KA7543D データシートの表示（PDF） - Fairchild Semiconductor

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KA7543D

Advanced Feedback Dimming Ballast Control IC

Fairchild Semiconductor 

Electrical Characteristics (Continue)

Unless otherwise specified, Vcc=12V, Ta=25°C.

Parameter

Symbol

1 Lamp Feedback Voltage

Vfb1

2 Lamp Feedback Voltage

Vfb2

Output Voltage High

Vea(h)

Output Voltage Low

Vea(l)

OSCILLATOR SECTION(NOTE1)

Reference Frequency

fref

Reference Dead Time

td

Soft Start Frequency

fss

Soft Start Time Current

Iss

VOLTAGE INPUT DIMMING SECTION(NOTE1)

Dimming Voltage Range

∆Vdm

Dimming Start Voltage

Vdm

Initial Dimming Output Voltage

Vdm

OUTPUT 1/2 SECTION

Rising Time (Note2)

tr

Falling Time(Note2)

tf

Output Voltage With UVLO Activated Vomin(o)

PROTECTION SECTION

Lamp Detection Voltage

Vld

Abnormal Detection Voltage

Vab

Switch Off Detection Voltage

Vso

No Lamp Detect Voltage

Vnd

PROTECTION RESET SECTION

Protection Reset Voltage

Vpr

Conditions

Vld = 2V

Vld = 4V

Vfb = 0V

Vfb = 2V

VC = 3.0V

VC = 3.0V

VC = 0V

VC = 0V

-

Vdm = 0V

Vdm = 0V

Vcc =12V,CI =1nF

Vcc =12V,CI =1nF

VCC = 5V, IO =100µA

-

-

-

-

-

Notes :

1. This parameter should be tested in Vcc = 11V, 14V, 30V.

2. This parameter, although guaranteed, is not tested in production.

KA7543

Min. Typ. Max. Unit

0.425 0.5 0.575 V

0.85 1 1.15 V

5.5 5.7 5.9 V

-

- 0.4 V

37 45 53 kHz

1.2 1.4 1.6 µs

77 -

- kHz

9.2 11 12.8 µA

0

-

2V

3.85 4 4.15 V

-0.1 0 0.1 V

- 200 280 ns

- 50 90 ns

-

- 0.9 V

2.5 3 3.5 V

1.6 2 2.4 V

4.7 5 5.3 V

0.85 1 1.15 V

- 0.7 -

V

5

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