ZXLD1350 查看數據表（PDF） - Zetex => Diodes

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ZXLD1350

350mA LED driver with internal switch

Zetex => Diodes 

ZXLD1350

Typical operating conditions (continued)

100

95

90

85

80

75

70

5

Efficiency vs No. of LEDs

L=47uH, Rs=0.33 Ohms

1 LED

2 LED

3 LED

4 LED

5 LED

6 LED

7 LED

10

15

20

25

30

VIN (V)

Operating Frequency vs Input Voltage

L=47uH, Rs=0.33 Ohms

800

700

600

500

400

300

200

100

0

5

1 LED

2 LED

3 LED

4 LED

5 LED

6 LED

7 LED

10

15

20

25

30

VIN (V)

1

0.8

0.6

0.4

0.2

0

5

Duty Cycle vs Input Voltage

L=47uH, Rs=0.33 Ohms

1 LED

2 LED

3 LED

4 LED

5 LED

6 LED

7 LED

10

15

20

25

30

VIN (V)

Output Current Variation vs Supply Voltage

L=47uH, Rs=0.33 Ohms

20

15

10

5

0

-5 5

-10

1 LED

2 LED

3 LED

4 LED

5 LED

10

15

20

25

30 6 LED

7 LED

-15

VIN (V)

Issue 6 - April 2007

9

© Zetex Semiconductors plc 2007

www.zetex.com

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