JNCW016A0R Orca* Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28Vdc Output; 16Adc Output
RoHS Compliant
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
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
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
Supports repetitive loads (AC+DC) up to 2 kHz
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
Wide operating case temperature range (-40°C to 100°C)
CE mark meets 2006/95/EC directives
9001 and ISO 14001 certified manufacturing facilities
Compliant to IPC-9592A, Category 2, Class II
3
to 35.2Vdc
dc
§
‡
0805-1 (EN60950-1, 2nd Ed.) Licensed
Description
The JNCW016A0R 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 halfbrick 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 capability, 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
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 V
Transient, operational (≤100 ms) All V
Operating Ambient Temperature All Ta
Operating Case Temperature
(See Thermal Considerations section, Figure 17)
Storage Temperature All T
I/O Isolation Voltage: Input to Case, Input to Output All
Output to Case All
All Tc -40 100 °C
IN,trans
IN
stg
-0.3 80 Vdc
-0.3 100 Vdc
-40 85 °C
-55 125 °C
1500 Vdc
500 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 V
Maximum Input Current
(VIN=36V to 75V, IO=I
Inrush Transient All I2t 2 A2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; V
see Figure 7)
Input Ripple Rejection (120Hz) All 50 dB
when using trim-up feature)
IN MIN
) All I
O, max
=0V to 75V, IO= I
IN
Omax
;
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.
Output Voltage Set-Point Total Tolerance
(Over all operating input voltage, resistive load, and temperature
All V
O
conditions until end of life)
Output Regulation
Line (VIN=V
Load (IO=I
IN, min
O, min
to V
) All
IN, max
to I
) All
O, max
Temperature (Tc = -40ºC to +100ºC) All
Output Ripple and Noise on nominal output
(VIN=V
IN, nom
and IO=I
O, min
to I
)
O, max
RMS (5Hz to 20MHz bandwidth) All
Peak-to-Peak (5Hz to 20MHz bandwidth) All
,
All,
except -T
-T C
All I
All I
C
O,
O,max
o
O, lim
O, sc
O
O
All η 93.0 93.5
sw
External Capacitance
Without the Tunable Loop1 -T C
With the Tunable Loop
2
Output Power (Vo=28V to 35.2V) All P
Output Current All I
Output Current Limit Inception (Constant current until Vo<V
trimMIN
duration <4s)
Output Short Circuit Current (VO≤ 0.25Vdc)
Hiccup mode 5 A
Efficiency
V
IN=VIN, nom
, Tc=25°C IO=I
O, max , VO
= V
O,set
Switching Frequency f
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
Settling Time (Vo<10% peak deviation)
Load Change from Io= 25% to 50% of Io,max: Peak Deviation
Settling Time (Vo<10% peak deviation)
(Io/t=2A/10s; Vin=Vin,nom; Tc=25°C; Tested with a 880 μF
aluminum and a 10 µF ceramic capacitor across the load.)
Load Change from Io= 0% to 75% of Io,max: Peak Deviation
Settling Time (Vo<10% peak deviation)
Load Change from Io= 75% to 0% of Io,max: Peak Deviation
Settling Time (Vo<10% peak deviation)
1
Use a minimum 2 x 220uF output capacitor. Recommended capacitor is Nichicon PM series, 220uF/35V. If the ambient temperature at module
startup is between 0
startup below -20
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.
O
C and -10OC, use a minimum 3 x 220uF capacitors, and between -10OC and -20OC, use a minimum 4 x 220uF capacitors. For
Calculated Reliability based upon Telcordia SR-332 Issue 3:
Method
I Case 3 (I
=80%I
O
, TA=40°C, airflow = 200 lfm, 90%
O, max
All
confidence)
Weight All
FIT 214.5 10
MTBF 4,661,316 Hours
76.4
2.69 oz.
9
/Hours
g
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
Signal referenced to 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
Turn-On Delay and Rise Times
(Vin=V
Case 1: T
with Remote On/Off set to ON,
Case 2: T
Remote On/Off from Off to On with V
one second.
T
Output Voltage Overshoot
(IO=80% of I
Output Voltage Adjustment
(See Feature Descriptions):
Output Voltage Remote-sense Range
(onl
Output Voltage Set-point Adjustment Range (trim) All V
Output Overvoltage Protection
Over Temperature Protection All T
(See Feature Descriptions, Figure 17)
Input Under Voltage Lockout V
Input Over voltage Lockout V
to V
IN, min
; open collector or equivalent,
IN, max
terminal)
IN-
Logic Low - Remote On/Off Current All I
Logic Low - On/Off Voltage All V
Logic High Voltage – (Typ = Open Collector) All V
Logic High maximum allowable leakage current All I
JNCW016A0R 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 JNCW016A0R (28V, 16A) at 25ºC. The figures are identical for either
positive or negative Remote On/Off logic.
E
LTA
(V) (10V/div)
O
UTPUTV
EFFICIENCY (%)
OUTPUT CURRENT, Io (A) TIME, t (20ms/div)
Figure 1. Converter Efficiency versus Output Current.
(V) (50mV/div)
O
V
OUTPUT VOLTAGE
TIME, t (1s/div)
Figure 2. Typical Output Ripple and Noise at Room
= I
; C
Temperature and 48Vin; I
o
o,max
= 440µF.
o,ext
E
LTA
V
(V) (5V/div) V
n
ON/OFF
V
Figure 4. Typical Start-Up Using negative Remote On/Off;
= 440µF.
C
o,ext
E
LTA
(V) (10V/div)
O
UTPUT V
E
LTA
(V) (20V/div) V
in
INPUT V
V
Figure 5. Typical Start-Up
step; C
= 470µF.
o,ext
TIME, t (40ms/div)
from VIN, on/off enabled prior to V
IN
(V) (500mV/div)
(V) (200mV/div)
O
(A) (5A/div) V
O
I
OUTPUT CURRENT OUTPUT VOLTAGE
TIME, t (1ms/div)
Figure 3. Dynamic Load Change Transient Response from
50% to 75% to 50% of Full Load at Room Temperature and
48 Vin; 0.1A/uS, C