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CM9330 Datasheet(PDF) 5 Page - California Micro Devices Corp

Part # CM9330
Description  Asymmetrical High Efficiency Three Channel Boost LED Driver
PDF  10 Pages
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Manufacturer  CALMIRCO [California Micro Devices Corp]
Direct Link  http://www.calmicro.com
Logo CALMIRCO - California Micro Devices Corp

CM9330 Datasheet(HTML) 5 Page - California Micro Devices Corp

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© 2006 California Micro Devices Corp. All rights reserved.
04/26/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
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Tel: 408.263.3214
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Fax: 408.263.7846
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www.cmd.com
5
CM9330
PRELIMINARY
ILED vs. VIN
19.0
19.2
19.4
19.6
19.8
20.0
20.2
20.4
20.6
20.8
21.0
21.2
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
VIN (V )
Interleave
L = 4.7uH
4 WLED/ch
TA = 25 ºC
ILED2
ILED3
ILED1
EFFICIENCY v.s VIN
75
80
85
90
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
VIN (V )
Interleave
ILED1,2,3 = 20mA
L = 4.7uH
4 WLED/ch
EFFICIENCY vs. INDUCTOR
65
70
75
80
85
90
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
VIN (V )
ILED1,2,3 = 20 mA
4 WLED/ch
TA = 25 ºC
L=4.7uH
L=3.3uH
L=2.7uH
L=1.5uH
L=10uH
L=15uH
EFFICIENCY vs. STRING CONFIGURATION
74
76
78
80
82
84
86
88
90
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
VIN (V )
Interleave
L = 4.7uH
CH1,2,3 = 4W+3W+2W
TA = 25 ºC
ILED=20mA+20mA+20mA
ILED=5mA+10mA+20mA
ILED=20mA+10mA+5mA
EFFICIENCY vs. ILED
60
65
70
75
80
85
90
0
5
10
15
20
25
30
35
ILED (m A)
L = 4.7uH
4 WLED/ch
TA = 25 ºC
Vin=5.6V
4.2V
3.6V
3.0V
2.7V
ILED vs. VIN (high curre nt)
70
80
90
100
110
120
130
140
150
160
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
VIN (V )
No-Interleave
TA = 25 ºC
L=10uH, 3W+4W+4W, 60mA+40mA+40mA
L=10uH, 4W +4W+4W, 60mA+40mA+40mA
L=10uH, 4W+4W+4W, 40mA+40mA+40mA
L=4.7uH, 4W+4W+4W, 40mA+40mA+40mA
L=4.7uH, 4W+4W+4W, 35mA+30mA+30mA
Typical Performance Curves



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