LM3533 Datasheet, PDF (37/53 Pages) Texas Instruments – Complete Lighting Power Solution for Smartphone Handsets

LM3533
TABLE 10. LOW-VOLTAGE CONTROL BANK BRIGHTNESS CONFIGURATION REGISTER BIT SETTINGS
Bits [7:4]
Not Used
Bit 3
Pattern Generator Enable
Bit 2
Mapping Mode
0 = Pattern Generator is disabled 0 = Exponential Mapping
for Control Bank_ (Default)
(Default)
1 = Pattern Generator is enabled 1 = Linear Mapping
for Control Bank_
Bits [1:0]
Current Control
0X = Control Bank_ is configured for
Brightness Register Current Control
via the respective Brightness Register
(Default)
10 = Control Bank_ is configured for
ALS current control via the ALSM2
Zone Target Registers
11 = Control Bank_ is configured for
ALS current control via the ALSM3
Zone Target Registers
TABLE 11. CONTROL BANK FULL-SCALE CURRENT REGISTERS (ADDRESS 0x1F, 0x20, 0x21, 0x22, 0x23, 0x24)
Address
0x1F
0x20
0x21
0x22
0x23
0x24
Function
Control Bank A Full-Scale Current Register
Control Bank B Full-Scale Current Register
Control Bank C Full-Scale Current Register
Control Bank D Full-Scale Current Register
Control Bank E Full-Scale Current Register
Control Bank F Full-Scale Current Register
TABLE 12. CONTROL BANK FULL-SCALE CURRENT REGISTER BIT SETTINGS
Bits [7:5]
Not Used
N/A
Bits [4:0]
Control A Full-Scale Current Select Bits
00000 = 5mA
:
:
10011 = 20.2mA (Default)
:
:
11111 = 29.8mA
The full-scale Current vs code is given by the following equation:
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