6
dc2215af
DEMO MANUAL DC2215A
8. Repeat steps 4 to 6 with V
IN2
. With V
IN1
off increase
V
IN2
from 0V to 8.4V. The part will turn on when V
IN2
is approximately 6V. Once on, V
IN2
can be varied
between 6V and 8.4V. 8.4V symbolizes a 2-cell Li-Ion
battery range. However, V
IN2
is rated for operation up
to 42V.
9. Set the load to 5.0Ω (660mA).
10. Set V
IN2
to 7.5V and turn on V
IN1
slowly increasing
the V
IN1
voltage from 0V to 10V. Note that V
IN1
starts
to supply the power as the voltage of V
IN1
exceeds its
turn on set point of 4.3V (see Figure 2).
Quick start proceDure
11. By adjusting the voltage on V
IN1
from 10V to 0V and
back the converter operates from V
IN1
while V
IN1
is
above approximately 4.3V and when V
IN1
is below ap-
proximately 4.2V it operates from V
IN2.
(See Figure 2).
12. Change JP2 to “DIODE”. By adjusting the voltage on
V
IN1
from 10V to 0V and back the converter operates
from V
IN1
while V
IN1
is above approximately 7.5V and
from V
IN2
when V
IN1
is below approximately 7.5V.
(See Figure. 3).