Data Sheet
JHC/JHW350 Power Module; dc-dc Converter
March 26, 2008
18 – 36Vdc or 36 – 75Vdc Input; 28Vdc Output; 350W
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Typ
Max
Unit
Output Voltage Set-point
(VIN=VIN,nom, IO=IO, max, Tc =25°C)
R
VO, set
27.5
28
28.5
Vdc
Output Voltage
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
R
VO
27.16
28.84
Vdc
⎯
Output Regulation
All
All
All
Line (VIN=VIN, min to VIN, max
Load (IO=IO, min to IO, max
)
0.02
0.05
100
0.1
0.2
300
%Vo
%Vo
mV
⎯
⎯
⎯
)
Temperature (Tc = -40°C to +100°C)
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max, CO=CO,min
)
All
All
RMS (5Hz to 20MHz bandwidth)
27
45
40
mVrms
⎯
⎯
Peak-to-Peak (5Hz to 20MHz bandwidth)
150
mVpk-pk
External Capacitance
(type electrolytic)
All
CO, max
1000
3600
μF
⎯
R
R
Output Current
Io
0
12.5
Adc
Adc
Output Current Limit Inception
IO, lim
13.5
⎯
⎯
Efficiency
VIN=VIN, nom, Tc=25°C
IO=IO, max , VO= VO,set
JHC350R
JHW350R
92.5
93.5
η
η
%
%
⎯
⎯
⎯
⎯
Switching Frequency
All
fsw
350
kHz
Dynamic Load Response
(ΔIo/Δt=1A/10μs; Vin=Vin,nom; Tc=25°C; Tested
with a 330 μF aluminum and a 1.0 μF tantalum
capacitor across the load.)
All
All
Load Change from Io= 50% to 75% of Io,max:
Peak Deviation
Vpk
ts
2
%VO, set
⎯
⎯
__
500
__
Settling Time (Vo<10% peak deviation)
μs
%VO, set
μs
Load Change from Io= 75% to 50% of Io,max:
Peak Deviation
All
All
Vpk
ts
__
2
__
Settling Time (Vo<10% peak deviation)
500
⎯
⎯
LINEAGE POWER
3
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
