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AS1181 数据表(PDF) 39 Page - ams-OSRAM AG

部件名 AS1181
功能描述  8-channel LED/VCSEL driver with enhanced safety features
PDF  92 Pages
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制造商  AMSOSRAM [ams-OSRAM AG]
网页  https://ams-osram.com/
标志 AMSOSRAM - ams-OSRAM AG

AS1181 数据表(HTML) 39 Page - ams-OSRAM AG

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AS1181
Functional description
Datasheet • PUBLIC • Document Feedback
DS001139 • v3-00 • 2026-Apr-01
39 / 92
/
Bit
Source
Severity
Interrupt
type
Description
7
supply_undervoltage
Critical
Level
Undervoltage error on VP18 or VLED
Interrupt is set when there is an undervoltage error on
VP18 or VLED.
Thresholds:
VLED UV 2.3 - 2.5V
VP18 UV 1.72V
8
lp_short_open_error
Critical
Pulse/
level
LP short or open failure (BIST & continuous check)
The LP node (Anode of LEDs) is checked during BIST and
in continuous operation for any shortcut or open condition.
If this interrupt is set it is indicating wrong/malfunctioned
LED connection.
9
ln_short_open_error
Critical
Pulse/
level
LN short or open failure (BIST & continuous check)
The LN node (Cathode of LEDs) is checked during BIST
and in continuous operation for any shortcut or open
condition. If this interrupt is set it is indicating
wrong/malfunctioned LED connection.
10
idrive_feedback_error
Critical
Level
Digital vs. analog current comparison failure
Digital Feedback from current set DAC. Readback of 10-bit
current value and compared with programmed target
value. Checking if any DAC bit got stuck.
11
otp_test
Critical
Pulse
OTP read check error
Device checking if register content equals OTP content to
verify if OTP default settings are loaded correctly.
12
ram_bist
Critical
Pulse
RAM BIST error
RAM of device checked during start-up BIST
13
rom_bist
Critical
Pulse
ROM BIST error
ROM of device checked during start-up BIST
14
Not used
15
Not used



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