JRCW016A0R41TZ [LINEAGEPOWER]
36â75 Vdc Input; 28Vdc Output; 16Adc Output;
| 型号： | JRCW016A0R41TZ |
| 厂家： | 
LINEAGE POWER CORPORATION |
| 描述： | 36â75 Vdc Input; 28Vdc Output; 16Adc Output |
| 文件： | 总15页 (文件大小：1007K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Data Sheet
GE
JRCW016A0R Orca* Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28Vdc Output; 16Adc Output
Features
RoHS Compliant
.
.
.
.
.
.
.
Compliant to RoHS II EU Directive 2011/65/EC (-Z versions)
Compliant to REACH Directive (EC) No 1907/2006
High power density: 166 W/in3
Very high efficiency: >93.5% Typ at Full Load
Industry standard half-brick pin-out
Low output ripple and noise
Industry standard, DOSA compliant half-brick footprint
57.7mm x 60.7mm x 12.7mm
(2.27” x 2.39” x 0.5”)
.
.
.
.
.
.
.
.
.
.
.
Remote Sense
2:1 input voltage range
Single tightly regulated output
Constant switching frequency
Constant Current Overcurrent limit
Latch after short circuit fault shutdown
Over temperature protection auto restart
Output voltage adjustment trim, 16.0Vdc to 35.2Vdc
Wide operating case temperature range (-40°C to 100°C)
CE mark meets 2006/95/EC directives§
Applications
.
.
.
RF Power Amplifier
Wireless Networks
Switching Networks
ANSI/UL# 60950-1, 2nd Ed. Recognized, CSA† C22.2 No. 60950-
1-07 Certified, and VDE‡ 0805-1 (EN60950-1, 2nd Ed.) Licensed
Options
.
ISO** 9001 and ISO 14001 certified manufacturing facilities
Compliant to IPC-9592A, Category 2, Class II
.
.
.
.
Output OCP/OVP auto restart
.
Shorter pins
Unthreaded heatsink holes
Tunable Loop* for transient response optimization
Description
The JRCW016A0R Orca series of dc-dc converters are a new generation of isolated, very high efficiency DC/DC power modules
providing up to up to 16Adc output current at a nominal output voltage of 28Vdc in an industry standard, DOSA compliant half-
brick size 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 module contains an optional new feature, the
Tunable Loop, that allows the user to optimize the dynamic response of the converter to match the load with reduced amount of
output capacitance, leading to savings on cost and PWB area.
*
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.
#
†
‡
** ISO is a registered trademark of the International Organization of Standards
November 20, 2013
©2012 General Electric Company. All rights reserved.
Page 1
Data Sheet
GE
JRCW016A0R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28.0Vdc Output; 16Adc 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
All
VIN
-0.3
-0.3
80
Vdc
Vdc
Transient, operational (≤100 ms)
VIN,trans
100
Operating Ambient Temperature
All
All
All
Ta
Tc
-40
-40
-55
85
°C
°C
°C
Operating Case Temperature
(See Thermal Considerations section, Figure 17)
100
125
Storage Temperature
Tstg
I/O Isolation Voltage (Current trip point=5mA):
Input to Case, Input to Output
Output to Case
All
All
1500
500
Vdc
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
(see Figure 12 for VIN MIN when using trim-up feature)
All
VIN
36
48
75
Vdc
Maximum Input Current
(VIN=36V to 75V, IO=IO, max
)
All
All
IIN,max
I2t
14.0
2
Adc
Inrush Transient
A2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; VIN=0V to 75V, IO= IOmax
see Figure 7)
;
All
All
20
mAp-p
dB
Input Ripple Rejection (120Hz)
50
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 time-delay or fast-acting fuse with a maximum
rating of 25 A in the ungrounded input connection (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.
November 20, 2013
©2012 General Electric Company. All rights reserved.
Page 2
Data Sheet
GE
JRCW016A0R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28.0Vdc Output; 16Adc Output
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Typ
Max
Unit
Output Voltage Set-point
(VIN=VIN,nom, IO=IO, max, Tc =25°C)
All
VO, set
27.5
28
28.5
Vdc
Output Voltage Set-Point Total Tolerance
(Over all operating input voltage, resistive load, and temperature
conditions until end of life)
All
VO
27.0
29.0
Vdc
Output Regulation
Line (VIN=VIN, min to VIN, max
Load (IO=IO, min to IO, max
)
All
All
All
0.1
0.1
0.2
0.2
0.5
%Vo,set
%Vo,set
%Vo,set
)
Temperature (Tc = -40ºC to +100ºC)
0.25
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max
)
RMS (5Hz to 20MHz bandwidth)
All
All
45
80
55
mVrms
Peak-to-Peak (5Hz to 20MHz bandwidth)
200
mVpk-pk
All,
except -T
-T
External Capacitance (ESR > 2.5 mΩ)1
CO
440
6500
μF
Without the Tunable Loop (ESRMAX = 80mΩ)1
With the Tunable Loop (ESR > 50 mΩ)2
CO,
CO
440
440
470
μF
μF
-T
All
All
10,000
Output Power (Vo=28V to 35.2V)
Output Current
PO,max
Io
IO, lim
IO, sc
450
W
0
16.0
Adc
Output Current Limit Inception (Constant current until Vo<VtrimMIN
duration <4s)
,
All
All
17.0
21.0
30
Adc
Output Short Circuit Current (VO≤ 0.25Vdc
)
Arms
Efficiency
VIN=VIN, nom, Tc=25°C IO=IO, max , VO= VO,set
All
η
93.0
93.5
175
%
Switching Frequency
fsw
kHz
Dynamic Load Response
(Io/t=1A/10s; Vin=Vin,nom; Tc=25°C; Tested with a 470 μF
aluminum and a 10 µF ceramic capacitor across the load.)
Load Change from Io= 50% to 75% of Io,max:
Peak Deviation
All
3
Vpk
ts
2
1.5
%VO, set
ms
Settling Time (Vo<10% peak deviation)
Load Change from Io= 25% to 50% of Io,max:
Peak Deviation
Settling Time (Vo<10% peak deviation)
1 Note: use a minimum 2 x 220uF output capacitor. Recommended capacitor is Nichicon CD series, 220uF/35V. If the ambient temperature is less
than -20OC, use more than 3 of recommended minimum capacitors.
3
Vpk
ts
2
1.5
%VO, set
ms
2 External capacitors may require using the new Tunable Loop feature to ensure that the module is stable as well as getting the best transient
response. See the Tunable Loop section for details.
Isolation Specifications
Parameter
Symbol
Min
Typ
Max
Unit
Isolation Capacitance
Ciso
15
nF
November 20, 2013
©2012 General Electric Company. All rights reserved.
Page 3
Data Sheet
GE
JRCW016A0R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28.0Vdc Output; 16Adc Output
General Specifications
Parameter
Device
Symbol
FIT
Min
Typ
214.5
Max
Unit
109/Hours
Hours
g
Calculated Reliability based upon Telcordia SR-332 Issue 3:
Method I Case 3 (IO=80%IO, max, TA=40°C, airflow = 200 lfm, 90%
confidence)
All
MTBF
4,661,316
76.4
68
84
Weight
All
2.40
2.69
2.96
oz.
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 ; open collector or equivalent,
Signal referenced to VIN- terminal)
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 - Remote On/Off Current
Logic Low - On/Off Voltage
Logic High Voltage – (Typ = Open Collector)
Logic High maximum allowable leakage current
All
All
All
All
Ion/off
Von/off
Von/off
Ion/off
0
1.0
1.2
5
mA
Vdc
Vdc
μA
50
Turn-On Delay and Rise Times
(Vin=Vin,nom, IO=IO, max, 25C)
Case 1: Tdelay = Time until VO = 10% of VO,set from application of Vin
with Remote On/Off set to ON,
All
Tdelay
120
ms
ms
Case 2: Tdelay = Time until VO = 10% of VO,set from application of
Remote On/Off from Off to On with Vin already applied for at least
one second.
All
All
Tdelay
20
30
Trise = time for VO to rise from 10% of VO,set to 90% of VO,set
.
Trise
ms
Output Voltage Overshoot
(IO=80% of IO, max, TA=25°C)
3
% VO, set
Output Voltage Adjustment
(See Feature Descriptions):
Output Voltage Remote-sense Range
(only for No Trim or Trim down application )
__
__
All
Vsense
2
%Vo,nom
Output Voltage Set-point Adjustment Range (trim)
All
All
Vtrim
16.0
37
---
35.2
39
Vdc
Vdc
Output Overvoltage Protection
VO, limit
Over Temperature Protection
(See Feature Descriptions, Figure 17)
All
Tref
105
110
120
°C
Input Under Voltage Lockout
VIN, UVLO
Turn-on Threshold
Turn-off Threshold
Hysteresis
All
All
All
35
32
3
36
Vdc
Vdc
Vdc
31
Input Over voltage Lockout
VIN, OVLO
Turn-on Threshold
Turn-off Threshold
Hysteresis
All
All
All
79.5
83
3
81
---
Vdc
Vdc
Vdc
81
---
November 20, 2013
©2012 General Electric Company. All rights reserved.
Page 4
Data Sheet
GE
JRCW016A0R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28.0Vdc Output; 16Adc Output
Characteristic Curves
The following figures provide typical characteristics for the JRCW016A0R (28V, 16A) at 25ºC. The figures are identical for either
positive or negative Remote On/Off logic.
OUTPUT CURRENT, Io (A)
TIME, t (20ms/div)
Figure 1. Converter Efficiency versus Output Current.
Figure 4. Typical Start-Up Using negative Remote On/Off;
Co,ext = 440µF.
TIME, t (40ms/div)
TIME, t (1s/div)
Figure 2. Typical Output Ripple and Noise at Room
Temperature and 48Vin; Io = Io,max; Co,ext = 440µF.
Figure 5. Typical Start-Up from VIN, on/off enabled prior to VIN
step; Co,ext = 470µF.
TIME, t (2ms/div)
TIME, t (2ms/div)
Figure 3. Dynamic Load Change Transient Response from
25% to 50% to 25% of Full Load at Room Temperature and
48 Vin; 0.1A/uS, Co,ext = 440µF.
Figure 6. Dynamic Load Change Transient Response from 50
% to 75% to 50% of Full Load at Room Temperature and 48
Vin; 0.1A/uS, Co,ext = 440µF.
November 20, 2013
©2012 General Electric Company. All rights reserved.
Page 5
Data Sheet
GE
JRCW016A0R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28.0Vdc Output; 16Adc Output
Test Configurations
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 7, a 470μF Low ESR aluminum
capacitor, CIN , mounted close to the power module helps
ensure the stability of the unit. Consult the factory for further
application guidelines.
Output Capacitance
The JRCW016A0R power module requires a minimum output
capacitance of 440µF Low ESR aluminum capacitor, Cout to
ensure stable operation over the full range of load and line
conditions, see Figure 8. If the ambient temperature is under -
20C, it is required to use at least 3 pcs of minimum capacitors
in parallel. In general, the process of determining the
acceptable values of output capacitance and ESR is complex
and is load-dependent.
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.
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., UL 60950-1, 2nd Ed.,
CSA No. 60950-1 2nd Ed., and VDE0805-1 EN60950-1, 2nd Ed.
Note: Use a Cout (470 µF Low ESR aluminum or tantalum capacitor
typical), a 0.1 µF ceramic capacitor and a 10 µF ceramic capacitor,
and Scope measurement should be made using a BNC socket.
Position the load between 51 mm and 76 mm (2 in. and 3 in.) from the
module.
For end products connected to –48V dc, or –60Vdc nominal
DC MAINS (i.e. central office dc battery plant), no further fault
testing is required. *Note: -60V dc nominal battery plants are
not available in the U.S. or Canada.
Figure 8. Output Ripple and Noise Test Setup.
For all input voltages, other than DC MAINS, where the input
voltage is less than 60V dc, if the input meets all of 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.
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.
.
One pole of the input and one pole of the output are to
be grounded, or both circuits are to be kept floating, to
maintain the output voltage to ground voltage within ELV
or SELV limits. However, SELV will not be maintained if
VI(+) and VO(+) are grounded simultaneously.
Figure 9. Output Voltage and Efficiency Test Setup.
November 20, 2013
©2012 General Electric Company. All rights reserved.
Page 6
Data Sheet
GE
JRCW016A0R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28.0Vdc Output; 16Adc Output
Safety Considerations (continued)
For all input sources, other than DC MAINS, where the input
voltage is between 60 and 75V dc (Classified as 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 Vi pin and one Vo pin are to be reliably earthed, or
both the input and output pins are to be kept floating.
Figure 10. Circuit configuration for using Remote On/Off
Implementation.
Another SELV reliability test is conducted on the whole
system, as required by the safety agencies, on the
combination of supply source and the subject module to
verify that under a single fault, hazardous voltages do
not appear at the module’s output.
Overcurrent Protection
To provide protection in a fault output overload condition, the
module is equipped with internal current limiting protection
circuitry, and can endure continuous overcurrent by providing
constant current output, for up to 4 seconds, as long as the
output voltage is greater than VtrimMIN. If the load resistance is
to low to support VtrimMIN in an overcurrent condition or a short
circuit load condition exists, the module will shutdown
immediately.
All flammable materials used in the manufacturing of these
modules are rated 94V-0, or tested to the UL60950 A.2 for
reduced thickness.
A latching shutdown option is standard. Following shutdown,
the module will remain off until the module is reset by either
cycling the input power or by toggling the on/off pin for one
second.
The input to these units is to be provided with a maximum 25
A fast-acting or time-delay fuse in the ungrounded input
conection.
An auto-restart option (4) is also available in a case where an
auto recovery is required. If overcurrent greater than 19A
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.
Feature Description
Remote On/Off
Two remote on/off options are available. Positive logic 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,
device code suffix “1”, turns the module off during a logic high
and on during a logic low.
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.
To turn the power module on and off, the user must supply a
switch (open collector or equivalent) to control the voltage
(Von/off) between the ON/OFF terminal and the VIN(-) terminal
(see Figure 10). Logic low is 0V ≤ Von/off ≤ 1.2V. The maximum
Ion/off during a logic low is 1mA, the switch should be maintain
a logic low level whilst sinking this current.
During a logic high, the typical maximum Von/off generated by
the module is 5V, and the maximum allowable leakage
current at Von/off = 5V is 50μA.
An auto-restart option (4) is also available in a case where an
auto recovery is required.
If not using the remote on/off feature:
For positive logic, leave the ON/OFF pin open.
For negative logic, short the ON/OFF pin to VIN(-).
November 20, 2013
©2012 General Electric Company. All rights reserved.
Page 7
Data Sheet
GE
JRCW016A0R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28.0Vdc Output; 16Adc Output
Feature Description (continued)
35
Remote sense
Upper Trim Limit
30
25
20
15
Remote sense minimizes the effects of distribution losses by
regulating the voltage at the remote-sense connections (see
Figure 11). 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.:
Lower Trim Limit
[Vo(+)–Vo(-)] – [SENSE(+) – SENSE(-)] 2% of Vo,nom
35
40
45
50
55
Vin (V)
60
65
70
75
The voltage between the Vo(+) and Vo(-) terminals must not
exceed the minimum output overvoltage shut-down value
indicated in the Feature Specifications table. This limit
includes any increase in voltage due to remote-sense
compensation and output voltage set-point adjustment (trim).
See Figure 11. 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.
Figure 12. Output Voltage Trim Limits vs. Input Voltage.
Trim Down – Decrease Output Voltage
With an external resistor (Radj_down) between the TRIM and
SENSE(-) pins, the output voltage set point (Vo,adj) decreases
(see Figure 13). The following equation determines the
required external-resistor value to obtain a percentage output
voltage change of %.
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.
For output voltages: VO,nom = 28V
Without –T Option
With –T Option
100
1000
Radj _ down
11 k
Radj _ down
2 k
%
%
Where,
V
o, nom Vdesired
%
100
Vo, nom
Vdesired = Desired output voltage set point (V).
Figure 11. Effective Circuit Configuration for Single-Module
Remote-Sense Operation Output Voltage.
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
TRIM pin. The trim resistor should be positioned close to the
module. Certain restrictions apply to the input voltage lower
limit when trimming the output voltage to the maximum. See
Figure 12 for the allowed input to output range when using
trim. If not using the trim down feature, leave the TRIM pin
open.
Figure 13. Circuit Configuration to Decrease Output
Voltage.
Trim Up – Increase Output Voltage
With an external resistor (Radj_up) connected between the
SENSE(+) and TRIM pins, the output voltage set point (Vo,adj
increases (see Figure 14).
)
The following equation determines the required external-
resistor value to obtain a percentage output voltage change
of %.
November 20, 2013
©2012 General Electric Company. All rights reserved.
Page 8
Data Sheet
GE
JRCW016A0R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28.0Vdc Output; 16Adc Output
To trim up the output of a nominal 28V module, without –T
option, to 30.8V
Feature Description (continued)
For output voltages: VO,nom = 28V
Without –T Option
30.8 28
%
100 10.0%
V
(100 %)
(100 (2 %)
%
28
O ,nom
R
adj
_
up
k
1.225 %
28 (100 10 ) (100 (2 10 )
R
adj _ up
With –T Option
1.225 10
10
27122
Radj _ up
15.12 k
R
adj_up = 239kΩ
%
Where,
Active Voltage Programming
V
desired Vo, nom
%
100
Vo, nom
For both the JRCW016A0Rx and JRCW016A0Rx-T, a Digital-
Analog converter (DAC), capable of both sourcing and sinking
current, can be used to actively set the output voltage, as
shown in Figure 15. The value of RG will be dependent on the
voltage step and range of the DAC and the desired values for
trim-up and trim-down ∆%. Please contact your GE technical
representative to obtain more details on the selection for this
resistor.
Vdesired = Desired output voltage set point (V).
Figure 14. Circuit Configuration to Increase Output Voltage.
The voltage between the Vo(+) and Vo(-) terminals must not
exceed the minimum output overvoltage shut-down value
indicated in the Feature Specifications table. This limit
includes any increase in voltage due to remote- sense
compensation and output voltage set-point adjustment (trim).
See Figure 11.
Figure 15. Circuit Configuration to Actively Adjust the
Output Voltage.
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.
Tunable Loop
The JRCW016A0Rx-T modules have a new feature that
optimizes transient response of the module called Tunable
Loop.
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.
External capacitors are usually added to the output of the
module for two reasons: to reduce output ripple and noise
and to reduce output voltage deviations from the steady-
state value in the presence of dynamic load current changes.
Adding external capacitance however affects the voltage
control loop of the module, typically causing the loop to slow
down with sluggish response. Larger values of external
capacitance could also cause the module to become
unstable.
Examples:
To trim down the output of a nominal 28V module, without –T
option, to 16.8V
The Tunable Loop allows the user to externally adjust the
voltage control loop to match the filter network connected to
the output of the module. The Tunable Loop is implemented
by connecting a series R-C between the SENSE(+) and TRIM
pins of the module, as shown in Fig. 16. This R-C allows the
user to externally adjust the voltage loop feedback
compensation of the module.
28 16.8
%
100 40%
28
100
R
adj _ down
2 0.5k
40
November 20, 2013
©2012 General Electric Company. All rights reserved.
Page 9
Data Sheet
GE
JRCW016A0R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28.0Vdc Output; 16Adc Output
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.
Figure 16. Circuit diagram showing connection of RTUNE and
CTUNE to tune the control loop of the module.
Table 1 shows the recommended values of RTUNE and CTUNE for
different values of ceramic output capacitors up to 8000 F
that might be needed for an
application to meet output ripple and noise requirements.
Table 1. General recommended values of of RTUNE and CTUNE
for Vout=28V and various external ceramic capacitor
combinations.
Cout(µF)
ESR (mΩ)
RTUNE
1100
60
2200
30
4400
15
6600
10
8800
7.5
12k
4.7k
1.8k
820
390
CTUNE
220nF
220nF
220nF
220nF
220nF
Heat-dissipating components inside the unit are thermally
coupled to the case. Heat is removed by conduction,
convection, and radiation to the surrounding environment.
Please contact your GE technical representative to obtain
more details of this feature as well as for guidelines on how to
select the right value of external R-C to tune the module for
best transient performance and stable operation for other
output capacitance values.
For reliable operation this temperature should not
exceed 100ºC at either TREF 1 or TREF 2 for applications using
forced convection airflow or cold plate applications. 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 TREF temperature of the power
modules is discussed above, you can limit this temperature to
a lower value for extremely high reliability.
Over Temperature Protection
The JRCW016A0R module provides a non-latching over
temperature protection. A temperature sensor monitors the
operating temperature of the converter. If the reference
temperature, TREF 1, (see Figure 17) exceeds a threshold of 115
ºC (typical), the converter will shut down and disable the
output. When the base plate temperature has decreased by
approximately 20 ºC the converter will automatically restart.
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.
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 (TREF
)
occurs at the position indicated in Figure 17.
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.
Figure 17. Case (TREF ) Temperature Measurement Location
(top view).
November 20, 2013
©2012 General Electric Company. All rights reserved.
Page 10
Data Sheet
GE
JRCW016A0R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28.0Vdc Output; 16Adc Output
Thermal Derating
Thermal derating is presented for two different applications: 1)
Figure 18, the JRCW016A0R module is thermally coupled to a
cold plate inside a sealed clamshell chassis, without any
internal air circulation; and 2) Figure 19,20 and 21, the
JRCW016A0R module is mounted in a traditional open chassis
or cards with forced air flow. In application 1, the module is
cooled entirely by conduction of heat from the module
primarily through the top surface to a cold plate, 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 base plate and/or
attached heatsink.
Ambient Temperature, TA (oC)
Figure 20. Derating Output Current vs. local Ambient
temperature and Airflow, 0.5” Heatsink, Vin=48V, airflow
from Vi(-) to Vi(+).
Cold plate (inside surface) temperature (ºC)
Figure 18. Output Power Derating for JRCW016A0R in
Conduction cooling (cold plate) applications; Ta <70ºC
adjacent to module; VIN = VIN,NOM
Ambient Temperature, TA (oC)
Figure 21. Derating Output Current vs. local Ambient
temperature and Airflow, 1.0” Heatsink, Vin=48V, airflow
from Vi(-) to Vi(+).
Layout Considerations
The JRCW016A0R power module series are constructed using
a single PWB with integral base plate; as such, component
clearance between the bottom of the power module and the
mounting (Host) board is limited. Avoid placing copper areas
on the outer layer directly underneath the power module.
Post Solder Cleaning and Drying Considerations
Post solder cleaning is usually the final circuit-board assembly
process prior to electrical board testing. The result of
inadequate cleaning and drying can affect both the reliability
of a power module and the testability of the finished
circuit-board assembly. For guidance on appropriate
soldering, cleaning and drying procedures, refer to GE Board
Mounted Power Modules: Soldering and Cleaning Application
Note.
Ambient Temperature, TA (oC)
Figure 19. Derating Output Current vs. local Ambient
temperature and Airflow, No Heatsink, Vin=48V, airflow
from Vi(-) to Vi(+).
November 20, 2013
©2012 General Electric Company. All rights reserved.
Page 11
Data Sheet
GE
JRCW016A0R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28.0Vdc Output; 16Adc Output
suggested. The wave preheat process should be such that
Through-Hole Lead-Free Soldering
Information
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. The
JRCW016A0R can not 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.
The RoHS-compliant through-hole products use the SAC
(Sn/Ag/Cu) Pb-free solder and RoHS-compliant components.
They are designed to be processed through single or dual
wave soldering machines. The pins have an RoHS-compliant
finish that is compatible with both Pb and Pb-free wave
soldering processes. A maximum preheat rate of 3C/s is
November 20, 2013
©2012 General Electric Company. All rights reserved.
Page 12
Data Sheet
GE
JRCW016A0R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28.0Vdc Output; 16Adc 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 side label includes GE name, product designation, and data code.
TOP VIEW*
SIDE VIEW**
BOTTOM VIEW
Pin Description
1
2
3
4
5
6
7
8
9
Vin (+)
On/Off
Baseplate
Vin (–)
Vout (–)
Sense (-)
Trim
Sense (+)
Vout (+)
November 20, 2013
©2012 General Electric Company. All rights reserved.
Page 13
Data Sheet
GE
JRCW016A0R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28.0Vdc Output; 16Adc 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. ]
November 20, 2013
©2012 General Electric Company. All rights reserved.
Page 14
Data Sheet
GE
JRCW016A0R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28.0Vdc Output; 16Adc Output
Ordering Information
Please contact your GE Sales Representative for pricing, availability and optional features.
Table 2. Device Code
Output
Voltage
28V
28V
28V
28V
28V
28V
28V
Output
Current
16A
16A
16A
16A
16A
16A
16A
Connector
Type
Input Voltage
Efficiency
Product codes
Comcodes
48V (36-75Vdc)
48V (36-75Vdc)
48V (36-75Vdc)
48V (36-75Vdc)
48V (36-75Vdc)
48V (36-75Vdc)
48V (36-75Vdc)
93.5%
93.5%
93.5%
93.5%
93.5%
93.5%
93.5%
Through hole
Through hole
Through hole
Through hole
Through hole
Through hole
Through hole
JRCW016A0R41Z
CC109168943
CC109168968
150020445
JRCW016A0R41-18Z
JRCW016A0R64-18Z
JRCW016A0R64-35Z
JRCW016A0R641-18Z
JRCW016A0R41-TZ
JRCW016A0R41-18TZ
150034268
CC109169371
CC109168951
CC109168976
Table 3. Device Options
Contact Us
For more information, call us at
USA/Canada:
+1 888 546 3243, or +1 972 244 9288
Asia-Pacific:
+86.021.54279977*808
Europe, Middle-East and Africa:
+49.89.878067-280
India:
+91.80.28411633
www.ge.com/powerelectronics
November 20, 2013
©2012 General Electric Company. All rights reserved.
Version 1.26
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