RPR-0521RS

Optical Proximity Sensor and Ambient Light Sensor with IrLED R PR-0 521R S Datasheet ● General Description RPR-0521RS is a module which integrates optical proximity, digital ambient light sensor IC, and infrared LED (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 VDD Supply Voltage SDA, SCL Terminal Voltage LEDA,LDR, INT Terminal Voltage Operating Temperature Storage Temperature INT, SDA Sink Current Symbol Vddmax Vsdamax, Vsclmax Vledamax, Vldrmax, Vintmax Topr Tstg Imax Limits 4.5 4.5 7 -25～85 -30～85 7 Units V V V ℃ ℃ mA ●Operating conditions Parameter VDD Supply Voltage VLEDA Voltage INT Terminal Voltage www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ Symbol Vdd Vleda Vint Min. 2.5 2.8 － 1/24 Typ. 3.0 3.0 － Max. 3.6 5.5 5.5 Units V V V 2016.01.28 - Rev.001 Datasheet RPR-0521RS ●Electrical characteristics ( VDD= 3.0V, Ta = 25℃, and all registers are default unless otherwise noted. ) Parameter Symbol Min. Typ. Max. Units Conditions Supply current for ALS Icc1 10 90 300 uA EV = 10 lx*1 MODE_CONTROL(41h) =89h Supply current for PS Icc2 10 90 200 uA MODE_CONTROL(41h) =49h Standby mode current Icc3 0.1 1.0 2.0 uA MODE_CONTROL(41h)=00h, No input light Calculated Lx Lx 6 10 14 lx EV = 10 lx*1 MODE_CONTROL(41h)=89h ALS_PS_CONTROL(42h)=02h Dark ( 0 lx ) Sensor out in TYPE0 S0_0 － － 5 count No input light MODE_CONTROL(41h)=89h ALS_PS_CONTROL(42h)=02h Dark ( 0 lx ) Sensor out in TYPE1 S0_1 － － 5 count No input light MODE_CONTROL(41h)= 89h ALS_PS_CONTROL(42h)=02h PS sensor out ( d=50mm*2) PS50 48 112 count MODE_CONTROL(41h)=49h LED current =100mA PS sensor out (No proximity object) 80 Ambient irradiance = 0uW/cm2 MODE_CONTROL(41h)=49h LED current =100mA MODE_CONTROL(41h)=49h PS0 － － 10 count ILED pulse duration 1 ILED pulse duration 2 LDR terminal sink current at LDR terminal voltage = 1.3V twILED 1 twILED 2 80 110 200 330 300 500 us us ILED 22 25 28 mA MODE_CONTROL(41h)=69h ALS_PS_CONTROL (42h) = “00” Iint = 3mA INT output 'L' Voltage VINTL 0 0.4 V SCL SDA input 'H' Voltage SCL SDA input 'L' Voltage VIH VIL 1.26 － － － － 0.54 V V SCL SDA input 'H'/'L'Current IIHL -10 － 10 uA I2C 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 (90% reflective white sheet) *2 Measuring Condition d=50mm Product 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. www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 2/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS ●Transmitter Electrical characteristics ( Ta = 25℃, unless otherwise noted. ) Parameter Symbol Min. Typ. Max. Units Conditions LED Forward Voltage VF － 1.6 1.95 V LED current =100mA LED Peak Emission Wavelength λp － 940 － nm ● I2C bus timing characteristics ( VDD= 3.0V, Ta = 25℃, unless otherwise noted. ) Parameter Symbol Min. Typ. Max. Units I C SCL Clock Frequency fSCL 0 － 400 kHz I C START Condition Hold Time tHD;STA 0.6 － － us I C 'L' Period of the SCL Clock I2C 'H' Period of the SCL Clock tLOW tHIGH 1.3 0.6 － － － － us us I2C S START Condition Set up time tSU;STA 0.6 － － us I C Data Hold Time I2C Data Setup Time I2C STOP Condition Set up Time tHD;DAT tSU;DAT tSU;STO 0 100 0.6 － － － － － － us ns us I2C Bus Free Time tBUF 1.3 － － us I2C Data Vaild Time I C Data Vaild Acknowledge Time tVD;DAT tVD;ACK － － － － 0.9 0.9 us us 2 2 2 2 2 Conditions I2C bus F/S-mode timing diagram www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 3/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS ● Package outlines ( φ 1 .1) ( 1. 22 ) D et ect or 2.3 6 (1 .67 ) ( 1.1 3) Emi tt er ( 0.8 7) 1. 35 3 .94 1 .81 5 1 .09 5 0 .12 5 0 .12 5 0 .84 5 1 .09 5 1 .81 5 0 .84 5 Stamp (For the control of our company) Stamp (Month, Day) 1P IN PI N 1 2 3 4 1- VD D 1 .0 25 2- SC L 3- GN D 0 .4 25 5 U 8 1 0 4 0 .4 25 4- LE DA 5- LE DK 6- LD R 7- IN T 1 .0 25 8- SD A 8 7 6 5 1) Unit: mm 2) Tolerance shall be ±0.2mm unless otherwise noted. PIN Symbol Description Number 1 VDD Supply Voltage 2 SCL I2C Clock, Input 3 GND Ground 4 LEDA LED Supply Voltage 5 LEDK LED Cathode 6 LDR LED Driver 7 INT PS or ALS Interrupt Pin, Open Drain 8 SDA I2C Serial Data, Input/Output www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 4/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS ● Block diagram and block explanation  I2C Interface I2C bus interface. f/s mode. 1.8V interface.  POR Power on reset function.  OSC Internal oscillator.  Timing Controller Internal management block for proximity sensor and ambient light sensor.  PS Control Logic This block controls proximity sensor ADC.  LED Pulse Gen LED current generator. LED current can be adjusted by ALS_PS_CONTROL (42h) register.  IrLED Driver. IrLED driver block.  PD_Visible + Infrared, PD_Infrared Photo diodes for ambient light sensor.  16bit ADC AD converter for ALS.  ALS Control Logic This block controls ambient light sensor ADC.  PD_PS Photo diode for proximity sensor.  DC Light Rejection Amp DC light is rejected in this block.  Linear ADC AD converter for proximity sensor. www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 5/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS ● Terminal description PIN No. 1 Terminal Name VDD Power supply terminal 2 SCL I2C bus Interface SCL terminal 3 GND GND terminal 4 LEDA LED supply voltage 5 LEDK 6 LDR LED Cathode, Please connect to LDR PIN when using internal LED driver circuit. Nch open drain LED terminal. LED current and emitting pulse width can be defined by internal register. 7 INT Nch open drain output. Interrupt setting is defined by internal register. 8 SDA C bus Interface SDA terminal www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ Equivalent Circuit 6/24 Function 2016.01.28 - Rev.001 Datasheet RPR-0521RS ●Structure figure ① ③ ① ② ④ ⑤ ⑤ ⑥ ⑦ ⑧ NO. ① ② ③ ④ ⑤ ⑥ ⑦ Name LSI Ir LED Au wire Insulating bonding paste Conductive bonding paste Transparent mold resin Light-resistant mold resin ⑧ PCB www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 7/24 Material Si GaAlAs Au Epoxy resin Ag + Epoxy resin Epoxy resin Epoxy resin Epoxy resin Cu,Ni,Au(Electrode) 2016.01.28 - Rev.001 Datasheet RPR-0521RS Unit:mm 12 5.5 1.55 0 ～0.5 φ1.5 ±0.1 ±0.05 2 ±0 . 0 5 4.35 ±0.05 1pin +0.1 0 1.75 φ1.5 4 ±0 . 1 ±0. Note）1.Unspecified tolerance shall be ±0.2. 2.Dimensions and marking of reels are in accordance with JEITA’s standard ET-7103A. 9.1 ● Taping standard 2.75 ±0.05 ±0 . 1 Pull direction φ 1 8 0- 3 +1 0 φ 60 φ13 0 1 5 . 4 ±1 Pull direction Packaging quantity: 2,500 pcs/reel www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 8/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS ● Packaging requirements 1. Packaging （１）Quantity per reel is 2,500pcs （２）Each reel are packed in aluminum bag. The size of aluminum bag is 240(a)×240(b)mm. （３）Aluminum bag is pressure sealed on all four directions. ｂ a 2. Label indication The following information shall be described on a aluminum bag label; ROHM type number, packaging quantity, and lot number 【Example】 TYPE NO. QR code Bar code Packaging quantity F 2,500pcs FOR ROHM ONLY 1416 00820S Bar code MADE IN CHINA Country of origin Inspection stamp 【Example of lot number marking】 １４ １６ ００８２０ Ｓ Factory mark Serial number of lot Manufacture week Manufacture year 3. Factory (Country of origin) ・ROHM ELECTRONICS DALIAN CO., LTD. (CHINA) www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 9/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS Attention points in handling This product is developed as an optical proximity sensor and ambient light sensor with IrLED; suitable for reflow soldering. Please take care of following points when using this device. 1. Storage There will be the possibility that the moisture influences the reliability of this product during the reflow soldering process. Hence, the product is packed in the anti-moisture bag. When using the product, please keep following conditions. ① Storage condition ・ ・Storage Temperature ： 5 ~ 30℃ Storage Humidity ： less than 70%RH ② Process after opening the bag ③ Baking (dry) process ・ ・ ・ ・ Please storage the product at the temperature between 5 ～30℃ and the moisture less than 70% RH within 168 hours. ・ ・If the above conditions aren’t kept, please apply the baking process. The baking process should be executed under the reel condition at 60℃±5℃ for 12～24 hours. During the baking process, the reel and emboss tape should be handled with care. 2. Designing of PCB The figure below is the recommended solder pattern. This pattern may need to be adjusted to mounting conditions and solder paste. 7 6 5 1 2 3 4 0. 85 8 0.72 2. 25 P0. 97 ×3=2.9 1 0.2 5 3. 63 3. Reflow soldering Number of reflow process shall be less than 2 times. When the second reflow process is performed, the interval between the first and the second reflow process shall be as short as possible to prevent absorption of moisture into the resin of the product. Cooling process to the room temperature shall be required between the first and the second reflow process. The following temperature condition is recommended for the reflow soldering. We would like you to evaluate your reflow condition because the condition is affected by the PCB size, the product heat-resistivity or the mount density www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 10/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS 4. Reflow temperature profile Package surface temperature （℃） www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 11/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS ● Command set Address TYPE default Register name 40h 41h 42h 43h 44h 45h 46h 47h 48h 49h 4Ah 4Bh 4Ch 4Dh 4Eh 4Fh 50h 51h 52h 53h 54h 92h RW RW RW RW R R R R R R RW RW RW RW RW RW RW RW RW RW RW R 0Ah 00h 02h 01h 00h 00h 00h 00h 00h 00h 00h FFh 0Fh 00h 00h FFh FFh 00h 00h 00h 00h E0h SYSTEM_CONTROL MODE_CONTROL ALS_PS_CONTROL PS_CONTROL PS_DATA_LSBs PS_DATA_MSBs ALS_DATA0_LSBs ALS_DATA0_MSBs ALS_DATA1_LSBs ALS_DATA1_MSBs INTERRUPT PS_TH_LSBs PS_TH_MSBs PS_TL_LSBs PS_TL_MSBs ALS_DATA0_TH_LSBs ALS_DATA0_TH_MSBs ALS_DATA0_TL_LSBs ALS_DATA0_TL_MSBs PS_OFFSET_LSBs PS_OFFSET_MSBs MANUFACT_ID Register function System control ALS, PS function setting ALS Gain, PS LED Driver PS Gain, PS interrupt persistence PS data low byte PS data high byte ALS DATA0 low byte ALS DATA0 high byte ALS DATA1 low byte ALS DATA1 high byte Interrupt control PS upper threshold low byte PS upper threshold high byte PS lower threshold low byte PS lower threshold high byte ALS DATA0 upper threshold low byte ALS DATA0 upper threshold high byte ALS DATA0 lower threshold low byte ALS DATA0 lower threshold high byte PS offset low byte PS offset high byte MANUFACT ID ● SYSTEM_CONTROL ( 40h ) Field Bit TYPE SW reset 7 RW INT reset 6 RW 5:0 R Part ID Description 0 : initial reset is not started 1 : initial reset is started 0 : INT pin status is not initialized 1 : INT pin become inactive ( high impedance ) 001010 default value 0Ah www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 12/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS ● MODE_CONTROL ( 41h ) Field Bit TYPE ALS_EN 7 RW PS_EN 6 RW PS_PULSE 5 RW PS Operating mode 4 RW 3:0 RW Measurement time Description 0 : ALS Standby 1 : ALS Enable 0 : PS Standby 1 : PS Enable 0 : PS LED pulse width is typ 200us 1 : PS LED pulse width is typ 330us (PS sensor out is doubled) 0 : normal mode 1 : twice measurement mode Shown in table below default value 00h Value 0000 0001 0010 0011 0100 0101 0110 0111 ALS standby standby standby standby standby 100ms 100ms 100ms PS standby 10ms 40ms 100ms 400ms 50ms 100ms 400ms Value 1000 1001 1010 1011 1100 1101 1110 1111 ALS PS 400ms *1 50ms 400ms *1 100ms 400ms *2 standby 400ms *2 400ms 50ms *3 50ms Forbidden Forbidden Forbidden Measurement time is 100ms, sleep time is 300ms. High sensitivity mode, measurement time is 400ms. *3 Additional software process is necessary. Please refer to P.18 *1 *2 ● ALS_PS_CONTROL ( 42h ) Field Reserved Bit 7:6 TYPE RW ALS DATA0 GAIN 5:4 RW ALS DATA1 GAIN 3:2 RW LED CURRENT 1:0 RW Description Write 00 Gain control of ALS DATA 0 00 : x1 Gain mode 01 : x2 Gain mode 10 : x64 Gain mode 11 : x128 Gain mode Gain control of ALS DATA 1 00 : x1 Gain mode 01 : x2 Gain mode 10 : x64 Gain mode 11 : x128 Gain mode 00 : 25mA 01 : 50mA 10 : 100mA 11 : 200mA default value 02h www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 13/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS ● PS_CONTROL ( 43h ) Field Bit TYPE Ambient_Ir_Flag 7:6 R PS_GAIN 5:4 RW PERSISTENCE 3:0 RW Description 00: Ambient infrared level is low 01: Ambient infrared level is high 11: Ambient infrared level is too high 00: PS GAIN ×1 01: PS GAIN ×2 10: PS GAIN ×4 11: Forbidden PS interrupt persistence setting 0000:Interrupt becomes active at each measurement end 0001:Interrupt status is updated at each measurement end 0010:Interrupt status is updated if two consecutive threshold judgments are the same 0011 or more: Interrupt status is updated if threshold judgments are the same over consecutive set times default value 01h ● PS_DATA_LSBs ( 44h ) Register PS_DATA_LSBs TYPE R 7 2 7 6 5 4 3 2 1 6 5 4 3 2 1 2 2 2 2 2 0 2 20 default value 00h ● PS_DATA_MSBs ( 45h ) Register TYPE PS_DATA_MSBs 7 6 5 4 3 11 2 1 10 0 2 28 default value 00h R 0 0 0 0 2 2 TYPE R 7 27 6 26 5 25 4 24 3 23 2 22 9 ●ALS_DATA 0_LSBs( 46h ) Register ALS_DATA0_LSBs 1 0 1 2 20 default value 00h ●ALS_DATA 0_MSBs( 47h ) Register TYPE 7 6 5 4 3 2 ALS_DATA0_MSBs R 215 214 213 212 211 210 1 TYPE 7 6 5 4 3 2 1 7 6 5 4 3 2 1 0 29 28 default value 00h ●ALS_DATA 1_LSBs( 48h ) Register ALS_DATA1_ LSBs R 2 2 2 2 2 2 0 2 20 default value 00h ●ALS_DATA 1_MSBs( 49h ) Register TYPE 7 6 5 4 3 2 ALS_DATA1_MSBs R 215 214 213 212 211 210 www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 14/24 1 0 29 28 default value 00h 2016.01.28 - Rev.001 Datasheet RPR-0521RS ● INTERRUPT ( 4Ah ) Field Bit TYPE PS INT STAUTS 7 R ALS INT STATUS 6 R INT MODE 5:4 RW INT ASSERT 3 RW INT LATCH 2 RW INT TRIG 1:0 RW Description 0 : PS interrupt signal inactive 1 : PS interrupt signal active 0 : ALS interrupt signal inactive 1 : ALS interrupt signal active 00 : Only PS_TH_H is effective 01 : PS_TH_H and PS_TH_L are effective as hysteresis 10 : PS_TH_H and PS_TH_L are effective as outside detection 11 : Forbidden 0 : Interrupt output ‘L’ is stable if newer measurement result is also interrupt active 1 : Interrupt output ‘L’ is de-assert and re-assert if newer measurement result is also interrupt active 0 : INT pin is latched until INTERRUPT register is read or initialized 1 : INT pin is updated after each measurement 00 : INT pin is inactive 01 : Triggered by only PS measurement 10 : Triggered by only ALS measurement 11 : Triggered by PS and ALS measurement default value 00h 1. In case of PS/ALS outside detection mode, interrupt signal inactive means that measurement result is within registered threshold level; interrupt signal active means measurement result is out of registered threshold level. 2. In case of PS hysteresis mode, once interrupt signal becomes active, INT status is kept until mea surement result becomes less than PS_TH_L register value. 3. Persistence is for PS only. 4. INT Pin become inactive (high impedance) if INTERRUPT register is read, initialized, or SW reset is started. ●PS_TH_LSBs ( 4Bh ) Register PS_TH_LSBs TYPE RW 7 27 6 26 5 25 4 24 3 23 2 22 1 21 0 20 default value FFh ● PS_TH_MSBs ( 4Ch ) Register PS_TH_MSBs TYPE RW 7 0 6 0 5 0 4 0 3 211 2 210 1 29 0 28 default value 0Fh ● PS_TL_LSBs ( 4Dh ) Register PS_TL_LSBs TYPE RW 7 27 6 26 5 25 4 24 3 23 2 22 1 21 0 20 default value 00h ● PS_TL_MSBs ( 4Eh ) Register PS_TL_MSBs TYPE RW 7 0 6 0 5 0 4 0 3 211 2 210 1 29 0 28 default value 00h www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 15/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS ●ALS_DATA0_TH_LSBs ( 4Fh ) Register ALS_DATA0_TL_ LSBs TYPE RW 7 27 6 26 5 25 4 24 3 23 2 1 0 22 21 20 default value FFh TYPE RW 7 215 6 214 5 213 4 212 3 211 2 1 0 210 29 28 default value FFh TYPE RW 7 27 6 26 5 25 4 24 3 23 2 1 0 2 1 2 2 20 default value 00h TYPE RW 7 215 6 214 5 213 4 212 3 211 2 1 0 10 9 2 2 28 default value 00h TYPE RW 7 27 6 26 5 25 4 24 3 23 2 22 ●ALS_DATA0_TH_MSBs ( 50h ) Register ALS_DATA0_TH_MSBs ● ALS_DATA0_TL_LSBs ( 51h ) Register ALS_DATA0_TH_LSBs ● ALS_DATA0_TL_MSBs ( 52h ) Register ALS_DATA0_TL_ MSBs ● PS _OFFSET_LSBs ( 53h ) Register PS_OFFSET_LSBs 1 21 0 20 default value 00h ● PS _OFFSET_MSBs ( 54h ) Field Resereved Bit 7:2 TYPE R Description Ignored PS_OFFSET_MSBs 1:0 RW Shown below default value 00h Register PS_OFFSET_MSBs TYPE RW 7 - 6 - 5 - 4 - 3 - 2 - 1 0 9 2 28 default value 00h When changed these registers, PS_DATA (44h,45h) becomes ([PS measured value])- ([PS offset value]) offset value]) ● MANUFACT_ID ( 92h ) Field MANUFACT_ID Bit 7:0 TYPE R Description 11100000 default value E0h www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 16/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS 2 ● I C bus communication 1) Slave address “0111000” (38h) 2) Main write format 1. Case of “Indicating register address” ST Slave Address 0111000 W 0 Indicate register address 010XXXXX ACK ACK SP 2. Case of "writing data register after indicating register address" ST Slave Address 0111000 W 0 Data specified at register address field Indicate register address 010XXXXX ACK Data ACK ACK ACK specified at register address field + N ACK SP RPR-0521RS continues to write data with address increments until master issues stop condition. Write cycle is 40h - 41h - 42h - 43h - 44h - 45h - 46h ……… 53h – 54h - 40h ……… Ex) If register address field is 42h, then RPR-0521RS writes data like below. 42h - 43h - 44h - 45h - 46h ……… 53h - 54h - 40h……. Register writing continues until master issues stop condition. 3) Main read format 1. Case of “Reading data after indicating register address” (Master issues restart condition) ST Slave Address 0111000 W 0 ST Slave Address 0111000 R 1 Data specified at register address field + 1 ACK Indicate register address 010XXXXX ACK ACK ACK Data specified at register address field ACK Data specified at register address field + N ACK NACK SP 2. Case of “Reading data from specified register address” ST Slave Address 0111000 Data specified at register address field + 1 R 1 ACK ACK Data specified at register address field ACK Data specified at register address field + N ACK NACK SP RPR-0521RS continues to read data from specified address field until master issues stop condition. Read cycle is 40h - 41h - 42h - 43h - 44h - 45h - 46h ……… 53h - 54h - 40h ……… Ex) If register address field is 53h, then RPR-0521RS reads data like below. 53h - 54h - 40h ……… Register reading continues until master issues stop condition. from master to slave from slave to master RPR-0521RS operates as I2C bus slave device. ※ Please refer formality I2C bus specification of NXP semiconductors. ※ www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 17/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS ●Notice in case of using ALS 50ms measurement mode At 50msec mode (MODE_CONTROL (41h) :"1100"), full scale count of ALS_DATA0 (46h, 47h) and ALS_DATA1 (48h, 49h) become half of other modes. ALS_DATA0 or ALS_DATA1 is a flag indicating the data overflow. Consequently, additional function as follows is necessary in software at 50msec mode. if (DATA0==1){DATA0=7FFFh} if (DATA1==1){DATA1=7FFFh} *This function is necessary at 50msec mode only. *This function must be executed before Lux calculation given ● PS twice measurement mode RPR-0521RS has two PS operating modes that can be selected by MODE_CONTROL(41h). At normal mode, PS measurement is done only once in each measurement period. At twice measurement mode, PS measurement is done twice in each measurement period. By using twice measurement mode, quicker response of interrupt is available than normal mode when persistence function is active. Mea surement Mea surementinterval interval ノーマルモード No rmal No rmal mo mo de de Twice 2 Twice 回測定モード surement meamea surement mo mo de de www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 18/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS ● Notice in case of changing register value When master changes a value of ALS_PS_CONTROL(42h) (For example, ALS gain), it is necessary to stop the ALS/PS measurement in progress and re-start the measurement from the beginning (“Interrupt & Re-start” sequence). The way to “Interrupt & Re-start” is to write some data to MODE CONTROL(41h). By writing both MODE_CONTROL(41h) and ALS_PS_CONTROL(42h) with address increments access, it is possible to change the register setting and “Interrupt & Re-start” the measurement at the same time. ● Power on reset function RPR-0521RS series have power on reset function. By operating this function, all of registers are reset when the power is supplied. Please note followings and design the application. ① Power on time : t1 t1 > 2ms RPR-0521RS series become operational after 2ms since VDD voltage crosses 2.0V from being less than 0.4V. ② Power off time :t2 t2 > 1ms Before the power is supplied, VDD voltage should be less than 0.4V at least for 1ms. VCC * “active “active” means that RPR-0521RS series are correctly operational. INT terminal is high impedance when VDD is supplied. When VDD voltage become less than 2.0V, the power should be supplied again in accordance with the above sequence. www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 19/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS ● Interrupt function Interrupt function compares ALS and PS measurement result to preset interrupt threshold level. Interrupt status can be monitored by INT pin. Interrupt function is able to be controlled by INTTERRUPT register ( 4Ah ). Interrupt persistence is defined at PERSIST register ( 43h ). Persistence function is for PS only. There are two output modes about interrupt function ( latched mode and unlatched mode ). INT pin is Nch open drain terminal, so this terminal should be pull-up to some kind of voltage source by an external resistance. INT terminal is high impedance when VCC is supplied. INT terminal keeps previous state when power down command is sent. So it is recommended to set INT terminal to high impedance before sending power down command. VDD current (approximately 25uA at VDD=2.5V) is consumed during INT terminal is active. INT terminal can be changed to high impedance by writing INT reset command, reading INTERRUPT register ( 4Ah ), or resetting software. ex1 ) In case of using PS ‘H’ threshold （INTERRUPT register 4Ah : ”00”） In case of unlatched mode, if the measurement value exceeds the PS interrupt threshold ‘H’ value, the interrupt becomes active. And if the measurement value is below the threshold ‘H’ value, the interrupt becomes inactive. In case of latched mode, once the interrupt becomes active, it keeps the status until INT reset command is sent or interrupt register is read. In case of persistence function is set to active, if the INT is inactive, it keeps inactive status until the measurement value exceeds the threshold ‘H’ value continuously. If the interrupt is active, it keeps active status until INT reset command is sent, interrupt register is read, or the measurement value is below threshold ‘H’ value continuously ( case of unlatched mode ). INT pin reset command is sent or master reads INTERRUPT Latched mode Unlatched mode Unlatched mode Persistence = 2 Active Inactive PS interrupt threshold level Sequential measurement result time www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 20/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS ex2 ) In case of using PS hysteresis mode （INTERRUPT register 4Ah : ” 01”） In case of unlatched mode, if the measurement value exceeds the PS interrupt threshold ‘H’ value, the interrupt becomes active. And if the measurement value is below the threshold ‘L’ value, the interrupt becomes inactive. In case of latched mode, once the interrupt becomes active, it keeps the status until INT reset command is sent or interrupt register is read. In case of persistence function is set to active, if the INT is inactive, it keeps inactive status until the measurement value exceeds the threshold ‘H’ value continuously. If the interrupt is active, it keeps active status until INT reset command is sent, interrupt register is read, or the measurement value is below threshold ‘L’ value continuously. INT pin reset command is sent or master reads INTERRUPT Latched mode Unlatched mode Unlatched mode Persistence = 2 Active Inactive PS interrupt threshold ‘H’ level PS interrupt threshold ‘L’ level Sequential measurement result time www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 21/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS ex3 ) In case of using PS outside threshold mode （INTERRUPT register 4Ah : ” 10”） In case of unlatched mode, if the measurement value is within the range set by PS interrupt threshold ‘H’ and ‘L’ value, the interrupt becomes inactive. And if the measurement value is out of the range set by threshold ‘H’ and ‘L’ value, the interrupt becomes active. In case of latched mode, once the interrupt becomes active, it keeps active status until INT reset command is sent, or interrupt register is read. INT pin reset command is sent or master reads INTERRUPT Latched mode Unlatched mode Active Inactive PS interrupt threshold ‘H’ level PS interrupt threshold ‘L’ level Sequential measurement result time www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 22/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS ex4 ) Ambient light sensor interrupt function In case of unlatched mode, if the measurement value (ALS_DATA0) is within the range set by ALS interrupt threshold ‘H’ and ‘L’ value, the interrupt becomes inactive. And if the measurement value (ALS_DATA0) is out of the range set by threshold ‘H’ and ‘L’ value, the interrupt becomes active. In case of latched mode, once the interrupt becomes active, it keeps active status until INT reset command is sent, or interrupt register is read. INT pin reset command is sent or master reads INTERRUPT Latched mode Unlatched mode Active Inactive ALS interrupt threshold ‘H’ level ALS interrupt threshold ‘L’ level Sequential measurement result time www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 23/24 2016.01.28 - Rev.001 Datasheet RPR-0521RS ● Cautions for using this product 1) Absolute Maximum Ratings An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions ( Topr ), etc., can break down devices, and make impossible to identify breaking mode such as short circuit or open circuit. If any special mode exceeding the absolute maximum ratings is assumed, consideration should be given to take physical safety measures including the use of fuses. 2) GND voltage It is necessary to keep the potential of the GND terminal at the minimum potential of all terminals at any time. 3) Short circuit between terminals and erroneous mounting In order to mount products on the set PCB, pay thorough attention to the direction and offset of the products. Erroneous mounting can break down the products. Furthermore, if a short circuit occurs due to foreign matters entering between terminals or between the terminal and the power supply or the GND terminal, the products can break down. 4) Operation in strong electromagnetic field Be noted that using products in the strong electromagnetic field can malfunction. 5) Inspection with set PCB In order to mount or dismount the set PCB to/from the jig for the inspection process, be sure to turn OFF the power supply. In addition, pay attention to protection against static electricity. 6) Dust or scratch Dusts or scratch on the photo detector may affect the optical characteristics. Please handle it with care. 7) Rush current When power is supplied to the product, it is possible that the internal logic may be unstable and rush current may flow instantaneously. Therefore, give special consideration to power coupling capacitance, power supply, and circuit design. www.rohm.com c 2016 ROHM Co., Ltd. All rights reserved. ○ 24/24 2016.01.28 - Rev.001 Notice Notes 1) The information contained herein is subject to change without notice. 2) Before you use our Products, please contact our sales representative and verify the latest specifications : 3) Although ROHM is continuously working to improve product reliability and quality, semiconductors can break down and malfunction due to various factors. Therefore, in order to prevent personal injury or fire arising from failure, please take safety measures such as complying with the derating characteristics, implementing redundant and fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no responsibility for any damages arising out of the use of our Poducts beyond the rating specified by ROHM. 4) Examples of application circuits, circuit constants and any other information contained herein are provided only to illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. 5) The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM or any other parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of such technical information. 6) The Products are intended for use in general electronic equipment (i.e. AV/OA devices, communication, consumer systems, gaming/entertainment sets) as well as the applications indicated in this document. 7) The Products specified in this document are not designed to be radiation tolerant. 8) For use of our Products in applications requiring a high degree of reliability (as exemplified below), please contact and consult with a ROHM representative : transportation equipment (i.e. cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety equipment, medical systems, servers, solar cells, and power transmission systems. 9) Do not use our Products in applications requiring extremely high reliability, such as aerospace equipment, nuclear power control systems, and submarine repeaters. 10) ROHM shall have no responsibility for any damages or injury arising from non-compliance with the recommended usage conditions and specifications contained herein. 11) ROHM has used reasonable care to ensur the accuracy of the information contained in this document. However, ROHM does not warrants that such information is error-free, and ROHM shall have no responsibility for any damages arising from any inaccuracy or misprint of such information. 12) Please use the Products in accordance with any applicable environmental laws and regulations, such as the RoHS Directive. For more details, including RoHS compatibility, please contact a ROHM sales office. ROHM shall have no responsibility for any damages or losses resulting non-compliance with any applicable laws or regulations. 13) When providing our Products and technologies contained in this document to other countries, you must abide by the procedures and provisions stipulated in all applicable export laws and regulations, including without limitation the US Export Administration Regulations and the Foreign Exchange and Foreign Trade Act. 14) This document, in part or in whole, may not be reprinted or reproduced without prior consent of ROHM. 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