GE Industrial Solutions JNC350R Series - Manual (Page 3)

Data Sheet
August 9, 2010
JNC350R Power Modules; DC-DC Converters
18 – 36 Vdc Input; 28Vdc Output; 350W Output
LINEAGE POWER 3
Electrical Specifications (continued)
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set-point
(V
IN
=V
IN,nom
, I
O
=I
O, max
, T
c
=25°C)
All
V
O, set
27.5 28 28.5 V
dc
Output Voltage 1
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
All
V
O
27.15  28.85 V
dc
Output Regulation
Line (V
IN
=V
IN, min
to V
IN, max
) All  0.1 0.2 %V
o,set
Load (I
O
=I
O, min
to I
O, max
) 1 All  0.1 0.2 %V
o,set
Temperature (T
c
= -40ºC to +100ºC) All  0.5 1.5 %V
o,set
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) All  45 55 mV
rms
Peak-to-Peak (5Hz to 20MHz bandwidth) 2 All  80 200 mV
pk-pk
External Capacitance (ESR > 50 mΩ) 3 All, except
-T
C
O
440 6500 μF
Without the Tunable Loop™ (ESR
MAX
= 80mΩ) 3 -T C
O
440 470 μF
With the Tunable Loop™ (ESR > 50 mΩ) 4 -T C
O
440 8,000 μF
Output Current 2 All I
o
0 12.5 A
dc
Output Current Limit Inception All I
O, lim
13.1  17.5 A
dc
Output Short Circuit Current (V
O
≤ 0.25V
dc
) All I
O, sc
30 A
rms
Efficiency
V
IN
=V
IN, nom
, T
c
=25°C I
O
=I
O, max ,
V
O
= V
O,set
All η  91  %
Switching Frequency f
sw
 300  kHz
Dynamic Load Response
( Io/t=1A/10s; 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
Settling Time (Vo<10% peak deviation)
All V
pk
t
s

 2
1.5

 %V
O, set
ms
Load Change from Io= 25% to 50% of Io,max:
Peak Deviation
Settling Time (Vo<10% peak deviation)
V
pk
t
s


2
1.5


%V
O, set
ms
1. For Vin ≤ 19V, and case temperatures ≥ 85°C, output voltage regulation is relaxed to -2 . 5%V
o,set
.
2. When operating at output current between 0A
dc
and 1A
dc
, output ripple may exceed maximum pk-pk limits.
3. Use a minimum 2 x 220uF output capacitor. Recommended capacitor is Nichicon CD series, 220uF/35V. If the ambient
temperature is less than 0°C, use 3x of the minimum C
O
.
4. 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 C
iso
 15  nF
Isolation Resistance R
iso
10   MΩ
General Specifications
Parameter Device Symbol Min Typ Max Unit
Calculated Reliability based upon Telcordia SR-
332 Issue 2: Method
I Case 3 (I
O
=80%I
O, max
,
T
A
=40°C, airflow = 200 lfm, 90% confidence)
All
FIT 341.8 10 9 /Hours
MTBF 2,925,365 Hours
Weight All
 78  g
2.8 oz.