FAN7318A Просмотр технического описания (PDF) - Fairchild Semiconductor

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FAN7318A

LCD Backlight Inverter Drive IC

Fairchild Semiconductor 

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

Test Conditions Min.

Analog Dimming Section

AVrexx Reference Voltage

ADIM=0V, TA=25°C

ADIM=0V

ADIM=0.5V

1.244

1.231

ADIM=1.0V

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

OLP=2.5V, ADIM=2.5V

63

OLP=0V, ADIM=0V

-65

CMP=3V

-1.4

BDIM=5V, BCT=0V

41

OLP=2V

Iolpo

OLP Output Current

OLP=-2V

Vlpfx

Rectifiers Output of OLP

OLP=0.3V

OLP=1.5V

Volpr

OLP Input Voltage Range(3)

Open-Lamp Regulation Section

Iolr1

Iolr2

Volr1

Volr2

Volr3

GmOLR

Iors

Iolri

Iolro

Volrr

Error Amplifier Source Current for

Open-Lamp Regulation

Striking, OLR=1.6V

OLR Sweep

Open-Lamp Regulation Voltage 1

OLR Sweep

Open-Lamp Regulation Voltage 2

Striking, OLR Sweep

Open-Lamp Regulation Voltage 3

OLR Error Amplifier Transconductance

OLR Error Amplifier Sink Current

Normal, OLR=2.5V

OLR Input Current

OLR=2.5V

OLR Output Current

OLR Input Voltage Range(3)

OLR=-2.5V

Note:

3. These parameters, although guaranteed, are not 100% tested in production.

-30

-4

-3.4

1.24

1.88

2.1

180

40

-35

-4

Typ.

1.329

1.329

1.178

1.008

76

-50

-1.0

52

0

-20

0.34

1.55

-2.8

0

1.34

1.98

2.2

310

60

0

-25

Max.

1.421

1.427

94

-35

-0.6

63

-10

4

-2.3

1.44

2.08

2.3

440

80

-15

4

Unit

V

µA

µA

µA

µA

µA

µA

V

V

V

µA

µA

V

V

V

µmho

µA

µA

µA

V

© 2009 Fairchild Semiconductor Corporation

FAN7318A • 1.0.0

7

www.fairchildsemi.com

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