AS1170 datasheet(49/53 Pages) AMSOSRAM

tên linh kiện	AS1170

Giải thích chi tiết về linh kiện	AS1170 High current LED/VCSEL driver

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49 / 53 page

AS1170

Application information

Datasheet

• PUBLIC • Document Feedback

DS001083

• v2-00 • 2024-Feb-05

49 / 53

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.

AS1170 bảng dữ liệu(PDF) 49 Page - ams-OSRAM AG