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LP3954TL/NOPB Datasheet(PDF) 48 Page - Texas Instruments

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Part # LP3954TL/NOPB
Description  Advanced Lighting Management Unit
PDF  60 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LP3954TL/NOPB Datasheet(HTML) 48 Page - Texas Instruments

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LP3954
SNVS340D – JUNE 2005 – REVISED MARCH 2013
www.ti.com
Current control for high current flash driver
hc[1:0]
current
00
0.25×IMAX(FLASH)
hc[1:0]
Bits 2-1
01
0.50×IMAX(FLASH)
10
0.75×IMAX(FLASH)
11
1.00×IMAX(FLASH)
0 – high current flash driver disabled
en_hcflash
Bit 0
1 – high current flash driver enabled
PATTERN_GEN_CTRL (11H) – PATTERN GENERATOR CONTROL REGISTER
D7
D6
D5
D4
D3
D2
D1
D0
rgb_start
loop
log
r-0
r-0
r-0
r-0
r-0
rw-0
rw-0
rw-0
0 – Pattern generator disabled
rgb_start
Bit 2
1 – execution pattern starting from command 1
0 – pattern generator loop disabled (single patter)
loop
Bit 1
1 – pattern generator loop enabled (execute until stopped)
0 – color intensity mode 0
log
Bit 0
1 – color intensity mode 1
RGB1_MAX_CURRENT (12H) – RGB1 DRIVER INDIVIDUAL MAXIMUM CURRENT CONTROL REGISTER
D7
D6
D5
D4
D3
D2
D1
D0
ir1[1:0]
ig1[1:0]
ib1[1:0]
r-0
r-0
rw-0
rw-0
rw-0
rw-0
rw-0
rw-0
Maximum current for R1 driver
ir1[2:0]
Maximum output current
00
0.25×IMAX
ir1[1:0]
Bits 5-4
01
0.50×IMAX
10
0.75×IMAX
11
1.00×IMAX
1aximum current for G1 driver
ig2[1:0]
Maximum output current
00
0.25×IMAX
ig1[1:0]
Bits 3-2
01
0.50×IMAX
10
0.75×IMAX
11
1.00×IMAX
Maximum current for B1 driver
ib1[1:0]
Maximum output current
00
0.25×IMAX
ib1[1:0]
Bits 1-0
01
0.50×IMAX
10
0.75×IMAX
11
1.00×IMAX
RGB2_MAX_CURRENT (13H) – RGB2 DRIVER INDIVIDUAL MAXIMUM CURRENT CONTROL REGISTER
D7
D6
D5
D4
D3
D2
D1
D0
ir2[1:0]
ig2[1:0]
ib2[1:0]
rw-0
rw-0
rw-0
rw-0
rw-0
rw-0
rw-0
rw-0
48
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Copyright © 2005–2013, Texas Instruments Incorporated
Product Folder Links: LP3954



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