AME9003 Datasheet, PDF (7/39 Pages) Asahi Kasei Microsystems – CCFL Backlight Controller

AME, Inc.
AME9003
Preliminary
CCFL Backlight Controller
n Electrical Specifications
TA= 25^OC unless otherwise noted, VBATT = 15V, CT1 = 0.047uF, RT2 = 56K
Parameter
Symbol
Test Condition
Min Typ Max Units
5V supply (VSUPPLY)
Output voltage
Line regulation
Load regulation
Temperature drift
V_DD
V_DDLINE
V_DDLOAD
V_DDTC
3.4V reference (VREF)
Initial voltage
Line regulation
Temperature drift
V_REF
V_REFLINE
V_REFTC
Brightness oscillator (CT1, BRIGHT)
Full Scale Brightness Threshold
Zero Scale Brightness Threshold
Frequency Accuracy
Frequency Range
Line regulation
Temperature drift
Comparator offset
V_CT1,HIGH
V_{CT1, LOW}
F_CT1
F_CT1
LINE_CT1
TC_CT1
VOS_CT1
Vco oscillator (RT2, RDELTA)
Initial frequency
Line regulation
Temperature drift
VCO pullin range
F_VCO(OUTA)
LINE _VCO
TC_VCO
PULL_VCO
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
COMP 100% Duty
COMP 0% Duty
V_OS
I_B
I_OS
A_OL
F_T
V_OH
V_OL
V_COMP
V_COMP
7<Vbatt<24
Vbatt=7V, 0mA < Iload < 25mA
-10C < Ta < 70C
Vbatt = 15V, Iref = 0
7< Vbatt < 24V
-10C <Ta < 70C
Note 1
7< Vbatt < 24V
-10C < Ta < 70C
Note 2
7< Vbatt < 24V
-10C < Ta < 70C
I_SOURCE = 50uA
I_SINK = 500uA
4.9 5.15 5.35 V
-0.5
0.5
%
-0.2
0.2
%
0.5
%
3.3 3.4 3.5
V
-0.1
0.1
%
100
ppm/C
2.9
3.1
V
0
100 mV
70
130 Hz
10
1000 Hz
-1
1
%
=+-3
%
10
mV
47
52 kHz
-0.8
0.8
%
+-1.5
%
RT2/(RDELTA X 5) %
50
mV
1
nA
1
nA
70
dB
1
Mhz
3.32
V
0.4
V
3
V
0
V
7