參數資料
型號: FAN7311GX
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 顯示驅動器
英文描述: LCD Backlight Inverter Drive IC
中文描述: LIQUID CRYSTAL DISPLAY DRIVER, PDSO20
封裝: LEAD FREE, SSOP-20
文件頁數: 5/13頁
文件大?。?/td> 461K
代理商: FAN7311GX
5
www.fairchildsemi.com
FAN7311 Rev. 1.0.0
F
Electrical Characteristics
For typical values Ta=25
°
C, Vcc=12V and for min/max values Ta is the operating ambient temperature range with
-25
°
C
Ta
85
°
C and 5V
Vcc
25.5V, unless otherwise specified.
Characteristics
REFERENCE SECTION ( Recommend X7R Capacitor )
Symbol
Test Condition
Min.
Typ.
Max.
Unit
Line Regulation
Vref
5
V
CC
25.5V
-
2
25
mV
2.5V Regulation Voltage
OSCILLATOR SECTION(MAIN)
V25
-
2.45
2.5
2.55
V
Oscillation Frequency
fosc
Ta = 25
°
C, Ct = 270pF
Rt = 18k
108
115
122
kHz
Ct = 270pF, Rt = 18k
106
115
124
CT High Voltage
Vcth
-
-
2.0
-
V
CT Low Voltage
OSCILLATOR SECTION(BURST)
Vctl
-
-
0.5
-
V
Oscillation Frequency
foscb
Ctb = 10nF, Rt=18k
195
225
255
Hz
BCT High Voltage
Vbcth
-
-
2
-
V
BCT Low Voltage
ERROR AMP SECTION
Vbctl
-
-
0.5
-
V
Open Loop Gain
-
-
80
-
dB
Unit Gain Bandwidth
-
-
1.5
-
MHz
Feedback Output High Voltage
Veh
EA_IN = 0V
2.0
2.27
2.54
V
Output Sink Current
lsin
EA_OUT = 1.5V
-
-
-1
mA
Output Source Current
lsur
EA_OUT = 1.5V
1
-
-
mA
EA_IN Driving Current On OLR
Iolr
-
75
105
135
uA
EA_IN Driving Current On Burst Dimming
Iburst
-
61
85
109
uA
Feedback High Voltage On Burst Dimming
SOFT START SECTION
Vfbh
R(EA_IN) = 60k
Va+0.1
Va+0.4
Va+0.7
V
Soft Start Current
I
SS
Vssh
S_S=2V
4
6
8
uA
Soft Start Clamping Voltage
PROTECTION SECTION
-
-
5
-
V
Open Lamp Protection Voltage 0
Volp0
Start at open lamp
2.2
2.5
2.8
V
Open Lamp Protection Voltage 1
Volp1
Normal -> open lamp
1.3
1.5
1.7
V
Open Lamp Regulation Voltage
Volr
-
1.75
2
2.25
V
Open Lamp Protection Charging Current
UNDER VOLTAGE LOCK OUT SECTION
Iolp
-
0.7
1.4
2.1
uA
Start Threshold Voltage
Vth
-
-
-
5
V
Start Up Current
Ist
V
CC
= Vth-0.2
V
CC
= 12V
V
CC
= 12V
-
130
180
uA
Operating Supply Current
Iop
-
1.5
4
mA
Stand-by Current
ON/OFF SECTION
Isb
-
200
370
uA
On State Input Voltage
Von
-
2
-
5
V
Off Stage Input Voltage
Voff
-
-
-
0.7
V
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