LX1994

Microsemi

Integrated Products Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 7

High Efficiency LED Driver

Copyright

© 2003

Rev. 1.0a, 2004-08-10

TM

®

6 LED EFFICIENCY (3.7V INPUT)

14 LED EFFICIENCY (3.7V INPUT)

50

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100

0

5

10

15

20

25

LED CURRENT

50

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70

80

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100

0

5

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LED CURRENT

HYS TERET IC MODE WAVEFORMS

CONTINUOUS MODE WAVEFORMS

blue = sense voltage

Green = inductor current

blue = sense voltage

Green = inductor current