AS1170 datasheet(18/53 Pages) AMSOSRAM

부품명	AS1170

상세설명	AS1170 High current LED/VCSEL driver

PDF	53 Pages

Scroll/Zoom	100%

제조업체	AMSOSRAM [ams-OSRAM AG]

홈페이지	https://ams-osram.com/

Logo

18 / 53 page

AS1170

Detailed description

Datasheet

• PUBLIC • Document Feedback

DS001083

• v2-00 • 2024-Feb-05

18 / 53

Figure 17: Internal circuit of 4 MHz / 1 MHz selection

(1) For simplicity Figure 17 shows only a single current sink.

7.3

Protection and fault detection functions

The protection functions protect the AS1170 and the LED(s) against physical damage. In most

cases a fault register bit is set, which can be readout by the I²C interface. The fault bits are

automatically cleared by an I²C readout of the fault register. Additionally the DCDC is stopped

and the current sinks are disabled5 by resetting out_on=0, mode_setting=00.

7.4

Overvoltage protection

In case of no or a broken LED(s) at the pin LED_OUT1/2 and an enabled DCDC converter, the

voltage on VOUT1/2 rises until it reaches VVOUTMAX (overvoltage condition) and the voltage

5 Applies for all faults.

AS1170 데이터시트(PDF) 18 Page - ams-OSRAM AG