AME9003 Datasheet, PDF (9/39 Pages) Asahi Kasei Microsystems – CCFL Backlight Controller

AME, Inc.
AME9003
Preliminary
CCFL Backlight Controller
n Block Diagram
Figure 1
REF
1
C2
1µ
3.4V
REF
To Chip Enable ^CE CE
2
Logic
1.5uA
140
µA
SSC
C3
3
0.047µ
1_ST
Later
RES_SSC _3V
V_Supply
R3
15k
C31
0.47µF
RDELTA
4
SSC1ST
5
B
RT2
6
RAMP
FIRST
V
CO
CLK
1.5V
A
C
R2
40K
VSS
7
OVPH
8
R35
D16
OVPL
9
R36
3.3V
2.5V
RES_SSC
RES_SSV
Fault
RES_FCOMP ^Logic
2.5V
1µA
STRIKE
FCOMP
10
VDD C32
R10
2.2nF
R42
680
10k
CSDET
D20 D21
R40
R9
7.5k
221
VBATT
R40
60K
11
C34
0.01u
BATTFB
12
R41
10K
RES_FCOMP
1.25V
2bit
Count
1.5V
1.25V
BAITOK
2VOK
BLANK
VBATT
5V
LDO
R4
PNP
2K
24
Q1
10uA
RES_SSV
20uA
SSV
23
C14
1000pF
BRIGHT
22
BRIGHTNESS
Control VOLT.
EA1
2.5V
Dimming
RAMP
CEN
COMP
21
FB
20
C8
47nF
R7
30K
CT1
19
C4
0.047µF
VDD
18
C7
4.7µF
BRPOL
17
HI=Reverse
LO=Normal
PWM HS
Driver
2
VBATT
16
C7
7.5V
OUTA
15
Q2
OUTAPB
14
B
A
Q3-1
OUTC
13
C
Q3-2
9