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AS1170 데이터시트(PDF) 26 Page - OSRAM GmbH

부품명 AS1170
상세설명  AS1170 High current LED/VCSEL driver
PDF  53 Pages
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제조업체  OSRAM [OSRAM GmbH]
홈페이지  http://www.osram.com
Logo OSRAM - OSRAM GmbH

AS1170 데이터시트(HTML) 26 Page - OSRAM GmbH

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AS1170
Detailed description
Datasheet
• PUBLIC • Document Feedback
DS001083
• v2-00 • 2024-Feb-05
26 / 53
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Figure 22: Low voltage current reduction waveform with short diagnostic-flash and main-flash phase
The different settings for vin_low_v_run allow a constant main flash current without dropping
VIN below vin_low_v_run.
7.5.8
Load balancing
To improve the efficiency of the AS1170 for LEDs with unmatched forward voltage and reduce
the internal power dissipation of the AS1170, set the bit load_balance_on=1. This bit can
change the currents through the LEDs by up to ±15% (up to 115%/85% of set current between
LED_OUT1 to LED_OUT2) to match the forward voltage of the LED better.



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