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AS1170 데이터시트(PDF) 49 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) 49 Page - OSRAM GmbH

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AS1170
Application information
Datasheet
• PUBLIC • Document Feedback
DS001083
• v2-00 • 2024-Feb-05
49 / 53
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Figure 32: Layout recommendation
(1) If component placement rules allow, move all components close to the AS1170 to reduce the area and length of Loop1 and
Loop2.
An additional 100 nF (e.g. Murata GRM155R61C104, > 50 nF @ 3 V, 0402 size) capacitor
CVIN2 in parallel to CVIN is recommended to filter high frequency noise for the power supply of
AS1170. This capacitor should be as close as possible to the GND/VIN pins of AS1170.
10.3
5 V operating mode
The AS1170 can be used to power a 5 V system (e.g. audio amplifier). The operating mode is
selected by setting register bit const_v_mode=1. In this operating mode, the current sinks are
disabled and cannot be switched on.
Information:
• There is always a diode between V
IN and VOUT1/2 due to the internal circuit.
Therefore VOUT1/2 cannot be completely switched off.



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