E909-05 Datasheet, PDF (15/67 Pages) ELMOS Semiconductor AG – The HALIOS® multi purpose optical sensor is based on an optical bridge which provides a contactless detec-tion of gestures (e.g. movement of a finger).

HALIOS® MULTI-PURPOSE OPTICAL SENSOR WITH HIGH LIGHT IMMUNITY
E909.05
PRELIMINARY INFORMATION AUG 02, 2011
5.2.4 Power Down Sequence Considerations
During power down the chip will enter the reset state as soon as the core or IO supply leaves the specified
region bringing all pads into input configuration again.
Note!
It has to be assured that VDDIO – VDDC > -0.3V at any time during power up and power down.
5.3 Brown Out Detection
5.3.1 Timing Diagram
DVDD /
VDDI
VDD
DVDD/VDDI_OK
VBOHL
VDDmin
Brown-Out
Black-Out
t
Undefined behavior
Figure 5.3.1-1 Brown-Out timing diagram
5.3.2 Functional Description
The brown out detection of the chip will cause a reset whenever the core or IO power supply falls below the
specified region. An over-voltage protection is not implemented. The circuit will not be operational when the
core supply is below VDDmin. In these cases the power-on-reset will take care of proper reset generation.
This document contains information on a pre-production product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice.
ELMOS Semiconductor AG
Data Sheet 15 / 67
QM-No.: 25DS0014E.00