2007-05-23 Ambient Light and Proximity Sensor with Integrated 850nm IR Emitter Version 1.2 SFH 7776 Features: • Proximity sensor (PS) - Detection range up to 160 mm - 850 nm IR emitter integrated in package - Programmable pulse current up to 200 mA - No separator needed if placed <0.4mm behind glass window, window thickness<1.0 mm • Ambient light sensor (ALS) - detection range 0.0022 - 73000 lx; - 50Hz/60Hz flicker noise suppression • I2C interface (max.
Version 1.2 SFH 7776 Application diagram V INT, pullup V IO Rp1 Rp2 Rp3 SFH 7776 (5) LED_C LED_A (4) V LED Phone Battery (6) LDR GND (3) GND 100 nF (7) V INT (8) SDA INT SCL SDA VDD 4.7 uF (2) SCL (1) 100 nF VDD 1.0 uF Voltage Regulator GND • Bypass capacitors for VDD and VLED are required for proper operation of the device.
Version 1.
Version 1.2 SFH 7776 Measurement modes Mode Description OFF The device is inactive. Other units may use the I2C bus without any restrictions; I/O pins and INT are in high Z state. There is no sink current through the LED STAND-BY This is the initial mode after power-up. IDD is typ. 0.8A. No measurement is performed. Device can be activated by I2C bus communication. Data registers can be read and written. ALS / PS free RUNNING Measurements are triggered internally by the SFH 7776.
Version 1.2 SFH 7776 Maximum Ratings (TA = 25 °C) Parameter Storage temperature range Symbol Values Unit Tstg -40 ... 100 °C Operating temperature range Top -40 ... 85 °C Maximum supply voltage (between VDD and GND) VDD 4.5 V Maximum voltage of SDA, SCL to GND Vdig 4.5 V Maximum voltage of INT to GND Vint 7 V Maximum voltage of VLED to GND VLED 7 V Maximum Current of INT and SDA IINT / ISDA 7 mA VESD 2 kV ESD withstand voltage (acc.
Version 1.2 SFH 7776 Operating conditions (TA = 25 °C) Parameter Symbol Supply voltage VDD Ripple on supply voltage (VDDmin and VDDmax must stay in the VDD range, DC ... 100MHz) VDD,rip VDD threshold voltage (voltage to initiate the start-up procedure) VDD; th Value min. typ. max. 2.3 2.5 3.6 V 200 mV 2.3 V 1.
Version 1.2 SFH 7776 Characteristics (TA = 25 °C) Parameter Symbol Value min. Unit typ. max. General VDD,off IDD,off 0.5 V 0 A IDD,stby 0.8 LED centroid wavelength (ILED = 100mA) centroid 850 nm LED Spectral bandwidth (ILED = 100mA) D 30 nm -0.5 %/K Conditions for OFF mode Current consumption in OFF mode (VDD < 0.5V) STAND-BY mode current consumption (Mode_control(41h) = 0x00; VDD = 2.5V) 1.
Version 1.2 SFH 7776 Typical none detection distance 1) KODAK grey card 100x130mm², R=90% (ILED=200mA, VDD=2.5V, Ev = 0lx low threshold = 8 counts) hoff 12 cm PS sensor output with human skin reflector (ILED=200mA, VDD=2.5V, h=0mm: skin directly on top of the sensor) PSout 850 counts Temperature coefficient of the PS signal (ILED=200mA, VDD=2.5V, R=90%, AReflector =10x13cm², h=4cm) TKPS 0.
Version 1.2 SFH 7776 Dimensions of proposed optical aperture (optical aperture: IR transmitting opening in cover glass) IR Intransparent and Low Reflective Cover (deep black) Cover Glass Ø Aperture 35° Ø Aperture 35° 35° 35° Dd 0.45 SFH 7776 PS & ALS Detector pcb 0.8 0.675 ,5 WUDQVSDUHQW RSHQLQJ 6)+ 0.
Version 1.2 SFH 7776 Characteristics (Ta = 25°C) Parameter Symbol Value min. Unit typ. max. Ambient Light Sensors: ALS VIS and ALS IR diode Wavelength of max. sensitivity for ALS VIS Spectral range of sensitivity (10% of Smax) of ALS VIS Wavelength of max.
Version 1.2 Parameter SFH 7776 Symbol Value min. Resolution of the digital output signal based on gain settings for ALS VIS: MODE_CONTROL (0x41h) = 08h tint ALS = 100ms Gain X1 Gain X2 Gain X 64 Gain X 128 ALSVIS_out Unit typ. lx/count 1.1 0.55 0.018 0.009 High sensitive mode: MODE_CONTROL (0x41h) = 0Ah tint ALS = 400ms Gain X 128 (VDD = 2.5V; white LED) - Gain settings at ALS_PS_CONTROL (0x42h) 0.002 Typical temperature coefficient for ALS measurement (1000lx; white LED; VDD = 2.
Version 1.
Version 1.2 SFH 7776 ALS VIS sensitivity ranges ALS VIS output f(Ev); white LED; f(sensitivity settings); Tint: integration time (register 0x41h); X: gain settings (register 0x42h) OHF05598 100000 10000 X = 64 ALS Vis out / counts Tint = 100 ms X = 128 1000 Tint = 100 ms X=2 X = 128 Tint = 100 ms Tint = 400 ms 100 X=1 Tint = 100 ms 10 1 0.001 0.1 10 1000 lx 100000 EV Direction Characteristic of ALS Vis diode Srel f(f)) 40˚ 30˚ 20˚ 10˚ ϕ 0˚ OHF05605 1.0 50˚ 0.8 60˚ 0.
Version 1.2 SFH 7776 Diagrams for PS sensor PS sensitivity f(R = reflectivity) VDD=2.
Version 1.2 SFH 7776 PS sensitivity f(ILED) VDD=2.5V; Trep=100ms; R=90%; AReflector = 10 x 13 cm² OHF05601 PS sensor output / counts 1000 100 10 I LED = 200 mA I LED = 50 mA 1 0 50 I LED = 100 mA 100 150 200 mm 250 h Typical crosstalk free range VDD=2.5V; ILED=200mA; Trep=100ms; glass without ink and one single IR transmissive opening ; OHF05599 1.2 mm 1.0 Distance cover bottom surface to top of the sensor > 1 count 0.8 1 count 0.6 0 counts 0.4 0.2 0 2016-04-25 0 0.2 0.4 0.
Version 1.2 SFH 7776 Typical crosstalk free range VDD=2.5V; ILED=200mA; Trep=100ms; glass without ink and a two separate IR transmissive openings for emitter and detector OHF05609 1.2 > 1 count mm 1.0 Distance cover bottom surface to top of the sensor 1 count 0.8 0 counts 0.6 0.4 0.2 0 0 0.2 0.4 0.6 0.8 Thickness of coverglass 1 mm 1.2 Note for crosstalk free range: The displayed crosstalk free ranges for a single or two hole IR transmissive opening are measured with a clear cover.
Version 1.2 SFH 7776 Radiation Characteristics of the IR Emitter Irel f(f) 40˚ 30˚ 20˚ 10˚ ϕ 0˚ OHF05605 1.0 50˚ 0.8 60˚ 0.6 70˚ 0.4 80˚ 0.2 0 90˚ 100˚ 2016-04-25 1.0 0.8 0.6 0.
Version 1.2 SFH 7776 Diagrams for IDD current consumption Current consumption IDD in standby mode IDD = f(VDD); Register 0x41= 0x00 IDD Current consumption IDD in PS mode IDD = f(VDD); Register 0x41= 0x03 OHF05602 4.5 µA OHF05603 120 µA IDD 100 3.5 80 3.0 2.5 60 2.0 40 1.5 20 1.0 0.5 2.2 2.5 2.8 3.1 0 2.2 3.4 V 3.7 VDD OHF05604 IDD 120 100 80 60 40 20 0 2.2 2.5 2.8 3.1 3.4 V 3.7 VDD 2016-04-25 2.8 3.1 3.4 V 3.
Version 1.2 SFH 7776 Register SYSTEM_CONTROL register (0x40h) The SYSTEM_CONTROL register is used to control the software (SW) reset and the interrupt function (INT). Manufacturer ID and Part ID can be read.
Version 1.2 SFH 7776 .
Version 1.2 SFH 7776 R/W-Register 0x42 Bit 7 6 5 4 3 2 Reserved (read only) PS output 1 ALS Gain for ALS VIS and ALS IR 0 LED current 0 proximity output 0000 X1 X1 00 25 mA 1 Infrared DC level output 0100 X2 X1 01 50 mA 0101 X2 X2 10 100 mA 1010 X64 X64 11 200 mA 1110 X128 X64 1111 X128 X128 rest forbidden Persistence Register (0x43h) Settings for the interrupt activation and of the persistence interrupt function.
Version 1.2 SFH 7776 R/W-Register 0x43 Bit 7 6 5 4 3 2 1 0 Reserved (read only) Persistence 0000 Interrupt becomes active after each measurement (The mode indicates that a PS or ALS measurement has been finished and can be read via the register. It is independent of the ALS & PS measurement value and threshold settings) 0001 Interrupt status is updated after each measurement (The interrupt status is updated independently after each measurement.
Version 1.2 SFH 7776 ALS_VIS_DATA_LSBs register (0x46h) LSB of the ALS VIS output. R-Register 0x46 Bit 7 2 7 6 2 default 0 6 5 2 0 5 4 2 0 4 3 2 0 3 2 2 0 2 1 2 1 0 0 2 0 0 0 ALS_VIS_DATA_MSBs register (0x47h) MSB of the ALS VIS output. R-Register 0x47 Bit 7 2 15 6 2 default 0 14 5 2 0 13 4 2 0 12 3 2 0 11 2 2 0 10 1 2 9 0 0 2 0 8 0 ALS_IR_DATA_LSBs register (0x48h) LSB of the ALS IR output.
Version 1.2 SFH 7776 Interrupt function setting register (0x4Ah) Setting of the interrupt functions.
Version 1.2 SFH 7776 PS_TH_MSBs register (0x4Ch) MSB for the PS threshold „HIGH“. R/W-Register 0x4C Bit 7 6 5 4 3 2 default 0 0 0 0 11 2 2 1 10 1 2 9 1 0 2 1 8 1 PS_TL_LSBs register (0x4Dh) LSB for the PS threshold „LOW“. R/W-Register 0x4D Bit 7 2 7 6 2 default 0 6 5 2 0 5 4 2 0 4 3 2 0 3 2 2 0 2 1 2 1 0 0 2 0 0 0 PS_TL_MSBs register (0x4Eh) MSB for the PS threshold „LOW“.
Version 1.2 SFH 7776 ALS_VIS_TL_LSBs register (0x51h) LSB for the ALS VIS threshold „LOW“. R/W-Register 0x51 Bit 7 2 7 6 2 default 0 6 5 2 0 5 4 2 0 4 3 2 0 3 2 2 0 2 1 2 1 0 0 2 0 0 0 ALS_VIS_TL_MSBs register (0x52h) MSB for the ALS VIS threshold „LOW“.
Version 1.2 SFH 7776 PS INT Modes: Bit <5;4> of interrupt function setting register (0x4Ah) 00 PS_TH is active only: The INT state is active, if the PS measurement result is equal or higher than the set PS_TH high threshold. The INT state is inactive, if the PS measurement result is lower than the set PS_TH high threshold. PS INT active PS INT inactive PS signal PS_TH 01 PS_TH & PS_TL (PS high & low threshold) are active as hysteresis: PS_TH and PS_TL are working as a hysteresis.
Version 1.2 SFH 7776 Package Outline Dimensions in mm. The emitter is located in the cavity between pad 4 and 5. The orientation of the sensor can be detected by the asymmetrical channel on the sensor top side. For optical aperture design please see page 8.
Version 1.2 SFH 7776 Recommended solder pad design Dimensions in mm (inch). Cleaning / Washing In general, OSRAM Opto Semiconductors does not recommend a wet cleaning process for the components SFH7776 as the package is not hermetically sealed. Due to the open design, all kind of cleaning liquids can infiltrate the package and cause a degradation or a complete failure of the LED or ASIC.
Version 1.2 SFH 7776 Reflow Soldering Profile Product complies to MSL Level 3 acc. to JEDEC J-STD-020D.
Version 1.2 SFH 7776 Method of Taping Dimensions in mm (inch).
Version 1.2 SFH 7776 Tape and Reel 12 mm tape with 2000 pcs. on ∅ 180 mm reel W1 D0 P0 A N F W E 13.0 ±0.25 P2 Label P1 Direction of unreeling Direction of unreeling W2 Leader: min. 400 mm * Trailer: min. 160 mm * *) Dimensions acc. to IEC 60286-3; EIA 481-D OHAY0324 Dimensions in mm Tape Dimensions [mm] W 12 +0.3 / -0.1 P0 P1 P2 D0 E F 4 ±0.1 4 ±0.1 2 ±0.05 1.5 ±0.1 1.75 ±0.1 5.5 ±0.05 Reel Dimensions [mm] A 180 2016-04-25 W Nmin W1 W2max 12 60 12.4 +2 18.
Version 1.2 SFH 7776 EX AM PL E Barcode-Product-Label (BPL) OSRAM Opto po BIN1: XX-XX-X-XXX-X LX XXXX Semiconductors tors ors r RoHS Compliant (6P) BATCH NO: NO:: 1234567 1234567890 234 7890 890 ML Temp ST X XXX °C X (1T) LOT NO: 1234567890 (9D) (9D D) D/ D) D/C: D/C: 123 1234 234 34 RXX Pack: RX R XX DEMY XXX X XX X_X123_1234.1234 X_X123_1 12 _123 123 12 234.
Version 1.2 SFH 7776 Transportation Packing and Materials Barcode label MY DE 8 T6 PL 76 R1 Q1 P1+ lti LS TO Y ). 44 : 01 rs D/C 99 8 O pt o to 21 uc 00 (9D ) AM nd 21 : co 20 00 Y: (Q) QT SR NO mi H O H1 23 4 Se TC BA 3G ) (6P 5 NO : 12 T 14 2 LO PR OD NO : (1T ) 11 00 see labe N TIO (X) U A GR Mu l k, C (G) L VE LE code (RH blan If y bar . idit RH hum 60% e tive d ˚C/ kag rela are 30 E S s _ < infr pac OR of 90% to ak tainITIV urs CT < e).
Version 1.2 SFH 7776 Disclaimer Language english will prevail in case of any discrepancies or deviations between the two language wordings. Attention please! The information describes the type of component and shall not be considered as assured characteristics. Terms of delivery and rights to change design reserved. Due to technical requirements components may contain dangerous substances. For information on the types in question please contact our Sales Organization.
