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LM3550 Datasheet(PDF) 22 Page - Texas Instruments

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Part # LM3550
Description  5A Flash LED Driver with Automatic VLED and ESR Detection for Mobile Camera Systems
PDF  37 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM3550 Datasheet(HTML) 22 Page - Texas Instruments

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SLE
bit7
OH2
bit6
OH1
bit5
OH0
bit4
FD3
bit3
FD2
bit2
FD1
bit1
FD0
bit0
MSB
LSB
Options Register
Register Address: 0xB0
LM3550
SNVS569B – MAY 2009 – REVISED MAY 2013
www.ti.com
Table 5. Torch Level Table (continued)
T2
T1
T0
Level
0
1
0
100 mA
0
1
1
120 mA
1
0
0
140 mA
1
0
1
160 mA
1
1
0
180 mA
1
1
1
200 mA
Table 6. Flash Level Table
F2
F1
F0
FB Voltage Level
0
0
0
30 mV
0
0
1
40 mV
0
1
0
50 mV
0
1
1
60 mV
1
0
0
70 mV
1
0
1
80 mV
1
1
0
90 mV
1
1
1
100 mV
Options Control Register Description
SLE: Strobe Level or Edge Sensitivity. '0' = Edge Sensitive, '1' = Level Sensitive
FD0-FD3: Flash Duration control bits (see Table 7).
OH0-OH2: Overhead Charge Voltage control bits (see Table 8).
Table 7. Time-out Duration Table
FD3
FD2
FD1
FD0
Time (msec)
0
0
0
0
16
0
0
0
1
32
0
0
1
0
48
0
0
1
1
64
0
1
0
0
80
0
1
0
1
96
0
1
1
0
112
0
1
1
1
128
1
0
0
0
144
1
0
0
1
160
1
0
1
0
176
1
0
1
1
192
1
1
0
0
208
1
1
0
1
224
1
1
1
0
240
1
1
1
1
512
22
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Copyright © 2009–2013, Texas Instruments Incorporated
Product Folder Links: LM3550



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