Diodes AL8806Q Manuel d'utilisateur télécharger pdf (Page 4)

AL8806Q

Document number: DS36905 Rev. 1 - 2

4 of 13

www.diodes.com

April 2014

© Diodes Incorporated

A

L8806Q

Typical Performance Characteristics (@T

A

= +25°C, unless otherwise specified.)



0

50

100

150

200

250

300

350

40

0

0 5 10 15 20 25 30

V (V)

Supply Current (not switching) vs. Input Current

IN

I (µA)

IN

V = 0V

V = V

T = 25C

CTRL

SE T IN

A

°

0

100

200

300

400

500

600

700

800

90

0

012 34 5

V(V)

Switching Frequency vs. V

CTRL

CTRL

V = 12V

1 LED

R = 150m

T = 25°C

IN

SET

A

Ω

Frequency (kHz)

L = 3 3µ H

L = 6 8µ H

L = 1 00 µ H

-60

-40

-20

0

20

40

60

80

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

V = V = 12V

T = 25C

SE T IN

A

°

I (µA)

CTRL

V (V)

I vs V

CTRL

CTRL CTRL

0

0.5

1

1.5

2

2.5

3

0 5 10 15 20 25 30

CTRL

A

V= Open

T = 25C

SE T IN

V = V

°

V (V)

V vs. Input Voltage

(CTRL pin o pen circuit)

IN

CTRL

V (V)

CTRL

2.48

2.49

2.50

2.51

2.52

-40 -15 10 35 60 85 11 0

Ambient Temperature (°C)

V vs. Temperatu re

CTRL

V = Open

V = V = 12V

CTRL

SE T IN

V (V)

CTRL

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5

T = 25°C

A

L =68µH

CTRL VOLTAGE (V)

LED Current vs. V

CTRL

LED

C

U

R

R

EN

T

(A)

R = 68m

SET

Ω

R = 100m

SET

Ω

R = 150m

SET

Ω

1 2 3 4 5 6 7 8 9 ... 12 13

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