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AS1181 数据表(PDF) 40 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) 40 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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Interrupts 32-38 can be managed with the following registers:
•
IRQ_ENABLE2 register (Address 0x1A3C)
•
IRQ_STATUS2 register (Address 0x1AA8)
•
IRQ_HISTORY2 register (Address 0x1AAE)
•
IRQ_MASK2 register (Address 0x1AB4)
Table 8: Interrupt sources 32-38
Bit
Source
Severity
Interrupt
type
Description
0
VLED_monitor_error
Critical
Pulse
VLED BIST
BIST is verifying VLED voltage comparators during
start-up if they toggle correctly.
1
vp18_monitor_error
Critical
Pulse
VP18 BIST
BIST is verifying VP18 voltage comparators during start-
up if they toggle correctly.
2
temp_detect_error
Critical
Pulse
Temperature BIST
BIST is verifying over and under temperature
comparators during start-up if they toggle correctly.
3
adc_bist_error
Critical
Pulse
ADC BIST
BIST is verifying internal ADC during start-up.
4
ls_overcurrent
Critical
Level
VGATE LOW BIST
BIST is verifying the gate drive signal of the current sink
NMOS. If internal Vgate is forced to 0V due to current
regulation interrupt is set.
5
driver_gate_short
Critical
Level
VGATE HIGH BIST
BIST is verifying the gate drive signal of the current sink
NMOS. If internal Vgate is forced to VP18 (maximum)
interrupt is set.
Note: indicating potential short of LNx to GND.
6
ldo_overcurrent
Critical
Level
LDO overcurrent
VP18 overcurrent. If external output current of VP18 is
larger >65mA interrupt is set.



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