AME9003 Datasheet, PDF (15/39 Pages) Asahi Kasei Microsystems – CCFL Backlight Controller

AME, Inc.
AME9003
Figure 8-1. Region I
I_LEAK
Preliminary
C_parasitic
Load
I
I
CCFL Backlight Controller
Figure 8-2. Region II
I_LEAK
C_parasitic
Load
Figure 8-3. Region III
I_LEAK
I
C_parasitic
Load
Figure 8-4. Region IV
I_LEAK
I
C_parasitic
Load
BRIGHT
CT1
Figure 9. Steady State Dimming Waveforms (after initial start up period)
3V
0.5V
SSV
3V
3V
SSC
Blanked Faults
CSDET < 1.25V
OVPL > 2.5V
Ignore
Unblanked Faults
OVPH > 3.3V
Tube Current
(time not
to scale)
Respond
Ignore
Always Respond to Over voltage Faults
Respond
~ 6ms
5V
OV
5V
OV
15