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RPR-0521RS

Optical Proximity Sensor and Ambient Light Sensor with IrLED

The RPR-0521RS is a optical proximity sensor and ambient light sensor with irled from Rohm Semiconductor. View the full RPR-0521RS datasheet below including key specifications, electrical characteristics, absolute maximum ratings.

Official RPR-0521RS datasheet (PDF) — the source this page was extracted from.

Manufacturer

Rohm Semiconductor

Category

Sensors

Package

8-SMD Module

Lifecycle

Active

RPR-0521RS Key Specifications

ParameterValue
Mounting TypeSurface Mount
Operating Temperature-25°C ~ 85°C
Output TypeI2C
Package / Case8-SMD Module
Proximity DetectionYes
Supplier Device PackageModule
TypeAmbient
Supply Voltage2.5V ~ 3.6V

RPR-0521RS Overview

Part: RPR-0521RS — ROHM ELECTRONICS DALIAN CO., LTD.

Type: Optical Proximity Sensor and Ambient Light Sensor with IrLED

Description: A module integrating an optical proximity sensor, a digital ambient light sensor IC, and an infrared LED (IrLED), featuring I2C bus interface, 1.8V logic compatibility, and low current consumption.

Operating Conditions:

  • Supply voltage: 2.5–3.6 V
  • Operating temperature: -25 to 85 °C
  • VLEDA Voltage: 2.8–5.5 V
  • I2C SCL Clock Frequency: 0–400 kHz

Absolute Maximum Ratings:

  • Max supply voltage: 4.5 V
  • Max SDA, SCL Terminal Voltage: 4.5 V
  • Max LEDA, LDR, INT Terminal Voltage: 7 V
  • Max INT, SDA Sink Current: 7 mA
  • Max storage temperature: -30 to 85 °C

Key Specs:

  • Supply current for ALS: 90 μA (Typ, EV = 10 lx)
  • Supply current for PS: 90 μA (Typ, MODE_CONTROL(41h) = 49h)
  • Standby mode current: 1.0 μA (Typ, MODE_CONTROL(41h) = 00h)
  • Calculated Lx: 10 lx (Typ, EV = 10 lx)
  • PS sensor out (d=50mm): 80 count (Typ, LED current = 100mA)
  • ILED pulse duration 1: 200 μs (Typ, MODE_CONTROL(41h) = 49h)
  • LED Forward Voltage: 1.6 V (Typ, LED current = 100mA)
  • LED Peak Emission Wavelength: 940 nm (Typ)

Features:

  • Compatible to I2C bus interface (f/s mode support)
  • Compatible to 1.8V logic interface
  • Low Current consumption by power down function/mode
  • Two ALS outputs for visible light (Data0) and infrared light (Data1)
  • Correspond to very wide range of light intensity
  • Rejecting 50Hz/60Hz light noise (ALS function)
  • Detection range of proximity sensor is around 1 - 100mm (adjustable by I2C)
  • Built-in current configurable IrLED driver

Applications:

  • Smart phone
  • Mobile phone
  • Digital Still Camera
  • Portable game
  • Camcoder
  • PDA
  • LCD display

Package:

  • 8-pin package (dimensions in mm, tolerance ±0.2mm)

RPR-0521RS Features

    1. Compatible to I 2 C bus interface ( f/s mode support )
    1. Compatible to 1.8V logic interface
    1. Low Current consumption by power down function/mode
    1. There are two ALS outputs; peaks of spectrum responses are in visible light (Data0) and in infrared light (Data1) for calculating illuminance.
    1. Correspond to very wide range of light intensity
    1. Rejecting 50Hz/60Hz light noise (ALS function)
    1. Detection range of proximity sensor is around 1 - 100mm (adjustable by I 2 C)
    1. Built-in current configurable IrLED driver

RPR-0521RS Electrical Characteristics

( VDD= 3.0V, Ta = 25 °C , and all registers are default unless otherwise noted. )

*1 White LED is used as optical source. 'Lx' is calculated from ADC count valus.

ParameterSymbolMin.Typ.Max.UnitsConditions
Supply current for ALSIcc11090300μAEV = 10 lx *1 MODE_CONTROL(41h) =89h
Supply current for PSIcc21090200μAMODE_CONTROL(41h) =49h
Standby mode currentIcc30.11.02.0μAMODE_CONTROL(41h)=00h, No input light
Calculated LxLx61014lxEV = 10 lx *1 MODE_CONTROL(41h)=89h ALS_PS_CONTROL(42h)=02h
Dark ( 0 lx ) Sensor out in TYPE0S0_0--5countNo input light MODE_CONTROL(41h)=89h ALS_PS_CONTROL(42h)=02h
Dark ( 0 lx ) Sensor out in TYPE1S0_1--5countNo input light MODE_CONTROL(41h)= 89h ALS_PS_CONTROL(42h)=02h
PS sensor out ( d=50mm *2 )PS504880112countMODE_CONTROL(41h)=49h LED current =100mA
PS sensor out (No proximity object)PS0--10countAmbient irradiance = 0μW/cm 2 MODE_CONTROL(41h)=49h LED current =100mA
ILED pulse duration 1twILED 180200300usMODE_CONTROL(41h)=49h
ILED pulse duration 2twILED 2110330500usMODE_CONTROL(41h)=69h
LDR terminal sink current at LDR terminal voltage = 1.3VILED222528mAALS_PS_CONTROL (42h) <1:0> = '00'
INT output 'L' VoltageVINTL00.4VIint = 3mA
SCL SDAinput 'H' VoltageVIH1.26--V
SCL SDAinput 'L' VoltageVIL--0.54V
SCL SDAinput 'H'/'L'CurrentIIHL-10-10μA
I 2 C SDAOutput 'L' VoltageVOL0-0.4VIol = 3mA

Object: 90% reflective white sheet (50×50mm Kodak Gray Card Plus)

Distance between the object and the product is 50mm. No glass or apertures is above the product.

  • Transmitter Electrical characteristics ( Ta = 25 °C , unless otherwise noted. )
  • I 2 C bus timing characteristics ( VDD= 3.0V, Ta = 25 °C , unless otherwise noted. )
ParameterSymbolMin.Typ.Max.UnitsConditions
LED Forward VoltageVF-1.61.95VLED current =100mA
LED Peak Emission Wavelengthλ p-940-nm
ParameterSymbolMin.Typ.Max.UnitsConditions
----------------------------------------------------------------------------------------------
I 2 C SCL Clock Frequencyf SCL0-400kHz
I 2 C START Condition Hold Timet HD;STA0.6--us
I 2 C 'L' Period of the SCL Clockt LOW1.3--us
I 2 C 'H' Period of the SCL Clockt HIGH0.6--us
I 2 C S START Condition Set up timet SU;STA0.6--us
I 2 C Data Hold Timet HD;DAT0--us
I 2 C Data Setup Timet SU;DAT100--ns
I 2 C STOP Condition Set up Timet SU;STO0.6--us
I 2 C Bus Free Timet BUF1.3--us
I 2 C Data Vaild Timet VD;DAT--0.9us
I 2 C Data Vaild Acknowledge Timet VD;ACK--0.9us

RPR-0521RS Absolute Maximum Ratings

ParameterSymbolLimitsUnits
VDD Supply VoltageVddmax4.5V
SDA, SCL Terminal VoltageVsdamax, Vsclmax4.5V
LEDA,LDR, INT Terminal VoltageVledamax, Vldrmax, Vintmax7V
Operating TemperatureTopr-25 ~ 85°C
Storage TemperatureTstg-30 ~ 85°C
INT, SDASink CurrentImax7mA

RPR-0521RS Package Information

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