JBW030F Datasheet, PDF (7/16 Pages) Lineage Power Corporation – 36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W

Data Sheet
March 27, 2008
JBW030-Series Power Module: dc-dc Converters
36-75 Vdc Input; 3.3 Vdc and 5 Vdc Outputs; 30 W
Characteristic Curves (continued)
Test Configurations
TO OSCILLOSCOPE
LTEST
12 µH
CURRENT
PROBE
BATTERY
CS 220 µF
IMPEDANCE < 0.1 Ω
@ 20 ˚C, 100 kHz
VI(+)
VI(-)
8-489(C)
Note: Input reflected-ripple current is measured with a simulated
source impedance of 12 µH. Capacitor CS offsets possible
battery impedance. Current is measured at the input of the
module.
TIME, t (0.2 ms/div)
1-0882
Figure 9. JBW030A Typical Output Voltage for a
Step Load Change from 50% to 25%
Figure 11. Input Reflected-Ripple Test Setup
VO(+)
VO(–)
COPPER STRIP
0.1 µF
SCOPE
RESISTIVE
LOAD
100
8-513(C)
80
Note: Use a 0.1 µF ceramic capacitor. Scope measurement should
be made using a BNC socket. Position the load between
40
50 mm and 75 mm (2 in. and 3 in.) from the module.
Figure 12. Peak-to-Peak Output Noise
Measurement Test Setup
TIME, t (10 ms/div)
8-733a
Figure 10. Typical Output Voltage Start-Up when
Signal Applied to Remote On/Off
II
SUPPLY
SENSE(+)
VI (+)/CASE VO (+)
CONTACT AND
DISTRIBUTION LOSSES
IO
LOAD
CONTACT
RESISTANCE
VI(–)
VO (–)
SENSE(–)
8-749(C).a
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.
η
=
⎛
⎝
[_---V_[---V--O_--I--((_--++_----))_----––_----VV_-----OI_--(--(–_--–_--)--)_-]-]_-----II_-I-O_{--⎠⎞}
× 100
%
Figure 13. Output Voltage and Efficiency
Measurement Test Setup
Lineage Power
7