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Si1143-A10-GM bảng dữ liệu(PDF) 1 Page - Silicon Laboratories |
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Si1143-A10-GM bảng dữ liệu(HTML) 1 Page - Silicon Laboratories |
1 / 66 page Preliminary Rev. 0.5 1/11 Copyright © 2011 by Silicon Laboratories Si1141/42/43 This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Si1141/42/43 P ROXI MITY/A MBIEN T L IGHT S ENSOR IC WI T H I 2C I NTE R FACE Features Applications Description The Si1141/42/43 is a low-power, reflectance-based, infrared proximity and ambient light sensor with I2C digital interface and programmable-event interrupt output. This touchless sensor IC includes an analog-to-digital converter, integrated high- sensitivity visible and infrared photodiodes, digital signal processor, and one, two, or three integrated infrared LED drivers with fifteen selectable drive levels. The Si1141/ 42/43 offers excellent performance under a wide dynamic range and a variety of light sources including direct sunlight. The Si1141/42/43 can also work under dark glass covers. The photodiode response and associated digital conversion circuitry provide excellent immunity to artificial light flicker noise and natural light flutter noise. With two or more LEDs, the Si1142/43 is capable of supporting multiple-axis proximity motion detection. The Si1141/42/43 devices are provided in a 10-lead 2x2 mm QFN package and are capable of operation from 1.8 to 3.6 V over the –40 to +85 °C temperature range. 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 Handsets E-book readers Notebooks/Netbooks Portable consumer electronics Audio products Security panels Tamper detection circuits Dispensers Valve controls Smoke detectors Touchless switches Touchless sliders Occupancy sensors Consumer electronics Industrial automation Display backlighting control Photo-interrupters Pin Assignments LED1 VDD SCL GND INT 2 3 4 9 8 7 6 QFN-10 LED3 LED2 SDA 1 DNC 10 5 NC |
Số phần tương tự - Si1143-A10-GM |
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Mô tả tương tự - Si1143-A10-GM |
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