Fully Integrated Proximity and Ambient Light …

1 Semiconductors Rev. , 04-Nov-20201 Document Number: 84274 For technical questions, contact: DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT Integrated Proximity and Ambient Light Sensor WithInfrared Emitter, I2C Interface, and Interrupt FunctionLINKS TO ADDITIONAL RESOURCESDESCRIPTIONVCNL4040 integrates a Proximity sensor (PS), Ambient Light sensor (ALS), and a high power IRED into one small package. It incorporates photodiodes, amplifiers, and analog to digital converting circuits into a single chip by CMOS process. The 16-bit high resolution ALS offers excellent sensing capabilities with sufficient selections to fulfill most applications whether dark or high transparency lens design.

2 High and low interrupt thresholds can be programmed for both ALS and PS, allowing the component to use a minimal amount of the microcontrollers Proximity sensor features an intelligent cancellation scheme, so that cross talk phenomenon is eliminated effectively. To accelerate the PS response time, smart persistence prevents the misjudgment of Proximity sensing but also keeps a fast response time. In active force mode, a single measurement can be requested, allowing another good approach for more design flexibility to fulfill different kinds of applications with more power patented FiltronTM technology achieves Ambient Light spectral sensitivity closest to real human eye response and offers the best background Light cancellation capability (including sunlight) without utilizing the microcontrollers resources.

3 VCNL4040 provides an excellent temperature compensation capability for keeping output stable under various temperature configurations. ALS and PS functions are easily set via the simple command format of I2C (SMBus compatible) interface protocol. Operating voltage ranges from V to V. VCNL4040 is packaged in a lead (Pb)-free 8-pin molding package, which offers the best market-proven reliability Package type: surface-mount Dimensions (L x W x H in mm): x x Integrated modules: infrared emitter (IRED), Ambient Light sensor (ALS), Proximity sensor (PS), and signal conditioning IC Operates ALS and PS in parallel structure FiltronTM technology adoption for robust background Light cancellation Temperature compensation: -40 C to +85 C Low power consumption I2C (SMBus compatible) interface Floor life: 168 h, MSL 3, according to J-STD-020 Output type: I2C bus (ALS / PS) Operation voltage: V to V Material categorization.

4 For definitions of compliance please see FUNCTION Immunity to red glow (940 nm IRED) Programmable IRED sink current Intelligent cancellation to reduce cross talk phenomenon Smart persistence scheme to reduce PS response time Selectable for 12- / 16-bit PS output dataAMBIENT Light FUNCTION High accuracy of ALS 10 % Fluorescent Light flicker immunity Spectrum close to real human eye responses Selectable maximum detection range (819 / 1638 / 3277 / 6553) lux with highest sensitivity lux/stepINTERRUPT Programmable interrupt function for ALS and PS with upper and lower thresholds Adjustable persistence to prevent false triggers for ALS and PSAPPLICATIONS Handheld device Notebook, tablet PC Consumer device Industrial application333 DDD3D3D ModelsDesign Semiconductors Rev. , 04-Nov-20202 Document Number: 84274 For technical questions, contact: DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE.

5 THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT (1)Adjustable through I2C interfaceNotes(1)MOQ: minimum order quantity(2)The interposers are necessary when the component needs to be brought closer to a cover glass and the customers mechanical stack up does not allow for this with the standard height component (VCNL4040M3OE)PRODUCT SUMMARYPART NUMBEROPERATINGRANGE(mm)OPERATINGVOLTAGE RANGE(V)I2C BUSVOLTAGERANGE(V)IRED PULSECURRENT (1)(mA)AMBIENTLIGHTRANGE(lx)AMBIENTLIGHT RESOLUTION(lx)OUTPUTCODEADC RESOLUTIONPROXIMITY / Ambient Light VCNL40400 to to to to bit, I2C16 bit / 16 bitORDERING INFORMATIONORDERING CODEPACKAGINGVOLUME (1)REMARKSVCNL4040M3 OETape and reelMOQ: 2500 mm x mm x mmVCNL4040M3OE-H3 (2)MOQ: 1500 mm x mm x mmVCNL4040M3OE-H5 (2) mm x mm x mmABSOLUTE MAXIMUM RATINGS (Tamb = 25 C, unless otherwise specified)PARAMETERTEST temperature rangeTamb-40+85 CStorage temperature rangeTstg-40+100 CRECOMMENDED OPERATING CONDITIONS (Tamb = 25 C, unless otherwise specified)PARAMETERTEST temperature rangeTamb-40+85 CI2C bus operating frequencyf(I2 CCLK)10400kHzPIN DESCRIPTIONSPIN ASSIGNMENTSYMBOLTYPEFUNCTION1 GNDIG round2 CATHODEIC athode (sensor) connection3 VDDIP ower supply input4 ANODEIA node for IRED5 CATHODEIC athode (LED) connection6 INTOI nterrupt pin7 SDATI / O (open drain)I2C data bus data input / output8 SCLKII2C digital bus clock Semiconductors Rev.

6 , 04-Nov-20203 Document Number: 84274 For technical questions, contact: DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT DIAGRAMN otes(1)Test condition: VDD = V, temperature: 25 C(2)Maximum detection range to Ambient Light can be determined by ALS refresh time adjustment. Refer to table ALS Resolution and Maximum Detection Range (3)Based on IRED on / off duty ratio = 1/40, 1/80, 1/160, and 1/320 BASIC CHARACTERISTICS (Tamb = 25 C, unless otherwise specified)PARAMETERTEST currentExcluded LED drivingIDD300 ALight condition = dark, VDD = VIDD (SD) AI2C supply voltageVPULL shut downALS disable, PS enableIALSSD200 APS shut downALS enable, PS disableIPSSD260 AI2C signal inputLogic highVDD = highVDD = sensitivity wavelength of ALS p550nmPeak sensitivity wavelength of PS pps940nmFull ALS counts16-bit resolution65 535stepsFull PS counts12-bit / 16-bit resolution4096 / 65 535stepsALS sensing toleranceWhite LED Light source 10%Detectable intensityMinimumIT = 640 ms, 1 step (1)(2) = 80 ms, 65 535 step (1)(2)6553 ALS dark offsetIT = 80 ms, normal sensitivity (1)

7 03stepsPS detection rangeKodak white card0200mmOperating temperature rangeTamb-40+85 CCathode (sensor) driving current(3)200mAGNDI2C bus logiccontrolALSPDPSPDLED driverPDbufferLED_CATHODEVDDSCLKSDATINTA nodeIREDPD timingcontrollerDSPO scilatorTemperaturecompensationLow pass Semiconductors Rev. , 04-Nov-20204 Document Number: 84274 For technical questions, contact: DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT 1 - I2C Bus Timing DiagramI2C BUS TIMING CHARACTERISTICS (Tamb = 25 C, unless otherwise specified)PARAMETERSYMBOLSTANDARD MODEFAST frequencyf(SMBCLK)1010010400kHzBus free time between start and stop conditiont(BUF) sHold time after (repeated) start condition; after this period, the first clock is generatedt(HDSTA) sRepeated start condition setup timet(SUSTA) sStop condition setup timet(SUSTO) sData hold timet(HDDAT)3450900nsData setup timet(SUDAT)250100nsI2C clock (SCK) low periodt(LOW) sI2C clock (SCK) high periodt(HIGH) sClock / data fall timet(F)300300nsClock / data rise timet(R)1000300nsVIHVIHt(LOW)VILt(R)t(HD STA)t(BUF)VILt(HDDAT)t(F)t(HIGH)t(SUSTA) t(SUDAT)t(SUSTO){{PStop ConditionSStar Condition{{PSt(LOSEXT)t(LOWMEXT)t(LOWMEX T)SCLKACKSDAACKS tartStopt(LOWMEXT)I2C busCLOCK(SCLK)I2C busDATA(SDAT)I2C busCLOCK(SCLK)I2C busDATA(SDAT) Semiconductors Rev.}}}}

8 , 04-Nov-20205 Document Number: 84274 For technical questions, contact: DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT TIMING INFORMATIONFig. 2 - I2C Bus Timing for Sending Word Command FormatFig. 3 - I2C Bus Timing for Receiving Word Command FormatWSA6SA5SA4SA3SA2SA1SA7I2 CBus Slave Address ByteStart by MasterACK bySA6SA5SA4SA3SA2SA0SA7 Command CodeSA1 ACK bySA7SA6SA5SA4SA3SA2SA1SA0 ACK bySA7SA6SA5SA4SA3SA2SA1SA0 Stop byMasterACK byData Byte LowData Byte HighI2C busCLOCK(SCLK)I2C busDATA(SDAT)I2C busCLOCK(SCLK)I2C busDATA(SDAT)VCNL4040 VCNL4040 VCNL4040 VCNL4040I2 CBusCLOCK(SCLK)I2 CBusDATA(SDAT)WSA6SA5SA4SA3SA2SA1SA7I2 CBus Slave Address ByteStart by MasterACK bySA6SA5SA4SA3SA2SA0SA7 Command CodeSA1 ACK bySA7SA6SA5SA4SA3SA2SA1SA0 Stop byMasterACK byMasterData Byte HighI2 CBusCLOCK(SCLK)I2 CBusDATA(SDAT)I2 CBusCLOCK(SCLK)I2 CBusDATA(SDAT)RSA6SA5SA4SA3SA2I2 CBus Slave Address ByteStart by MasterACK bySA6SA5SA4SA3SA2SA0SA7 Data Byte LowSA1 ACK Semiconductors Rev.

9 , 04-Nov-20206 Document Number: 84274 For technical questions, contact: DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT PERFORMANCE CHARACTERISTICS (Tamb = 25 C, unless otherwise specified)Fig. 4 - Normalized Spectral ResponseFig. 5 - Forward Current IF = f (VF)Fig. 6 - ALS Refresh Time vs. Maximum Detection RangeFig. 7 - IDD 8 - ALS View AngleFig. 9 - White Channel Spectral Response10100100010000010203040506070809 01004005006007008009001000 Axis Title1st line2nd line2nd lineNormalized Output (%) - Wavelength (nm)2nd Title1st line2nd line2nd lineForward Current (mA)Forward Voltage (V) currentPulse 0 10 000 20 000 30 000 40 000 50 000 60 000 70 000 0 2000 4000 6000 8000 10 000 Axis Title1st line2nd lineStep1st lineLux2nd line80 ms160 ms320 ms640 ms10100100010000150160250-4020406080 Axis Title1st line2nd line2nd lineIDD - Supply Current (A)Tamb - Ambient Temperature ( C) -60 -300 30 6090 Axis Title1st line2nd line1st line2nd lineALS View Angle - Angular Displacement ( ) 400 500 600 700 800 900 1000 Axis Title1st line2nd lineNormalized Output1st lineWavelength (nm)2nd Semiconductors Rev.

10 , 04-Nov-20207 Document Number: 84274 For technical questions, contact: DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT 10 - IRED ProfileAPPLICATION INFORMATIONPin Connection with the HostVCNL4040 integrates Proximity sensor, Ambient Light Sensor, and IRED all together with I2C interface. It is very easy for the baseband (CPU) to access PS and ALS output data via I2C interface without extra software algorithms. The hardware schematic is shown in the following additional capacitors in the circuit can be used for the following purposes: (1) the F capacitor near the VDD pin is used for power supply noise rejection, (2) the F capacitor - connected to the anode - is used to prevent the IRED voltage from instantly dropping when the IRED is turned on, and (3) k is suitable for the pull up resistor of I2C except for the k applied on the INT Cathode (LED) and cathode (sensor): pins need to be connected together externallyFig.