TSL27711FN TAOS, TSL27711FN Datasheet
TSL27711FN
Specifications of TSL27711FN
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TSL27711FN Summary of contents
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... Cell Phone Touch Screen Disable D Notebook/Monitor Security D Automatic Speakerphone Enable D Automatic Menu Popup r www.taosinc.com TSL2771 with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 PACKAGE FN DUAL FLAT NO-LEAD (TOP VIEW) 6 SDA 1 5 INT 4 LDR 2 C Fast Mode ODFN Package Applications Copyright E 2010, TAOS Inc ...
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... No external current limiting resistor is required. The number of proximity LED pulses can be programmed from 1 to 255 pulses. Each pulse has a 16-μs period. This LED current coupled with the programmable number of pulses provides a 2000:1 contiguous dynamic range. Copyright E 2010, TAOS Inc LED Constant Current Sink ...
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... TSL2771 LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 2 C serial data ORDERING NUMBER TSL27711FN TSL27713FN 3.8 V −0 3.8 V − −40°C to 85°C 2000 V MIN NOM MAX UNIT 2 ...
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... The 850 nm irradiance E is supplied by a GaAs light-emitting diode with the following typical characteristics: peak wavelength e λp = 850 nm and spectral halfwidth Δλ½ nm. Copyright E 2010, TAOS Inc 255C (unless otherwise noted) A TEST CONDITIONS Active — ...
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... MIN TYP MAX 2.58 2.72 2.9 1 256 MIN TYP MAX UNIT 0 400 kHz 1.3 0.6 0.6 0.6 0 100 1.3 0.6 300 300 10 Copyright E 2010, TAOS Inc. r UNIT mA ms steps steps μs μ UNIT ms steps μs μs μs μs μs ns μs μ ...
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... PROXIMITY SENSING TAOS100A − FEBRUARY 2010 PARAMETER MEASUREMENT INFORMATION t (LOW SCL (HDSTA (BUF) (HDDAT SDA Stop Start Condition Condition SCL SDA Copyright E 2010, TAOS Inc (R) ( (HIGH) (SUSTA) t (SUDAT) S Start Stop t (LOWSEXT) SCL SCL ACK ACK t t (LOWMEXT) (LOWMEXT) Figure 1. Timing Diagrams r www.taosinc.com t ...
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... TSL2771 LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 LDR OUTPUT COMPLIANCE 100 12.5 mA 0.3 0.6 0.9 V − Output Low Voltage − Figure 3 NORMALIZED RESPONSIVITY vs. ANGULAR DISPLACEMENT -Q +Q −60 − − Angular Displacement − ° Figure 5 Copyright E 2010, TAOS Inc ...
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... CDATA (clear) digital value. The ADC digital outputs from the two channels are used in a formula to obtain a value that approximates the human eye response in units of lux. Copyright E 2010, TAOS Inc. 8 PRINCIPLES OF OPERATION ...
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... IRDATAH(r 0x17), IRDATAL(r 0x16) AGAIN(r 0x0F, b1:0) 1y, 8y, 16y, 120y Gain Figure 7. ALS Operation × (256 − ATIME) × × 2. 2.72 = 172 ms. r www.taosinc.com TSL2771 LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 × . The register bits Copyright E 2010, TAOS Inc ...
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... If the ALS integration time is greater than 172 μs, the saturation level is 50,000, otherwise it is calculated as: SATURATION = 0.75 Copyright E 2010, TAOS Inc. 10 × Counts per lux (CPL) × ...
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... IAC = (0.749 CDATA − 1.374 × IAC = (0.477 CDATA − 0.769 IAC = 0 × IRDATA) × 1438) × × Gain × 52) r www.taosinc.com TSL2771 with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 × IRDATA) × IRDATA) × IRDATA) × IRDATA) Copyright E 2010, TAOS Inc ...
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... As a general rule recommended to have a clear channel count of at least 10 to accurately apply the lux equation. The digital accumulation is limited to 16 bits, which occurs at an integration time of 173 ms. This is the maximum recommended programmed integration time before increasing the gain. (150 ms is the maximum to reduce the fluorescent ripple.) Copyright E 2010, TAOS Inc. 12 100 1000 ...
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... PDRIVE(r 0x0F, b7:6) PTIME LED Constant Current Sink Prox Control Prox Prox Prox Integration ADC Data PPCOUNT(r 0x0E) Clear IR r www.taosinc.com TSL2771 LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 IR LED 2771 PDATAH(r 0x019), PDATAL(r 0x014) Copyright E 2010, TAOS Inc ...
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... Figure 13 shows an example of the distances covered with settings such that each curve × covers 2 the distance. Counts pulses provide a 16 1000 800 600 400 200 Copyright E 2010, TAOS Inc. 14 Add IR + Subtract Background Background LED On LED Off LED Pulses Figure 12. Proximity IR LED Waveform × range. PROXIMITY ADC COUNT vs. RELATIVE DISTANCE 25 mA, ...
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... Prox Persistence Prox Data Lower Limit PILTH(r 09), PILTL(r 08) AIHTH(r 07), AIHTL(r 06) APERS(r 0x0C, b3:0) Upper Limit Clear Data Lower Limit IR Data AILTH(r 05), AILTL(r 04) Figure 14. Programmable Interrupt r www.taosinc.com TSL2771 LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 ALS Persistence Copyright E 2010, TAOS Inc ...
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... ADC Up to 255 steps Step: 2.72 ms Time: 2.72 mS − 696 ms Recommended − 2.72 ms 1024 Counts WLONG = 0 Counts up to 256 steps Step: 2.72 ms Time: 2.72 ms − 696 ms Minimum − 2.72 ms Copyright E 2010, TAOS Inc. 16 Sleep PON = 1 PON = 0 Start Prox Check Wait Check ...
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... Prox Accum (LED On) Prox ADC 50 ms Wait ALS y y Avg = ((0.032 100) + (2.72 0.175) + (47 r www.taosinc.com TSL2771 with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 Duration (ms) Current (mA) 0.064 (0.032) 100.0 2.7 0.175 47 0.065 50 0.175 y y 100 = 155 mA / 0.065) + (50 0.175)) Copyright E 2010, TAOS Inc ...
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... Clear_data, IR_data, Prox_data; Clear_data = Read_Word(0x14); IR_data = Read_Word(0x16); Prox_data = Read_Word(0x18); WriteRegData (unit8 reg, unit 8 data); { m_I2CBus.WriteI2C(0x39, 0x80 | reg 1 &data); } unit16 Read_Word (unit8 reg); { unit8 barr [2]; m_I2CBus.ReadI2C(0x39, 0xA0 | reg, 2, ref barr); return (uint16)(barr[0] + 256 } Copyright E 2010, TAOS Inc WriteRegData(0,0x0f); barr[1]); r www.taosinc.com The LUMENOLOGY r Company r ...
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... R A Data Read Protocol Command Code Data 2 C Read Protocol — Combined Format 2 Figure 17 Protocols r www.taosinc.com TSL2771 LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 2 C serial compatible interface (standard ... Data Byte ... Data Data ... A Data A P Copyright E 2010, TAOS Inc ...
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... The mechanics of accessing a specific register depends on the specific protocol used. See the section on I protocols on the previous pages. In general, the COMMAND register is written first to specify the specific control/status register for following read/write operations. Copyright E 2010, TAOS Inc. 20 Table 1. Register Address R/W ...
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... Special function — See description below READ VALUE Normal — no action Proximity interrupt clear ALS interrupt clear Proximity and ALS interrupt clear Reserved — Do not write r www.taosinc.com TSL2771 with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 1 0 − − Copyright E 2010, TAOS Inc ...
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... NOTES: 1. See Power Management section for more information minimum interval of 2.72 ms must pass after PON is asserted before either a proximity or ALS can be initiated. This required time is enforced by the hardware in cases where the firmware does not provide it. Copyright E 2010, TAOS Inc. 22 Table 3. Enable Register ...
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... TSL2771 with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 TIME MAX COUNT 2.72 ms 1024 27.2 ms 10240 100 ms 37888 174 ms 65535 696 ms 65535 TIME MAX COUNT 2.72 ms 1024 TIME (WLONG = 1) 2.72 ms 0.032 sec 200 ms 2.4 sec 700 ms 8.3sec Copyright E 2010, TAOS Inc. r × 23 ...
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... PILTH 0x09 7:0 PIHTL 0x0A 7:0 PIHTH 0x0B 7:0 Copyright E 2010, TAOS Inc. 24 BITS 7:0 ALS clear channel low threshold lower byte 7:0 ALS clear channel low threshold upper byte 7:0 ALS clear channel high threshold lower byte 7:0 ALS clear channel high threshold upper byte ...
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... TSL2771 with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 1 0 Address APERS 0x0C Copyright E 2010, TAOS Inc ...
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... NOTE: The ATIME register will be used to time the interval between proximity detection events even if the ALS function is disabled. Table 11 PPULSE FIELD BITS PPULSE 7:0 Proximity Pulse Count. Specifies the number of proximity pulses to be generated. Copyright E 2010, TAOS Inc. 26 Configuration Table 10. Register Reserved DESCRIPTION ...
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... ALS GAIN VALUE × 1 gain × 8 gain × 16 gain × 120 gain Table 13. ID Register DESCRIPTION r www.taosinc.com TSL2771 LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 1 0 Address AGAIN 0x0F 1 0 Address 0x12 0x00 = TSL27711 0x08 = TSL27713 Copyright E 2010, TAOS Inc ...
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... The upper register will read the correct value even if the next ADC cycle ends between the reading of the lower and upper registers. REGISTER ADDRESS PDATAL PDATAH Copyright E 2010, TAOS Inc. 28 Table 14. Status Register PINT ...
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... V bat LED 1 mF TSL2771 R PI LDR V bat LED LDR Transistor r www.taosinc.com TSL2771 LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 INT SCL SDA TSL2771 INT SCL SDA Copyright E 2010, TAOS Inc ...
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... Suggested PCB pad layout guidelines for the Dual Flat No-Lead (FN) surface mount package are shown in Figure 20. Note: Pads can be extended further if hand soldering is needed. 650 650 NOTES: A. All linear dimensions are in micrometers. B. This drawing is subject to change without notice. Figure 20. Suggested FN Package PCB Layout Copyright E 2010, TAOS Inc. 30 2500 1000 1000 r www.taosinc.com 400 1700 400 ...
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... GND 3 Photo-Active Area 650 + 50 Seating Plane 650 300 + 50 750 + 150 r www.taosinc.com TSL2771 with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 Dual Flat No-Lead PIN OUT TOP VIEW 6 SDA 5 INT 4 LDR SIDE VIEW 203 + 8 650 300 + 50 Pb Lead Free Copyright E 2010, TAOS Inc ...
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... D. Each reel is 178 millimeters in diameter and contains 3500 parts. E. TAOS packaging tape and reel conform to the requirements of EIA Standard 481− accordance with EIA standard, device pin 1 is located next to the sprocket holes in the tape. G. This drawing is subject to change without notice. ...
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... Table 17. TSL2771 Solder Reflow Profile REFERENCE t soak peak t soak r www.taosinc.com TSL2771 LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 TSL2771 2.5°C/sec minutes Max 60 sec Max 50 sec Max 10 sec 260°C Max −5°C/sec Not to scale — for reference only Copyright E 2010, TAOS Inc ...
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... Opened reels should be used within 168 hours if exposed to the following conditions: Temperature Range Relative Humidity If rebaking is required, it should be done at 50°C for 12 hours. The FN package has been assigned a moisture sensitivity level of MSL 3. Copyright E 2010, TAOS Inc. 34 MANUFACTURING INFORMATION < 40°C < 90% No longer than 12 months from the date code on the aluminized envelope if unopened ...
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... TAOS further makes no claim as to the suitability of its products for any particular purpose, nor does TAOS assume any liability arising out of the use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages ...
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... TSL2771 LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING TAOS100A − FEBRUARY 2010 Copyright E 2010, TAOS Inc www.taosinc.com The LUMENOLOGY r Company r ...