Zxld1371, Typical characteristics – boost – Diodes ZXLD1371 User Manual

Page 13

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ZXLD1371

ZXLD1371

Document number: DS35436 Rev. 1 - 2

13 of 42

www.diodes.com

February 2012

© Diodes Incorporated

A Product Line of

Diodes Incorporated

Typical Characteristics – Boost

Mode – I

LED

= 350mA – GI

RATIO

= 0.23 – Bootstrap comparison

6

5

7

8

10

9

11

12

13

14

15

16

17

18

19

20

V (V)

IN

T = 25 C, L = 33µH

R = 150m , R9 = 120k

R10 = 36k , C = 100µF

A

S

IN

°

Ω

Ω

Ω

0.25

0.27

0.29

0.33

0.31

0.35

0.37

0.39

0.41

0.43

0.45

LE

D

C

U

R

R

EN

T

(A

)

8 LEDs

8 LEDs Bootstrap

6

5

7

8

10

9

11

12

13

14

15

16

17

18

19

20

V (V)

IN

T = 25 C, L = 33µH

R = 150m , R9 = 120k

R10 = 36k , C = 100µF

A

S

IN

°

Ω

Ω

Ω

8 LEDs Bootstrap

8 LEDs

0

50

100

150

200

250

300

350

400

450

500

SW

IT

C

H

IN

G

F

R

E

Q

U

EN

C

Y

(k

H

z)

6

5

7

8

10

9

11

12

13

14

15

16

17

18

19

20

V (V)

IN

T = 25 C, L = 33µH

R = 150m , R9 = 120k

R10 = 36k , C = 100µF

A

S

IN

°

Ω

Ω

Ω

8 LEDs Bootstrap

8 LEDs

40

50

60

70

80

90

100

E

F

F

IC

IE

N

C

Y

%

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