A Product Line of
Diodes Incorporated
ZXLD1371
Typical Characteristics – Boost Mode – I LED = 350mA – GI RATIO = 0.23 – Bootstrap comparison
0.45
0.43
T A = 25 ° C, L = 33μH
R S = 150m Ω , R9 = 120k Ω
0.41
0.39
0.37
0.35
0.33
0.31
0.29
0.27
8 LEDs
8 LEDs Bootstrap
R10 = 36k Ω , C IN = 100μF
0.25
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
V IN (V)
500
450
400
350
300
250
200
150
100
50
0
8 LEDs
8 LEDs Bootstrap
T A = 25 ° C, L = 33μH
R S = 150m Ω , R9 = 120k Ω
R10 = 36k Ω , C IN = 100μF
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
V IN (V)
100
90
8 LEDs Bootstrap
80
70
60
8 LEDs
50
40
T A = 25 ° C, L = 33μH
R S = 150m Ω , R9 = 120k Ω
R10 = 36k Ω , C IN = 100μF
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
V IN (V)
ZXLD1371
Document number: DS35436 Rev. 1 - 2
13 of 42
www.diodes.com
February 2012
? Diodes Incorporated
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