GE
JRCW450R Orca* Series; DC-DC Converter Power Modules
36–75 Vdc Input; 32Vdc Output; 450W Output
Data Sheet
RoHS Compliant
Features
Compliant to RoHS II EU Directive 2011/65/EC (-Z versions)
Compliant to REACH Directive (EC) No 1907/2006
High power density: 166 W/in
3
Very high efficiency: >94% 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, 16.0V
dc
to 35.2V
dc
Wide operating case temperature range (-40°C to 100°C)
CE mark meets 2006/95/EC directives
§
ANSI/UL
#
60950-1, 2nd Ed. Recognized, CSA
†
C22.2 No. 60950-
1-07 Certified, and VDE
‡
0805-1 (EN60950-1, 2nd Ed.) Licensed
ISO
**
9001 and ISO 14001 certified manufacturing facilities
Compliant to IPC-9592A, Category 2, Class II
Applications
RF Power Amplifier
Wireless Networks
Switching Networks
Options
Output OCP/OVP auto restart
Shorter pins
Unthreaded heatsink holes
Tunable Loop for transient response optimization
Description
The JRCW450R Orca series of dc-dc converters are a new generation of isolated, very high efficiency DC/DC power modules
providing up to 450W output power 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
May 8, 2013
©2012 General Electric Company. All rights reserved.
Page 1
GE
JRCW450R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 32.0Vdc Output; 450W Output
Absolute Maximum Ratings
Data Sheet
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
Input Voltage
Continuous
Transient, operational (≤100 ms)
Operating Ambient Temperature
Operating Case Temperature
(See Thermal Considerations section, Figure 17)
Storage Temperature
I/O Isolation Voltage: Input to Case, Input to Output
Output to Case
All
All
All
All
All
All
All
V
IN
V
IN,trans
Ta
Tc
T
stg
-0.3
-0.3
-40
-40
-55
80
100
85
100
125
1500
500
V
dc
V
dc
°C
°C
°C
V
dc
V
dc
Device
Symbol
Min
Max
Unit
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.
Parameter
Operating Input Voltage
(see Figure 12 for V
IN MIN
when using trim-up feature)
Maximum Input Current
(V
IN
=36V to 75V, I
O
=I
O, max
)
Inrush Transient
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; V
IN
=0V to 75V, I
O
= I
Omax
;
see Figure 7)
Input Ripple Rejection (120Hz)
All
All
All
All
50
I
IN,max
I
2
t
14.0
2
20
A
dc
A
2
s
mA
p-p
dB
Device
All
Symbol
V
IN
Min
36
Typ
48
Max
75
Unit
V
dc
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.
May 8, 2013
©2012 General Electric Company. All rights reserved.
Page 2
GE
JRCW450R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 32.0Vdc Output; 450W Output
Electrical Specifications
(continued)
Parameter
Output Voltage Set-point
(V
IN
=V
IN,nom
, I
O
=I
O, max
, T
c
=25°C)
Output Voltage Set-Point Total Tolerance
(Over all operating input voltage, resistive load, and temperature
conditions until end of life)
Output Regulation
Line (V
IN
=V
IN, min
to V
IN, max
)
Load (I
O
=I
O, min
to I
O, max
)
Temperature (T
c
= -40ºC to +100ºC)
Output Ripple and Noise on nominal output
(V
IN
=V
IN, nom
and I
O
=I
O, min
to I
O, max
)
RMS (5Hz to 20MHz bandwidth)
Peak-to-Peak (5Hz to 20MHz bandwidth)
External Capacitance
(ESR > TBD mΩ)
1
Without the Tunable Loop
(ESR
MAX
= 80mΩ)
1
With the Tunable Loop
(ESR > 50
Output Power (V
o
=32V to 35.2V)
Output Current
Output Current Limit Inception (Constant current until V
o
<
V
trimMIN
,
duration <4s)
Output Short Circuit Current (V
O
≤
0.25V
dc
)
Hiccup mode
Efficiency
V
IN
=V
IN, nom
, T
c
=25°C I
O
=I
O, max ,
V
O
= V
O,set
Switching Frequency
mΩ)
2
Data Sheet
Device
All
All
Symbol
V
O, set
V
O
Min
31.5
31.0
Typ
32
Max
32.5
33.0
Unit
V
dc
V
dc
All
All
All
0.1
0.1
0.25
0.2
0.2
0.5
%V
o,set
%V
o,set
%V
o,set
All
All
All,
except -T
-T
-T
All
All
All
All
All
C
O
C
O,
C
O
P
O,max
I
o
I
O, lim
I
O, sc
η
f
sw
440
440
440
0
16.0
45
80
55
200
6500
470
10,000
mV
rms
mV
pk-pk
μF
μF
μF
W
A
dc
A
dc
A
pk
A
rms
%
kHz
450
14.0
20.0
60
5
94.0
94.4
175
Dynamic Load Response
(Io/t=1A/10s; V
in
=V
in
,nom; T
c
=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
2
%V
O, set
V
pk
Settling Time (Vo<10% peak deviation)
t
s
1.5
ms
Load Change from Io= 25% to 50% of Io,max:
%V
O, set
V
pk
2
Peak Deviation
t
s
1.5
ms
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 -20
O
C, use more than 3 of recommended minimum capacitors.
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
Isolation Capacitance
Isolation Resistance
Symbol
C
iso
R
iso
Min
10
Typ
15
Max
Unit
nF
MΩ
May 8, 2013
©2012 General Electric Company. All rights reserved.
Page 3
GE
JRCW450R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 32.0Vdc Output; 450W Output
General Specifications
Parameter
Calculated Reliability based upon Telcordia SR-332 Issue 3:
Method
I
Case 3 (I
O
=80%I
O, max
, T
A
=40°C, airflow = 200 lfm, 90%
confidence)
Weight
Device
All
All
Symbol
FIT
MTBF
Min
Data Sheet
Typ
214.5
4,661,316
76.4
2.69
Max
Unit
10
9
/Hours
Hours
g
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
Remote On/Off Signal Interface
(V
IN
=V
IN, min
to V
IN, max
; open collector or equivalent,
Signal referenced to V
IN-
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
Turn-On Delay and Rise Times
(Vin=V
in,nom
, I
O
=I
O, max
, 25C)
Case 1: T
delay
= Time until V
O
= 10% of V
O,set
from application of V
in
with Remote On/Off set to ON,
Case 2: T
delay
= Time until V
O
= 10% of V
O,set
from application of
Remote On/Off from Off to On with V
in
already applied for at least
one second.
T
rise
= time for V
O
to rise from 10% to 90% of V
O,set
.
Output Voltage Overshoot
(I
O
=80% of I
O, max
, T
A
=25°C)
Output Voltage Adjustment
(See Feature Descriptions):
Output Voltage Remote-sense Range
(only for No Trim or Trim down application )
Output Voltage Set-point Adjustment Range
(trim)
Output Overvoltage Protection
Over Temperature Protection
(See Feature Descriptions, Figure 17)
Input Under Voltage Lockout
Turn-on Threshold
Turn-off Threshold
Hysteresis
Input Over voltage Lockout
Turn-on Threshold
Turn-off Threshold
Hysteresis
All
All
All
All
All
All,
except -T
All with -T
T
delay
T
delay
T
rise
120
20
50
110
All
All
All
All
I
on/off
V
on/off
V
on/off
I
on/off
0
1.0
1.2
5
50
mA
V
dc
V
dc
μA
Device
Symbol
Min
Typ
Max
Unit
3
ms
ms
ms
ms
% V
O, set
All
All
All
All
V
sense
V
trim
V
O, limit
T
ref
V
IN, UVLO
__
16.0
37
__
---
110
2
35.2
40
%V
o,nom
V
dc
V
dc
°C
All
All
All
V
IN, OVLO
31
35
32
3
79.5
83
3
36
V
dc
V
dc
V
dc
V
dc
V
dc
V
dc
81
---
81
---
May 8, 2013
©2012 General Electric Company. All rights reserved.
Page 4
GE
JRCW450R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 32.0Vdc Output; 450W Output
Characteristic Curves
Data Sheet
The following figures provide typical characteristics for the JRCW450R (32V, 14A) at 25ºC. The figures are identical for either
positive or negative Remote On/Off logic.
OUTPUT CURRENT, I
o
(A)
On/Off VOLTAGE OUTPUTVOLTAGE
V
ON/OFF
(V) (5V/div)
V
O
(V) (10V/div)
EFFICIENCY (%)
TIME, t (40ms/div)
Figure 1. Converter Efficiency versus Output Current.
Figure 4. Typical Start-Up Using negative Remote On/Off;
C
o,ext
= 440µF.
INPUT VOLTAGE OUTPUT VOLTAGE
V
in
(V) (20V/div)
V
O
(V) (10V/div)
OUTPUT VOLTAGE
V
O
(V) (100mV/div)
TIME, t (1s/div)
TIME, t (40ms/div)
Figure 2. Typical Output Ripple and Noise at Room
Temperature and 48Vin; I
o
= I
o,max
; C
o,ext
= 440µF.
Figure 5. Typical Start-Up from V
IN
, on/off enabled prior to
V
IN
step; C
o,ext
= 470µF.
OUTPUT VOLTAGE
V
O
(V) (500mV/div)
OUTPUT CURRENT
I
O
(A) (5A/div)
TIME, t (1ms/div)
OUTPUT CURRENT
I
O
(A) (5A/div)
OUTPUT VOLTAGE
V
O
(V) (500mV/div)
TIME, t (1ms/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, C
o,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, C
o,ext
= 440µF.
May 8, 2013
©2012 General Electric Company. All rights reserved.
Page 5
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