SP4425CU データシートの表示（PDF） - Signal Processing Technologies

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SP4425CU

Electroluminescent Lamp Driver Low Voltage Applications

Signal Processing Technologies 

The following performance curves are intended to give the designer a relative scale from which to optimize

specific applications. Absolute measurements may vary depending upon the brand of components chosen.

5

4.5

4

3.5

3

2.5

2

1.5

1

0.5

0

1

Light Output

1.1

1.2

1.3

1.4

1.5

VDD (Volts)

Lamp = 1.5 sq. in., C1 = 0.1µF, C2 = 180pF, D1 = D1N4148

Inductors

µH/DCR

A 470/4

B 470/11

C 470/4

D 470/2.3

E 470/3.4

380

360

340

320

300

280

260

240

220

200

1

Lamp Frequency

1.1

1.2

1.3

1.4

VDD (Volts)

Inductors

µH/DCR

A 470/4

B 470/11

C 470/4

1.5

D 470/2.3

E 470/3.4

Lamp = 1.5 sq. in., C1 = 0.1µF, C2 = 180pF, D1 = D1N4148

SP4425DS/20

SP4425 Electroluminescent Lamp Driver

9

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