Infineon Technologies IR3899, Руководство пользователя, Страница: 8 / 16

IRDC3899-P1V2
9/18/2012
8
TYPICAL OPERATING WAVEFORMS
Vin=12.0V, Vo=1.2V, Io=0-9A, Room Temperature, no airflow
Fig. 10: Output Voltage Ripple, 9A load
Ch
1
: V
out ,
Fig. 11: Inductor node at 9A load
Ch
2
:LX
Fig. 8: Start up at 9A Load,
Ch
1
:V
in
, Ch
2
:V
o
, Ch
3
:P
good
, Ch
4
:Vcc
Fig. 7: Start up at 9A Load
Ch
1
:V
in
, Ch
2
:V
o
, Ch
3
:P
Good
Ch
4
:Enable
Fig. 9: Start up with 1V Pre Bias , 0A Load,
Ch
2
:V
o
Fig. 12: Short circuit (Hiccup) Recovery
Ch
2
:V
out
, Ch4:Iout