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Optical Combo Sensor Integrated With IR LED

Optical Combo Sensor Integrated With IR LED

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AP3425/H/M
AP3425 is a module integrated with a digital ambient light sensor [ALS], a proximity sensor [PS], and an IR LED in a single package.
This device provides a multiple gain ALS function with linear response over various dynamic ranges and is well suited for applications under clear or darkened glass.
The proximity function is specifically targeted towards near field application and detects external object with simple configurable zone, controlled by registers. With multiple proximity gain control, multiple IR LED current control and 10-bit ADC output, this device is designed specially to fix low reflection objects, such as black hair.
The device supports an interrupt feature to improve system efficiency and several features that help to minimize the occurrence of false triggering. Through internal calibration and CMOS design, the AP3425 is designed to minimize device-to-device variations for ease of manufacturability.
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Key Features
Technical data
Datasheet

I2C interface (FS mode at 400k Hz)

Mode Select: ALS, PS+IR, ALS+PS+IR, PD, ALS once, SW Reset, PS+IR once and ALS+PS+IR once.

Built-in temperature compensation circuit

Wide operating temperature range (-30°C to +80°C)

Ambient Light Photo Sensor
‧ 16-bit effective linear output (0~65535)
‧ 4 user selectable dynamic range
‧ Anti-flicker rejection (reject 50/60Hz)
‧ High sensitivity at darkened glass
‧ Window loss compensation

Proximity Detector
‧ 10 bit effective linear output (0~1023)
‧ 4 programmable IR LED current output
‧ High ambient light suppression
‧ Cross talk compensation
‧ Paired with 940nm IR LED to avoid red light blinding

Form factor 4.0mm x 2.0 mm x 1.1 mm

RoHS compliant

Item Name

AP3425

Function

3-in-1 Digital ALS+PS+IR LED Module

Digital Resolution

I²C, 16-bit ALS, 10-bit PS

Package

8Ld ODFN

AP3425- 4.0*2.0*1.1mm

AP3425M- 4.35*2.35*3.25mm

AP3425H- 4.35*2.35*3.65mm

Supply Voltage (VDD)

2.4V ~ 3.6V

I²C Bus Pin Voltage (VBus)

1.7V ~ 3.6V

Operating Temperature (Tope)

-30℃ ~ +80℃

Active Supply Current (Idd)

170μA ~ 250μA

Shutdown Current (Ipd)

2μA ~ 5μA

Files

Size

AP3425/-X 1 Page Datasheet Rev1.04

(947.73KB)