Diodes AL8806Q Manuel d'utilisateur télécharger pdf (Page 5)

AL8806Q

Document number: DS36905 Rev. 1 - 2

5 of 13

www.diodes.com

April 2014

© Diodes Incorporated

A

L8806Q

Typical Performance Characteristics (cont.) (@T

A

= +25°C, unless otherwise specified.)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

0% 20% 40% 60% 80% 100%

PWM Duty Cycle

I vs. PWM Duty Cycle

LED

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

V = 12V

1 LED

R = 150m

L = 6 8µH

IN

SET

Ω

LED Current Error (%)

LED Current (A)

LED Current Error

I

LED

80

85

90

95

100

105

11 0

11 5

120

125

130

024 68

Time (µs)

SW Outp ut Switching Characteristics

-2

0

2

4

6

8

10

12

14

16

18

V

SW

V (mV)

SE NS E

R = 150m

L = 6 8µH

SET

Ω

V = 12V

1 LED Load

IN

V

SW

V

SE NS E

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

6 9 12 15 18 21 24 27 30

Input Voltage (V)

Duty Cycle vs. Inpu t Voltage

Ω

°

L = 3 3µ H

R = 150m

T = 25C

SET

A

2 LED

Duty Cycle

0

20

40

60

80

100

120

140

160

180

200

0 5 10 15

20 25 30

R (m)

DS(ON)

Ω

V (V)

R vs. Input Voltage

IN

DS(ON)

V = Open

V = V 12V

T = 25C

CTRL

SET IN

A

°

100

120

140

160

180

200

220

240

260

-40 -15 10 35 60 85 110

AMBIENT TEMPERATURE (°C)

SW R vs. Temperature

DS(ON)

V = Open

V = V 12V

CTRL

SET IN

R

(

m

)

DS(ON)

Ω

1 2 3 4 5 6 7 8 9 10 11 12 13

Commentaires sur ces manuels

Pas de commentaire