JW150B Lineage Power, JW150B Datasheet - Page 9

• Manufacturer Part Number: JW150B
• Manufacturer: Lineage Power

Data Sheet
April 2008
Test Configurations
Note: Measure input reflected-ripple current with a simulated source
Figure 17. Input Reflected-Ripple Test Setup
Note: Use a 1.0 µF ceramic capacitor and a 10 µF aluminum or
Figure 18. Peak-to-Peak Output Noise
Lineage Power
V
V
BATTERY
inductance (L
battery impedance. Measure current as shown above.
O
tantalum capacitor. Scope measurement should be made
using a BNC socket. Position the load between 51 mm and
76 mm (2 in. and 3 in.) from the module.
O
(+)
(–)
TO OSCILLOSCOPE
Measurement Test Setup
TEST
COPPER STRIP
1.0 µF
) of 12 µH. Capacitor C
C
ESR < 0.1
@ 20 C, 100 kHz
S
220 µF
12 µH
L
10 µF
TEST
dc-dc Converters; 36 to 75 Vdc Input, 12 Vdc Output; 50 W to 150 W
ESR < 0.7
@ 100 kHz
SCOPE
33 µF
S
CURRENT
PROBE
offsets possible
RESISTIVE
LOAD
JW050B, JW075B, JW100B, JW150B Power Modules:
8-513 (C).d
8-203 (C).l
V
V
I
I
(+)
(–)
Note: All measurements are taken at the module terminals. When
Figure 19. Output Voltage and Efficiency
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 33 µF
electrolytic capacitor (ESR < 0.7
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., UL 1950, 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 meet-
ing the requirements of safety extra-low voltage
(SELV), all of the following must be true:
SUPPLY
The input source is to be provided with reinforced
insulation from any hazardous voltages, including the
ac mains.
One V
RESISTANCE
socketing, place Kelvin connections at module terminals to
avoid measurement errors due to socket contact resistance.
CONTACT
=
I
pin and one V
----------------------------------------------- - x 100
V
Measurement Test Setup
I
V
O
I
I
(+) – V
(+) – V
V
V
I
I
(+)
(–)
O
I
(–) I
(–) I
O
pin are to be grounded or both
SENSE(+)
SENSE(–)
I
O
V
V
O
O
(+)
(–)
at 100 kHz)
DISTRIBUTION LOSSES
I
O
%
CONTACT AND
8-749 (C)
LOAD
9