FAN7319 Datasheet, PDF (7/23 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 TA =
-25°C ~ 85°C are guaranteed by design based on final characterization results.
Symbol
Parameter
Error Amplifier Section
AV
Open-Loop Gain⁽³⁾
Gm
Error Amplifier Transconductance
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
Volpr
OLP Input Voltage Range⁽³⁾
Valim
ADIM Limit Voltage
Voff1
Error Amplifier Offset
Open-Lamp Regulation Section
Iolr1
Error Amplifier Source Current for
Open-Lamp Regulation
Iolr2
Volr1
Open-Lamp Regulation Voltage 1
Volr2
Open-Lamp Regulation Voltage 2
Volr3
Open-Lamp Regulation Voltage 3
Iolrsi
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
OLP = 2.25V
OLP = 0V
CMP = 2.7V
OLP = 2V
OLP = -2V
ADIM = 2V
TA = 25°C, VADIM = 1V
-25°C ≤ TA ≤ 85°C,
VADIM = 1V
24
dB
20
40
60 µmho
30
50
70
µA
20
40
60
µA
1.4
2.0
2.6
µA
38
52
66
µA
-1
0
1
µA
10
20
30
µA
-4
4
V
1.5
V
0.97 1.00 1.03
V
0.96 1.00 1.04
V
Striking, OLR =
Volr1+0.05
OLR = 3.1V
Striking
Striking
Normal, OLR = 3.5V
OLR = 2.5V
OLR = -2.5V
2.5
3.0
3.5
µA
-1
0
1
µA
1.85 2.00 2.15
V
2.8
3.0
3.2
V
3.05 3.25 3.45
V
15.0 42.5 70.0
µA
-1
0
1
µA
15
25
35
µA
-4
4
V
Continued on the following page…
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FAN7319 • 1.0.1
7
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