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Si1147 - PROXIMITY/UV/AMBIENT LIGHT SENSOR

Download the Si1147 datasheet PDF. This datasheet also covers the Si1145 variant, as both devices belong to the same proximity/uv/ambient light sensor family and are provided as variant models within a single manufacturer datasheet.

General Description

Valve controls Smoke detectors Touchless switches Touchless sliders Occupancy sensors Consumer electronics Industrial automation Display backlighting control Photo-interrupters The Si1145/46/47 is a low-power, reflectance-based, infrared proxim

Key Features

  • Integrated infrared proximity detector.
  • Integrated UV index sensor.
  • Proximity detection adjustable from.
  • Industry's lowest power consumption under 1 cm to over 50 cm.
  • 1.71 to 3.6 V supply voltage.
  • Three independent LED drivers.
  • 9 µA average current (LED pulsed.
  • 15 current settings from 5.6 mA to 25.6 µs every 800 ms at 180 mA 360 mA for each LED driver plus 3 µA Si114x supply).
  • 25.6 µs LED driver pulse width.
  • < 500 nA standby current.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (Si1145-SiliconLaboratories.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Silicon Laboratories

Part Number Description
Si1147-M01 PROXIMITY/UV/AMBIENT LIGHT SENSOR MODULE
SI1141 PROXIMITY/AMBIENT LIGHT SENSOR IC
Si1141-M01 PROXIMITY/AMBIENT LIGHT SENSOR MODULE
SI1142 PROXIMITY/AMBIENT LIGHT SENSOR IC
Si1142-M01 PROXIMITY/AMBIENT LIGHT SENSOR MODULE

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Si1145/46/47 PROXIMITY/UV/AMBIENT LIGHT SENSOR IC WITH I2C INTERFACE Features  Integrated infrared proximity detector  Integrated UV index sensor Proximity detection adjustable from  Industry's lowest power consumption under 1 cm to over 50 cm 1.71 to 3.6 V supply voltage Three independent LED drivers 9 µA average current (LED pulsed 15 current settings from 5.6 mA to 25.6 µs every 800 ms at 180 mA 360 mA for each LED driver plus 3 µA Si114x supply) 25.6 µs LED driver pulse width < 500 nA standby current 50 cm proximity range with single Internal and external wake support pulse (<3 klx) Built-in voltage supply monitor and 15 cm proximity range with single power-on reset controller pulse (>3 klx) 25.