


76 78 V



ms

ms

°C

V

O, set

o,nom

o,nom

dc

dc

dc

dc

dc

dc

LINEAGE POWER 4

Data Sheet

OUTPUT CURRENT OUTPUT

VOLTAGE

October 24, 2011

FNW700R Power Modules; DC-DC Converters

36 – 75 Vdc Input; 28Vdc Output; 700W Output

Characteristic Curves

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.

93

91

89

Vin=36V

87

85

Vin=48V

Vin=75V

83

EFFICIENCY (%)

81

0 5 10 15 20 25

OUTPUT CURRENT, Io (A) TIME, t (20ms/div)

Figure 1. Converter Efficiency versus Output
Current.

(V) (100mV/div)

O

V

OUTPUT VOLTAGE,

TIME, t (1s/div)

Figure 2. Typical Output Ripple and Noise at Room
Temperature and 48Vin; I

o

= I

o,max

; C

= 470µF.

o,ext

(V) (10V/div)

O

(V) (2V/div) V

ON/OFF

On/Off VOLTAGE OUTPUT VOLTAGE

V

Figure 4. Typical Start-Up Using Remote On/Off,
R1=30Kohm; C

(V) (10V/div)

O

(V) (20V/div) V

IN

INPUT VOLTAGE OUTPUT VOLTAGE

V

Figure 5. Typical Start-Up Using from V
version shown; C

= 470µF.

o,ext

o,ext

TIME, t (20ms/div)

= 470µF.

, positive logic

IN

(V) (500mV/div)

(V) (500mV/div)

O

(A) (10A/div) V

O

I

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 ;

= 470µF.

C

o,ext

O

(A) (10A/div) V

O

I

OUTPUT CURRENT OUTPUT VOLTAGE

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 ;

C

= 470µF.

o,ext

LINEAGE POWER 5

Data Sheet
October 24, 2011

FNW700R Power Modules; DC-DC Converters

36 – 75 Vdc Input; 28Vdc Output; 700W Output

Test Configurations

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.

Note: Use a C
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.

(470 µF Low ESR aluminum or tantalum

out

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, C
power module helps ensure the stability of the unit.
Consult the factory for further application guidelines.

Output Capacitance

The FNW700R power module requires a minimum
output capacitance of 470µF Low ESR aluminum
capacitor, C
range of load and line conditions, see Figure 8. If the
ambient temperature is under -20
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.

to ensure stable operation over the full

out

, mounted close to the

IN

O

C, it is required to

Safety Considerations

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 –48V
nominal DC MAINS (i.e. central office dc battery plant),
no further fault testing is required. *Note: -60V
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 60V

dc

the requirements for SELV, then:

 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.

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 V
grounded simultaneously.

, or –60Vdc

dc

, if the input meets all of

(+) and VO(+) are

I

dc

LINEAGE POWER 6

Data Sheet
October 24, 2011

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 75V
TNV-2 in Europe), the following must be meet, if the
converter’s output is to be evaluated for SELV:

 The input source is to be provided with reinforced

insulation from any hazardous voltage, including
the ac mains.

 One V

 Another SELV reliability test is conducted on the

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.

pin and one Vo pin are to be reliably

I

earthed, or both the input and output pins are to be
kept floating.

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.

(Classified as

dc

Feature Description

Remote On/Off

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 V
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).

(-)

I

Figure 10. Circuit configuration for using Remote
On/Off Implementation.

Overcurrent Protection

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.

Over Voltage Protection

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.

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 V
resistor should be positioned close to the module.

Be sure to use a zero resistor or short SENSE(+) and
V

(+) pins when the trim up function is not used.

o

If not using the trim down feature, leave the TRIM pin
open.

(+) pin. The trim

o

LINEAGE POWER 7

Data Sheet
October 24, 2011

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 (R

) decreases (see Figure 11). The following

(V

o,adj

equation determines the required external-resistor
value to obtain a percentage output voltage change of
%.

For output voltages: 28V



downadj

Where,

%



V

V

= Desired output voltage set point (V).

desired

Figure 11. Circuit Configuration to Decrease Output
Voltage.

Trim Up – Increase Output Voltage

With an external resistor connected between the Vo(+)
and SENSE(+) pins
(

V

) increases (see Figure 12).

o,adj

The following equation determines the required
external-resistor value to obtain a percentage output
voltage change of %.

For output voltages: 28V





R

upadj

Where,

%



V

V

= Desired output voltage set point (V).

desired

), the output voltage set point

adj-down

97.5R



nom,o

100



nom,o

100











VV

desirednom,o

(

R

adj-up



VV

nom,odesired





K1





%



100



),

the output voltage set point

%nom,Vo



K

100



Figure 12. Circuit Configuration to Increase Output
Voltage.

The voltage between the V
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

8.1628

% 



∆% = 40



R

adj-down



To trim up the output of a nominal 28V module to 30.8V

% 



Δ% = 10

R



R

adj-up



28

downadj

= 8.96 k





upadj

100

= 2.8 KΩ

V

97.5R

V28V8.30



V28

1028

K

(+) and Vo(-) terminals must

o

VV








100

40

100

100







K1




LINEAGE POWER 8

Data Sheet
October 24, 2011

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 V

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.

o,nom

.

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 9V
typically used to drive LEDs. To prevent internal
module damage, do not connect or short this pin to any
other pin on the module.

and 13 Vdc. This supply is

dc

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 mA
during module abnormal operation active high, is 35V
During transient load changes or during overcurrent
hiccup events, the sanity of the power good signal is
not guaranteed.

, and the maximum voltage allowed on the pin,

dc

dc

.

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

Data Sheet

A

October 24, 2011

FNW700R Power Modules; DC-DC Converters

36 – 75 Vdc Input; 28Vdc Output; 700W Output

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 (T
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.

23mm

Figure 14. Case (T
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 T
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.

) occurs at the position indicated in

C

TOP VIEW

OUTPUT

45mm

) Temperature Measurement

c

IRFLOW

temperature of the power

C

30

25

(A )

o

20

15

10

5

OUTPUT CURRENT , I

0

20 30 40 50 60 70 80 90 100

CASE TEMERATURE, T

, (oC)

C

Figure 15. Derating Output Current vs. case
temeprature for FNW700R in Conduction cooling
(cold plate) applications; T
module interior; V

30

25

(A )

o

20

15

10

1.0 m/S

(200 lfm)

5

OUTPUT CURRENT , I

0

20 30 40 50 60 70 80 90

= 48V.

IN

0.5 m/S

(100 lfm)

AMBIENT TEMERATURE, T

<72ºC in vicinity of

a

2.0 m/S

(400 lfm)

, (oC)

A

Figure 16. Derating Output Current vs. Local
Ambient Temperature and Airflow, No Heatsink, Vin
= 48V.

30

25

(A )

o

20

15

10

5

OUTPUT CURRENT , I

0

20 30 40 50 60 70 80 90

1.0 m/S

(200 lfm)

0.5 m/S

(100 lfm)

AMBIENT TEMERATURE, T

, (oC)

A

2.0 m/S

(400 lfm)

Figure 17. Derating Output Current vs. Local
Ambient Temperature and Airflow, 1” Transverse
Heatsink, Vin = 48V.

LINEAGE POWER 10

Data Sheet
October 24, 2011

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.

Through-Hole Lead-Free Soldering
Information

The RoHS-compliant, Z version, through-hole products
use the SAC (Sn/Ag/Cu) Pb-free solder and RoHS­compliant components. The non-Z version products
use lead-tin (Pb/Sn) solder and RoHS-compliant
components. Both version modules are designed to be
processed through single or dual wave soldering
machines. The pins have an RoHS-compliant, pure tin
finish that is compatible with both Pb and Pb-free wave
soldering processes. A maximum preheat rate of 3C/s
is suggested. The wave preheat process should be
such that the temperature of the power module board is
kept below 210C. For Pb solder, the recommended
pot temperature is 260C, while the Pb-free solder pot
is 270C max. Not all RoHS-compliant through-hole
products can be processed with paste-through-hole Pb
or Pb-free reflow process. If additional information is
needed, please consult with your Lineage Power
representative for more details.

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

Data Sheet
October 24, 2011

FNW700R Power Modules; DC-DC Converters

36 – 75 Vdc Input; 28Vdc Output; 700W Output

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 Description Pin Description Pin Description Pin Description

1 Vin – 5 Vo+ 9 Vo- 13 TRIM
2 Vin + 6 Vo+ 10 Vo- 14 N/A
3 ON/OFF - 7 Vo+ 11 SENSE (-) 15 POWER GOOD
4 ON/OFF + 8 Vo- 12 SENSE (+) 16 AUX POWER

LINEAGE POWER 12

Data Sheet
October 24, 2011

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

Data Sheet

a

©

October 24, 2011

FNW700R Power Modules; DC-DC Converters

36 – 75 Vdc Input; 28Vdc Output; 700W Output

Ordering Information

Please contact your Lineage Power Sales Representative for pricing, availability and optional features.

Table 1. Device Code

Input Voltage

48V (36-75Vdc) 28V 25A 90% Through hole FNW700R64-18 CC109141396
48V (36-75Vdc) 28V 25A 90% Through hole FNW700R64-18Z CC109165528

Output

Voltage

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

RoHS 6/6 Compliant Lead Free Z

Output

Current

Efficiency Connector

Type

Product codes Comcodes

Asia-Pacific Headquarters

Tel: + 65 6593 7211

World Wide Headquarters
Lineage Power Corporation

601 Shil oh Roa d, Pla no, TX 75074, USA
[phone]
(Outsi de U.S.A.: [phone])

www.lineagepower.com
e-mail: techs [e-mail]

Linea ge Power res erves th e right to make change s to the product(s ) o r informat ion contained her ein with out notic e. No liab ility is assum ed as a result of thei r use or

pplication . No righ ts under any patent accompany the sal e of any suc h product(s) or inf orm ation.

Linea ge Power D C-DC product s ar e prote cted unde r various pa tents. Informa tion on the se pa tents is available at www .lineagepo wer.com/paten ts.

2009 Line age Power Corporation, (Plan o, Texas) All Inte rn ation al Rights Reserved.

Europe, Middle-East and Africa Headquarters

Tel: + 49 898 780 672 80

India Headquarters

Tel: + 91 80 2841163 3

Document No: DS07-003 ver 1.48

PDF name: FNW700R.pdf