Data Sheet
October 6, 2005
JHW250S30R2 Power Module; dc-dc Converter
36 – 75 Vdc Input; 30.2Vdc Output; 250W
Electrical Specifications
(continued)
Parameter
Output Voltage Set-point
(V
IN
=V
IN,nom
, I
O
=I
O, max
, T
c
=25°C)
Device
All
Symbol
V
O, set
Min
29.89
Typ
30.20
Max
30.50
Unit
V
dc
Output Voltage
(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
= -40°C to +100°C)
Output Ripple and Noise on nominal output
(V
IN
=V
IN, nom
and I
O
=I
O, min
to I
O, max,
C
O
=C
O,min
)
RMS (5Hz to 20MHz bandwidth)
Peak-to-Peak (5Hz to 20MHz bandwidth)
External Capacitance
(type electrolytic)
Output Current
All
V
O
29.40
⎯
31.00
V
dc
All
All
All
⎯
⎯
⎯
0.02
0.05
100
0.1
0.2
320
%Vo
%Vo
mV
All
All
All
All
C
O, max
I
o
⎯
⎯
1000
0
27
45
⎯
40
150
3600
8.3
mV
rms
mV
pk-pk
μF
Adc
Output Current Limit Inception
Hiccup current limit (V
O
< 30% of V
O,set
)
Average Output Short-Circuit Current
(Vo
≤
250mV and Hiccup mode)
Efficiency
V
IN
=V
IN, nom
, T
c
=25°C
I
O
=I
O, max ,
V
O
= V
O,set
Switching Frequency
Dynamic Load Response
(ΔIo/Δt=5A/10μs; V
in
=V
in
,nom; T
c
=25°C; Tested
with a 2100μF aluminum and a 1.0
μF
tantalum
capacitor across the load.)
Load Change from Io= 1A to 8.3A:
Peak Deviation
Settling Time (Vo<10% peak deviation)
Load Change from Io= 8.3A to 1A:
Peak Deviation
Settling Time (Vo<10% peak deviation)
All
All
All
I
O, lim
I
O, hic
I
O, s/c
⎯
⎯
⎯
10.0
12.8
⎯
⎯
⎯
10
Adc
Adc
% I
O, max
All
η
⎯
92.0
⎯
%
All
f
sw
⎯
350
⎯
kHz
All
All
All
All
V
pk
t
s
V
pk
t
s
⎯
__
__
⎯
400
1000
400
1000
⎯
__
__
⎯
mV
μs
mV
μs
Tyco Electronics Power Systems
3
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
