LM3509SDEV National Semiconductor, LM3509SDEV Datasheet - Page 17

• Manufacturer Part Number: LM3509SDEV
• Description: BOARD EVALUATION FOR LM3509SD
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM3509SDEV

• Current - Output / Channel: 40mA
• Outputs And Type: 2, Non-Isolated
• Voltage - Output: 21V
• Features: Dimmable, I²C Interface
• Voltage - Input: 2.7 ~ 5.5V
• Utilized Ic / Part: LM3509
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TABLE 4. I
BMAIN or BSUB Brightness
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
Data
LED
vs. Brightness Register Data
FIGURE 9. I
% of ILED_MAX
0.000%
0.125%
0.625%
1.000%
1.125%
1.313%
1.688%
2.063%
2.438%
2.813%
3.125%
3.750%
4.375%
5.250%
6.250%
7.500%
MAIN
or I
SUB
17
vs BMAIN or BSUB Data
BMAIN or BSUB Brightness Data
10000
10001
10010
10011
10100
10101
10110
10111
11000
11001
11010
11011
11100
11101
11110
11111
% of ILED_MAX
100.000%
10.000%
12.500%
15.000%
16.875%
18.750%
22.500%
26.250%
31.250%
37.500%
43.750%
52.500%
61.250%
70.000%
87.500%
8.750%
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