TSL2569T TAOS, TSL2569T Datasheet

Light to Digital Converters Light to Digital Sensor

TSL2569T

Manufacturer Part Number
TSL2569T
Description
Light to Digital Converters Light to Digital Sensor
Manufacturer
TAOS
Datasheet

Specifications of TSL2569T

Data Bus Width
20 bit
Peak Wavelength
640 nm, 940 nm
Maximum Operating Frequency
780 KHz
Operating Supply Voltage
2.7 V to 3.6 V
Operating Current
0.6 mA to 15 uA
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
- 30 C
Interface Type
I2C
Maximum Fall Time
300 ns
Maximum Rise Time
300 ns
Mounting Style
SMD/SMT
Resolution
16 bit
Package / Case
TMB-6
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Description
The LUMENOLOGY r Company
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The TSL2568 and TSL2569 are high-sensitivity light-to-digital converters that transform light intensity to a digital
signal output capable of direct I
broadband photodiode (visible plus infrared) and one infrared-responding photodiode on a single CMOS
integrated circuit capable of providing a near-photopic 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
TSL2568 device permits an SMB-Alert style interrupt, and the TSL2569 device supports a traditional level style
interrupt that remains asserted until the firmware clears it.
While useful for general purpose light sensing applications, the TSL2568/69 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 TSL2568/69 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.
Approximates Human Eye Response
Approximately 4
TSL2560/61 Device
Programmable Interrupt Function with
User-Defined Upper and Lower Threshold
Settings
16-Bit Digital Output with SMBus (TSL2568)
at 100 kHz or I
400 kHz
Programmable Analog Gain and Integration
Time Supporting 1,000,000-to-1 Dynamic
Range
Available in Ultra-Small 1.25 mm
Chipscale Package
Automatically Rejects 50/60-Hz Lighting
Ripple
Low Active Power (0.75 mW Typical) with
Power Down Mode
RoHS Compliant
2
C (TSL2569) Fast-Mode at
y
Texas Advanced Optoelectronic Solutions Inc.
More Sensitive Than
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972) 673-0759
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C (TSL2569) or SMBus (TSL2568) interface. Each device combines one
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1.75 mm
www.taosinc.com
ADDR SEL 2
ADDR SEL 2
GND 3
V
DD
GND 3
V
LIGHT-TO-DIGITAL CONVERTER
Package Drawings are Not to Scale
1
DD
r
6-LEAD CHIPSCALE
1
PACKAGE CS
6-LEAD TMB
PACKAGE T
(TOP VIEW)
(TOP VIEW)
TSL2568, TSL2569
TAOS091D − DECEMBER 2008
Copyright E 2008, TAOS Inc.
6 SDA
5 INT
4 SCL
6 SDA
5 INT
4 SCL
1

Related parts for TSL2569T

TSL2569T Summary of contents

Page 1

... C (TSL2569) or SMBus (TSL2568) interface. Each device combines one r www.taosinc.com TSL2568, TSL2569 LIGHT-TO-DIGITAL CONVERTER TAOS091D − DECEMBER 2008 PACKAGE CS 6-LEAD CHIPSCALE (TOP VIEW) 6 SDA INT 4 SCL Package Drawings are Not to Scale PACKAGE T 6-LEAD TMB (TOP VIEW) 6 SDA 1 5 INT 4 SCL Copyright E 2008, TAOS Inc ...

Page 2

... The TSL256x devices have the ability to define a threshold above and below the current light level. An interrupt is generated when the value of a conversion exceeds either of these limits. Copyright E 2008, TAOS Inc. 2 Channel 0 ...

Page 3

... TEST CONDITIONS Active Power down 3 mA sink current r www.taosinc.com TSL2568, TSL2569 LIGHT-TO-DIGITAL CONVERTER TAOS091D − DECEMBER 2008 ORDERING NUMBER TSL2568CS T TSL2568T TSL2569CS T TSL2569T −0 3.8 V − −40°C to 85°C MIN NOM MAX 2.7 3 3.6 −30 70 −0.5 0.8 2.1 3.6 ...

Page 4

... Lux), high gain (actual Lux) high gain Incandescent light source: mode (Note 402 ms int Copyright E 2008, TAOS Inc 255C, (unless otherwise noted) (see DD A TSL2568T, TSL2569T TSL2568CS, TSL2569CS CHANNEL CHANNEL MIN 690 Ch0 0 = 402 ms 402 ms int Ch1 0 Ch0 Ch1 ...

Page 5

... LIGHT-TO-DIGITAL CONVERTER TAOS091D − DECEMBER 2008 = (number of clock cycles)/f . int osc MIN TYP MAX UNIT 12 100 400 ms 0 400 kHz 10 100 kHz μs 1.3 μs 0.6 μs 0.6 μs 0.6 μs 0 0.9 100 ns μs 1.3 μs 0 300 ns 300 Copyright E 2008, TAOS Inc ...

Page 6

... Master Frame 1 SMBus Slave Address Byte Figure 2. Example Timing Diagram for SMBus Send Byte Format 1 SCL SDA Start by Master Frame 1 SMBus Slave Address Byte Figure 3. Example Timing Diagram for SMBus Receive Byte Format Copyright E 2008, TAOS Inc (R) ( (HIGH) (SUSTA) t (SUDAT) Start t ...

Page 7

... Wavelength − nm Figure 4 NORMALIZED RESPONSIVITY ANGULAR DISPLACEMENT — TMB PACKAGE 1.0 0.8 0.6 0.4 0 −90 −60 r www.taosinc.com TSL2568, TSL2569 LIGHT-TO-DIGITAL CONVERTER TAOS091D − DECEMBER 2008 vs. − − Angular Displacement − ° Figure 6 Copyright E 2008, TAOS Inc ...

Page 8

... Block Read Protocol The TSL256X implements the following protocols of the Philips Semiconductor Write Protocol Read (Combined Format) Protocol Copyright E 2008, TAOS Inc. 8 PRINCIPLES OF OPERATION 2 C bus Fast-Mode. The TSL256x offers three slave Table 1. Slave Address Selection SLAVE ADDRESS 0101001 0111001 1001001 2 C protocols on pages 9 through 12 ...

Page 9

... Master-to-Slave Slave-to-Master Figure 7. SMBus and I The LUMENOLOGY r Company 2 C protocols, please review the Slave Address Wr A Data Byte Packet Protocol Element Key r www.taosinc.com TSL2568, TSL2569 LIGHT-TO-DIGITAL CONVERTER TAOS091D − DECEMBER 2008 2 C) device to Master 2 C Specification Copyright E 2008, TAOS Inc ...

Page 10

... Slave Address Slave Address Slave Address Wr A Command Code Slave Address Slave Address Wr A Command Code Copyright E 2008, TAOS Inc Data Byte Figure 8. SMBus Send Byte Protocol Data Byte Figure 9. SMBus Receive Byte Protocol Command Code A Figure 10. SMBus Write Byte Protocol ...

Page 11

... 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 TSL2568, TSL2569 LIGHT-TO-DIGITAL CONVERTER TAOS091D − DECEMBER 2008 ... A Data Byte ... A Data Byte ... Rd A Byte Count = ... A Data Byte Copyright E 2008, TAOS Inc ...

Page 12

... Power up/power down. By writing a 03h to this register, the device is powered up. By writing a 00h to this register, the device is powered down. POWER 1:0 NOTE value of 03h is written, the value returned during a read cycle will be 03h. This feature can be used to verify that the device is communicating properly. Copyright E 2008, TAOS Inc. 12 Table 3. Command Register ...

Page 13

... Resv GAIN Manual Resv DESCRIPTION × ). Table 6. Integration Time SCALE NOMINAL INTEGRATION TIME 0.034 0.252 1 −− r www.taosinc.com TSL2568, TSL2569 LIGHT-TO-DIGITAL CONVERTER TAOS091D − DECEMBER 2008 TIMING INTEG ×) ; writing a 1 selects 13.7 ms 101 ms 402 ms N/A Copyright E 2008, TAOS Inc ...

Page 14

... Reserved. Write as 0. INTR 5:4 INTR Control Select. This field determines mode of interrupt logic according to Table 9, below. PERSIST 3:0 Interrupt persistence. Controls rate of interrupts to the host processor as shown in Table 10, below. Copyright E 2008, TAOS Inc. 14 Table 7. Interrupt Threshold Register ADDRESS BITS 2h 7:0 ...

Page 15

... Table 11. ID Register − − − DESCRIPTION r www.taosinc.com TSL2568, TSL2569 LIGHT-TO-DIGITAL CONVERTER TAOS091D − DECEMBER 2008 REVNO − − − Copyright E 2008, TAOS Inc ...

Page 16

... NOTE: The Read Word protocol can be used to read byte-paired registers. For example, the DATA0LOW and DATA0HIGH registers (as well as the DATA1LOW and DATA1HIGH registers) may be read together to obtain the 16-bit ADC value in a single transaction Copyright E 2008, TAOS Inc. 16 Table 12. ADC Channel Data Registers ...

Page 17

... Ch0 upper data register //Result returned in 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 TSL2568, TSL2569 TAOS091D − DECEMBER 2008 Copyright E 2008, TAOS Inc ...

Page 18

... WriteByte(Address, Command, Data) //Begin integration period Data = 0x0B WriteByte(Address, Command, Data) //Integrate for 50ms Sleep (50) //Stop integrating Data = 0x03 WriteByte(Address, Command, Data) //Read data registers (see Basic Operation example) Copyright E 2008, TAOS Inc. 18 //Wait for 50ms r www.taosinc.com The LUMENOLOGY r Company r ...

Page 19

... Set up end−of−conversion interrupt, Level style 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 TSL2568, TSL2569 TAOS091D − DECEMBER 2008 Copyright E 2008, TAOS Inc ...

Page 20

... Address = 0x39 Command = 0x86 Data = 0x30 WriteByte(Address, Command, Data) //Interrupt line should now be low Copyright E 2008, TAOS Inc. 20 //Slave addr also 0x29 or 0x49 //Set Command bit and Word bit //Addr lower threshold reg, set Word Bit //Addr upper threshold reg, set Word bit ...

Page 21

... Lux = 0.00763  CH0 − 0.01031  CH1 Lux = 0.00817  CH0 − 0.01188  CH1 Lux = 0.00723  CH0 − 0.01000  CH1 Lux = 0.00573  CH0 − 0.00750  CH1 Lux = 0.00216  CH0 − 0.00254  CH1 Lux = 0 r www.taosinc.com TSL2568, TSL2569 TAOS091D − DECEMBER 2008 Copyright E 2008, TAOS Inc ...

Page 22

... B1T 0x01f4 #define M1T 0x02a4 #define K2T 0x0100 #define B2T 0x0217 #define M2T 0x030a #define K3T 0x0133 #define B3T 0x01da #define M3T 0x028f Copyright E 2008, TAOS Inc scale by 2^16 // scale ratio by 2^9 // scale channel values by 2^10 // 322/11 * 2^CH_SCALE // 322/81 * 2^CH_SCALE // 0.35 * 2^RATIO_SCALE // 0 ...

Page 23

... TSL2568, TSL2569 TAOS091D − DECEMBER 2008 Copyright E 2008, TAOS Inc ...

Page 24

... Copyright E 2008, TAOS Inc 13.7 msec // 101 msec // assume no scaling // scale 1X to 16X r www ...

Page 25

... package // round lsb (2^(LUX_SCALE−1)) temp += (1 << (LUX_SCALE−1)); // strip off fractional portion lux = temp >> LUX_SCALE; return(lux); } The LUMENOLOGY r Company LIGHT-TO-DIGITAL CONVERTER // T package // CS package r www.taosinc.com TSL2568, TSL2569 TAOS091D − DECEMBER 2008 Copyright E 2008, TAOS Inc ...

Page 26

... PI fashion to the SCL and SDA lines. A typical impedance value between 10 kΩ and 100 kΩ can be used. Please note that while Figure 16 shows INT being pulled Copyright E 2008, TAOS Inc ...

Page 27

... NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. Figure 18. Suggested Chipscale Package PCB Layout The LUMENOLOGY r Company 3.80 0.90 0. www.taosinc.com TSL2568, TSL2569 LIGHT-TO-DIGITAL CONVERTER TAOS091D − DECEMBER 2008 0.25 0.70 0.70 0.70 0.50 0.50 Copyright E 2008, TAOS Inc ...

Page 28

... C. The top of the photodiode active area is 410 μm below the top surface of the package. D. The layer above the photodiode is glass and epoxy with an index of refraction of 1.53. E. This drawing is subject to change without notice. Figure 19. Package CS — Six-Lead Chipscale Packaging Configuration Copyright E 2008, TAOS Inc. 28 MECHANICAL DATA 6 ...

Page 29

... The LUMENOLOGY r Company MECHANICAL DATA TOP VIEW 0.31 PIN 1 R 0.20 6 Pls 2.60 Photo-Active Area 0.88 0.50 0.60 TYP 0.30 TYP r www.taosinc.com TSL2568, TSL2569 LIGHT-TO-DIGITAL CONVERTER TAOS091D − DECEMBER 2008 Six-Lead Surface Mount Device PIN 4 Pb Lead Free Copyright E 2008, TAOS Inc ...

Page 30

... 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. ...

Page 31

... D. Each reel is 178 millimeters in diameter and contains 1000 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. ...

Page 32

... Soak time 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 23. TSL2568/TSL2569 Solder Reflow Profile Graph Copyright E 2008, TAOS Inc. 32 MANUFACTURING INFORMATION REFERENCE t soak peak t soak r www.taosinc.com TSL2568/69 2.5° ...

Page 33

... It is important to use a substrate that has an immersion plating surface. This may be immersion gold, solder, or white tin. Hot air solder leveled (HASL) substrates are not coplanar, making them difficult to work with. The LUMENOLOGY r Company MANUFACTURING INFORMATION r www.taosinc.com TSL2568, TSL2569 LIGHT-TO-DIGITAL CONVERTER TAOS091D − DECEMBER 2008 Copyright E 2008, TAOS Inc ...

Page 34

... Opened Time Rebaking will be required if the devices have been stored unopened for more than 6 months or if the aluminized envelope has been open for more than 168 hours. If rebaking is required, it should be done at 90°C for 4 hours. Copyright E 2008, TAOS Inc. 34 MANUFACTURING INFORMATION 5° ...

Page 35

... 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 ...

Page 36

... TSL2568, TSL2569 LIGHT-TO-DIGITAL CONVERTER TAOS091D − DECEMBER 2008 Copyright E 2008, TAOS Inc www.taosinc.com The LUMENOLOGY r Company r ...

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