SI1142

Si 11 4 1 / 4 2 /43 P R O X I M I T Y /A M BI E N T L I G H T S E N S O R I C WI T H I 2 C I N T E R F A C E Features Pin Assignments  QuickSense™ integrated infrared proximity detector Proximity detection adjustable from under 1 cm to over 1 m Three independent LED drivers 15 current settings from 5.6 mA to 360 mA for each LED driver 25.6 µs LED driver pulse width  500 mm proximity range with single pulse (<2.5 klx) 150 mm proximity range with single pulse (>2.5 klx) Operates at up to 128 klx (direct sunlight) Minimum reflectance sensitivity < 1 µW/cm2 High EMI immunity without shielded  packaging  QuickSense™ integrated ambient light sensor 10 mlx resolution possible, allowing   operation under dark glass 1 to 128 klx dynamic range possible across two ADC range settings 17-bit resolution Accurate lux measurements possible with IR correction algorithm 25.6 µs measurement cycle keeps total power consumption duty cycle low without compromising performance or noise immunity Industry's lowest power consumption 1.8 to 3.6 V supply voltage 9 µA average current (LED pulsed 25.6 µs every 800 ms at 180 mA plus 3 µA Si114x supply) < 500 nA standby current Internal and external wake support Built-in voltage supply monitor and power-on reset controller Serial communications Up to 3.4 Mbps data rate Slave mode hardware address decoding Small-outline 10-lead 2x2 mm QFN Temperature Range –40 to +85 °C DNC SDA SCL VDD INT 1 2 3 4 10 9 8 ...