JFW100G Lineage Power, JFW100G Datasheet - Page 8

• Manufacturer Part Number: JFW100G
• Manufacturer: Lineage Power

dc-dc Converters; 36 to 75 Vdc Input; 2.5 Vdc Output; 25 W to 75 W
Characteristic Curves
Note: Tested with a 10 µF aluminum and a 1.0 µF ceramic capacitor
Figure 9. Typical JFW150G Transient Response to
Note: Tested with a 10 µF aluminum and a 1.0 µF ceramic capacitor
Figure 10. Typical Start-Up from Remote On/Off
8 8
across the load.
across the load.
2.5 V
7.5 A
15 A
Step Increase in Load from 50% to 75%
of Full Load at Room Temperature and
48 V Input (Waveform Averaged to
Eliminate Ripple Component.)
JFW150G1; I
TIME, t (5 ms/div)
TIME, t (200 µs/div)
O
= I
O, max
(continued)
8-2457 (C)
8-2523 (C)
Test Configurations
Note: Measure input reflected-ripple current with a simulated source
Note: Use a 1.0 µF ceramic capacitor and a 10 µF aluminum or tan-
Figure 12. Peak-to-Peak Output Noise
Note: All measurements are taken at the module terminals. When
Figure 13. Output Voltage and Efficiency
BATTERY
SUPPLY
Figure 11. Input Reflected-Ripple Test Setup
V
V
RESISTANCE
inductance (L
tery impedance. Measure current as shown above.
talum 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.
socketing, place Kelvin connections at module terminals to
avoid measurement errors due to socket contact resistance.
η
O
O
CONTACT
(+)
(–)
=
TO OSCILLOSCOPE
⎛
⎝
[
------------------------------------------------------ -
Measurement Test Setup
Measurement Test Setup
V
[
I
V
I
O
I
+ ( ) – V
+ ( ) – V
TEST
COPPER STRIP
C
ESR < 0.1 Ω
@ 20 ˚C, 100 kHz
1.0 µF
S
220 µF
) of 12 µH. Capacitor C
V
V
(
I
I
(
(+)
(
–
12 µH
)
O
I
L
– ( )
– ( )
TEST
SENSE(+)
SENSE(
10 µF
)
)
]I
]I
V
V
O
O
I
O
ESR < 0.7 Ω
(
(+)
@ 100 kHz
–
–
⎞ x 100
⎠
)
)
33 µF
SCOPE
CURRENT
PROBE
DISTRIBUTION LOSSES
S
I
O
offsets possible bat-
CONTACT AND
Lineage Power
April 2008
RESISTIVE
LOAD
%
V
V
I
I
(+)
8-513 (C).b
(–)
8-203 (C).l
LOAD
8-749 (C)