APS-16D25-11-DF8-TR8 EVERLIGHT | Alldatasheet
Document overview
- Manufacturer or author: pROVIDED bY alldatasheet.com(free datasheet download site)
- PDF pages: 14
Technical content
Features
- Maximum detectable illumination up to 57671Lux
- Maximum resolution 0.01375Lux/count
- Human eye type spectral response (IR rejection)
- 16-bit effective resolution
- Provides an output count proportional to ambient light over the full operating range Proximity sensing
- IR LED driver current can be selected between 100mA and 200mA
- 8-bit effective resolution
- Storage temperature range from -40°C to 85°C
- Operating temperature range from -40°C to 85°C
- Operating voltage range: 2.5V ~ 3.6V
- Size: 2.1mm (L) x 2.0mm (W) x 0.6mm (H)
- RoHS compliant and Pb Free package
Description
The APS-16D25-11-DF8/TR8 is a digital-output ambient light sensor with built-in IR driver and I 2C interface. The APS-16D25-11-DF8/TR8 has signal processing circuit on a CMOS integrated circuit to provide light measurements over an effective 16bit dynamic range with a response similar to that of human eye. The APS-16D25-11-DF8/TR8 uses user-selected modulation frequency to drive the external IR LED and employ a noise cancellation scheme to highly reject unwanted IR noise. The APS-16D25-11-DF8/TR8 has excellent temperature compensation, robust refresh rate setting without any external RC low-pass filter. Connected with an infrared LED (IR-LED), the built-in proximity sensor can reveal the closeness of approaching/departing objects. This device is intended primarily for use in applications in which measurement of ambient light and proximity sensing is a necessary, such as laptop computers, PDA, camcorders, mobile phone, smart phone.
Ambient Light Sensor and Proximity Sensor with I 2C Interface APS-16D25-11-DF8/TR8
Applications
- Detection of ambient light for controlling the backlighting of TFT LCD display
- Automatic residential and commercial lighting management
- Automatic contrast enhancement for electronic signboard
- Mobile phone, Smart phone, PDA, Table PC. Package Dimensions Unit: mm Tolerances: ± 0.2mm
Ambient Light Sensor and Proximity Sensor with I 2C Interface APS-16D25-11-DF8/TR8 PCB Soldering PAD Pin Description PP PP in No. in No. in No. in No. Pin na me Pin na me Pin na me Pin na me Pin f un ct io n Pin f un ct io n Pin f un ct io n Pin f un ct io n 1 ARDR I 2C address pin. High level: 0xB0; Low level: 0x90 2 VDD Power supply voltage: 2.5V /uniFF5E 3.6V
3 GND Ground: The thermal pad is also connected to the GND pin
4 NC No connected
5 SCL I 2C serial clock line
6 SDA I 2C serial data line
7 INT Interrupt pin: LO for interrupt alarming. The INT pin is an open drain 8 IRDR IR-LED driver pin connecting to the cathode of the external IR-LED. The source current of the IR-LED driver can be programmed through I 2C
Ambient Light Sensor and Proximity Sensor with I 2C Interface APS-16D25-11-DF8/TR8 Absolute Maximum Ratings Supply voltage V DD -0.3 /uniFF0D 5.5 V Operation temperature Ta -40 /uniFF0D 85 ° C Storage temperature Ts -40 /uniFF0D 85 ° C Recommended Operating Conditions Supply voltage V DD 2.5 2.8 3.6 V Clock frequency of I 2C f I2C /uniFF0D /uniFF0D 400 kHz Operation temperature Ta -40 /uniFF0D 85 ° C Electrical and Optical Characteristics (Ta=25 ℃℃℃℃ , V op =3.3 V) Note: 1. Power supply (V DD ) is 3.3V, and 01h=0x00, 09h=0x00 without the IR-LED. 2. Power supply (V DD ) is 3.3V, halogen lamp light source and room temperature is 25℃. 3. The light source of IR-LED that the peak wavelength is 850nm. Supply current I DD Note 1 90 μA Shutdown current I SD Note 2 1 μA Full scale ADC code for ALS ALS_FS 16-bit effective resolution 65535 Counts Dark output count for ALS ALS_0 E=0Lux 3 Counts ALS count output with 0.11Lux/count ALS_1 E=300Lux, White LED Range1(7209 Lux) 2318 2727 3136 Counts ALS count output with 0.22Lux/count ALS_2 E=300Lux, White LED Range2(14418 Lux) 1158 1363 1567 Counts ALS count output with 0.44Lux/count ALS_3 E=300Lux, White LED Range3(28836 Lux) 578 681 784 Counts ALS count output with 0.88Lux/count ALS_4 E=300Lux, White LED Range4(57671 Lux) 289 341 392 Counts Full scale ADC code for PS PS_FS 8-bit effective re solution 255 Counts Dark output count for PS PS_0 E=0Lux 3 Counts PS count output PS_1 Ee=200uW/cm2, Note 3 85 100 115 Counts Peak sensitivity wavelength for ALS λp 1 Note 2 550 nm Peak sens itiv ity wavelength for PS λp 2 Note 2 850 nm Logic high, I 2 C V IH Note 2 1.5 VDD V Logic low, I 2 C V IL Note 2 0.4 V
Ambient Light Sensor and Proximity Sensor with I 2C Interface APS-16D25-11-DF8/TR8 Timing Chart Principle of Operation Digital Interface The APS-16D25-11-DF8/TR8 contains an eight 8-bit registers accessed via the I 2C bus. All operations can be controlled by the command register. The sample command structure makes the user easy to program the operation setting and latch the light data from the APS-16D25-11-DF8/TR8. In timing chart, it is the APS-16D25-11-DF8/TR8 command format description for reading and writing operation between the host and the APS-16D25-11-DF8/TR8. Slave Address The APS-16D25-11-DF8/TR8 provides the slave address selection function for the system design convenience. The address can be defined by ADDR pin via high, and low voltage. In following table, it describes the slave address selection method and the cooperation with the command setting. ADDR ID Address Command Address Operation PULL LOW 0x90 0x90 Write Command to APS-16D25-11-DF 8/TR8 0x91 Read Data from APS-16D25-11-DF8/TR8 PULL HIGH 0xB0 0xB0 Write Command to APS-16D25-11-D F8/TR8 0xB1 Read Data from APS-16D25-11-DF8/TR8
Ambient Light Sensor and Proximity Sensor with I 2C Interface APS-16D25-11-DF8/TR8 Function Description In the following table, there are 12 registers that are available in the APS-16D25-11-DF8/TR8. The APS-16D25-11-DF8/TR8 has 16-bit resolution for ALS. The host first reads the data from the 0x02 register data and then reads the 0x03 register data to complete the word mode data collection. The APS-16D25-11-DF8/TR8 has 8-bit resolution for PS. The PS data register is in the register 0x0A. The following table summarizes their function. ADDR REG NAME BIT Default 7 6 5 4 3 2 1 0 01h ALS CMD GAIN1_ ALS GAIN0_ ALS 0 0 IT1_AL S IT0_AL S INT_AL S SD_AL S 01h 02h ALS DT1 DT15_A LS DT14_A LS DT13_A LS DT12_A LS DT11_A LS DT10_A LS DT9_AL S DT8_AL S 00h 03h ALS DT2 DT7_AL S DT6_AL S DT5_AL S DT4_AL S DT3_AL S DT2_AL S DT1_AL S DT0_AL S 00h 04h ALS THDH1 THDH1 5_ALS THDH1 4_ALS THDH1 3_ALS THDH1 2_ALS THDH1 1_ALS THDH1 0_ALS THDH9 _ALS THDH8 _ALS FFh 05h ALS THDH2 THDH7 _ALS THDH6 _ALS THDH5 _ALS THDH4 _ALS THDH3 _ALS THDH2 _ALS THDH1 _ALS THDH0 _ALS FFh 06h ALS THDL1 THDL1 5_ALS THDL1 4_ALS THDL1 3_ALS THDL1 2_ALS THDL1 1_ALS THDL1 0_ALS THDL9 _ALS THDL8 _ALS 00h 07h ALS THDL2 THDL7 _ALS THDL6 _ALS THDL5 _ALS THDL4 _ALS THDL3 _ALS THDL2 _ALS THDL1 _ALS THDL0 _ALS 00h 08h STA TUS ID1 ID0 FLG_P S FLG_A LS 0 0 0 0 00h 09h PS CMD INT_CT RL SLP1_P S SLP0_P S IRDR_P S IT1_PS IT0_PS INT_PS SD_PS 01h 0Ah PS DT DT7_P S DT6_P S DT5_P S DT4_P S DT3_P S DT2_P S DT1_P S DT0_P S 00h 0Bh PS THDH THDH7 _PS THDH6 _PS THDH5 _PS THDH4 _PS THDH3 _PS THDH2 _PS THDH1 _PS THDH0 _PS FFh 0Ch PS THDL THDL7 _PS THDL6 _PS THDL5 _PS THDL4 _PS THDL3 _PS THDL2 _PS THDL1 _PS THDL0 _PS 00h
Ambient Light Sensor and Proximity Sensor with I 2C Interface APS-16D25-11-DF8/TR8 ALS Command Register (01 hex) GAIN_ALS: Bits 7 and 6. The Gain setting for sensitivity range selection of ALS can be adjusted via I 2C. The following table lists the possible values of GAIN_ALS. BITS 7:6 MAX DETECT RANGE LUX/LSB 00 57671 0.88 01 28836 0.44 10 14418 0.22 11 7209 0.11 2. IT_ALS: Bits 3 and 2. The APS-16D25-11-DF8/TR8 fundamental refresh timing of ALS can be tuned by IT_ALS. To cooperate with the ALS command register, (IT1_ALS :IT0_ALS), the designer has a very wide rang and flexible way to choose a refresh time for the system programming demand. In following table, the APS-16D25-11-DF8/TR8 fundamental refresh timing, (IT1_ALS:IT0_ALS) (0 : 0) =x1, is 1T, i.e. → 100ms. The other related refresh timing in the table are all changed by comparing with the fundamental timing. As the example in following table, it is below showing the timing table that the system designer can have a flexible way for choosing the desired fresh timing to. BITS 3:2 RELATIVE REFRESH TIMING REFRESH TIMING TABLE for ALS (Example) 00 1T 100ms 01 2T 200ms 10 4T 400ms 11 8T 800ms Comparison Table for ALS (Sensitivity Range V.S Refresh Timing) ALS function Relative Refresh Timing Bits 3:2 00 01 10 11 1T (100ms) 2T (200ms) 4T (400ms) 8T (800ms) Detection Range Bits 7:6 Max. Lux Lux/ LSB Max. Lux Lux/ LSB Max. Lux Lux/ LSB Max. Lux Lux/ LSB 00 56761 0.88 28836 0.44 14418 0.22 7209 0.11 01 28836 0.44 14418 0.22 7209 0.11 3604 0.055 10 14418 0.22 7209 0.11 3604 0.055 1802 0.0275 11 7209 0.11 3604 0.055 1802 0.0275 901 0.01375 INT_ALS: Bit 1. INT_ALS = 0, disable ALS interrupt. INT_ALS = 1, enable ALS interrupt. BIT 1 OPERATION
0 ALS INT Disable
1 ALS INT Enable (Default)
SD_ALS: Bit 0. SD_ALS = 0, enable ALS. SD_ALS = 1, disable ALS. BIT 0 OPERATION
0 ALS SD Enable
1 ALS SD Disable
Ambient Light Sensor and Proximity Sensor with I 2C Interface APS-16D25-11-DF8/TR8 ALS Data Register (02 hex and 03 hex) The APS-16D25-11-DF8/TR8 has two 8-bit read-only registers to hold the data from LSB to MSB for ADC of ALS. The most significant bit (MSB) is accessed at 02 hex, and the least significant bit (LSB) is accessed at 03 hex. For 16-bit resolution, the data is from DT0_ALS to DT15_ALS. The registers are refreshed after every conversion cycle. ALS Threshold Register (04, 05, 06 and 07 hex) An ALS interrupt event (FLG_ALS) is governed by the high and low thresholds in register 04, 05, 06, and 07hex (ALS_THDH1, ALS_THDH2, ALS_THDL1, and ALSTHDL2). The user write a high and low threshold value to these registers and the APS-16D25-11-DF8/TR8 will issue an ALS interrupt flag if the actual count stored in registers 02hex and 03hex are outside the user’s programmed window. The user must write 0 to clear FLG_ALS. Status Register (08 hex) ID number; Bits 7 and 6. The ID number is 0b00 for APS-16D25-11-DF8/TR8. This registers is read only. PS Interrupt flag; Bit 5. This is the status bit of the interrupt for PS. The bit is set to logic high when the interrupt thresholds have been triggered, and logic low when not yet triggered. Once triggered, INT pin stays low and the status bit stays high. Both interrupt pin and the status bit are cleared by writing “0”. BIT 5 OPERATION
0 Interrupt is cleared or not triggered yet
1 Interrupt is triggered
ALS Interrupt flag; Bit 4. This is the status bit of the interrupt for ALS. The bit is set to logic high when the interrupt thresholds have been triggered, and logic low when not yet triggered. Once triggered, INT pin stays low and the status bit stays high. Both interrupt pin and the status bit are cleared by writing “0”. BIT 4 OPERATION PS Command Register (09 hex) Interrupt Control; Bit 7. This bit is used to control the interrupt mode. BIT 7 OPERATION
0 Set /INT pin low if FLG_ALS or FLG_PS high (logic al OR)
1 Set /INT pin low if FLG_ALS and FLG_PS high (logi cal AND)
- PS sleep time: Bits 6, and 5. The proximity sleep time between IR LED pulses can be adjusted via I 2C. The following table lists the possible values of SLP_PS. BIT 6:5 PROXIMITY SLEEP TIME 00 10ms; sleep time between IR LED pulses is 10ms 01 30ms; sleep time between IR LED pulses is 30ms 10 90ms; sleep time between IR LED pulses is 90ms 11 270ms; sleep time between IR LED pulses is 270ms
Ambient Light Sensor and Proximity Sensor with I 2C Interface APS-16D25-11-DF8/TR8 3. Amplitude of IR sink current: Bit 4. This device provides current source to sink an external IR LED. The sink current can be programmed through IRDR_PS. BIT 4 IRDR PIN SINK CURRENT 0 100mA current sink 1 200mA current sink IT_PS: Bits 3 and 2. The APS-16D25-11-DF8/TR8 fundamental refresh timing of PS can be tuned by IT_PS. To cooperate with the PS command register, (IT1_PS :IT0_PS), the designer has a very wide rang and flexible way to choose a refresh time for the system programming demand. In following table, APS-16D25-11-DF8/TR8 fundamental refresh timing, (IT1_PS : IT0_PS) → (0 : 0) =x1, is 1T, i.e. 0.2ms. The other related refresh timing in the table are all changed by comparing with the fundamental timing. As the example in following table, it is below showing the timing table that the system designer can have a flexible way for choosing the desired fresh timing to APS-16D25-11-DF8/TR8. BITS 3:2 RELATIVE REFRESH TIMING REFRESH TIMING TABLE for PS (Example) 00 1T 0.2ms 01 1.5T 0.3ms 10 2T 0.4ms 11 2.5T 0.5ms 5. INT_PS: Bit 1. INT_PS = 0, disable PS interrupt. INT_PS = 1, enable PS interrupt. BIT 1 OPERATION
0 PS INT Disable
1 PS INT Enable
- SD_PS: Bit 0. SD_PS = 0, enable PS. SD_PS = 1, disable PS. BIT 0 OPERATION
0 PS SD Enable
1 PS SD Disable
PS Data Register (0A hex) The APS-16D25-11-DF8/TR8 has 8-bit read-only registers to hold the data for ADC of PS. The registers are refreshed after every conversion cycle. PS Threshold Register (0B and 0C hex) A proximity interrupt event (FLG_PS) is governed by the high and low thresholds in register 0Bhex and 0Chex respectively. The user write a high and low threshold value to these registers and the APS-16D25-11-DF8/TR8 will issue an PS interrupt flag if the actual count stored in registers 0Ahex are outside the user’s programmed window. The user must write 0 to clear FLG_PS. If the interrupt occurs due to near side (high threshold) and FLG_PS is clear by host, then interrupt will never occur again unless the device moves to far side (low threshold), and vice versa.
Ambient Light Sensor and Proximity Sensor with I 2C Interface APS-16D25-11-DF8/TR8 Spectral Response Distance Detection for PS
Ambient Light Sensor and Proximity Sensor with I 2C Interface APS-16D25-11-DF8/TR8 Recommended Solder Profile Notice: 1. Reflow soldering should not be done more than two times. 2. When soldering, do not put stress on the devices during heating. 3. After soldering, do not warp the circuit board. Soldering Iron Each terminal is to go to the tip of soldering iron temperature less than 350 for 3℃ seconds within once in less than the soldering iron capacity 25W. Leave two seconds and more intervals, and do soldering of each terminal. Be careful because the damage of the product is often started at the time of the hand solder. Repairing Repair should not be done after the device have been soldered. When repairing is unavoidable, a double-head soldering iron should be used (as below figure). It should be confirmed beforehand whether the characteristics of the device will or will not be damaged by repairing.
Ambient Light Sensor and Proximity Sensor with I 2C Interface APS-16D25-11-DF8/TR8 Packing Quantity Specification
2000 PCS/ 1 Reel
Unit: mm Tolerances: ± 0.1mm
Ambient Light Sensor and Proximity Sensor with I 2C Interface APS-16D25-11-DF8/TR8 Note: 1. Above specification may be changed without notice. EVERLIGHT will reserve authority on material change for above specification. 2. When using this product, please observe the absolute maximum ratings and the instructions for using outlined in these specification sheets. EVERLIGHT assumes no responsibility for any damage resulting from use of the product which does not comply with the absolute maximum ratings and the instructions included in these specification sheets. 3. Do not directly touch device. 4. These specification sheets include materials protected under copyright of EVERLIGHT’s corporation. Please don’t reproduce or cause anyone to reproduce them without EVERLIGHT’s consent.