AME, Inc.
AME9002
y
inar
lim
Pre
CCFL Backlight Controller
n
Electrical Specifications
TA= 25
O
C unless otherwise noted, VBATT = 15V, CT1 = 0.047uF, RT2 = 56K
Parameter
5V supply (VSUPPLY)
Output voltage
Line regulation
Load regulation
Temperature drift
3.4V reference (VREF)
Initial voltage
Line regulation
Temperature drift
V
REF
V
REFLINE
V
REFTC
Vbatt = 15V, Iref = 0
7< Vbatt < 24V
-10C <Ta < 70C
3.25
-0.1
100
3.4
3.525
0.1
V
%
ppm/C
V
DD
V
DDLINE
V
DDLOAD
V
DDTC
7<Vbatt<24
Vbatt=7V, 0mA < Iload < 25mA
-10C < Ta < 70C
4.9
-0.5
-0.2
0.5
5.15
5.35
0.5
0.2
V
%
%
%
Symbol
Test Condition
Min
Typ
Max
Units
Brightness oscillator (CT1, BRIGHT)
Ramp amplitude
Frequency
Line regulation
Temperature drift
Comparator offset
Vco oscillator (RT2, RDELTA)
Initial frequency
Line regulation
Temperature drift
VCO pullin range
Error amplifiers (FB, COMP)
Offset voltage, WRT Vref
Input bias current
Input offset current
Open loop gain
Unity gain frequency
Output high voltage (comp)
Output low voltage
V
OS
I
B
I
OS
A
OL
F
T
V
OH
V
OL
I
SOURCE
= 50uA
I
SINK
= 500uA
3.39
0.4
-40
1
1
70
1
40
mV
nA
nA
dB
Mhz
V
V
F
VCO(OUTA)
LINE
VCO
TC
VCO
PULL
VCO
RT2 = 56k
7< Vbatt < 24V
-10C < Ta < 70C
47
-0.8
+-0.5
RT2/(RDELTA X 5)
52
0.8
kHz
%
%
%
V
CT1
F
CT1
LINE
CT1
TC
CT1
VOS
CT1
7< Vbatt < 24V
-10C < Ta < 70C
70
-1
=+-3
10
3
130
1
V
Hz
%
%
mV
6
AKM [ ASAHI KASEI MICROSYSTEMS ]
