TSL2562 TAOS [TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS], TSL2562 Datasheet

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TSL2562

Manufacturer Part Number
TSL2562
Description
LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER
Manufacturer
TAOS [TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS]
Datasheet
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Description
The LUMENOLOGY r Company
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The TSL2562 and TSL2563 are low-voltage
light-to-digital converters that transform light
intensity to a digital signal output capable of direct
I
Each device combines one broadband photo-
diode (visible plus infrared) and one infrared-re-
sponding photodiode on a single CMOS inte-
grated circuit capable of providing a near-photop-
ic response over an effective 20-bit dynamic
range (16-bit resolution). Two integrating ADCs
convert the photodiode currents to a digital output
that represents the irradiance measured on each
channel. This digital output can be input to a
microprocessor where illuminance (ambient light
level) in lux is derived using an empirical formula
to approximate the human eye response. The
TSL2562 device permits an SMB-Alert style
interrupt, and the TSL2563 device supports a
traditional level style interrupt that remains
asserted until the firmware clears it.
While useful for general purpose light sensing applications, the TSL2562/63 devices are designed particularly
for display panels (LCD, OLED, etc.) with the purpose of extending battery life and providing optimum viewing
in diverse lighting conditions. Display panel backlighting, which can account for up to 30 to 40 percent of total
platform power, can be automatically managed. Both devices are also ideal for controlling keyboard illumination
based upon ambient lighting conditions. Illuminance information can further be used to manage exposure
control in digital cameras. The TSL2562/63 devices are ideal in notebook/tablet PCs, LCD monitors, flat-panel
televisions, cell phones, and digital cameras. In addition, other applications include street light control, security
lighting, sunlight harvesting, machine vision, and automotive instrumentation clusters.
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Approximates Human Eye Response
Programmable Interrupt Function with
User-Defined Upper and Lower Threshold
Settings
16-Bit Digital Output with SMBus (TSL2562)
at 100 kHz or I
400 kHz
Programmable Analog Gain and Integration
Time Supporting 1,000,000-to-1 Dynamic
Range
Automatically Rejects 50/60-Hz Lighting
Ripple
Low 2.5-V Input Voltage and 1.8-V Digital
Output
Low Active Power (0.6 mW Typical) with
Power Down Mode
RoHS Compliant
C (TSL2563) or SMBus (TSL2562) interface.
2
C (TSL2563) Fast-Mode at
Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972) 673-0759
r
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www.taosinc.com
ADDR SEL 2
ADDR SEL 2
ADDR SEL 2
GND 3
V
GND 3
SDA 5
DD
V
V
INT 6
DD
DD
GND 3
LIGHT-TO-DIGITAL CONVERTER
V
Package Drawings are Not to Scale
1
DD
1
1
r
DUAL FLAT NO-LEAD
6-LEAD CHIPSCALE
1
6-LEAD ChipLED
PACKAGE CS
PACKAGE CL
6-LEAD TMB
PACKAGE FN
PACKAGE T
(TOP VIEW)
(TOP VIEW)
(TOP VIEW)
(TOP VIEW)
TSL2562, TSL2563
Copyright E 2010, TAOS Inc.
TAOS066N − AUGUST 2010
6 SDA
5 INT
4 SCL
LOW-VOLTAGE
6 SDA
5 INT
4 SCL
4 SCL
3 ADDR SEL
2 GND
6 SDA
5 INT
4 SCL
1

Related parts for TSL2562

TSL2562 Summary of contents

Page 1

... Both devices are also ideal for controlling keyboard illumination based upon ambient lighting conditions. Illuminance information can further be used to manage exposure control in digital cameras. The TSL2562/63 devices are ideal in notebook/tablet PCs, LCD monitors, flat-panel televisions, cell phones, and digital cameras. In addition, other applications include street light control, security lighting, sunlight harvesting, machine vision, and automotive instrumentation clusters ...

Page 2

... ADDR SEL Detailed Description The TSL2562 and TSL2563 are second-generation ambient light sensor devices. Each contains two integrating analog-to-digital converters (ADC) that integrate currents from two photodiodes. Integration of both channels occurs simultaneously. Upon completion of the conversion cycle, the conversion result is transferred to the Channel 0 and Channel 1 data registers, respectively ...

Page 3

... V ≤ 2.38 V TEST CONDITIONS Active Power down 3 mA sink current 6 mA sink current r www.taosinc.com TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 −0 3.8 V − −40°C to 85°C MIN NOM MAX 2.38 2.5 3 −30 70 − ...

Page 4

... Lux), high gain (actual Lux) high gain Incandescent light source: mode (Note 402 ms int Copyright E 2010, TAOS Inc 2 255C, (unless otherwise noted) (see DD A TSL2562T, FN, & CL TSL2563T, FN, & CL CHANNEL CHANNEL MIN 690 Ch0 0 = 402 ms 402 ms int Ch1 0 Ch0 ...

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... TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 = (number of clock cycles)/f . int osc Copyright E 2010, TAOS Inc ...

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... TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 AC Electrical Characteristics, V † PARAMETER t Conversion time (CONV) 2 Clock frequency (I C only (SCL) Clock frequency (SMBus only) t Bus free time between start and stop condition (BUF) Hold time after (repeated) start condition. After ...

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... R ACK by TSL256x R ACK by TSL256x Frame 2 Data Byte From TSL256x r www.taosinc.com TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 t (SUSTO Stop t (LOWMEXT ACK by TSL256x Frame 2 Command Byte ...

Page 8

... TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 1 0.8 0.6 0.4 0.2 0 300 NORMALIZED RESPONSIVITY vs. ANGULAR DISPLACEMENT — CS PACKAGE 1.0 0.8 0.6 0.4 0.2 0 −90 −60 − − Angular Displacement − ° Figure 5 Copyright E 2010, TAOS Inc. 8 TYPICAL CHARACTERISTICS SPECTRAL RESPONSIVITY Channel 0 Photodiode Channel 1 Photodiode 400 ...

Page 9

... Q − Angular Displacement − ° Figure 7 The LUMENOLOGY r Company ANGULAR DISPLACEMENT — CL PACKAGE 1.0 0.8 0.6 0.4 0 −90 r www.taosinc.com TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 NORMALIZED RESPONSIVITY vs. −60 − − Angular Displacement − ° Figure 8 Copyright E 2010, TAOS Inc ...

Page 10

... TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 Analog-to-Digital Converter The TSL256x contains two integrating analog-to-digital converters (ADC) that integrate the currents from the channel 0 and channel 1 photodiodes. Integration of both channels occurs simultaneously, and upon completion of the conversion cycle the conversion result is transferred to the channel 0 and channel 1 data registers, respectively ...

Page 11

... COMMAND byte is ignored but is a requirement of the SMBus specification. This field contains the byte count (i.e. the number of bytes to be transferred). The TSL2562 (SMBus) device ignores this field and extracts this information by counting the actual number of bytes transferred before the Stop condition is detected ...

Page 12

... TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 1 S Slave Address 1 S Slave Address Slave Address Slave Address Wr A Command Code Slave Address Slave Address Wr A Command Code Copyright E 2010, TAOS Inc. ...

Page 13

... Reserved ID Part number/ Rev ID −− Reserved Low byte of ADC channel 0 High byte of ADC channel 0 Low byte of ADC channel 1 High byte of ADC channel 1 r www.taosinc.com TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 ... A Data Byte ...

Page 14

... SMBus read/write protocol requires a Byte Count. All four ADC Channel Data Registers (Ch through Fh) can be read simultaneously in a single SMBus transaction. This is the only 32-bit data block supported by the TSL2562 SMBus protocol. The BLOCK bit must be set to 1, and a read condition should be initiated with a COMMAND CODE of 9Bh. By using a COMMAND CODE of 9Bh during an SMBus Block Read Protocol, the TSL2562 device will automatically insert the appropriate Byte Count (Byte Count = 4) as illustrated in Figure 17 ...

Page 15

... GAIN Manual Resv DESCRIPTION × ). Table 6. Integration Time SCALE NOMINAL INTEGRATION TIME 0.034 0.252 1 −− r www.taosinc.com TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 TIMING INTEG ×) ; writing a 1 selects 13.7 ms 101 ms 402 ms N/A Copyright E 2010, TAOS Inc. ...

Page 16

... TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 REGISTER THRESHLOWLOW THRESHLOWHIGH THRESHHIGHLOW THRESHHIGHHIGH NOTE: Since two 8-bit values are combined for a single 16-bit value for each of the high and low interrupt thresholds, the Send Byte protocol should not be used to write to these registers. Any values transferred by the Send Byte protocol with the MSB set would be interpreted as the COMMAND field and stored as an address for subsequent read/write operations and not as the interrupt threshold information as desired ...

Page 17

... Ah PARTNO Reset Value: − − FIELD BITS PARTNO 7:4 Part Number Identification: field value 0010 = TSL2562, field value 0011 = TSL2563 REVNO 3:0 Revision number identification The LUMENOLOGY r Company Table 9. Interrupt Control Select READ VALUE Interrupt output disabled Level Interrupt SMBAlert compliant Test Mode: Sets interrupt and functions as mode 10 Table 10 ...

Page 18

... TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 ADC Channel Data Registers (Ch − Fh) The ADC channel data are expressed as 16-bit values spread across two registers. The ADC channel 0 data registers, DATA0LOW and DATA0HIGH provide the lower and upper bytes, respectively, of the ADC value of channel 0 ...

Page 19

... DataHigh //Shift DataHigh to upper byte //Address the Ch1 lower data register //Result returned in DataLow //Address the Ch1 upper data register //Result returned in DataHigh //Shift DataHigh to upper byte r www.taosinc.com TSL2562, TSL2563 LOW-VOLTAGE TAOS066N − AUGUST 2010 Copyright E 2010, TAOS Inc ...

Page 20

... TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 APPLICATION INFORMATION: SOFTWARE Configuring the Timing Register The command, timing, and control registers are initialized to default values on power up. Setting these registers to the desired values would be part of a normal initialization or setup procedure. In addition, to maximize the performance of the device under various conditions, the integration time and gain may be changed often during operation ...

Page 21

... Address = 0x39 Command = 0x86 Data = 0x10 WriteByte(Address, Command, Data) The LUMENOLOGY r Company LIGHT-TO-DIGITAL CONVERTER //Slave addr also 0x29 or 0x49 //Address Interrupt Register //Level style, every ADC cycle r www.taosinc.com TSL2562, TSL2563 LOW-VOLTAGE TAOS066N − AUGUST 2010 Copyright E 2010, TAOS Inc ...

Page 22

... TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 APPLICATION INFORMATION: SOFTWARE The following example pseudo code illustrates the configuration of an SMB Alert style interrupt when the light intensity changes 20% from the current value, and persists for 3 conversion cycles: // Read current light level ...

Page 23

... Lux = 0.00338  CH0 − 0.00260  CH1 Lux = 0 Lux = 0.0304  CH0 − 0.062  CH0  ((CH1/CH0) Lux = 0.0224  CH0 − 0.031  CH1 Lux = 0.0128  CH0 − 0.0153  CH1 Lux = 0.00146  CH0 − 0.00112  CH1 Lux = 0 r www.taosinc.com TSL2562, TSL2563 LOW-VOLTAGE TAOS066N − AUGUST 2010 1.4 ) 1.4 ) Copyright E 2010, TAOS Inc. r ...

Page 24

... TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 //**************************************************************************** // Copyright E 2004−2005 TAOS, Inc THIS CODE AND INFORMATION IS PROVIDED ”AS IS” WITHOUT WARRANTY OF ANY // KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE // IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR // PURPOSE ...

Page 25

... M2C 0x02c1 // 0.0430 * 2^LUX_SCALE #define K3C 0x00c8 // 0.390 * 2^RATIO_SCALE #define B3C 0x0253 // 0.0363 * 2^LUX_SCALE #define M3C 0x0363 // 0.0529 * 2^LUX_SCALE The LUMENOLOGY r Company LIGHT-TO-DIGITAL CONVERTER r www.taosinc.com TSL2562, TSL2563 LOW-VOLTAGE TAOS066N − AUGUST 2010 Copyright E 2010, TAOS Inc ...

Page 26

... TSL2562 // unsigned int ch1 − raw channel value from channel 1 of TSL2562 // unsigned int iType − package type ( Return: unsigned int − ...

Page 27

... K4C) {b=B4C; m=M4C;} else if (ratio <= K5C) {b=B5C; m=M5C;} else if (ratio <= K6C) {b=B6C; m=M6C;} else if (ratio <= K7C) {b=B7C; m=M7C;} The LUMENOLOGY r Company LIGHT-TO-DIGITAL CONVERTER // scale 1X to 16X r www.taosinc.com TSL2562, TSL2563 LOW-VOLTAGE TAOS066N − AUGUST 2010 Copyright E 2010, TAOS Inc ...

Page 28

... TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 else if (ratio > K8C) {b=B8C; m=M8C;} break; } unsigned long temp; temp = ((channel0 * b) − (channel1 * m)); // do not allow negative lux value if (temp < 0) temp = 0; // round lsb (2^(LUX_SCALE−1)) temp += (1 << (LUX_SCALE−1)); // strip off fractional portion unsigned long lux = temp > ...

Page 29

... P PI Figure 18. Bus Pull-Up Resistors Rp values, please 2 C maximum and minimum Rp values, please , the interrupt can optionally be pulled www.taosinc.com TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 0.1 mF INT SCL SDA review the SMBus Specification Copyright E 2010, TAOS Inc. ...

Page 30

... TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 APPLICATION INFORMATION: HARDWARE PCB Pad Layout Suggested PCB pad layout guidelines for the TMB-6 (T) surface mount package, chipscale (CS) package, Dual Flat No-Lead (FN) surface mount package, and ChipLED−6 (CL) surface mount package are shown in Figure 19, Figure 20, Figure 21, and Figure 22 ...

Page 31

... Figure 21. Suggested FN Package PCB Layout NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. Figure 22. Suggested CL Package PCB Layout The LUMENOLOGY r Company LIGHT-TO-DIGITAL CONVERTER 2.90 1.30 1.30 1.30 0.70 0.70 r www.taosinc.com TSL2562, TSL2563 LOW-VOLTAGE TAOS066N − AUGUST 2010 0.40 1.70 0.40 0.43 0.40 0.65 0.40 Copyright E 2010, TAOS Inc ...

Page 32

... TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 PACKAGE CS TOP VIEW 1398 171 203 465 1250 END VIEW 700 + 100 TYP 305 BOTTOM VIEW 375 + 30 500 500 375 + 30 500 NOTES: A. All linear dimensions are in micrometers. Dimension tolerance is ± 25 μm unless otherwise noted. ...

Page 33

... Figure 24. Package T — Six-Lead TMB Plastic Surface Mount Packaging Configuration The LUMENOLOGY r Company MECHANICAL DATA TOP VIEW 0.31 PIN 1 R 0.20 6 Pls Photo-Active Area 0.88 0.50 0.60 TYP 0.30 TYP r www.taosinc.com TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 Six-Lead Surface Mount Device PIN 4 Pb Lead Free Copyright E 2010, TAOS Inc ...

Page 34

... TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 PACKAGE FN TOP VIEW PIN 1 2000 + 75 END VIEW BOTTOM VIEW PIN 1 NOTES: A. All linear dimensions are in micrometers. Dimension tolerance is ± 20 μm unless otherwise noted. B. The photo-active area is 1398 μm by 203 μm. C. Package top surface is molded with an electrically nonconductive clear plastic compound having an index of refraction of 1.55. ...

Page 35

... Figure 26. Package CL — Six-Lead ChipLED Plastic Surface Mount Packaging Configuration The LUMENOLOGY r Company MECHANICAL DATA 5 6 Pin 1 Photo-Active Area 0.18 0.40 0.70 0.35 r www.taosinc.com TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 Six-Lead Surface Mount Device PIN OUT TOP VIEW Pin 1 Marker Pb Lead Free Copyright E 2010, TAOS Inc ...

Page 36

... 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. Figure 27. TSL2562/TSL2563 Chipscale Carrier Tape Copyright E 2010, TAOS Inc. 36 MECHANICAL DATA 2 ...

Page 37

... 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. Figure 28. TSL2562/TSL2563 TMB Carrier Tape The LUMENOLOGY r Company MECHANICAL DATA 2 ...

Page 38

... L. 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. N. This drawing is subject to change without notice. Figure 29. TSL2562/TSL2563 FN Carrier Tape Copyright E 2010, TAOS Inc. 38 MECHANICAL DATA 2 ...

Page 39

... 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. Figure 30. TSL2562/TSL2563 CL Carrier Tape The LUMENOLOGY r Company MECHANICAL DATA 2 ...

Page 40

... Time above 217°C Time above 230°C Time above T −10°C peak Peak temperature in reflow Temperature gradient in cooling T peak Time (sec) Figure 31. TSL2562/TSL2563 Solder Reflow Profile Graph Copyright E 2010, TAOS Inc. 40 MANUFACTURING INFORMATION REFERENCE t soak peak t ...

Page 41

... RH 5°C to 50°C 60% maximum 12 months from the date code on the aluminized envelope — if unopened 168 hours or fewer r www.taosinc.com TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 Copyright E 2010, TAOS Inc ...

Page 42

... TSL2562, TSL2563 LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER TAOS066N − AUGUST 2010 PRODUCTION DATA — information in this document is current at publication date. Products conform to specifications in accordance with the terms of Texas Advanced Optoelectronic Solutions, Inc. standard warranty. Production processing does not necessarily include testing of all parameters. ...

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