AME9002 Datasheet, PDF (8/37 Pages) Asahi Kasei Microsystems – CCFL Backlight Controller

AME, Inc.
AME9002
n Block Diagram
Preliminary
CCFL Backlight Controller
REF
1
C2
1µ
CE
To Chip Enable
CE
2
Logic
140
nA
SSC
3
C3
0.039µ
RDELTA
V_Supply R3
4
3.4V
REF
140
µA
1_ST
Later
RES_SSC 3V
2VOK
BLANK
B
A
FAULTB
5
RT2
6
R2
56K
VSS
7
OVPH
C
8
R35
D16
OVPL
9
R36
R10
604
R9
249
C32
1µF
FCOMP
10
CSDET
11
VBATT
R40
BATTFB
60K
12
R41
10K
RAMP
V_CO CLK
1.5V
3.3V
2.5V
RES_SSC
RES_SSV
Fault
RES_FCOMP ^Logic
2.5V
1µA
STRIKE
RES_FCOMP
1.25V
CLK
2bit
Count
1.5V
1.25V
BAITOK
5V
LDO
R4
PNP
2K
24
VBATT
Q1
RES_SSV
SSV
23
C14
1000pF
BRIGHT
22 ^BRIGHTNESS
Control VOLT.
EA1
2.5V
Dimming
RAMP
CEN
COMP
21
FB
20
CT1
19
C8
47nF
R7
30K
C4
0.047µF
VDD
18
C7
4.7µF
BRPOL
17 ^HI=Reverse
LO=Normal
PWM HS
Driver
NORM
2
VBATT
16
7.5V
OUTA
15
C7
Q2
OUTAPB
14
B
A
Q3-1
OUTC
13
C
Q3-2
8