cat4003b ON Semiconductor, cat4003b Datasheet - Page 8

• Manufacturer Part Number: cat4003b
• Description: Constant Current Programmable Led Driver With 32 Dimming Levels
• Manufacturer: ON Semiconductor

Table 6. DIMMING LEVELS
Full Scale Current in %
EN/DIM
Current
100
97
94
90
87
84
81
77
74
71
68
65
61
58
55
52
LED
Shutdown
T
LED
Figure 13. EN/DIM Digital Dimming Timing Diagram
Dimming Pulses [n]
T
100%
LO
10
12
13
14
15
11
0
1
2
3
4
5
6
7
8
9
97% 94%
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T
HI
32 Levels
8
Full Scale Current in %
3%
0%
100
48
45
42
39
35
32
29
26
23
19
16
13
10
6
3
0
100%
T
PWRDWN
Dimming Pulses [n]
Shutdown
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32