GE Industrial Solutions EBVW025A0B User Manual

GE

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output

Applications

 Distributed power architectures
 Intermediate bus voltage applications
 Servers and storage applications
 Networking equipment including Power over Ethernet

(PoE)

 Fan assemblies other systems requiring a tightly

regulated output voltage

Options

 Negative Remote On/Off logic (1=option code, factory

preferred)

 Auto-restart after fault shutdown (4=option code,

factory preferred)

 Remote Sense and Output Voltage Trim (9=option code)
 Base plate option (-H=option code)
 Passive Droop Load Sharing (-P=option code)

Description

The EBVW025A0B BARRACUDA™ series of dc-dc converters are a new generation of DC/DC power modules designed to support

9.6 -12V
converters, as well as other application requiring a tightly regulated output voltage. The EBVW025A0B series operate from an
input voltage range of 36 to 75V
output power from output voltages of 12.1V
control, synchronous rectification technology, and innovative packaging techniques to achieve efficiency reaching 95.4% peak at
12V
include on/off control, output overcurrent and over voltage protection, over temperature protection, input under and over voltage
lockout. Optional features include output voltage remote sense and trim from 6.0V
base plate for heat sink or cold wall applications.

The output is fully isolated from the input, allowing versatile polarity configurations and grounding connections. Built-in filtering for
both input and output minimizes the need for external filtering.

*

† CSA is a registered trademark of Canadian Standards Association.
‡ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.

§ This product is intended for integration into end-user equipment . All of the required procedures of end-use equipment should be followed.
¤ IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers, Incorporated.
** ISO is a registered trademark of the International Organization of Standards.

intermediate bus applications where multiple low voltages are subsequently generated using point of load (POL)

dc

, and provide up to 25A output current at output voltages from 6.0Vdc to 12.0Vdc, and 300W

dc

output. This leads to lower power dissipations such that for many applications a heat sink is not required. Standard features

dc

UL is a registered trademark of Underwriters Laboratories, Inc.

to 13.2Vdc in a DOSA standard eighth brick. The converter incorporates digital

dc

Features

 Compliant to RoHS EU Directive 2002/95/EC (-Z versions)
 Compliant to REACH Directive (EC) No 1907/2006

 Compatible with reflow pin/paste soldering process
 High and flat efficiency profile > 95.2% at 12V

80% output

 Wide Input voltage range: 36-75V
 Delivers up to 25A

output current

dc

 Output Voltage adjust: 6.0V

dc

to 13.2Vdc

dc

 Tightly regulated output voltage
 Low output ripple and noise
 No reverse current during prebias start-up or shut-down
 Industry standard, DOSA compliant, Eight brick:

58.4 mm x 22.8 mm x 11.3 mm
(2.30 in x 0.90 in x 0.44 in)

 Constant switching frequency
 Positive Remote On/Off logic
 Output over current/voltage protection
 Over temperature protection
 Wide operating temperature range (-40°C to 85°C)

†

 CAN/CSA

ANSI/UL*60950-1-2011, IEC 60950-1 (2nd edition); am1, and
VDE

 CE mark 2006/96/EC directives

C22.2 No. 60950-1-07, 2nd Edition + A1:2011 (MOD),

‡

(EN60950-1, 2nd Ed.) Licensed

§

 Meets the voltage and current requirements for ETSI 300-

132-2 and complies with and licensed for Basic insulation
rating per EN60950-1

 2250 Vdc Isolation tested in compliance with IEEE 802.3¤ PoE

standards

 ISO** 9001 and ISO14001 certified manufacturing facilities

to 13.2Vdc, passive droop paralleling, and

dc

, 40% load to

dc

April 15, 2013 ©2012 General Electric Company. All rights reserved. Page 1

GE

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W 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 device reliability.

Parameter Device Symbol Min Max Unit

Input Voltage*

Continuous V

Operating transient ≤ 100mS 100 Vdc
Operating Input transient slew rate, 50VIN to 75VIN

(Output may exceed regulation limits, no protective shutdowns
shall activate, C

Non- operating continuous V

Operating Ambient Temperature All T

(See Thermal Considerations section)

Storage Temperature All T

I/O Isolation Voltage (100% factory Hi-Pot tested) All

* Input over voltage protection will shutdown the output voltage, when the input voltage exceeds threshold level.

=220μF to C

O

O, max

)

- - 10 V/µs

IN

IN

A

stg

 

-0.3 75 Vdc

80 100 Vdc

-40 85 °C

-55 125 °C

2250 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 VIN 36 48 75 Vdc

Maximum Input Current
(VIN=0V to 75V, IO=I

Input No Load Current

(VIN = V

IN, nom

Input Stand-by Current

(VIN = V

IN, nom

External Input Capacitance All 100 - - μF

Inrush Transient All I2t - - 1 A2s

Input Terminal Ripple Current
(Measured at module input pin with maximum specified input

capacitance and ൏ 500uH inductance between voltage source
and input capacitance C
I

)

Omax

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

Input Ripple Rejection (120Hz) All - 50 - dB

)

O, max

, IO = 0, module enabled)

, module disabled)

=220uF, 5Hz to 20MHz, VIN= 48V, IO=

IN

= 48V, IO= I

IN

Omax

; see

All I

All I

All - 950 - mA

All - 24 - mA

I

IN,max

IN,No load

IN,stand-by

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 an integrated part
of sophisticated power architecture. To preserve maximum flexibility, internal fusing is not included, however, to achieve maximum
safety and system protection, always use an input line fuse. The safety agencies require a fast-acting fuse with a maximum rating
of 15 A (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.

- - 9 Adc

50 mA

25 mA

rms

p-p

April 15, 2013 ©2012 General Electric Company. All rights reserved. Page 2

GE

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Output Voltage Set-point
(V

, IO=12.5A, TA =25°C)

IN=VIN,nom

Output Voltage
(Over all operating input voltage(40V to 75V), resistive load, and
temperature conditions until end of life)

Output Voltage (VIN=36V, TA = 25ºC) All V

Output Regulation (V

Line (VIN=V

Load (IO=I

Line (VIN=V

Load (IO=I

IN, min

O, min

IN, min

O, min

to I

to I

=40V)

IN, min

to V

) All w/o -P

IN, max

) All w/o -P

O, max

to V

) -P Option

IN, max

), Intentional Droop -P Option 0.50 Vdc

O, max

All V

All w/o -P V

-P Option V

O, set

O

O

O

Temperature (TA = -40ºC to +85ºC) All

Output Ripple and Noise on nominal output

(VIN=V
10 μF aluminum and 220μF polymer capacitor across the

IN, nom

and IO=I

O, min

to I

, tested with a 1.0 μF ceramic,

O, max

load.)

RMS (5Hz to 20MHz bandwidth) All

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

External Output Capacitance All C

Output Current All I

Output Current Limit Inception All I

Efficiency (VIN=V

IO=100% I

O, max

IO=40% to 80% I

Switching Frequency (primary MOSFETs)
(Output Ripple 2X switching frequency)

, TA=25°C, VO= V

IN nom

)

O,set

All η 94.7 %

All η 95.2 %

O, max

f

O

o

O, lim

sw

Dynamic Load Response

dIO/dt=1A/10s; Vin=Vin,
ceramic and 3x 470μFpolymer capacitor and across the

; TA=25°C; (Tested with a 10μF

nom

load.)
Load Change from IO = 50% to 75% of I

Peak Deviation
Settling Time (V

<10% peak deviation)

O

Load Change from IO = 75% to 50% of I
Peak Deviation
Settling Time (V

<10% peak deviation)

O

O,max

O,max

:

All

:

All

V

pk

ts

V

pk

ts

11.97 12.00 12.03 V

11.76

11.60

10.8










220





 

0.2

0.2

0.5

2

70

200



12.24 V

12.40 V










10,000 μF

% V

% V
% V

% V

mV

mV

V

dc

dc

dc

dc

O, set

O, set

O, set

O, set

rms

pk-pk

0 25 Adc



30



A

dc

150 kHz







750

2

750

2







mV

mV

ms

ms

pk

pk

Isolation Specifications

Parameter Symbol Min Typ Max Unit

Isolation Capacitance C

Isolation Resistance R

iso

iso



10

1000

 



pF

MΩ

General Specifications

Parameter Device Symbol Typ Unit

Calculated Reliability Based upon Telcordia SR-332 Issue 2:
Method

I, Case 1, (I

=80%I

O

, TA=40°C, Airflow = 200 lfm), 90%

O, max

confidence

Weight – Open Frame 29.5 (1.04) g (oz.)

Weight – with Baseplate option 39.0 (1.38) g (oz.)

April 15, 2013 ©2012 General Electric Company. All rights reserved. Page 3

All MTBF 3,374,462 Hours

All FIT 296.3 109/Hours

GE

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W 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

Negative Logic: device code suffix “1”
Logic Low = module On, Logic High = module Off

Positive Logic: No device code suffix required
Logic Low = module Off, Logic High = module On

Logic Low Specification

On/Off Thresholds:

Remote On/Off Current – Logic Low All I

Turn-on Delay and Rise Time (IO=I

T
with Remote On/Off set to On (Enable with Vin); or operation of
Remote On/Off from Off to On with Vin already applied for at
least 150 milli-seconds (Enable with on/off).
* Increased T

Load Sharing Current Balance
(difference in output current across all modules with outputs in
parallel, no load to full load)

Prebias Output Load Performance:
Back Bias current sunk by output during start-up
Back Bias current sunk by output during shut-down

Remote Sense Range

Output Voltage Adjustment range

Output Overvoltage Protection All V

Overtemperature Protection

(See Feature Descriptions)

Input Undervoltage Lockout

Input Overvoltage Lockout

to V

IN, min

, Signal referenced to V

IN, max

terminal)

IN-

Logic Low Voltage All V

Logic High Voltage – (Typ = Open Collector) All V

Logic High maximum allowable leakage current

= 2.0V)

(V

on/off

All I

Maximum voltage allowed on On/Off pin All V

)

O, max

=Time until VO = 10% of V

delay

due to startup for parallel modules.

delay

T

=Time for VO to rise from 10% to 90% of V

rise

>5000uF, IO must be < 50% I
* Increased T

when Vo exists at startup for parallel

rise

from either application of Vin

O,set

during T

O, max

modules.

All w/o -P

All w/o-P

w/ -P

w/ -P

, For C

O,set

.

rise

O

All w/o -P T

w/ -P T

T

T

T

T

-P Option I

All

All w/ ”9”

option

All w/ ”9”

option

All T

Turn-on Threshold

Turn-off Threshold

Turn-off Threshold

Turn-on Threshold

on/off

on/off

on/off

on/off

on/off

delay, Enable with

Vin

delay, Enable with

on/off

delay, Enable with

delay, Enable with

on/off

rise

rise

diff

V

Sense

V

6.0

O, set

14.5

O,limit

ref

280

-0.3

2.0





 

 

 

 

 

 

 

 







 



140

310 μA

0.8 Vdc

14.5 Vdc

10 μA

14.5 Vdc

160 ms

40 ms

180* ms

40* ms

40 ms

300* ms

3 A

50
50

mA
mA

0.5 Vdc

13.2 Vdc

17.0 Vdc



°C



32 33.5

35 36 V



Vdc



76 79

85 86 V



Vdc

dc

dc

April 15, 2013 ©2012 General Electric Company. All rights reserved. Page 4

GE

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output

Characteristic Curves

The following figures provide typical characteristics for the EBVW025A0B (12V, 25A) at 25ºC. The figures are identical for either
positive or negative Remote On/Off logic.

(A)

i

INPUT CURRENT, I

INPUT VOLTAGE, VO (V) TIME, t (20 ms/div)

Figure 1. Typical Input Characteristic at Room
Temperature.

(V) (2V/div)

ON/OFF

(V) (5V/div) V

O

V

OUTPUT VOLTAGE On/Off VOLTAGE

Figure 4. Typical Start-Up Using Remote On/Off with Vin
applied, negative logic version shown.

EFFCIENCY, η (%)

OUTPUT CURRENT, IO (A) TIME, t (1 ms/div)

Figure 2. Typical Converter Efficiency Vs. Output current at
Room Temperature.

(V) (20V/div)

IN

(V) (5V/div) V

O

V

OUTPUT VOLTAGE INPUT VOLTAGE

TIME, t (40 ms/div) TIME, t (1 ms/div)

Figure 3. Typical Start-Up Using Vin with Remote On/Off
enabled, negative logic version shown.

(V) (500mV/div)

O

(A) (5A/div) V

O

I

OUTPUT CURRENT OUTPUT VOLTAGE

Figure 5. Typical Transient Response to Step change in Load
from 25% to 50% to 25% of Full Load at 48 Vdc Input and
C

=3x470uF Polymer.

O

(V) (500mV/div)

O

(A) (5A/div) V

O

OUTPUT CURRENT OUTPUT VOLTAGE

I

Figure 6. Typical Transient Response to Step Change in Load
from 50% to 75% to 50% of Full Load at 48 Vdc Input and
C

=3x470uF Polymer..

O

April 15, 2013 ©2012 General Electric Company. All rights reserved. Page 5

GE

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output

Characteristic Curves

(continued)

(V)

O

OUTPUT VOLTAGE, V

INPUT VOLTAGE, Vin (V) INPUT VOLTAGE, Vin (V)

Figure 7. Typical Output Voltage Regulation vs. Input
Voltage at Room Temperature.

(V)

O

OUTPUT VOLTAGE, V

OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A)

Figure 8. Typical Output Voltage Regulation vs. Output
Current at Room Temperature.

(V)

O

OUTPUT VOLTAGE, V

Figure 10. Typical Output Voltage Regulation vs. Input Voltage
for the –P Version at Room Temperature.

(V)

O

OUTPUT VOLTAGE, V

Figure 11. Typical Output Voltage Regulation vs. Output
Current for the –P Version at Room Temperature.

36 Vin

48 Vin

(V) (50mV/div)

O

V

OUTPUT VOLTAGE,

75 Vin

TIME, t (2s/div)

Figure 9. Typical Output Ripple and Noise at Room
Temperature I

o

= I

and and C

o,max

OMin

.

April 15, 2013 ©2012 General Electric Company. All rights reserved. Page 6

GE

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output

Test Configurations

Note: Measure input reflected-ripple current with a simulated
source inductance (LTEST) of 12 µH. Capacitor CS offsets
possible battery impedance. Measure current as shown above.

Figure 12. Input Reflected Ripple Current Test Setup.

Note: Use a 1.0 µF ceramic capacitor and a 10 µF aluminum or
tantalum capacitor. 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 13. Output Ripple and Noise Test Setup.

CONTA CT AND

DISTRIBUTION LOSSES

O1

V

I

I

SUPPL Y

V

CONTA CT

RESISTANCE

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 14. Output Voltage and Efficiency Test Setup.

V

I

(+)

I

(–)

V

I

O

LOAD

O2

Design Considerations

Input Source Impedance

The power module should be connected to a low
ac-impedance source. A highly inductive source impedance
can affect the stability of the power module. For the test
configuration in Figure 12, a 220μF electrolytic capacitor, C
(ESR<0.7 at 100kHz), mounted close to the power module
helps ensure the stability of the unit. If the module is subjected
to rapid on/off cycles, a 330μF input capacitor is required.
Consult the factory for further application guidelines.

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., CAN/CSA† C22.2 No.
60950-1-07, 2nd Edition + A1:2011 (MOD), ANSI/UL*60950-1­2011, IEC 60950-1 (2nd edition); am1, and VDE‡ (EN60950-1,
2nd.

If the input source is non-SELV (ELV or a hazardous voltage
greater than 60 Vdc and less than or equal to 75Vdc), for the
module’s output to be considered as meeting the requirements
for safety extra-low voltage (SELV), all of the following must be
true:

 The input source is to be provided with reinforced

insulation from any other hazardous voltages, including
the ac mains.

 One V

pin and one V

IN

the input and output pins are to be kept floating.

pin are to be grounded, or both

OUT

 The input pins of the module are not operator accessible.
 Another SELV reliability test is conducted on the whole

system (combination of supply source and subject
module), as required by the safety agencies, to verify that
under a single fault, hazardous voltages do not appear at
the module’s output.

Note: Do not ground either of the input pins of the module

without grounding one of the output pins. This may
allow a non-SELV voltage to appear between the
output pins and ground.

The power module has safety extra-low voltage (SELV) outputs
when all inputs are SELV.

The input to these units is to be provided with a maximum 15 A
fast-acting (or time-delay) fuse in the unearthed lead.

The power module has internally generated voltages
exceeding safety extra-low voltage. Consideration should be
taken to restrict operator accessibility.

,

in

April 15, 2013 ©2012 General Electric Company. All rights reserved. Page 7

GE

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output

Feature Descriptions

Overcurrent Protection

To provide protection in a fault output overload condition, the
module is equipped with internal current-limiting circuitry and
can endure current limiting continuously. If the overcurrent
condition causes the output voltage to fall greater than 4.0V
from V
The overcurrent latch is reset by either cycling the input power
or by toggling the on/off pin for one second. 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.

A factory configured auto-restart option (with overcurrent and
overvoltage auto-restart managed as a group) is also
available. An auto-restart feature continually attempts to
restore the operation until fault condition is cleared.

Remote On/Off

The module contains a standard on/off control circuit
reference to the V
on/off logic options are available. Positive logic remote on/off
turns the module on during a logic-high voltage on the ON/OFF
pin, and off during a logic low. Negative logic remote on/off
turns the module off during a logic high, and on during a logic
low. Negative logic, device code suffix "1," is the factory­preferred configuration. The On/Off circuit is powered from an
internal bias supply, derived from the input voltage terminals.
To turn the power module on and off, the user must supply a
switch to control the voltage between the On/Off terminal and
the V
or equivalent (see Figure 15). A logic low is V
The typical I
Terminal=0.3V) is 147µA. The switch should maintain a logic­low voltage while sinking 310µA. During a logic high, the
maximum V
maximum allowable leakage current of the switch at V

2.0V is 10µA. If using an external voltage source, the maximum
voltage V
terminal.

If not using the remote on/off feature, perform one of the
following to turn the unit on:

For negative logic, short ON/OFF pin to V
For positive logic: leave ON/OFF pin open.

Figure 15. Remote On/Off Implementation.

Output Overvoltage Protection

The module contains circuitry to detect and respond to output
overvoltage conditions. If the overvoltage condition causes the

, the module will shut down and remain latched off.

o,set

(-) terminal. Two factory configured remote

IN

(-) terminal (V

IN

on/off

on/off

on the pin is 14.5V with respect to the VIN(-)

on/off

). The switch can be an open collector

on/off

= -0.3V to 0.8V.

on/off

during a logic low (Vin=48V, On/Off

generated by the power module is 8.2V. The

(-).

IN

=

on/off

output voltage to rise above the limit in the Specifications
Table, the module will shut down and remain latched off. The
overvoltage latch is reset by either cycling the input power, or
by toggling the on/off pin for one second. If the output
overvoltage condition still exists when the module restarts, it
will shut down again. This operation will continue indefinitely
until the overvoltage condition is corrected.

A factory configured auto-restart option (with overcurrent and
overvoltage auto-restart managed as a group) is also
available. An auto-restart feature continually attempts to
restore the operation until fault condition is cleared.

Overtemperature Protection

These modules feature an overtemperature protection circuit
to safeguard against thermal damage. The circuit shuts down
the module when the maximum device reference temperature
is exceeded. The module will automatically restart once the
reference temperature cools by ~25°C.

Input Under/Over voltage Lockout

At input voltages above or below the input under/over voltage
lockout limits, module operation is disabled. The module will
begin to operate when the input voltage level changes to
within the under and overvoltage lockout limits.

Load Sharing

For higher power requirements, the EBVW025A0 power
module offers an optional feature for parallel operation (-P
Option code). This feature provides a precise forced output
voltage load regulation droop characteristic. The output set
point and droop slope are factory calibrated to insure optimum
matching of multiple modules’ load regulation characteristics.
To implement load sharing, the following requirements should
be followed:

 The V

(+) and V

OUT

connected together. Balance the trace resistance for each
module’s path to the output power planes, to insure best
load sharing and operating temperature balance.

must remain between 40Vdc and 75Vdc for droop sharing

 V

IN

to be functional.

 It is permissible to use a common Remote On/Off signal to

start all modules in parallel.

 These modules contain means to block reverse current flow

upon start-up, when output voltage is present from other
parallel modules, thus eliminating the requirement for
external output ORing devices. Modules with the –P option
will self determine the presence of voltage on the output
from other operating modules, and automatically increase
its Turn On delay, T

Specifications Table.
When parallel modules startup into a pre-biased output, e.g.
partially discharged output capacitance, the T
automatically increased, as specified in the
Feature Specifications Table, to insure graceful startup.

 Insure that the load is <50% I

all parallel modules have started (load full start > module

time max + T

T

delay

 If fault tolerance is desired in parallel applications, output

ORing devices should be used to prevent a single module

failure from collapsing the load bus.

(-) pins of all parallel modules must be

OUT

, as specified in the Feature

delay

is

rise

(for a single module) until

O,MAX

time).

rise

April 15, 2013 ©2012 General Electric Company. All rights reserved. Page 8

GE







E

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output

Feature Descriptions (continued)

Remote Sense (“9” Option Code)

Remote sense minimizes the effects of distribution losses by
regulating the voltage at the remote-sense connections (See
Figure 16). 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:

(+) – VO(–)] – [SENSE(+) – SENSE(–)]  0.5 V

[V

O

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
(Maximum rated power = Vo,set x Io,max).

SENSE(+)

SENSE(–)

V

I(+)

SUPPLY

CONTACT

RESISTANCE

I

I

VO(+)

V

I(-)

V

O(–)

Figure 16. Circuit Configuration for remote sense.

Trim, Output Voltage Programming

Trimming allows the output voltage set point to be increased
or decreased; this is accomplished by connecting an external
resistor between the TRIM pin and either the V

(-) pin.

V

O

VO(+)

R

trim-up

T/C1

R

EBVW020A0B

VO(-)

Figure 17. Circuit Configuration to Trim Output Voltage.

Connecting an external resistor (R
pin and the Vo(-) (or Sense(-)) pin decreases the output voltage
set point. To maintain set point accuracy, the trim resistor
tolerance should be ±1.0%.

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

511





R





downtrim





%



trim-down





22.10




IO

CONTACT AND

DISTRIBUTION LOSS

LOAD

) between the T/C1

trim-down

LOAD

(+) pin or the

O



Where





,




V



For example, to trim-down the output voltage of the module by
20% to 9.6V, Rtrim-down is calculated as follows:

511





downtrim





20



Connecting an external resistor (R
and the V

(+) (or Sense (+)) pin increases the output voltage set

O

point. The following equations determine the required external
resistor value to obtain a percentage output voltage change of
∆%:

V





R



uptrim




Where








V



For example, to trim-up the output voltage of the module by
5% to 12.6V, R







uptrim




is calculated is as follows:

trim-up

The voltage between the Vo(+) and Vo(–) terminals must not
exceed the minimum output overvoltage protection value
shown in the Feature Specifications table. This limit includes
any increase in voltage due to remote-sense compensation
and output voltage set-point adjustment trim.

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
(Maximum rated power = VO,set x IO,max).

Thermal Considerations

The power modules operate in a variety of thermal
environments and sufficient cooling should be provided to help
ensure reliable operation.

Thermal 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.



VV

desiredseto

,

seto








100%






20%



kkR

3.1522.10

) between the T/C1 pin

trim-up



%)100(11.5

5% 

511

5

511







%








,seto



%225.1





VV

,

setodesired



100%





,

seto



)5100(0.1211.5



5225.1







22.10






kkR

8.93822.10

April 15, 2013 ©2012 General Electric Company. All rights reserved. Page 9

GE

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output

Feature Descriptions (continued)

The thermal data presented here is based on physical
measurements taken in a wind tunnel, using automated
thermo-couple instrumentation to monitor key component
temperatures: FETs, diodes, control ICs, magnetic cores,
ceramic capacitors, opto-isolators, and module pwb
conductors, while controlling the ambient airflow rate and
temperature. For a given airflow and ambient temperature, the
module output power is increased, until one (or more) of the
components reaches its maximum derated operating
temperature, as defined in IPC-9592. This procedure is then
repeated for a different airflow or ambient temperature until a
family of module output derating curves is obtained.

Heat-dissipating components are mounted on the top side of
Heat-dissipating components are mounted on the top side of
the module. Heat is removed by conduction, convection and
radiation to the surrounding environment. Proper cooling can
be verified by measuring the thermal reference
(TH

). Peak temperature (THx) occurs at the position indicated in

x

Figure 18 and 19. For reliable operation this temperature
should not exceed the listed temperature threshold.

temperature

Figure 19. Location of the thermal reference temperature
TH

for Base Plate module. Do not exceed 110 °C.

2

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 temperature of the power modules is

, you can limit this temperature to a lower value for

TH

x

extremely high reliability.
Please refer to the Application Note “Thermal Characterization

Process For Open-Frame Board-Mounted Power Modules” for a
detailed discussion of thermal aspects including maximum
device temperatures.

Heat Transfer via Convection

Increased airflow over the module enhances the heat transfer
via convection. The thermal derating of figures 20 through 22
show the maximum output current that can be delivered by
each module in the indicated orientation without exceeding
the maximum TH
temperature (T
ft./min), 2 m/s (400 ft./min).

The use of Figures 20 is shown in the following example:

Example

What is the minimum airflow necessary for a EBVW025A0B
operating at V
maximum ambient temperature of 70 °C in transverse
orientation.

Solution:
Given: V
Determine required airflow (V) (Use Figure 20):
V = 200LFM or greater.

= 48V, IO = 14A, TA = 70 °C

in

temperature versus local ambient

x

) for air flows of, Natural Convection, 1 m/s (200

A

= 48 V, an output current of 14A, and a

I

(A)

O

Figure 18. Location of the thermal reference temperature

. Do not exceed 113 °C.

TH

1

OUTPUT CURRENT, I

LOCAL AMBIENT TEMPERATURE, TA (C)

Figure 20. Output Current Derating for the Open Frame
EBVW025A0B in the Transverse Orientation; Airflow Direction
from Vin(-) to Vin(+); Vin = 48V.

April 15, 2013 ©2012 General Electric Company. All rights reserved. Page 10

GE

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output

(A)

O

OUTPUT CURRENT, I

LOCAL AMBIENT TEMPERATURE, TA (C)

Figure 21. Output Current Derating for the Base Plate
EBVW025A0Bxx-H in the Transverse Orientation; Airflow
Direction from Vin(-) to Vin(+); Vin = 48V.

(A)

O

OUTPUT CURRENT, I

LOCAL AMBIENT TEMPERATURE, TA (C)

Figure 22. Output Current Derating for the Base Plate
EBVW025A0Bxx-H and 0.25” heat sink in the Transverse
Orientation; Airflow Airflow Direction from Vin(-) to Vin(+); Vin
= 48V.

Layout Considerations

The EBVW025 power module series are low profile in order to
be used in fine pitch system card architectures. As such,
component clearance between the bottom of the power
module and the mounting board is limited. Avoid placing
copper areas on the outer layer directly underneath the power
module. Also avoid placing via interconnects underneath the
power module.

For additional layout guide-lines, refer to FLT007A0Z Data
Sheet.

Through-Hole Lead-Free Soldering
Information

The RoHS-compliant, Z version, through-hole products use the
SAC (Sn/Ag/Cu) Pb-free solder and RoHS-compliant
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 RoHS­compliant 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 GE
representative for more details.

Reflow Lead-Free Soldering Information

The RoHS-compliant through-hole products can be processed
with the following paste-through-hole Pb or Pb-free reflow
process.

Max. sustain temperature :
245C (J-STD-020C Table 4-2: Packaging Thickness>=2.5
Volume > 2000
Peak temperature over 245C is not suggested due to the
potential reliability risk of components under continuous high­temperature.
Min. sustain duration above 217C : 90 seconds
Min. sustain duration above 180C : 150 seconds
Max. heat up rate: 3C/sec
Max. cool down rate: 4C/sec
In compliance with JEDEC J-STD-020C spec for 2 times reflow
requirement.

Pb-free Reflow Profile

BMP module will comply with J-STD-020 Rev. C
(Moisture/Reflow Sensitivity Classification for
Nonhermetic Solid State Surface Mount Devices) for both Pb­free solder profiles and MSL classification
procedures. BMP will comply with JEDEC J-STD-020C
specification for 3 times reflow requirement. The suggested
Pb-free solder paste is Sn/Ag/Cu (SAC). The recommended
linear reflow profile using Sn/Ag/Cu solder is shown in Figure

23.

217°C
200°C

150°C

Temp

25°C

Figure 23. Recommended linear reflow profile using
Sn/Ag/Cu solder.

MSL Rating

The EBVW025A0BA modules have a MSL rating of 2a.

Storage and Handling

3

mm

),

Peak Te mp. 240-245°C

Preheat t i me

100- 1 50 Sec.

Ramp up

max. 3°C/Sec

Time

Time Limited 90 Sec.

above 217 °C

max. 4°C/Sec

Ramp down

mm

/

April 15, 2013 ©2012 General Electric Company. All rights reserved. Page 11

GE

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output

The recommended storage environment and handling
procedures for moisture-sensitive surface mount packages is
detailed in J-STD-033 Rev. A (Handling, Packing, Shipping and
Use of Moisture/Reflow Sensitive Surface Mount Devices).
Moisture barrier bags (MBB) with desiccant are required for
MSL ratings of 2 or greater. These sealed packages should not
be broken until time of use. Once the original package is
broken, the floor life of the product at conditions of 30°C and
60% relative humidity varies according to the MSL rating (see
J-STD-025A). The shelf life for dry packed SMT packages will be
a minimum of 12 months from the bag seal date, when stored
at the following conditions: < 40° C, < 90% relative humidity.

EMC Considerations

The circuit and plots in Figure 24 shows a suggested
configuration to meet the conducted emission limits of

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 GE Board Mounted
Power Modules: Soldering and Cleaning Application Note
(AP01-056EPS).

EN55022 Class B. For further information on designing for EMC
compliance, please refer to the FLT007A0 data sheet.

Level [dBµV]

80

70

60

+

x

50

+

40

30

20

10

0

150k 300k 500k 1M 2M 3M 4M5M 7M 10M 30M

x xMES CE0916111952_fin QP

+ +MES CE0916111952_fin AV

MES CE0916111952_pre PK
MES CE0916111952_pre AV

Figure 24. EMC Considerations.

x

+

x

Frequency [Hz]

xx

x

++

+

April 15, 2013 ©2012 General Electric Company. All rights reserved. Page 12

GE

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output

Packaging Details

All versions of the EBVW025A0B are supplied as standard in
the plastic trays shown in Figure 25. Each tray contains a total
of 18 power modules. The trays are self-stacking and each
shipping box for the EBVW025A0B module contains 2 full trays
plus one empty hold-down tray giving a total number of 36
power modules.

Tray Specification

Material PET (1mm)
Max surface resistivity
Color Clear
Capacity 18 power modules
Min order quantity 36 pcs (1 box of 2 full trays

9

-1011/PET

10

+ 1 empty top tray)

Open Frame Module Tray Base Plate Module Tray

Figure 25. EBVW025 Packaging Tray

April 15, 2013 ©2012 General Electric Company. All rights reserved. Page 13

GE

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output

Mechanical Outline for EBVW025A0B 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

Top side label includes GE name, product designation and date code.

Bottom View

Pin Function
1 Vi(+)
2 ON/OFF
3 Vi(-)
4 Vo(-)
5†

SENSE(-)

6†

TRIM

7†

SENSE(+)

8 Vo(+)

*For optional pin lengths, see Table 2, Device Coding Scheme and Options

† - Optional Pins, when including “9” Option, See Table 2

April 15, 2013 ©2012 General Electric Company. All rights reserved. Page 14

GE

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output

Mechanical Outline for EBVW025A0B–H (Baseplate version) 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 Function
1 Vi(+)
2 ON/OFF
3 Vi(-)
4 Vo(-)
5†

SENSE(-)

6†

TRIM

7†

SENSE(+)

8 Vo(+)

*For optional pin lengths, see Table 2, Device Coding Scheme and Options

* Bottom side label includes GE name, product designation and date code.

† - Optional Pins, when including “9” Option, See Table 2

April 15, 2013 ©2012 General Electric Company. All rights reserved. Page 15

GE

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output

Recommended Pad Layouts

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.)

Through-Hole Modules

Pin

Number

1* VIN(+)
2* ON/OFF
3* VIN(-)
4* VOUT(-)
5†
6†
7†
8* VOUT(+)

† - Optional Pins

See Table 2

Pin

Name

SENSE(-)

TRIM

SENSE(+)

Hole and Pad diameter recommendations:

Pin Number Hole Dia mm [in] Pad Dia mm [in]
1, 2, 3, 5, 6, 7 1.6 [.063] 2.1 [.083]
4, 8 2.2 [.087] 3.2 [.126]

April 15, 2013 ©2012 General Electric Company. All rights reserved. Page 16

GE

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output

Ordering Information

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

Table 1. Device Codes

Product Codes Input Voltage Output Voltage Output Current Efficiency Connector Type Comcodes

EBVW025A0B41Z
EBVW025A0B641Z
EBVW025A0B841Z
EBVW025A0B41-HZ
EBVW025A0B641-HZ
EBVW025A0B9641-HZ
EBVW025A0B9641-PZ
EBVW025A0B9641-PHZ

Table 2. Device Options

48V (3675Vdc)
48V (3675Vdc)
48V (3675Vdc)
48V (3675Vdc)
48V (3675Vdc)
48V (3675Vdc)
48V (3675Vdc)
48V (3675Vdc)

12V 25A 94.7% Through hole 150024409
12V 25A 94.7% Through hole 150021953
12V 25A 94.7% Through hole 150023828
12V 25A 94.7% Through hole 150023485
12V 25A 94.7% Through hole 150029296
12V 25A 94.7% Through hole 150021954
12V 25A 94.7% Through hole 150028372
12V 25A 94.7% Through hole 150030861

Contact Us

For more information, call us at

USA/Canada:

[phone], or [phone]

Asia-Pacific:

+86.021.54279977*808

Europe, Middle-East and Africa:

+49.89.878067-280

India:
+91.80.28411633

April 15, 2013 ©2012 General Electric Company. All rights reserved. Version 1.2

www.ge.com/powerelectronics