For 凱悌 ( 股 ) 公司 Only. Datasheet CG5162TC. Type Description: Light to Digital Converter. Product Name: CG5162TC. Reversion: 1.20

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1 Data Sheet Type Description: Product Name: CG5162TC Reversion: 1.20 Reversion Date: March 4, 2014 Page: 13 Pages Issue Date: 2014/04/25 March 4, 2014 Rev Datasheet

2 CG5162TC Pin Configuration (Top View) Descriptions The CG5162TC is a light-to-digital converter that transforms light intensity to a digital signal output capable of I 2 C interface. It is an advanced ambient light sensor with excellent temperature compensation designed by CMOS process. Each device combines one visible-light photodiode, one reference photodiode, amplifiers, and digital circuits in a single chip. Two integrating ADCs convert the photodiode currents to a digital output that represents the irradiance measured on each channel with 16-bits resolution. This digital output can be connect to a micro-controller where illumination (ambient light level) in lux is derived using an empirical formula to approximate the human eye response. Features Good low light sensitivity Excellent infrared immunity Good output linearity across light intensity Automatically rejects 50/60-Hz lighting ripple Spectral response close to the human eye s response Precisely measures illumination in diverse lighting conditions 16bits digital output with I 2 C (standard-mode and fast-mode, up to 400 KHz) Excellent temperature compensation: -40 to 85 RoHS compliant and lead-free package SMD 1208 Applications Security, Vehicle, Camcorder, TFT LCD, Note Book, PDA, Mobile Phone, Smart Phone. Ordering Information Order Number Package Type Shipping MOQ CG5162TC SMD 1208 Tape & Reel 3000 pcs/reel March 4, 2014 Rev Datasheet

3 Pin Descriptions Pin Symbol Type Function 1 VDD Power Supply voltage. 2 VSS Power Power supply ground. 3 SCL Input I 2 C serial clock input terminal with internal 4.7K pull-high resistor. 4 SDA Input / Output I 2 C serial data I/O terminal with internal 4.7K pull-high resistor. Function Block Diagram Detailed Description CG5162TC is an ambient light sensor device that contains two integrating analog-to-digital converters (ADC) that integrate currents from two photodiodes. Photodiode 0 is sensitive to visible light, and photodiode 1 is the reference diode. The spectral response of the two photodiodes is independent from one another and 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. After the transfer, the device automatically begins the next integration cycle. Communication to the device is accomplished through a standard I 2 C serial bus. Consequently, the CG5162TC device can be easily connected to a microcontroller or embedded controller, no external circuitry is required. Please refer to the chapter I 2 C Protocols for detailed communication method. Application Circuit V_3.3V R1 47R R2 R3 + C1 10uF C2 0.1uF 1 2 U1 VDD VSS SDA SCL 4 3 NC/4.7K NC/4.7K 1 2 U2 I2C_SDA I2C_SCL CG5162TC Micro Controller The capacitor C1 and C2 near VDD is essential for power noise rejection. The recommended value of C1 is 10uF. March 4, 2014 Rev Datasheet

4 Absolute Maximum Ratings Parameter Symbol Limit Values Min. Max. Units Notes Voltages Supply Voltage V DD V Digital Output Voltage Range V O V Temperatures Storage Temperature T stg ESD ESD Tolerance 2 kv Human body model Note: Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-ratings conditions for extended periods may affect device reliability. Recommended Operating Conditions Parameter Symbol Min. Typ. Max. Units Notes Supply Voltage V DD V Operating Free-air Temperature T A SCL, SDA Input Low Voltage V IL V SCL, SDA Input High Voltage V IH V SDA Output Low Voltage V OL V I OL = 3mA Operating Characteristics and Electrical Characteristics (VDD =3.3V, T A = 25 ) Parameter Test Conditions Channel Min. Typ. Max. Units Notes CH0 3 TIG = 400ms, Dark ADC Count Value 0 lux - - Counts CH1 3 CGAIN = 15 TIG = 400ms, ADC Count Value Lux = 100 (white LED) CH0-CH Counts CGAIN = 15 Incandescent / Fluorescent Ev = 1, 10, 100 lux Response Ratio Normal (1) ua Supply current Power-down (1) ua Note: 1. Not include SCL/SDA current. March 4, 2014 Rev Datasheet

5 AC Electrical Characteristics (VDD =3.3V, T A = 25 ) Parameter I2C Standard Mode I2C Fast Mode Min. Max. Min. Max. Units f (SCL) khz t (BUF) us t (HDSTA) us t (SUSTA) us t (SUSTO) us t (HDDAT) us t (SUDAT) ns t (LOW) us t (HIGH) us t (f) ns t (r) ns Parameter Measurement Information t (BUF) SDA V IH V IL t (HDSTA) t (r) t (HDDAT) t (f) t (SUDAT) t (SUSTA) t (SUSTO) SCL V IH V IL STOP START t (LOW) t (HIGH) START STOP March 4, 2014 Rev Datasheet

6 Spectral Response vs. Wavelength Spectral Response CH0-CH1(normalized) 0.4 CH0-CH Wavelength(nm) Sensor Output Counts vs. Temperature 1.2 Output Counts(normalized) VS Tempurature 1 Output Counts(Normalized) Output Counts Temperature( ) Sensor Output Counts vs. VDD 1.2 Output Counts(normalized) VS VDD 1 Output Counts(Normalized) Output Counts VDD(Volt) March 4, 2014 Rev Datasheet

7 TIG vs. Sensitivity (High Light Condition, CGAIN = 15, TIG=400ms) ADC Count Value (CH0-CH1) TIG VS Sensitivity (High Light) TIG=400ms TIG=200ms TIG=100ms Lux TIG vs. Sensitivity (Low Light Condition, CGAIN = 15, TIG=400ms) TIG Vs Sensitivity (Low Light) ADC Count Value (CH0-CH1) TIG=400ms TIG=200ms TIG=100ms Lux March 4, 2014 Rev Datasheet

8 I 2 C Bus Overview The data on the SDA line must be stable during the HIGH period of the clock. The HIGH or LOW state of the data line can only change when the clock signal on the SCL line is LOW. To address a specific device, the master initiates a START condition by pulling the data signal line (SDA) from a HIGH to a LOW logic level while SCL is HIGH. All slaves on the bus shift in the slave address byte on the rising edge of SCL, with the last bit indicating whether a read or write operation is intended. During the ninth clock pulse, the slave being addressed responds to the master by generating an Acknowledge and pulling SDA LOW. Data transfer is then initiated and eight bits of data are sent, followed by an Acknowledge bit. During data transfer, SDA must remain stable while SCL is HIGH. Any change in SDA while SCL is HIGH is interpreted as a START or STOP condition. Once all data have been transferred, the master generates a STOP condition, indicated by pulling SDA from LOW to HIGH while SCL is HIGH. The device that initiates the transfer is called a master, and the devices controlled by the master are slaves. The bus must be controlled by a master device that generates the serial clock (SCL), controls the bus access, and generates START and STOP conditions. I 2 C Bus Address Interface and control of the CG5162TC is accomplished through a two-wire serial interface to a set of registers that provide access to device control functions and output data. The serial interface is compatible with I 2 C bus Fast-Mode. To communicate with the CG5162TC, the master must first address slave devices via a slave address byte. The slave address byte consists of seven address bits, and a direction bit indicating the intent of executing a read or write operation. The slave address byte of CG5162TC is 0x20. March 4, 2014 Rev Datasheet

9 I 2 C Bus Protocols The CG5162TC implements the following protocols of the I 2 C specification: Write Byte Protocol Read Byte Protocol Write Burst Protocol Read Burst Protocol Write Byte Protocol Read Byte Protocol Write Burst Protocol Read Burst Protocol Note: March 4, 2014 Rev Datasheet

10 Register Table The CG5162TC is controlled and used via below registers. Addr. Bits Type Default Setting Name Register Function 0x00 [7:0] RO 0x26 P_NO Product number 0x01 [15:8] RO 0x11 P_NO Product number 0x Reserved [7:0] RW 0x04 OP_MODE Operation mode [7:4] RW 0x0 - Reserved. The field is always 0. [3] RW 0 - Must set to 0 0x03 [2] RW 1 - Must set to 1 Power down control [1] RW 0 PD 0: Chip active 1: Chip power down [0] RW 0 - Must set to 0 Integration time (TIG) is selected by TIG_SEL. The standard value with default setting is as following. Integration time (TIG) TIG_SEL Value 0x04 [7:0] RW 0x94 TIG_SEL 1T = 2.7ms (Typical) 0x00 1T = 2.7ms (Typical) 0x01 2T = 5.4ms (Typical) 0x02 19T = 51.3ms (Typical) 0x13 37T = 100ms (Typical) 0x25 74T = 200ms (Typical) 0x4A 148T = 400ms (Typical) 0x94 255T = 688.5ms (Typical) 0xFF [7:0] RW 0xFF CGAIN Current gain, CGAIN used to increase the light sensitivity (Counts/Lux). Note: The CGAIN byte should be consisted of two the same nibbles, means the following CGAIN_0 and CGAIN_1 should be written the same value. 0x05 Current gain for channel 0. [7:4] RW 0xF CGAIN_0 The range of CGAIN_0 is 0x0 ~ 0xF. The value of CGAIN_0 must be the same as CGAIN_1. [3:0] RW 0xF CGAIN_1 Current gain for channel 1. The range of CGAIN_1 is 0x0 ~ 0xF. The value of CGAIN_1 must be the same as CGAIN_0. 0x Reserved Reserved 0x1F Reserved 0x20 [0] RO - UPDATE User should read this register first for updating following register 0x21 ~ 0x24. When micro-controller read this register, the shortest period must be longer than integration time (TIG ). 0x21 [7:0] RO - CH0_LB ADC channel 0, Low byte 0x22 [15:8] RO - CH0_HB ADC channel 0, High byte 0x23 [7:0] RO - CH1_LB ADC channel 1, Low byte 0x24 [15:8] RO - CH1_HB ADC channel 1, High byte 0x Reserved Reserved 0xFF Reserved Note: RO = Read Only; RW = Read/Write. Reserved bytes must not be accessed otherwise unpredictable results may occur. March 4, 2014 Rev Datasheet

11 Basic Operation After starting the device, user first write PD=1 to power down the device. User could set the device to active mode by writing PD=0. To operate the device in active mode, issue a command to access the UPDATE (register 0x20). User should read this register first for updating following register 0x21~0x24. When micro-controller read the UPDATE register, the shortest period must be longer than integration time (TIG ). The integration time is 400ms (default value). After 400 ms, the conversion results will be available in the CH0 (register 0x21 ~ 0x22) and CH1 (register 0x23 ~ 0x24). Lux Calculating User could calculate lux value by using the following equation (for white LED) For CH0 < 65535, Lux = (CH0 - CH1) x (15 / CGAIN_0) x (148 / TIG_SEL) x For CH0 = 65535, Lux = (CH0) x (15 / CGAIN_0) x (148/ TIG_SEL) x March 4, 2014 Rev Datasheet

12 Package Outlines (Unit: mm) Notes: 1. All dimension are in millimeter tolerance is +/- 0.2mm unless otherwise noted. 2. Specifications are subject to change without notice. Recommended PCB Layout (Unit: mm) Notes: 1. All dimensions are in millimeters. 2. The tolerances unless mentioned is ±0.1mm. March 4, 2014 Rev Datasheet

13 Recommended Condition for Infrared Reflow Surface Mounting Condition In the automatic mounting of the SMD1208 to the PCB, any bending, expanding, and pulling forces against the SMD1206 should be minimized to prevent the electrical failures or mechanical damaged. Reflow Soldering and Temperature Profile The SMD1206 is designed for the reflow soldering process. Too high temperature or too large temperature gradient may cause the electrical and optical failures. March 4, 2014 Rev Datasheet

14 Package Dimension of Tape and Reel Carrier Tape Dimensions Note: The tolerances unless mentioned is ±0.1mm Reel Dimensions Update History Revision Date Update 1.00 September 27, 2013 Preliminary version 1.10 December 28,2013 Application Circuit Operating Characteristics and Electrical Characteristics Sensor Output Counts vs. VDD 1.20 March 04, 2014 Detailed Description Recommended PCB Layout Package Dimension of Tape and Reel March 4, 2014 Rev Datasheet