APDS-9300-020

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Full model: APDS-9300-020

Manufacturer: Broadcom (formerly Avago)

Device type: Digital ambient light sensor (ALS)

Package: CHIPLED-6 (2.65mm×2.20mm)

Operating voltage: 2.4V ~ 3.6V

Operating temperature: -30°C ~ +85°C

Interface type: I²C (address 0x39)

Detection range: 0.01 ~ 64k lux

Resolution: 16-bit (digital output)

Spectral response: Matches the human eye curve (CIE 1931)

Current consumption: 240μA (operating mode)

Standby current: 2.5μA (shutdown mode)

Sampling rate: 400kHz (I²C fast mode)

Description

The APDS-9300 is a low-voltage Digital Ambient Light Photo Sensor that converts light intensity to digital signal output capable of directI2C interface. Each device consists of one broadband photodiode (visible plus infrared) and one infrared photodiode. Two integrating ADCs convert thephotodiode currentsto adigital outputthatrepresents the irradiance measured on each channel. This digital output can be input to a microprocessor where illuminance (ambient light level) in lux is derived using an empirical formula to approximate the human-eye response.

Features

   1. Approximate the human-eye response

   2. Precise Illuminance measurement under diverse lighting conditions

   3. Programmable Interrupt Function with User-Defined Upper and Lower Threshold Settings

   4. 16-Bit Digital Output with I2C Fast-Mode at 400 kHz

   5. Programmable Analog Gain and Integration Time

   6. Miniature ChipLED Package

       Height - 0.55mm

       Length - 2.60mm

       Width   - 2.20mm

   7. 50/60-Hz Lighting Ripple Rejection

   8. Low 2.5-V Input Voltage and 1.8-V Digital Output

   9. Low Active Power (0.6 mW Typical) with Power Down Mode

 10. RoHS Compliant

Pin definition (CHIPLED-6)

Typical application circuit

             Smartphone backlight control:

                               VDD ─── 3.3V (0.1μF capacitor in parallel)

                               SDA ── MCU's I²C data line (pull up 4.7kΩ)

                               SCL ── MCU's I²C clock line (pull up 4.7kΩ)

                               INT ── MCU interrupt pin (for brightness mutation detection)

Applications

   1. Detection of ambient light to control display backlighting

       - Mobile devices – Cell phones, PDAs, PMP

       - Computing devices – Notebooks, Tablet PC, Key board

       - Consumer devices – LCD Monitor, Flat-panel TVs, Video Cameras, Digital Still Camera

   2. Automatic Residential and Commercial Lighting Management

   3. Automotive instrumentation clusters.

   4. Electronic Signs and Signals

Design considerations

   1. Optical layout:

       - Avoid stains blocking the light-sensitive window

       - Recommended light-transmitting hole design of more than 2mm

   2. Signal integrity:

       - I²C trace length <30cm

       - Avoid parallel traces with high-frequency signals

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