KA7543D datasheet(4/16 Pages) FAIRCHILD

No de pièce	KA7543D

Description	Advanced Feedback Dimming Ballast Control IC

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Fabricant	FAIRCHILD [Fairchild Semiconductor]

Site Internet	http://www.fairchildsemi.com

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KA7543

4

Absolute Maximum Ratings

Absolute Maximum Ratings (

−−−−25°°°°C≤≤≤≤Ta≤≤≤≤125°°°°C)

Electrical Characteristics

Unless otherwise specified, Vcc=12V, Ta=25

°C.

Parameter

Symbol

Value

Unit

Supply Voltage

VCC

30

V

Peak Drive Output Current

IOH, IOL

±300

mA

Drive Output Clamping Diodes

VO > VCC, or VO < -0.3

Iclamp

±10

mA

Operating Temperature Range

Topr

-25 to 125

°C

Storage Temperature Range

Tstg

-65 to 150

°C

Power Dissipation

Pd

1

W

Thermal Resistance (Junction-to-Air)

θja

123

°C/W

Parameter

Symbol

Value

Unit

Temperature Stability For Reference Voltage (Vref)

∆Vref(Typ)

20

mV

Temperature Stability For Operating Frequency (fs)

∆fs(Typ)

8

kHz

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Unit

UNDER VOLTAGE LOCK OUT SECTION

Start Threshold Voltage

VTH(st)

VCC increasing

8.7

9.5

10.3

V

UVLO Hysteresis

HY(st)

-

1.5

1.8

2.1

V

5V Reference Voltage(Note1)

V5

I5 = 0mA

4.9

5

5.1

V

SUPPLY CURRENT SECTION

Start Up Supply Current

IST

Vcc=8.5V

-

0.2

0.27

mA

Operating Supply Current

ICC

Output not switching

-

7

9

mA

Dynamic Operating Supply Current (Note1)

IDCC

fo = 50kHz, CI=1nF

-

8

12

mA

CURRENT AMPLIFIER SECTION (NOTE1)

Output Sink Current

Iea(i)

Vfb = 2V

12

15

18

µA

Output Source Current

Iea(o)

Vfb = 0V

12

15

18

µA

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