JBW050A1 Datasheet, PDF (6/16 Pages) Lineage Power Corporation – 36 to 75 Vdc Input, 5 Vdc Output; 50 W

JBW050A Power Modules: dc-dc Converter;
36 to 75 Vdc Input, 5 Vdc Output; 50 W
Characteristic Curves (continued)
Data Sheet
March 27, 2008
TIME, t (100 µs/div)
1-0693
Note: Tested with a 10 µF aluminum and a 1.0 µF ceramic capacitor
across the load.
Figure 5.
Typical Transient Response to Step
Decrease in Load from 50% to 25% of
Full Load at Room Temperature and 48 V
Input (Waveform Averaged to Eliminate
Ripple Component.)
TIME, t (5 ms/div)
1-0695
Note: Tested with a 10 µF aluminum and a 1.0 µF ceramic capacitor
across the load.
Figure 7. Typical Start-Up from Remote On/Off;
IO = IO, max
Test Configurations
TO OSCILLOSCOPE
BATTERY
LTEST
CURRENT
PROBE
12 μH
CS 220 μF
ESR < 0.1 Ω
@ 20 °C, 100 kHz
33 μF
ESR < 0.7 Ω
@ 100 kHz
VI(+)
VI(–)
8-203.l
Note: Measure input reflected-ripple current with a simulated source
inductance (LTEST) of 12 µH. Capacitor CS offsets possible bat-
tery impedance. Measure current as shown above.
Figure 8. Input Reflected-Ripple Test Setup
TIME, t (100 µs/div)
1-0694
Note: Tested with a 10 µF aluminum and a 1.0 µF ceramic capacitor
across the load.
Figure 6.
Typical Transient Response to Step
Increase in Load from 50% to 75% of Full
Load at Room Temperature and
48 V Input (Waveform Averaged to
Eliminate Ripple Component.)
6
Lineage Power