Optical Proximity Sensor and Ambient Light Sensor with IrLED RPR-0521RS Datasheet General Description LED RPR-0521RS is a module which integrates optical proximity, digital ambient light sensor IC, and infrared (IrLED). Proximity sensor (PS) part detects the human or object approaching by the reflection of IrLED light. Ambient light sensor (ALS) part detects the wide range of illumination from the dark environment to the direct sun light. The illuminant intensity of LCD display and keypad can be adjusted by using RPR-0521RS. It enables lowering current consumption and/or improving the visibility under the bright environment. Features 2 1) Compatible to I C bus interface ( f/s mode support ) 2) Compatible to 1.8V logic interface 3) Low Current consumption by power down function/mode 4) There are two ALS outputs peaks of spectrum responses are in visible light (Data0) and in infrared light (Data1) for calculating illuminance. 5) Correspond to very wide range of light intensity 6) Rejecting 50Hz/60Hz light noise (ALS function) 2 7) Detection range of proximity sensor is around 1 - 100mm (adjustable by I C) 8) Built-in current configurable IrLED driver Application Smart phone, Mobile phone, Digital Still Camera, Portable game, Camcoder, PDA, LCD display etc. Absolute maximum ratings ( Ta = 25 ) Parameter Symbol Limits Units VDD Supply Voltage Vddmax 4.5 V SDA, SCL Terminal Voltage Vsdamax, Vsclmax 4.5 V LEDA,LDR, INT Terminal Voltage Vledamax, Vldrmax, Vintmax 7 V Operating Temperature Topr -2585 Storage Temperature Tstg -3085 INT, SDA Sink Current Imax 7 mA Operating conditions Parameter Symbol Min. Typ. Max. Units VDD Supply Voltage Vdd 2.5 3.0 3.6 V VLEDA Voltage Vleda 2.8 3.0 5.5 V Vint INT Terminal Voltage 5.5 V www.rohm.com 1/24 c 2016 ROHM Co., Ltd. All rights reserved. 2016.01.28 - Rev.001 RPR-0521RS Datasheet Electrical characteristics ( VDD= 3.0V, Ta = 25, and all registers are default unless otherwise noted. ) Parameter Symbol Min. Typ. Max. Units Conditions *1 EV = 10 lx Supply current for ALS Icc1 10 90 300 uA MODE CONTROL(41h) =89h Supply current for PS Icc2 10 90 200 uA MODE CONTROL(41h) =49h MODE CONTROL(41h)=00h, Standby mode current Icc3 0.1 1.0 2.0 uA No input light *1 EV = 10 lx Calculated Lx Lx 6 10 14 lx MODE CONTROL(41h)=89h ALS PS CONTROL(42h)=02h No input light Dark ( 0 lx ) Sensor out in S0 0 5 count MODE CONTROL(41h)=89h TYPE0 ALS PS CONTROL(42h)=02h No input light Dark ( 0 lx ) Sensor out in S0 1 5 count MODE CONTROL(41h)= 89h TYPE1 ALS PS CONTROL(42h)=02h *2 MODE CONTROL(41h)=49h PS sensor out ( d=50mm) PS50 48 80 112 count LED current =100mA 2 Ambient irradiance = 0uW/cm PS sensor out PS0 10 count MODE CONTROL(41h)=49h (No proximity object) LED current =100mA MODE CONTROL(41h)=49h ILED pulse duration 1 twILED 1 80 200 300 us ILED pulse duration 2 twILED 2 110 330 500 us MODE CONTROL(41h)=69h LDR terminal sink current at ALS PS CONTROL ILED 22 25 28 mA LDR terminal voltage = 1.3V (42h) <1:0> = 00 INT output L Voltage VINTL 0 0.4 V Iint = 3mA SCL SDA input H Voltage VIH 1.26 V SCL SDA input L Voltage VIL 0.54 V SCL SDA input H / L Current IIHL -10 10 uA 2 I C SDA Output L Voltage VOL 0 0.4 V Iol = 3mA *1 White LED is used as optical source. Lx is calculated from ADC count valus. Object *2 Measuring Condition (90% reflective white sheet) d=50mm Product Object: 90% reflective white sheet (5050mm Kodak Gray Card Plus) Distance between the object and the product is 50mm. No glass or apertures is above the product. www.rohm.com 2/24 c 2016 ROHM Co., Ltd. All rights reserved. 2016.01.28 - Rev.001