GE Industrial Solutions EBVW025A0B User Manual

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)

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

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

UL is a registered trademark of Underwriters Laboratories, Inc.

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

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

 Output Voltage adjust: 6.0V

to 13.2Vdc

 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

, 40% load to

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, max

)

- - 10 V/µs

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=

= 48V, IO= I

Omax

; see

All I

All - 950 - mA

All - 24 - mA

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

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

=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

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

O, lim

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)

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

<10% peak deviation)

O,max

All

11.97 12.00 12.03 V

11.76

11.60

10.8

  



 

220



 

0.2

0.5

200



12.24 V

12.40 V

  



 

10,000 μF

% V

% V % V

% V

O, set

rms

pk-pk

0 25 Adc



150 kHz

 

750

 

Isolation Specifications

Parameter Symbol Min Typ Max Unit

Isolation Capacitance C

Isolation Resistance R

iso



1000

 



MΩ

General Specifications

Parameter Device Symbol Typ Unit

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

I, Case 1, (I

=80%I

, 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.)

All MTBF 3,374,462 Hours

All FIT 296.3 109/Hours

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)

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

=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

, For C

O,set

rise

All w/o -P T

w/ -P T

-P Option I

All

All w/ ”9”

option

All w/ ”9”

option

All T

Turn-on Threshold

Turn-off Threshold

Turn-on Threshold

on/off

delay, Enable with

Vin

delay, Enable with

on/off

delay, Enable with

on/off

rise

diff

Sense

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

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)

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

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)

(V) (5V/div) 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)

(A) (5A/div) V

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.

(V) (500mV/div)

(A) (5A/div) V

OUTPUT CURRENT OUTPUT VOLTAGE

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..

Data Sheet

EBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules

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

Characteristic Curves

(continued)

(V)

OUTPUT VOLTAGE, V

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

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

(V)

OUTPUT VOLTAGE, V

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

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

(V)

OUTPUT VOLTAGE, V

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

(V)

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)

OUTPUT VOLTAGE,

75 Vin

TIME, t (2s/div)

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

= I

and and C

o,max

OMin

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