FW330 Lineage Power, FW330 Datasheet - Page 11

• Manufacturer Part Number: FW330
• Description: Fw330 Power Modules Dc-dc Converters 36 To 75 Vdc Input, 3.6, 3.3, 2.5, 2.0, Or 1.8 Vdc Output; 180 W To 330 W
• Manufacturer: Lineage Power

April 3, 2008
Test Configurations
Note: Measure input reflected-ripple current with a simulated source
Note: Use a load capacitance as indicated in the Output Specifica-
Figure 18. Peak-to-Peak Output Noise
Note: All measurements are taken at the module terminals. When
Figure 19. Output Voltage and Efficiency
Lineage Power
BATTERY
Figure 17. Input Reflected-Ripple Test Setup
inductance (L
tery impedance. Measure current as shown above.
tions table. Scope measurement should be made using a BNC
socket. Position the load between 50 mm and 76 mm (2 in.
and 3 in.) from the module.
socketing, place Kelvin connections at module terminals to
avoid measurement errors due to socket contact resistance.
S U P P L Y
η
V
V
R E S IS T A N C E
TO OSCILLOSCOPE
O
O
C O N T A C T
=
(+)
(-)
⎛
⎝
Measurement Test Setup
Measurement Test Setup
[
------------------------------------------------- -
V
[
I
V
I
O
TEST
I
+ ( ) – V
+ ( ) – V
Cs 220 µF
ESR < 0.1 ½
@20 ¡C, 100 kHz
COPPER STRIP
) of 12 µH. Capacitor C
V
V
I
I
12 µH
(+ )
(-)
L
TEST
O
S E N S E (+ )
36 to 75 Vdc Input, 3.6, 3.3, 2.5, 2.0, or 1.8 Vdc Output; 180 W to 330 W
S E N S E (-)
I
– ( )
– ( )
ESR < 0.3 ½
V
V
@100 kHz
O
O
(+ )
]I
(-)
]I
100 µF
I
O
SCOPE
⎞ x 100
⎠
D IS T R IB U T IO N L O S S E S
I
O
C O N T A C T A N D
S
offsets possible bat-
RESISTIVE
LOAD
V
V
%
I
I
L O A D
(+)
(-)
8-203 (C).o
8-513 (C).q
8-683 (C).f
Design Considerations
Input Source Impedance
The power module should be connected to a low
ac-impedance input source. Highly inductive source
impedances can affect the stability of the power mod-
ule. For the test configuration in Figure 17, a 100 µF
electrolytic capacitor (ESR < 0.3 ¾ at 100 kHz)
mounted close to the power module helps ensure sta-
bility of the unit. For other highly inductive source
impedances, consult the factory for further application
guidelines.
Safety Considerations
For safety-agency approval of the system in which the
power module is used, the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standard,
i.e., UL1950, CSA C22.2 No. 950-95, and VDE 0805
(EN60950, IEC950).
If the input source is non-SELV (ELV or a hazardous
voltage greater than 60 Vdc and less than or equal to
75 Vdc), for the module’s output to be considered
meeting the requirements of safety extra-low voltage
(SELV), all of the following must be true:
n
n
n
n
Note: Do not ground either of the input pins of the
The power module has extra-low voltage (ELV) outputs
when all inputs are ELV.
The input to these units is to be provided with a maxi-
mum 20 A normal-blow fuse in the ungrounded lead.
The input source is to be provided with reinforced
insulation from any hazardous voltages, including the
ac mains.
One V
both the input and output pins are to be kept floating.
The input pins of the module are not operator acces-
sible.
Another SELV reliability test is conducted on the
whole system, as required by the safety agencies, on
the combination of supply source and the subject
module to verify that under a single fault, hazardous
voltages do not appear at the module’s output.
module without grounding one of the output pins.
This may allow a non-SELV voltage to appear
between the output pin and ground.
I
pin and one V
O
pin are to be grounded, or
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