FAN7318B Datasheet, PDF (7/24 Pages) Fairchild Semiconductor – LCD Backlight Inverter Drive IC

Electrical Characteristics (Continued)
For typical values, TA=25°C, VIN=15V, and -25°C ≤ TA ≤ 85°C, unless otherwise specified. Specifications to -25°C ~
85°C are guaranteed by design based on final characterization results.
Symbol
Parameter
Analog Dimming Section
AVrexx Reference Voltage
Error Amplifier Section
lsin
Output Sink Current
lsur1
Output Source Current 1
lsur2
Output Source Current 2
Ibsin
Burst CMP Sink Current
Iolpi
OLP Input Current
Iolpo
OLP Output Current
Vlpfx
Rectifiers Output of OLP
Volpr
OLP Input Voltage Range⁽³⁾
Open-Lamp Regulation Section
Iolr1
Error Amplifier Source Current for
Iolr2
Open-Lamp Regulation
Volr1
Open-Lamp Regulation Voltage 1
Volr2
Open-Lamp Regulation Voltage 2
Volr3
Open-Lamp Regulation Voltage 3
GmOLR
OLR Error Amplifier
Trans-conductance
Iors
OLR Error Amplifier Sink Current
Iolri
OLR Input Current
Iolro
OLR Output Current
Volrr
OLR Input Voltage Range⁽³⁾
Test Conditions Min. Typ. Max. Unit
ADIM=0V, TA=25°C
ADIM=0V
ADIM=0.5V
ADIM=1.0V
1.225 1.310 1.402
1.212 1.310 1.408
V
1.16
0.99
OLP=2.5V, ADIM=2.5V
63
76
94
µA
OLP=0V, ADIM=0V
-65
-50
-35
µA
CMP=3V
-1.4 -1.0 -0.6
µA
BDIM=5V, BCT=0V
41
52
63
µA
OLP=2V
0
µA
OLP=-2V
-30
-20
-10
µA
OLP=0.3V
0.34
V
OLP=1.5V
1.55
V
-4
4
V
Striking, OLR=1.6V
OLR Sweep
OLR Sweep
Striking, OLR Sweep
Normal, OLR=2.5V
OLR=2.5V
OLR=-2.5V
-3.4 -2.8 -2.3
µA
0
µA
1.24 1.34 1.44
V
1.88 1.98 2.08
V
2.1
2.2
2.3
V
180 310 440 µmho
40
60
80
µA
0
µA
-35
-25
-15
µA
-4
4
V
Continued on the following page…
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FAN7318B • 1.0.0
7
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