LM3533 Datasheet, PDF (45/53 Pages) Texas Instruments – Complete Lighting Power Solution for Smartphone Handsets

LM3533
TABLE 43. PATTERN GENERATOR FALL-TIME REGISTERS (ADDRESS 0x75, 0x85, 0x95, 0xA5)
Address
0x75
0x85
0x95
0xA5
Function
Pattern Generator 1 Fall-Time Register
Pattern Generator 2 Fall-Time Register
Pattern Generator 3 Fall-Time Register
Pattern Generator 4 Fall-Time Register
Bits [7:3]
Not Used
TABLE 44. PATTERN GENERATOR FALL-TIME REGISTER BIT SETTINGS
000 = 2048µs (Default)
001 = 262ms
010 = 524ms
011 = 1.049s
100 = 2.097s
101 = 4.194s
110 = 8.389s
111 = 16.78s
Bits [2:0]
t_FALL (from I_HIGH to I_LOW )
TABLE 45. LED STRING OPEN FAULT READBACK REGISTER (ADDRESS 0xB0)
Bit 7
(Not Used)
Bit 6
(LVLED5
Open)
0 = Normal
Operation
1 = Open
Bit 5
(LVLED4
Open)
0 = Normal
Operation
1 = Open
Bit 4
(LVLED3
Open)
0 = Normal
Operation
1 = Open
Bit 3
(LVLED2
Open)
0 = Normal
Operation
1 = Open
Bit 2
(LVLED1
Open)
0 = Normal
Operation
1 = Open
Bit 1
(HVLED2
Open)
0 = Normal
Operation
1 = Open
Bit 0
(HVLED1
Open)
0 = Normal
Operation
1 = Open
TABLE 46. LED STRING SHORT FAULT READBACK REGISTER (ADDRESS 0xB1)
Bit 7
(Not Used)
Bit 6
(LVLED5
Short)
0 = Normal
Operation
1 = Short
Bit 5
(LVLED4
Short)
0 = Normal
Operation
1 = Short
Bit 4
(LVLED3
Short)
0 = Normal
Operation
1 = Short
Bit 3
(LVLED2
Short)
0 = Normal
Operation
1 = Short
Bit 2
(LVLED1
Short)
0 = Normal
Operation
1 = Short
Bit 1
(HVLED2
Short)
0 = Normal
Operation
1 = Short
Bit 0
(HVLED1
Short)
0 = Normal
Operation
1 = Short
Bits [7:2]
Not Used
N/A
TABLE 47. LED FAULT ENABLE (ADDRESS 0xB2)
Bits [1]
LED Short Fault Enable
0 = Short Faults Disabled (Default)
1 = Short Faults Enabled
Bit 0
LED Open Fault Enable
0 = Open Faults Disabled (Default)
1 = Open Faults Enabled
Copyright © 1999-2012, Texas Instruments Incorporated
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