Datasheet

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REGISTER2 (READ/WRITE) (TPS61052)
7 6 5 4 3 2 1 0
Memorylocation:02
Resetstate:011XX000
RESERVED,DONOTCARE
ADCOUTPUT , ADC[2:0](READONLY)
CURRENTLIMIT ,ILIM[1:0](WRITEONLY)
(1)
(2) (3)
Referto3-Bit ADCsectionformoredetails.
ILIM[1:0]canonlybewritenoncewhilstthedevice
isinshutdown.
00:1000mA (typ)
01:1500mA (typ)
10:1500mA (typ)
11:2000mA (typ)(default)
LEDfailureflagisresetafterreadoutoftheflag.
0:ProperLEDoperation
1:LEDfailed(openorshorted)
0:Normaloperation(default)
1: Thermalshutdowntripped
LEDFAILURE ,LF(READONLY)
OVERTEMP (READONLY)
(3)
Time-outflagisresetafterreadoutoftheflag.
MSB
LSB
REGISTER3 (READ/WRITE) (TPS6105X)
7 6 5 4 3 2 1 0
MSB
LSB
Memorylocation:03
Resetstate:11010001
5-bitunsignedbinarycoding.STIMcanonlybe
Writtenoncebeforethedevicehasenteredthe
flashlightmode.
Timer=STIMx32.8ms,defaultis557.6ms
SAFETY TIMER,STIM[4:0]
GENERAL PURPOSETIMER,DCTIM[2:0]
000:0.8%xITORCH
001:1.6%xITORCH
010:2.3%xITORCH
011:3.1%xITORCH
100:3.9%xITORCH
101:4.7%xITORCH
110:6.3%xITORCH(default)
111:8.6%xITORCH
IfMODE_CTRL =01andDIM=1,DCTIMsetstheaverageLEDcurrent
3-bitunsignedbinarycoding
Timer=DCTIMx1.02s
IfMODE_CTRL =11,DCTIMsetsthedurationofthetimertill TObitisset
TPS61050
TPS61052
SLUS525 – MARCH 2007
(1) Setting bits 3, 4 and 5 (whilst MODE_CTRL[1:0]=01 or 10) starts an LED forward voltage measurement.
(2) A write operation on bit 5 and 6 points to the ILIM[1:0] bits.
(3) A read operation on bit 5 and 6 points to the LF and ADC[2] bits.
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