LM3559TLX National Semiconductor Corporation, LM3559TLX Datasheet - Page 27

• Manufacturer Part Number: LM3559TLX
• Description: Synchronous Boost Flash Driver With Dual 900 Ma High Side Current Sources 1.8a Total Flash Current
• Manufacturer: National Semiconductor Corporation

FLASH DURATION REGISTER
Bits [4:0] of the Flash Duration Register set the Flash Timeout
duration. Bits [6:5] set the switch current limit. (see
N/A
(Not used)
Bit 7
Current Limit Select Bits
00 = 1.4A Peak Current Limit
01 = 2.1A Peak Current Limit
10 = 2.7A Peak Current Limit
11 = 3.2A Peak Current Limit
(default)
(CL1)
Bit 6
(CL0)
Bit 5
TABLE 5. Flash Duration Register Descriptions
Flash timeout Select Bits
00000 = 32 ms timeout
00001 = 64 ms timeout
00010 = 96 ms timeout
00011 = 128 ms timeout
00100 = 160 ms timeout
00101 = 192 ms timeout
00110 = 224 ms timeout
00111 = 256 ms timeout
01000 = 288 ms timeout
01001 = 320 ms timeout
01010 = 352 ms timeout
01011 = 384 ms timeout
01100 = 416 ms timeout
01101 = 448 ms timeout
01110 = 480 ms timeout
01111 = 512 ms timeout (default)
10000 = 544 ms timeout
10001 = 576 ms timeout
10010 = 608 ms timeout
10011 = 640 ms timeout
10100 = 672 ms timeout
10101 = 704 ms timeout
10110 = 736 ms timeout
10111 = 768 ms timeout
11000 = 800 ms timeout
11001 = 832 ms timeout
11010 = 864 ms timeout
11011 = 896 ms timeout
11100 = 928 ms timeout
11101 = 960 ms timeout
11110 = 992 ms timeout
11111 = 1024 ms timeout
Table
Bit 4
(T4)
5).
27
Bit 3
(T3)
Bit 2
(T2)
Bit 1
(T1)
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Bit 0
(T0)