AME9001 Datasheet, PDF (4/27 Pages) Analog Microelectronics – CCFL BACKLIGHT CONTROLLER

AME, Inc.
AME9001
CCFL Backlight Controller
n Electrical Specifications
TA= 25^OC unless otherwise noted, VBATT = 15V, CT1 = 0.01uF, RT2 = 56K
Parameter
Symbol
Test Condition
5V supply (VSUPPLY)
Output voltage
V_DD
Line regulation
V_DDLINE
7<Vbatt<24
Load regulation
V_DDLOAD Vbatt=7V, 0mA < Iload < 25mA
Temperature drift
V_DDTC
-10C < Ta < 70C
3.4V reference (VREF)
Initial voltage
V_REF
Vbatt = 15V, Iref = 0
Line regulation
V_REFLINE
7< Vbatt < 24V
Temperature drift
V_REFTC
-10C <Ta < 70C
Brightness oscillator (CT1, BRIGHT)
Ramp amplitude
V_CT1
Frequency
F_CT1
Line regulation
LINE_CT1
7< Vbatt < 24V
Temperature drift
TC_CT1
-10C < Ta < 70C
Comparator offset
VOS_CT1
Vco oscillator (RT2, RDELTA)
Initial frequency
F_VCO(OUTA)
RT2 = 56k
Line regulation
LINE_VCO
7< Vbatt < 24V
Temperature drift
TC_VCO
-10C < Ta < 70C
VCO pullin range
PULL_VCO
Error amplifiers (FB, COMP, CS, CSCOMP)
Offset voltage, WRT Vref
V_OS
Input bias current
I_B
Input offset current
I_OS
Open loop gain
A_OL
Unity gain frequency
F_T
Output high voltage (comp)
V_OH
Output low voltage
V_OL
Output high voltage (cscomp) V_OH
I_SOURCE = 50uA
I_SINK = 500uA
I_SOURCE = 50uA
Min Typ Max
4.9 5.15 5.35
-0.5
0.5
-0.2
0.2
0.5
3.25 3.4 3.525
-0.1
0.1
100
3
70
130
-0.5
0.5
=+-3
10
47
52
-0.8
0.8
+-0.5
RT2/(RDELTA X 5)
-40
40
1
1
70
1
3.39
0.4
4.77
Units
V
%
%
%
V
%
ppm/C
V
Hz
%
%
mV
kHz
%
%
%
mV
nA
nA
dB
Mhz
V
V
V
4