Surface - Mount Ambient Light Sensor ALS-PT19-315C/L177/TR8 Features ‧Close responsively to the human eye spectrum ‧Light to Current, analog output ‧Good output linearity across wide illumination range ‧Low sensitivity variation across various light sources ‧Guaranteed temperature performance, -40 C to 85 C ‧Wide supply voltage range, 2.5V to 5.5V ‧Size : 1.7mm(L)*0.8mm(W)*0.6mm(H) ‧RoHS compliant and Pb Free package o o Description The ALS-PT19-315C/L177/TR8 is consisting of phototransistor in miniature SMD. EVERLIGHT ALS series product are a good effective solution to the power saving of display backlighting of mobile appliances, such as the mobile phones, NB and PDAs. Due to the high rejection ratio of infrared radiation, the spectral response of the ambient light sensor is close to that of human eyes. Applications ‧Detection of ambient light to control display backlighting Mobile devices – mobile phones, PDAs Computing device – TFT LCD monitor for Notebook computer Consumer device – TFT LCD TV, video camera, digital camera, toys ‧Automatic residential and commercial management ‧Automatic contrast enhancement for electronic signboard ‧Ambient light monitoring device for daylight and artificial light – Street light, CCD/CCTV Everlight Electronics Co., Ltd. Document No: DAS-019-002 Rev2.0 1 http:\\www.everlight.com Jan. 25, 2008 Surface - Mount Ambient Light Sensor ALS-PT19-315C/L177/TR8 Package Dimensions Top View Collector Emitter Collector Mark Bottom View Unit: mm Tolerances: ± 0.1mm Everlight Electronics Co., Ltd. Document No: DAS-019-002 Rev2.0 2 http:\\www.everlight.com Jan. 25, 2008 Surface - Mount Ambient Light Sensor ALS-PT19-315C/L177/TR8 Absolute Maximum Ratings (Ta=25°C) Parameter Symbol Rating Unit Vcc -0.5~6.0 V Operating Temperature Range Topr -40 ~ +85 °C Storage Temperature Range Tstg -40 ~ +100 °C Soldering Temperature Range [Note1] Tsol 260 ± 10 °C Supply Voltage [Note1] Note1: For detail reflow time and the recommended temperature profile, please refer to page 8. Recommended Operating Conditions (Ta=25°C) Parameter Symbol Min. Max. Unit Operating Temperature Topr -40 +85 °C Supply Voltage Vcc 2.5 5.5 V Everlight Electronics Co., Ltd. Document No: DAS-019-002 Rev2.0 3 http:\\www.everlight.com Jan. 25, 2008 Surface - Mount Ambient Light Sensor ALS-PT19-315C/L177/TR8 Electrical and Optical Characteristics (Ta=25°C) Parameter Symbol MIN. TYP. MAX. Unit Test Condition ICEO --- --- 0.1 uA VCE=10V, Ev= 0Lux VCE(sat) --- --- 0.4 V IC=2mA, Ev= 1000Lux IPH1 7 10 --- uA VCE=5V, Ev= 100Lx IPH2 200 230 --- uA VCE=5V, Ev= 1000Lx IPH3 950 1100 --- uA VCE=5V, Ev= 1000Lx IPH3 / IPH2 --- 4.8 --- --- VCE=5V, Ev= 1000Lx Vo 4.5 4.6 --- V Vcc=5V, Ev= 1000Lx [Note2] RL=75K Peak Sensitivity Wavelength λp --- 630 --- nm Sensitivity Wavelength Range λ 390 --- 700 nm Rise time tr --- 0.11 --- ms Fall time tf --- 0.22 --- ms Dark Current Collector-Emitter Saturation Voltage Light Current Photocurrent Ratio Saturation Output Voltage [Note1] [Note1] [Note2] VCC = 5 V RL = 7.5KΩ Note: 1. White Fluorescent light (Color Temperature = 6500K) is used as light source. However, White LED is substituted in mass production. 2. Illuminance by CIE standard illuminant-A / 2856K, incandescent lamp. Everlight Electronics Co., Ltd. Document No: DAS-019-002 Rev2.0 4 http:\\www.everlight.com Jan. 25, 2008 Surface - Mount Ambient Light Sensor ALS-PT19-315C/L177/TR8 Typical Electrical and Optical Characteristics Curves Fig.1 Light Current vs. Illuminance Fig.2 Output Voltage vs. Illuminance 10 10 o Ta=25 C; Vcc=5V Flourescent Light incandescent Lamp 1 Ouput Voltage Vo (V) Output Current (mA) 1 0.1 0.1 0.01 o Ta=25 C ; Vcc=5V Fluorescent light RL=1KΩ Fluorescent light RL=7.5KΩ Fluorescent light RL=75KΩ 1E-3 0.01 1E-4 1 10 100 1000 10000 1 10 Fig.3 Spectral Response 100 Fig.4 Spectral Response (Typ.) 1000 10000 Light current vs. Supply Voltage 1 .0 4 1 .0 3 80 Ev = 100 Lux 1 .0 2 Relative light current Relative Sensitivity (%) 100 Illuminance Ev (Lux) Illuminance Ev (Lux) 60 40 20 1 .0 1 1 .0 0 0 .9 9 0 .9 8 0 .9 7 0 300 400 500 600 700 800 900 0 .9 6 2.0 Wavelength λ (nm) Fig.5 3 .0 3 .5 4 .0 4.5 V c c (V ) Light Current vs. Temperature Fig.6 (LED) Light Current vs. Illuminance 250 1.3 Light current vs. Illuminance Ev = 100 Lux Light current (uA) 1.2 Relative light current 2.5 1.1 1.0 0.9 0.8 200 150 100 50 0.7 0 0.6 -40 -20 0 20 40 Temperature ( ℃) Everlight Electronics Co., Ltd. Document No: DAS-019-002 Rev2.0 60 80 100 0 100 200 300 400 500 600 700 800 900 10001100 illuminance (Lux) 5 http:\\www.everlight.com Jan. 25, 2008 Surface - Mount Ambient Light Sensor ALS-PT19-315C/L177/TR8 Converting Photocurrent to Voltage Vcc Light Source Iph Vout RL CL GND Note: 1. The output voltage (Vout) is the product of photocurrent (IPH) and loading resistor (RL) 2. A right loading resistor shall be chosen to meet the requirement of maximum ambient light, and output saturation voltage: Vout(max.) = Iout(max.) × RL ≦ Vout(saturation)＝Vcc－0.4V Everlight Electronics Co., Ltd. Document No: DAS-019-002 Rev2.0 6 http:\\www.everlight.com Jan. 25, 2008 Surface - Mount Ambient Light Sensor ALS-PT19-315C/L177/TR8 Recommended method of storage Reflow Terms: JEDEC Level 4 Specification Dry box storage is recommended as soon as the aluminum bag has been opened prevent 1. Over-current-proof Customer must apply resistors for protection, otherwise slight voltage shift might cause big current happen. (Burned-out might happen). 2. Storage (1) Do not open moisture proof bag before components are ready to use. ℃ or less and (2) Before opening moisture proof bag, components should be kept at 30 90%RH or less. (3) Components should be used within a year. ℃ or less and (4) After opened moisture proof bag, components should be kept at 30 70%RH or less. (5) Components should be used within 168 hours after opened moisture proof bag. (6) If the moisture absorbent material (silica gel) has faded away or the components have exceeded the storage time, baking treatment should be performed using the ℃ for 24 hours) following conditions. (Baking treatment: 60±5 ESD Precaution: Proper storage and handing procedures should be followed to prevent ESD damage to the devices especially when they are removed from the Anti-static bag. Electro-Static Sensitive Devices warning labels are on the packing. Everlight Electronics Co., Ltd. Document No: DAS-019-002 Rev2.0 7 http:\\www.everlight.com Jan. 25, 2008 Surface - Mount Ambient Light Sensor ALS-PT19-315C/L177/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. Everlight Electronics Co., Ltd. Document No: DAS-019-002 Rev2.0 8 http:\\www.everlight.com Jan. 25, 2008 Surface - Mount Ambient Light Sensor ALS-PT19-315C/L177/TR8 Packing Quantity Specification 3000 PCS/ 1 Reel Label Format xxxxxx xxxxxx RoHS xxxxxxxxxxxx xxxx xxxxxxxx Reel Dimensions Unit: mm Tolerance: ±0.1mm Everlight Electronics Co., Ltd. Document No: DAS-019-002 Rev2.0 9 http:\\www.everlight.com Jan. 25, 2008 Surface - Mount Ambient Light Sensor ALS-PT19-315C/L177/TR8 Tape Dimensions Emitter Collector Unit: mm Tolerance: ±0.1mm Everlight Electronics Co., Ltd. Document No: DAS-019-002 Rev2.0 10 http:\\www.everlight.com Jan. 25, 2008 Surface - Mount Ambient Light Sensor ALS-PT19-315C/L177/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. These specification sheets include materials protected under copyright of EVERLIGHT corporation. Please don’t reproduce or cause anyone to reproduce them without EVERLIGHT’s consent. Everlight Electronics Co., Ltd. Document No: DAS-019-002 Rev2.0 11 http:\\www.everlight.com Jan. 25, 2008