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LP3954TL/NOPB Datasheet(PDF) 46 Page - Texas Instruments

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Part # LP3954TL/NOPB
Description  Advanced Lighting Management Unit
PDF  60 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LP3954TL/NOPB Datasheet(HTML) 46 Page - Texas Instruments

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LP3954
SNVS340D – JUNE 2005 – REVISED MARCH 2013
www.ti.com
Adjustment
wled1_4[7:0]
Typical driver current (ma)
0000 0000
0
0000 0001
0.1
0000 0010
0.2
wled1_4[7:0]
Bits 7-0
0000 0011
0.3
0000 0100
0.4
…
…
1111 1101
25.3
1111 1110
25.4
1111 1111
25.5
WLED5-6 (0AH) – WLED5, WLED6 BRIGHTNESS CONTROL REGISTER
D7
D6
D5
D4
D3
D2
D1
D0
wled5_5[7:0]
rw-0
rw-0
rw-0
rw-0
rw-0
rw-0
rw-0
rw-0
Adjustment
wled5_6[7:0]
Typical driver current (ma)
0000 0000
0
0000 0001
0.1
0000 0010
0.2
wled5_6[7:0]
Bits 7-0
0000 0011
0.3
0000 0100
0.4
…
…
1111 1101
25.3
1111 1110
25.4
1111 1111
25.5
ENABLES (0BH) – ENABLES REGISTER
D7
D6
D5
D4
D3
D2
D1
D0
pwm_sync
nstby
en_boost
en_autoload
rgb_sel[1:0]
rw-0
rw-0
rw-0
r-0
r-0
rw-1
rw-0
rw-0
0 – synchronization to external clock disabled
pwm_sync
Bit 7
1 – synchronization to external clock enabled
0 – LP3954 standby mode
nstby
Bit 6
1 – LP3954 active mode
0 – boost converter disabled
en_boost
Bit 5
1 – boost converter enabled
0 – internal boost converter active load off
en_autoload
Bit 2
1 – internal boost converter active load on
Color LED control mode selection
rgb_sel[1:0]
Audio sync connected
Pattern generator
to
connected to
00
none
RGB1 & RGB2
rgb_sel[1:0]
Bits 1-0
01
RGB1
RGB2
10
RGB2
RGB1
11
RGB1 & RGB2
none
46
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Copyright © 2005–2013, Texas Instruments Incorporated
Product Folder Links: LP3954



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