Introduction bus ic dc/dc converter motor driver ic ripple counter driver ic I/O ic Sensor interface ic sensor ic ip’s ÿ E 909.01 HALIOS® optical switch E 910.41 Hall sensor- and contact monitor E 910.84 PIR light controller E 910.92 PIR motion detector E 910.98 Hall sensor interface 4 *, par. out E910.99 PIR light controller for DC/AC E 909.05 HALIOS® multi-purpose sensor ÿ HALIOS® optical switch with high ambient light immunity features description ÿ Supply voltage range VDD 3V to 5.5V The IC is an optical switch based on the HALIOS® (High Ambient ÿ Operational up to 200kLux ambient light Light Independent Optical System) principle, which is very effec- ÿ Proximity, touch and switch function tive in suppressing ambient light and has inherent self calibrating ÿ Parameter adjustment and functional data properties to eliminate disturbances caused by housing reflec- read back via SPI tions and scratches. ÿ Status output for switch and proximity function ÿ – 40°C to + 85°C operating temperature The device is capable of indicating objects entering the detection ÿ TSSOP 16 / SO 16w package area of the sensor. Furthermore switching is recognized when an object touches the surface of the sensor. Both functions are avail- application able with the static output signals PROX and TOUCH. ÿ Waterproof switches ÿ Switch for antiseptic environment Additionally it is possible to detect the movement of objects in ÿ Switch with background lighting function the detection area. The sensor signal represents a change in re- in case of proximity detection E909.01 pinning Pin Name Description 1 AVDD Analog supply 2 TIN Transimpedance amplifier input 3 AGND Analog ground 4 LEDC Output compensation LED 5 DGND Digital ground 6 LEDS Output sending LED 7 DVDD Digital supply 8 ENSPI Enables the SPI 9 SWTO Select touch or toggle mode 10 TOUCH _ A/ LDB 11 TOUCH _ B/ MISO 12 SYO 13 PROX 14 SYI Synchronisation input 15 MOSI SPI “master output slave input” 16 SCK SPI serial clock flectivity of the detected obejct (e.g. finger, changing the distance ÿ Mechanic-less key pad arrays to the sensor) and can be read out via an SPI. ÿ Motion switch e.g. in vacuum cleaner application ÿ Proximity sensing ÿ Vandalism safe key pads package AVDD 1 16 TIN 2 15 AGND 3 14 LEDC 4 13 DGND 5 12 LEDS 6 11 DVDD 7 10 ENSPI 8 9 SCK MOSI SYI PROX SYO TOUCH_b/MISO TOUCH_a/LDB SWTO TSSOP 16 Output of the “Touch” function with an analog switch of typical 30Ω between pin 10 and pin 11. In SPI operation mode (ENSPI=HIGH) this pin is redefined to the LDB “chip select” input Output of the “Touch” function with an analogue switch of typical 30Ω between pin 10 and pin 11. In SPI operation mode this pin is redefined to the MISO “master input slave output” output Synchronisation output Proximity function output (active low) Block diagram AVDD DVDD DVDD TIN Filter Demod. SCK SPI MOSI Touch a / LDB LEDS Touch b / MISO LEDC EN_SPI control SWTO PROX SYI SYO E909.01 98 AVSS DVSS Note ELMOS Semiconductor AG (below ELMOS) reserves the right to make changes to the product contained in this publication without notice. ELMOS assumes no responsibility for the use of any circuits described herein, conveys no licence under any patent or other right, and makes no representation that the circuits are free of patent infringement. While the information in this publication has been checked, no responsibility, however, is assumed for inaccuracies. ELMOS does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of a life-support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications. Copyright © 2007 ELMOS Reproduction, in part or whole, without the prior written consent of ELMOS, is prohibited. www.elmos.de | [email protected] elmos product catalog 2007/2008 99