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LM3535 Datasheet(PDF) 15 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part # LM3535
Description  Multi-Display LED Driver with Ambient Light Sensing and Dynamic Backlight Control Compatibility
PDF  26 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3535 Datasheet(HTML) 15 Page - National Semiconductor (TI)

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TABLE 1. I
LED vs. Brightness Register Data
BankA or
ALS
Brightness
Data
% of
I
LED_MAX
BankA or ALS
Brightness
Data
% of I
LED_MAX
BankA or ALS
Brightness Data
% of I
LED_MAX
BankA or ALS
Brightness
Data
% of I
LED_MAX
0000000
0.000%
0100000
0.803%
1000000
4.078%
1100000
20.713%
0000001
0.166%
0100001
0.845%
1000001
4.290%
1100001
21.792%
0000010
0.175%
0100010
0.889%
1000010
4.514%
1100010
22.928%
0000011
0.184%
0100011
0.935%
1000011
4.749%
1100011
24.122%
0000100
0.194%
0100100
0.984%
1000100
4.996%
1100100
25.379%
0000101
0.204%
0100101
1.035%
1000101
5.257%
1100101
26.701%
0000110
0.214%
0100110
1.089%
1000110
5.531%
1100110
28.092%
0000111
0.226%
0100111
1.146%
1000111
5.819%
1100111
29.556%
0001000
0.237%
0101000
1.205%
1001000
6.122%
1101000
31.096%
0001001
0.250%
0101001
1.268%
1001001
6.441%
1101001
32.716%
0001010
0.263%
0101010
1.334%
1001010
6.776%
1101010
34.420%
0001011
0.276%
0101011
1.404%
1001011
7.129%
1101011
36.213%
0001100
0.291%
0101100
1.477%
1001100
7.501%
1101100
38.100%
0001101
0.306%
0101101
1.554%
1001101
7.892%
1101101
40.085%
0001110
0.322%
0101110
1.635%
1001110
8.303%
1101110
42.173%
0001111
0.339%
0101111
1.720%
1001111
8.735%
1101111
44.371%
0010000
0.356%
0110000
1.809%
1010000
9.191%
1110000
46.682%
0010001
0.375%
0110001
1.904%
1010001
9.669%
1110001
49.114%
0010010
0.394%
0110010
2.003%
1010010
10.173%
1110010
51.673%
0010011
0.415%
0110011
2.107%
1010011
10.703%
1110011
54.365%
0010100
0.436%
0110100
2.217%
1010100
11.261%
1110100
57.198%
0010101
0.459%
0110101
2.332%
1010101
11.847%
1110101
60.178%
0010110
0.483%
0110110
2.454%
1010110
12.465%
1110110
63.313%
0010111
0.508%
0111011
2.582%
1010111
13.114%
1110111
66.611%
0011000
0.535%
0110111
2.716%
1011000
13.797%
1111000
70.082%
0011001
0.563%
0111000
2.858%
1011001
14.516%
1111001
73.733%
0011010
0.592%
0111001
3.007%
1011010
15.272%
1111010
77.574%
0011011
0.623%
0111010
3.163%
1011011
16.068%
1111011
81.616%
0011100
0.655%
0111011
3.328%
1011100
16.905%
1111100
85.868%
0011101
0.689%
0111100
3.502%
1011101
17.786%
1111101
90.341%
0011110
0.725%
0111101
3.684%
1011110
18.713%
1111110
95.048%
0011111
0.763%
0111111
3.876%
1011111
19.687%
1111111
100.000%
GroupB and GroupC Brightness Levels = 2.5, 5, 7.5, 10, 12.5,
15, 17.5, 25mA
30082407
FIGURE 8. ALS Zone Register Description
Internal Hex Address: 0x40
ZONE0-ZONE2: ALS Zone information: '000’ = Zone0,
‘001’ = Zone1, ‘010’ = Zone2, ‘011’ = Zone3, ‘100’ = Zone4.
Other combinations not used
FLAG: ALS Transition Flag. '1' = Transition has occurred.
'0' = No Transition. The FLAG bit is cleared once the 0x40
register has been read.
15
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