AME9001 Datasheet, PDF (18/27 Pages) Analog Microelectronics – CCFL BACKLIGHT CONTROLLER

AME, Inc.
AME9001
1.5V
+
-
RT2
R2
VSS
Figure 12. VCO Detail
CCFL Backlight Controller
3.0V
0
I_in
50:1
curent
divider
I_out
0
+
-
Vco_Control
RAMP
CLK
RDELTA
1.25V
CS
R3
V_BATT
CSCOMP
Inside chip
Outside chip
Figure 13. LDO Detail
Inside Chip
Outside Chip
1
V_DDOK
2
To Fault
-
Logic
2.5V
+
-
EN
PNP
VDD
CE
Start
UP
R4
Q1
V_BATT
27 < V_BATT < 24
To user
enable circuitry
C7
4.7µF
18