GE
Data Sheet
December 3, 2015 ©2012 General Electric Company. All rights reserved.
QBVE067A0B41-HZ Barracuda*; DC-DC Converter Power Modules
40-60Vdc Input; 12.0Vdc, 67.0A, 800W Output
Features
Compliant to RoHS II EU “Directive 2011/65/EU (-Z versions)
Compliant to REACH Directive (EC) No 1907/2006
Can be processed with paste-through-hole Pb or Pb-free
reflow process
High and flat efficiency > 96.3% 50-90% load at Vin=50V
dc
Input voltage range: 40-60V
dc
Delivers up to 800W output power
Fully regulated 12V output voltage at Vin minimum
Low output ripple and noise
Industry standard, DOSA Compliant Quarter Brick:
58.4mm x 36.8mm x 12.7 mm
(2.30in x 1.45in x 0.50in)
Constant switching frequency
Remote On/Off control
Output over current/voltage protection
Over temperature protection
Wide operating temperature range: -40°C to 85°C,
continuous
UL
#
60950-1, 2nd Ed. Recognized, CSA† C22.2 No. 60950-1-
07 Certified, and VDE‡ (EN60950-1, 2nd Ed.) Licensed
2250V
dc
Isolation tested in compliance with IEEE 802.3
¤
PoE
standards
CE mark to 2006/96/EC directive
§
ISO** 9001 and ISO14001 certified manufacturing facilities
Base plate (-H=option code, always required)
Applications
Distributed power architectures
Intermediate bus voltage applications
Networking equipment
including Power over Ethernet (PoE)
Servers and storage applications
Supercomputers
Automatic Test Equipment
Options
Passive Droop Load Sharing (-P=option code)
Negative Remote On/Off logic (1=option code, factory
preferred)
Auto-restart after fault shutdown (4=option code, factory
preferred)
Pin trim
Description
The QBVE067A0B Barracuda series of dc-dc converters are a new generation of fully regulated DC/DC power modules designed to
support 12.0Vdc intermediate bus applications where multiple low voltages are subsequently generated using point of load (POL)
converters, as well as other application requiring a tightly regulated output voltage. The QBVE067A0B series operate from an input
voltage range of 40 to 60Vdc and provide up to 800W output power with a fully regulated output voltage of 12.0Vdc in an industry
standard, DOSA compliant quarter brick. The converter incorporates digital control, synchronous rectification technology, a fully
regulated control topology, and innovative packaging techniques to achieve efficiency exceeding 96.1% at 12.0Vdc output. This
leads to lower power dissipations such that for many applications a heat sink is not required. Standard features include a heat plate
to attach external heat sinks or contact a cold wall, on/off control, output overcurrent and over voltage protection, over
temperature protection, input under and over voltage lockout.
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.
* Trademark of General Electric Company
# UL is a registered trademark of Underwriters Laboratories, Inc.
† CSA is a registered trademark of Canadian Standards Association.
‡ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
¤ IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers, Incorporated.
§ This product is intended for integration into end-user equipment . All of the required procedures of end-use equipment should be followed.
** ISO is a registered trademark of the International Organization of Standards.
RoHS Compliant
GE Data Sheet
QBVE067A0B41-HZ Barracuda; DC-DC Converter Power Modules
40-60Vdc Input; 12.0Vdc, 67.0A, 800W Output
December 3, 2015 ©2012 General Electric Company. All rights reserved. Page 2
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 Symbol
Min
Max Unit
Input Voltage1
Continuous VIN -0.3 60 Vdc
Non- operating continuous VIN 64 Vdc
Operating Ambient Temperature TA -40 85 °C
Storage Temperature Tstg -40 125 °C
I/O Isolation Voltage2 (100% factory Hi-Pot tested)
2250 Vdc
1 Input over voltage protection will shutdown the output voltage when the input voltage exceeds threshold level.
2 Base plate is considered floating.
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 40 48/52/54 60 Vdc
Maximum Input Current IIN,max 22 Adc
(VIN=40V, IO=IO, max)
Input No Load Current All IIN,No load
195 mA
(VIN = VIN, nom, IO = 0, module enabled)
Input Stand-by Current All IIN,stand-by
30 mA
(VIN = VIN, nom, module disabled)
External Input Capacitance All 140 700 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)
5Hz to 20MHz, VIN= 48V, IO= IOmax
All 900 mArms
Input Ripple Rejection (120Hz) All 25 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 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 30A in the ungrounded input lead of the power supply (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.
GE Data Sheet
QBVE067A0B41-HZ Barracuda; DC-DC Converter Power Modules
40-60Vdc Input; 12.0Vdc, 67.0A, 800W Output
December 3, 2015 ©2012 General Electric Company. All rights reserved. Page 3
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.
Parameter Device
Symbol
Min
Typ Max Unit
Output Voltage Set-point (VIN=48V, IO=33.5A, TA =25°C) All VO, set 11.95 12.00 12.05 Vdc
Output Voltage
(Over all operating input voltage (40V to 60V), resistive load, and
tem
p
erature conditions until end of life) All w/o -P VO 11.64 12.36 Vdc
Output Voltage
(Over all operating input voltage (40V to 60V), resistive load, and
temperature conditions until end of life) -P Option VO 11.50 12.50 Vdc
Output Regulation [VIN,min = 40V]
Line (VIN= VIN, min to VIN, max) All w/o -P
0.2 % VO, set
Line (VIN= VIN, min to VIN, max) -P Option
0.5 % VO, set
Load (IO=IO, min to IO, max) All w/o -P
0.2 % VO, set
Load (IO=IO, min to IO, max), Intentional Droop -P Option 0.30 Vdc
Temperature (TA = -40ºC to +85ºC) All 2 % VO, set
Output Ripple and Noise, CO=750uF, ½ Ceramic, ½ PosCap
(VIN=VIN, nom and IO=IO, min to IO, max)
RMS (5Hz to 20MHz bandwidth) All 70 mVrms
Peak-to-Peak (5Hz to 20MHz bandwidth)
150 mVpk-pk
External Output Capacitance (Startup IO≤55A; mix<20% ceramic,
remainder electrolytic types) All CO, max 0 8,000 μF
Output Current All IO 0
67 A
Output Power All PO 0
800 W
Output Current Limit Inception All IO,lim 74
89 Adc
Efficiency
IO=100% IO, max, VO= VO,set All η 96.1 %
IO=50% IO, max to 90% IO, max , VO= VO,set All η 96.3 %
Switching Frequency (Primary FETs) All fsw 170 kHz
Dynamic Load Response
dIO/dt=1A/s; Vin=Vin,nom; TA=25°C;
(Tested with a 1.0μF ceramic, and 470uF capacitor at the load.)
Load Change from IO = 50% to 75% of IO,max:
Peak Deviation
Settling Time (VO <10% peak deviation)
All Vpk
ts
__
450
300
__
mVpk
s
Load Change from IO = 75% to 50% of IO,max:
Peak Deviation
Settling Time (VO <10% peak deviation)
All
Vpk
ts
__
450
300
__
mVpk
s
Isolation Specifications
Parameter Symbol Min Typ Max Unit
Isolation Capacitance Ciso 4000 pF
Isolation Resistance Riso 10 MΩ
General Specifications
Parameter Device Symbol Typ Unit
Calculated Reliability Based upon Telcordia SR-332 Issue 3:
Method I, Case 3, (IO=80%IO, max, Tc=40°C, Airflow = 200 LFM), 90%
confidence
All MTBF 9,785,467 Hours
All FIT 102.2 109/Hours
Weight – with Base plate 71.0 (2.50) g (oz.)
GE Data Sheet
QBVE067A0B41-HZ Barracuda; DC-DC Converter Power Modules
40-60Vdc Input; 12.0Vdc, 67.0A, 800W Output
December 3, 2015 ©2012 General Electric Company. All rights reserved. Page 4
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=VIN, min to VIN, max , Signal referenced to VIN- terminal)
Negative Logic: device code suffix “1”
Lo
g
ic Low = module On, Lo
g
ic Hi
g
h = 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 (Vin =56V) All Ion/off 200 μA
Logic Low Voltage All Von/off -0.3 0.8 Vdc
Logic High Voltage – (Typ = Open Collector) All Von/off 2.4 14.5 Vdc
Logic High maximum allowable leakage current
(Von/off = 2.4V) All Ion/off 130 μA
Maximum voltage allowed on On/Off pin All Von/off 14.5 Vdc
Turn-On Delay and Rise Times (IO=IO, max)
Tdelay=Time until VO = 10% of VO,set from either application of Vin
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 30 milli-seconds (Enable with on/off).
* Increased Tdelay due to startup for parallel modules.
All w/o “P’
option
Tdelay, Enable with Vin
30 ms
Tdelay, Enable with
on/off
5 ms
All w/ “P’
option
Tdelay, Enable with Vin
40* ms
Tdelay,
Enable with
on/off
15* ms
Trise=Time for VO to rise from 10% to 90% of VO,set, * Increased
Trise when pre-bias Vo exists at startup for parallel modules.
All w/o “P”
option Trise 15 ms
All w/ “P’
option Trise 40* ms
Output Overvoltage Protection All VO,limit 13.0 16.0 Vdc
Overtemperature Protection (See Feature Descriptions) All Tref 135 °C
Input Undervoltage Lockout
Turn-on Threshold All 37.5 40 Vdc
Turn-off Threshold All 35.5 37.5 Vdc
Hysteresis All
2 Vdc
Input Overvoltage Lockout
Turn-off Threshold All 66 Vdc
Turn-on Threshold All 61 Vdc
GE
Data Sheet
QBVE067A0B41-HZ Barracuda; DC-DC Converter Power Modules
40-60Vdc Input; 12.0Vdc, 67.0A, 800W Output
December 3, 2015 ©2012 General Electric Company. All rights reserved. Page 5
Characteristic Curves, 12.0V
dc
Output
The following figures provide typical characteristics for the QBVE067A0B (12.0V, 67A) at 25ºC. The figures are identical for either
positive or negative Remote On/Off logic.
EFFCIENCY, η (%)
LOSS (W)
OUTPUT CURRENT, I
O
(A) OUTPUT CURRENT, I
O
(A)
Figure 1.
Typical Converter Efficiency vs. Output Current.
Figure 2. Typical Converter Loss
vs. Output Current.
OUTPUT VOLTAGE,
V
O
(V) (100mV/div)
OUTPUT CURRENT OUTPUT VOLTAGE
I
O
(A) (20A/div) V
O
(V) (500mV/div)
TIME, t (5
s/div) TIME, t (500 μs/div)
Figure 3. Typical Output Ripple and Noise, I
o
= I
o,max
C
O
=750µF.
Figure 4. T
y
pical Transient
Response to 1.0A/µs Step Change
in Load from 50% to 75% to 50% of Full Load, C
O
=470µF and
50 V
dc
Input.
IN
P
U
T
VOL
T
AG
E
OU
TP
U
T
VOL
T
AG
E
V
IN
(V) (10V/div) V
O
(V) (2V/div)
On/Off VOLTAGE OUTPUT VOLTAGE
V
ON/OFF
(V) (2V/div) V
O
(V) (2V/div)
TIME, t (5 ms/div) TIME, t (2 ms/div)
Figure 5. Typical Start-Up Using Vin with Remote On/Off
enabled, negative logic version shown, I
o
= I
o,max
.
Figure 6. Typical Start-Up Using Remote On/Off with Vin
applied, negative logic version shown I
o
= I
o,max
.
GE
Data Sheet
QBVE067A0B41-HZ Barracuda; DC-DC Converter Power Modules
40-60Vdc Input; 12.0Vdc, 67.0A, 800W Output
December 3, 2015 ©2012 General Electric Company. All rights reserved. Page 6
Characteristic Curves, 12.0V
dc
Output (continued)
The following figures provide typical characteristics for the QBVE067A0B (12.0V, 67A) at 25ºC. The figures are identical for either
positive or negative Remote On/Off logic.
OUTPUT VOLTAGE, V
O
(V)
OUTPUT VOLTAGE, V
O
(V)
INPUT VOLTAGE, V
in
(V) OUTPUT CURRENT, I
O
(A)
Figure 7. Typical Output Voltage Regulation vs. Input
Voltage.
Figure
8. Typical Output Voltage Regulation vs. Output
Current.
OUTPUT VOLTAGE, V
O
(V)
OUTPUT VOLTAGE, V
O
(V)
INPUT VOLTAGE, V
in
(V) OUTPUT CURRENT, I
O
(A)
Figure 9. Typical Output Voltage Regulation vs. Input
Voltage for the –P Version.
Figure 10. Typical Output Voltage Regulation vs. Output
Current for the –P Version.
GE Data Sheet
QBVE067A0B41-HZ Barracuda; DC-DC Converter Power Modules
40-60Vdc Input; 12.0Vdc, 67.0A, 800W Output
December 3, 2015 ©2012 General Electric Company. All rights reserved. Page 7
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 11. Input Reflected Ripple Current Test Setup.
Note: Use a 1.0 µF ceramic capacitor, a 10 µF aluminum or
tantalum capacitor and a 750 polymer 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 12. 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 13. Output Voltage and Efficiency Test Setup.
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 11, a 660μF electrolytic capacitor, Cin,
(ESR<0.7 at 100kHz), mounted close to the power module
helps ensure the stability of the unit.
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 2nd Ed., CSA C22.2 No. 60950-1 2nd Ed., and
VDE0805-1 EN60950-1 2nd Ed.
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 VIN pin and one VOUT pin are to be grounded, or
both the input and output pins are to be kept floating.
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
30A fast-acting (or time-delay) fuse in the ungrounded input
lead.
LOAD
CONT ACT AND
SUPPLY
I
I
CONTACT
V
I
(+)
V
I
(–)
V
O1
DISTRIBUTION LO SSES
RESISTANCE
I
O
V
O2
GE Data Sheet
QBVE067A0B41-HZ Barracuda; DC-DC Converter Power Modules
40-60Vdc Input; 12.0Vdc, 67.0A, 800W Output
December 3, 2015 ©2012 General Electric Company. All rights reserved. Page 8
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 3.0V from Vo,set, the module will shut down and
remain latched off. 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 VIN(-) terminal. Two factory configured
remote 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 factory-preferred 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 VIN(-)
terminal (Von/off). The switch can be an open collector or
equivalent (see Figure 14). A logic low is Von/off = -0.3V to 0.8V.
The typical Ion/off during a logic low (Vin=50V, On/Off
Terminal=0.3V) is 147µA. The switch should maintain a logic-
low voltage while sinking 200µA. During a logic high, the
maximum Von/off generated by the power module is 8.2V. The
maximum allowable leakage current of the switch at Von/off =
2.4V is 130µA. If using an external voltage source, the
maximum voltage Von/off on the pin is 14.5V with respect to
the VIN(-) 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 VIN(-).
For positive logic: leave ON/OFF pin open.
Figure 14. 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 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 QBVE067A0B-P 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 VOUT(+) and VOUT(-) pins of all parallel modules must be
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.
VIN must remain between 45Vdc and 56Vdc for droop
sharing 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 may automatically increase the Turn On delay, Tdelay,
as specified in the Feature Specifications Table, if output
voltage is present on the output bus at startup.
When parallel modules startup into a pre-biased output,
e.g. partially discharged output capacitance, the Trise is
automatically increased, as specified in the Feature
Specifications Table, to insure graceful startup.
Insure that the total load is <50% IO,MAX (for a single module)
until all parallel modules have started (load full start >
module Tdelay time max + Trise time).
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.
GE
Data Sheet
QBVE067A0B41-HZ Barracuda; DC-DC Converter Power Modules
40-60Vdc Input; 12.0Vdc, 67.0A, 800W Output
December 3, 2015 ©2012 General Electric Company. All rights reserved. Page 9
Feature Descriptions (continued)
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. 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
temperature (TH1).
Figure 15. Location of the thermal reference temperature
TH1
for base plate module.
Peak temperature occurs at the position indicated in Figure
15. For reliable operation, this temperature should not
exceed TH1=100°C at any airflow condition. For extremely
high reliability you can limit this temperature to a lower
value. The output power of the module should not exceed
the rated power for the module as listed in the Ordering
Information table.
Heat Transfer via Convection
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-9592B. This procedure is then
repeated for a different airflow or ambient temperature until
a family of module output derating curves is obtained.
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.
Figure 16. Thermal Test Setup .
Increased airflow over the module enhances the heat
transfer via convection. The thermal derating of figure 17-
22 shows the maximum output current that can be
delivered by each module in the indicated orientation
without exceeding the maximum TH1 temperature versus
local ambient temperature (T
A
) for several air flow
conditions.
GE
Data Sheet
QBVE067A0B41-HZ Barracuda; DC-DC Converter Power Modules
40-60Vdc Input; 12.0Vdc, 67.0A, 800W Output
December 3, 2015 ©2012 General Electric Company. All rights reserved. Page 10
Thermal Considerations (continued)
OUTPUT CURRENT, I
O
(A)
OUTPUT CURRENT, I
O
(A)
LOCAL AMBIENT TEMPERATURE, T
A
(C)
LOCAL AMBIENT TEMPERATURE, T
A
(C)
Figure 17. Output Current Derating for the Base Plate
QBVE067A0Bxx-H in the Transverse Orientation; Airflow
Direction from Vin(-) to Vin(+); Vin = 50V.
Figure 18. Output Current Derating for the Base plate
QBVE067A0Bxx-H in the Longitudinal Airflow Direction from
Vout to Vin; Vin = 50V.
OUTPUT CURRENT, I
O
(A)
OUTPUT CURRENT, I
O
(A)
LOCAL AMBIENT TEMPERATURE, T
A
(C)
LOCAL AMBIENT TEMPERATURE, T
A
(C)
Figure 19. Output Current Derating for the Base plate
QBVE067A0Bxx-H+0.5” Heat Sink in the Transverse Orientation;
Airflow Direction from Vin(-) to Vin(+); Vin = 50V.
Figure 20. Output Current Derating for the Base plate
QBVE067A0Bxx-H+0.5” Heat Sink in the Longitudinal Airflow
Direction from Vout to Vin; Vin = 50V.
OUTPUT CURRENT, I
O
(A)
OUTPUT CURRENT, I
O
(A)
LOCAL AMBIENT TEMPERATURE, T
A
(C)
LOCAL AMBIENT TEMPERATURE, T
A
(C)
Figure 21. Output Current Derating for the Base plate
QBVE067A0Bxx-H+1.0” Heat Sink in the Transverse Orientation;
Airflow Direction from Vin(-) to Vin(+); Vin = 50V.
Figure 22. Output Current Derating for the Base plate
QBVE067A0Bxx-H+1.0” Heat Sink in the Longitudinal Airflow
Direction from Vout to Vin; Vin = 50V.
GE Data Sheet
QBVE067A0B41-HZ Barracuda; DC-DC Converter Power Modules
40-60Vdc Input; 12.0Vdc, 67.0A, 800W Output
December 3, 2015 ©2012 General Electric Company. All rights reserved. Page 11
Layout Considerations
The QBVE067A0B 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 FLT012A0Z 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 module is designed to be processed
through single or dual wave soldering machines. The pins
have a RoHS-compliant, pure tin finish that is compatible
with both Pb and Pb-free wave soldering processes. A
maximum preheat rate of 3C/s is suggested. The wave
preheat process should be such that the temperature of the
power module board is kept below 210C. For Pb solder, the
recommended pot temperature is 260C, while the Pb-free
solder pot is 270C max.
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 :
245C (J-STD-020C Table 4-2: Packaging Thickness>=2.5mm
/ Volume > 2000mm3),
Peak temperature over 245C is not suggested due to the
potential reliability risk of components under continuous
high-temperature.
Min. sustain duration above 217C : 90 seconds
Min. sustain duration above 180C : 150 seconds
Max. heat up rate: 3C/sec
Max. cool down rate: 4C/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. D
(Moisture/Reflow Sensitivity Classification for
Nonhermetic Solid State Surface Mount Devices) for both
Pb-free 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.
Figure 23. Recommended linear reflow profile using
Sn/Ag/Cu solder.
MSL Rating
The QBVE067A0B modules have a MSL rating as indicated in
the Device Codes table, last page of this document.
Storage and Handling
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-060A). 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.
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 (AN04-001).
If additional information is needed, please consult with your
GE Sales representative for more details
GE Data Sheet
QBVE067A0B41-HZ Barracuda; DC-DC Converter Power Modules
40-60Vdc Input; 12.0Vdc, 67.0A, 800W Output
December 3, 2015 ©2012 General Electric Company. All rights reserved. Page 12
EMC Considerations
The circuit and plots in Figure 24 shows a suggested
configuration to meet the conducted emission limits of
EN55022 Class A. For further information on designing for
EMC compliance, please refer to the FLTR100V20Z data
sheet.
C4 = 330uf 100V Nichicon VR series
C5 & C6 = 3 x 0.01uf High Voltage caps
C7= 1uf 100V 1210
C8 = 220uf 100V KME Nichicon VR series
Quasi-peak Reading
Average Reading
Figure 24. EMC Considerations
GE
Data Sheet
QBVE067A0B41-HZ Barracuda; DC-DC Converter Power Modules
40-60Vdc Input; 12.0Vdc, 67.0A, 800W Output
December 3, 2015 ©2012 General Electric Company. All rights reserved. Page 13
Mechanical Outline for QBVE067A0B41-HZ (Base plate) 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 VIEWS
*Side label includes product designation, and data code
** Standard pin tail length. Optional pin tail lengths shown in Table 2, Device Options.
BOTTOM VIEW***
Pin
Numbe
r
Pin
Name
1* VIN(+)
2* ON/OFF
3* VIN(-)
4* VOUT(-)
8* VOUT(+)
***Bottom side label includes GE name, product designation, and data code
GE Data Sheet
QBVE067A0B41-HZ Barracuda; DC-DC Converter Power Modules
40-60Vdc Input; 12.0Vdc, 67.0A, 800W Output
December 3, 2015 ©2012 General Electric Company. All rights reserved. Page 14
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.]
Pin
Number
Pin
Name
1* VIN(+)
2* ON/OFF
3* VIN(-)
4* VOUT(-)
8* VOUT(+)
Hole and Pad diameter recommendations:
Pin Number Hole Dia (mm) Pad Dia (mm)
1, 2, 3 1.6 2.1
4, 8 2.2 3.2
Packaging Details
All versions of the QBVE067A0Bare supplied as standard in the
plastic trays shown in Figure 25.
Tray Specification
Material PET (1mm)
Max surface resistivity 109 -1011/PET
Color Clear
Capacity 12 power modules
Min order quantity 24 pcs (1 box of 2 full trays
+ 1 empty top tray)
Each tray contains a total of 12 power modules. The trays are
self-stacking and each shipping box for the QBVE067A0B
module contains 2 full trays plus one empty hold-down tray
giving a total number of 24 power modules.
Base Plate Module Tray
Figure 25. QBVE067A0B Packaging Tray
GE Data Sheet
QBVE067A0B41-HZ Barracuda; DC-DC Converter Power Modules
40-60Vdc Input; 12.0Vdc, 67.0A, 800W Output
Contact Us
For more information, call us at
USA/Canada:
+1 877 546 3243, or +1 972 244 9288
Asia-Pacific:
+86.021.54279977*808
Europe, Middle-East and Africa:
+49.89.878067-280
www.ge.com/powerelectronics
GE Critical Power reserves the right to make changes to the product(s) or information contained herein without notice, and 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.
December 3, 2015 ©2012 General Electric Company. All rights reserved. Version 1.22
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
Curren
t
Efficiency Connector
Type
MSL
Rating Comcodes
QBVE067A0B41-HZ 48/52/54V (4060Vdc) 12V 67A 96.1% Through hole
2a 150040687
QBVE067A0B641-HZ 48/52/54V (4060Vdc) 12V 67A 96.1% Through hole
2a 150048509
QBVE067A0B841-HZ 48/52/54V (4060Vdc) 12V 67A 96.1% Through hole
2a 150047226
QBVE067A0B41-PHZ 48/52/54V (4060Vdc) 12V 67A 96.1% Through hole
2a 150044444
Table 2. Device Options.
Characteristic Definition
Form Factor Q Q = Quarter Brick
Family Designator BV BV = BARRACUDA Series
Input Voltage E E = 40V- 60V
Output Power 067A0 067A0 =67.0 Rated Output Current
Output Voltage B B =12.0V nominal
Omit = Default Pin Length shown in Mechanical Outline Figures
88 = Pin Length: 2.79 mm ± 0.25mm, (0.110 in. ± 0.010 in.)
66 = Pin Length: 3.68 mm ± 0.25mm, (0.145 in. ± 0.010 in.)
Omit = Latching Mode
44 = Auto-restart following shutdown (Overcurrent/Overvoltage)
Omit = Positive Logic
11 = Negative Logic
Omit = Standard open Frame Module
XY XY
= Customer Specific Modified Code, Omit for Standard Code
Load Share PP = Active Droop Output for use in parallel applications
Heat Plate H H = Heat plate, for use with heat sinks or cold-walls (must be ordered)
RoHS Z Z = RoHS 6/6 Compliant, Lead free
Options
Character and Position
Ratings
Pin Length
Action following
Protective Shutdown
On/Off Logic
Customer Specific
