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AS3677 データシート(PDF) 24 Page - ams AG

部品番号 AS3677
部品情報  Triple Channel Lighting Management Unit with DCDC step/up, ALS, 2xDLS(=DBC) and RGB Driver
PDF  68 Pages
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メーカー  AMSCO [ams AG]
ホームページ  http://www.ams.com
Logo AMSCO - ams AG

AS3677 データシート(HTML) 24 Page - ams AG

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AS3677
Datasheet - D e ta i l e d D e s c r i p t i o n
8.4.4
LED Pattern Generator
The LED pattern generator is capable of producing a pattern with 32 bits length and 1 second duration (31.25ms for
each bit). The pattern itself can be started every second, every 2
nd, 3rd up to 7th second3.
With this pattern all current sinks can be controlled. The pattern itself switches the configured current sources between
0 and their programmed current.
If everything else is switched off, the current consumption in this mode is IACTIVE. (excluding current through switched
on current source) and the charge pump, if required. The charge pump can be automatically switched on/off depending
on the pattern (set register cp_auto_on on page 16=1) to reduce the overall current consumption.
Table 28. Rgb1 current
Register
Addr: 0Bh
Rgb1 current
This register controls the RGB current sink current.
Bit
Bit Name
Default Access
Description
7:0
rgb1_current
0R/W
Defines current into Current sink RGB1
00h
0 mA
01h
0.1 mA
....
....
FFh
25.5 mA
Table 29. Rgb2 current
Register
Addr: 0Ch
Rgb2 current
This register controls the RGB current sink current.
Bit
Bit Name
Default Access
Description
7:0
rgb2_current
0R/W
Defines current into Current sink RGB2
00h
0 mA
01h
0.1 mA
....
....
FFh
25.5 mA
Table 30. Rgb3 current
Register
Addr: 0Dh
Rgb3 current
This register controls the RGB current sink current.
Bit
Bit Name
Default Access
Description
7:0
rgb3_current
0R/W
Defines current into Current sink RGB3
00h
0 mA
01h
0.1 mA
....
....
FFh
25.5 mA
3. All times can be extended by a factor of 8 by setting pattern_slow=1 (this result in a delay of up to 56s)



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