JPW200S52R5-BH Power Module; dc-dc Converter
38 Vdc - 75 Vdc Input, 52.5 Vdc Output; 200W
Data Sheet
March 26, 2008
Test Configurations
Design Considerations
TO OSCILLOSCOPE
Input Source Impedance
CURRENT
PROBE
L
TEST
The power module should be connected to a low
ac-impedance input source. Highly inductive source imped-
VI(+)
12 μH
ances can affect the stability of the power module. For the
test configuration in 9, a 100 µF electrolytic capacitor (ESR <
0.7 W at 100 kHz) mounted close to the power module helps
ensure stability of the unit. For other highly inductive source
C
S
220
ESR < 0.1
@ 20 C, 100 kHz
μF
Ω
°
100
μ
F
BATTERY
ESR < 0.7
Ω
@ 100 kHz
impedances, consult the factory for further application guide-
VI(–)
lines.
Note: Measure input reflected-ripple current with a simulated source
inductance (LTEST) of 12 µH. Capacitor CS offsets possible
battery impedance. Measure current as shown above.
Safety Considerations
For safety-agency approval of the system in which the power
module is used, the power module must be installed in com-
pliance with the spacing and separation requirements of the
end-use safety agency standard, i.e., UL60950, CSA C22.2
No. 60950-00, and EN 60950 (VDE 0805):2001-12.
Figure 9. Input Reflected-Ripple Test Setup.
COPPER STRIP
VO(+)
These converters have been evaluated to the spacing
requirements for Basic Insulation per the above safety stan-
dards. For Basic Insulation models, 2250 Vdc is applied from
Vi to Vo to 100% of outgoing production.
RESISTIVE
LOAD
1.0 μF
200 μF SCOPE
VO(–)
For end products connected to –48V dc, or –60Vdc nominal
DC MAINS (i.e. central office dc battery plant), no further fault
testing is required. *Note: -60V dc nominal battery plants are
not available in the U.S. or Canada.
Note: The use of a 200 µF aluminum capacitor is needed for stability.
Use a 1.0 µF ceramic capacitor on the output. Scope measure-
ment should be made using a BNC socket. Position the load
between 51 mm and 76 mm (2 in. and 3 in.) from the module.
For all input voltages, other than DC MAINS, where the input
voltage is less than 60V dc, if the input meets all of the
requirements for SELV, then:
n
The output may be considered SELV. Output voltages will
remain within SELV limits even with internally-generated
non-SELV voltages. Single component failure and fault
tests were performed in the power converters.
Figure 10. Peak-to-Peak Output Noise Measurement Test
Setup.
CONTACT AND
DISTRIBUTION LOSSES
SENSE(+)
n
One pole of the input and one pole of the output are to be
grounded, or both circuits are to be kept floating, to main-
tain the output voltage to ground voltage within ELV or
SELV limits.
V
O(+)
VI(+)
I
O
II
SUPPLY
LOAD
For all input sources, other than DC MAINS, where the input
voltage is between 60 and 75V dc (Classified as TNV-2 in
Europe), the following must be meet, if the converter’s output
is to be evaluated for SELV:
VI
(–)
V
O
(–)
CONTACT
RESISTANCE
SENSE(–)
n
The input source is to be provided with reinforced insula-
tion from any hazardous voltage, including the ac mains.
Note:All measurements are taken at the module terminals. When
socketing, place Kelvin connections at module terminals to
avoid measurement errors due to socket contact resistance.
n
One Vi pin and one Vo pin are to be reliably earthed, or
both the input and output pins are to be kept floating.
Another SELV reliability test is conducted on the whole
system, as required by the safety agencies, on the combi-
nation of supply source and the subject module to verify
that under a single fault, hazardous voltages do not appear
at the module’s output.
[V (+) – V (-)]I
O
O
O
⎛
⎞
η = ---------------------------------------------- × 100 %
⎝
⎠
[V (+) – V (-)]I
I
I
I
Figure 11. Output Voltage and Efficiency Measurement.
The power module has ELV (extra-low voltage) outputs when
all inputs are ELV.
All flammable materials used in the manufacturing of these
7
Lineage Power
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
