Light Distance Sensor Proximity Sensing Chip - WH4517V

The light distance sensor proximity sensing chip - WH4517V is an optical digital converter that combines an ambient light sensor, proximity sensor, and high-efficiency VCSEL light. The sensor and VCSEL pitch is only 2.1mm, making it suitable for small IR hole designs. The ambient light sensor (ALS) has a built-in filter to suppress infrared and provides a spectral response close to the human eye. The ALS can operate from darkness to direct sunlight with a selectable detection range of about 40dB. It has good light ratio under different lighting conditions.

The proximity sensor (PS) has a built-in 940nm optical filter to resist ambient light, so the PS can eliminate reflected infrared light with high accuracy and excellent suppression performance.WH4517VIt has programmable interrupt function for ALS and PS with threshold-based hysteresis.

1. Features of distance sensor chip - WH4517V:

I2C interface (high-speed mode 400kHz/s)
Supply voltage range 2.4V ~ 3.6V
Operating temperature -40℃ ~ +85℃
Proximity sensor:
Ambient light immunity
Selectable gain and resolution (up to 12 bits)
Programmable PWM and LED current
Smart crosstalk calibration
Speed mode for improved response time

Ambient light sensor:

Spectral response close to human eye

Anti-flicker for fluorescent lamps

Selectable gain and resolution (up to 16 bits)

High sensitivity and wide detection range

High accuracy in bright and light ratio

2. Applications of distance sensor chip - WH4517V:

Mobile devices: mobile phones, tablets, PDAs, mobile POS

Consumer devices: LCD TVs, digital cameras, toys

Computing devices: laptops, LCD monitors