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AS1181 Datasheet(PDF) 21 Page - ams-OSRAM AG

Part # AS1181
Description  8-channel LED/VCSEL driver with enhanced safety features
PDF  92 Pages
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Manufacturer  AMSOSRAM [ams-OSRAM AG]
Direct Link  https://ams-osram.com/
Logo AMSOSRAM - ams-OSRAM AG

AS1181 Datasheet(HTML) 21 Page - ams-OSRAM AG

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AS1181
Functional description
Datasheet • PUBLIC • Document Feedback
DS001139 • v3-00 • 2026-Apr-01
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7.1.3
Illumination sequence & STROBE mode
The illumination sequence always starts in IDLE state when a strobe is asserted.
The strobe will enter state “TRIGGERED” depending on the strobe delay defined in CH_DLY
register (Address 0x1A24) bit “TD_TRIGDLY”. The minimum trigger delay time is 45µs.
The state ILLUM lasts from the first channel that is turned on to the last channel that is turned
off. In STROBE mode the illumination duration is defined internally by the TD_ILLUM register
(Address 0x1A00).
Figure 20: Illumination sequence
7.1.3.1
Stagger delay
Stagger delay is controlled by CH_DLY register (Address 0x1A24) bit “TD_STAGGER” and
allows to add a delay before the next channel group is turned on/off.
Information:
• A group can contain 1 or more channels.



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