MLX75304 Light-to-Frequency SensorEyeC Features and Benefits Low ppm defects Converts light intensity to an output Solder reflow 260degC, MSL3 frequency High dynamical light range Automotive version is AEC-Q100 qualified High linearity Operating temperature -20..85degC or -40..125degC (automotive version) Low temperature dependency RoHS compliant lead-free Supply voltage range 3V to 5.5V Easy interface to microcontroller Applications General • Ambient Light Sensor • LCD Screen Backlight Dimming Sensor for Mobile Phones, Digital Frames • LED Light Sensor o LED monitoring o Closed loop control for LED light intensity & LED color Automotive • Cockpit Light Dimming • LED Headlight Closed Loop Control • Hand Presence Detection • Sunload Sensor Printers/Copiers • Paper feed detection • Paper size and orientation detection • Toner cartridge presence detection Ordering Information Part No. MLX75304EXD MLX75304EXE MLX75304KXD MLX75304KXE 390107530401 Rev. 001 Temperature Code Package Code S XD -20°C to 85°C SO8 Open Cavity S XE -20°C to 85°C DFN3x3 Open Cavity K XD -40°C to 125°C SO8 Open Cavity K XE -40°C to 125°C DFN3x3 Open Cavity Page 1 of 9 Option Code Delivery Form Tape on Reel Tape on Reel Tape on Reel Tape on Reel Preliminary Datasheet July/08 MLX75304 Light-to-Frequency SensorEyeC 1 General Description The MLX75304 is a CMOS integrated Light-to-Frequency sensor with an integrated photodiode. The sensor is intended for automotive applications and responds in a range of 500nm to 1000nm. The MLX75304 block diagram is shown in Section 2 and contains following blocks: a photodiode, a current to frequency converter to convert the photocurrent into a useful output frequency and a digital push-pull output stage. 2 Functional Diagram Table of Contents 1 General Description ...................................................................................................2 2 Functional Diagram....................................................................................................2 3 Pin Definitions and Descriptions (SO8 Package)....................................................3 4 Pin Definitions and Descriptions (DFN Package)....................................................3 5 Absolute Maximum Ratings ......................................................................................3 6 MLX75304 Specifications ..........................................................................................4 7 Spectral Response.....................................................................................................5 8 Applications Information ...........................................................................................5 9 SO8 Open Cavity Package Information....................................................................6 10 DFN3x3 Open Cavity Package Information..............................................................7 11 Standard information regarding manufacturability of Melexis products with different soldering processes ...................................................................................8 12 ESD Precautions ........................................................................................................8 13 Disclaimer ...................................................................................................................9 390107530401 Rev. 001 Page 2 of 9 Preliminary Datasheet July/08 MLX75304 Light-to-Frequency SensorEyeC 3 Pin Definitions and Descriptions (SO8 Package) Pin Number 1 Pin Name Description Type Vss Ground connection Ground 2 OUT Digital frequency output Digital push-pull output 3 Vdd Power supply Supply 4 OEB Enable for pin OUT. Active low. Digital input with pulldown 5-8 N.C. Not connected Floating 4 Pin Definitions and Descriptions (DFN Package) Pin Number 1 Pin Name Description Type N.C. Not connected Floating 2 Vss Ground connection Ground 3 OUT Digital frequency output Digital push-pull output 4 Vdd Power supply Supply 5 OEB Enable for pin OUT. Active low. Digital input with pulldown 6-10 N.C. Not connected Floating 5 Absolute Maximum Ratings All voltages are referenced to Vss. Symbol Rating Value Vdd Supply Voltage, VDD (over voltage) Vout DC Output Voltage Iout DC Output Current, per Pin TStg Storage Temperature Range, TS VESD-HBM ESD Sensitivity (Human Body Model according to CDF-AEC-Q100) VESD-MM ESD Sensitivity (Machine Model according to CDF-AEC-Q100) Unit -0.3 to 7 V -0.3 to Vdd+0.3V V ±20 mA -40 to 125 °C 2 kV 200 V For proper operation Vout should be constrained to the range Vss≤Vout≤Vdd. Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximumrated conditions for extended periods may affect device reliability. 390107530401 Rev. 001 Page 3 of 9 Preliminary Datasheet July/08 MLX75304 Light-to-Frequency SensorEyeC 6 MLX75304 Specifications All voltages are referenced to Vss. Symbol Parameter Conditions Min Typ 3 Vdd Idd Supply Voltage Static Power Supply Current fD Dark frequency (a), Ee = 0µW/cm² At 25°C At 125°C fO fFS NL10 NL100 Output frequency 2 Full-scale frequency Non-linearity3 Non-linearity3 (a), Ee = 21.7µW/cm² (a), Ee = 430µW/cm² fO = 0 kHz to 10kHz fO = 0 kHz to 100kHz TC Temperature coefficient tsetup SPD λ0.3 Electrical setup-time Area of photodiode Spectral bandwidth Output duty cycle At Vdd=5.5V -10% -1% -2% λ= 540nm λ= 880nm 95% Tamb = 25°C 1 1.2 50 1.6 Max Units Test 5.5 7 V mA V V +10% 1% 2% 0 300 10 0.36 500 30 1000 50% VOL VOH VIL VIH RI,PD Output voltage low Output voltage high Input voltage low Input voltage high Input pull down resistance (a) IOH = 5mA (a) IOH = -5mA (a) (a) (a) TA Operating Temperature Range Temperature Code S Temperature Code K 0 0.6Vdd 0 0.7Vdd 50 -20 -40 60 Hz kHz kHz MHz % % ppm/K ppm/K µs mm² nm % 0.4Vdd Vdd 0.3Vdd Vdd 70 V V V V kOhm 85 125 °C °C V V (a) Vdd=5V, CL=50pF, λ= 880nm 1 The column Test indicates if the specific parameter is tested in production. Following symbols are used: V: the specific parameter is tested in production X: the specific parameter is verified in characterisation, but is not tested in production (e.g. timings and capacitances) D: the specific parameter is guaranteed by design and is not tested as such in production 2 Full-scale frequency is the maximum frequency of the device, corresponding to a typical irradiance of 430µW/cm² at a wavelength of 880nm. Note that this is a hard limit as any higher irradiance will not result in an addition increase of the output frequency. Non-linearity is defined as the deviation from a line fitted in between the dark frequency and the maximum of the indicated range, expressed as a percentage of this maximum. 3 390107530401 Rev. 001 Page 4 of 9 Preliminary Datasheet July/08 1 MLX75304 Light-to-Frequency SensorEyeC 7 Spectral Response Typical Photodiode Spectral Response Curve (%), without Anti Reflection Coating* *There is also an option for an Anti Reflection Coating. This will remove the interference ripples in the figure above. With this special Anti Reflection Coating, the sensitivity curve in function of wavelength will be somewhat lower (typically 4%) but will no longer display interference ripples. 8 Applications Information A typical connection diagram is shown in the figure below. The load capacitance CL is typically formed by the input capacitance of the component that is connected to the sensor output, the wiring capacitance and the output capacitance of the sensor itself. Vdd Ee 3 OEB 4 MLX75304 2 1 OUT CL Decoupling capacitors between Vdd and Vss (1uF in parallel with 100nF) are highly recommended in all configurations. 390107530401 Rev. 001 Page 5 of 9 Preliminary Datasheet July/08 MLX75304 Light-to-Frequency SensorEyeC 9 SO8 Open Cavity Package Information SO8 open cavity package, MSL3, 260˚C soldering profile (target). Lead free component. Same package as MLX75303 (see drawing) 390107530401 Rev. 001 Page 6 of 9 Preliminary Datasheet July/08 MLX75304 Light-to-Frequency SensorEyeC 10 DFN3x3 Open Cavity Package Information DFN open cavity package, MSL3, 260˚C Same package as MLX75303 (see drawing) 390107530401 Rev. 001 soldering Page 7 of 9 profile (target). Lead free component. Preliminary Datasheet July/08 MLX75304 Light-to-Frequency SensorEyeC 11 Standard information regarding manufacturability products with different soldering processes of Melexis Our products are classified and qualified regarding soldering technology, solderability and moisture sensitivity level according to following test methods: Reflow Soldering SMD’s (Surface Mount Devices) • • IPC/JEDEC J-STD-020 Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface Mount Devices (classification reflow profiles according to table 5-2) EIA/JEDEC JESD22-A113 Preconditioning of Nonhermetic Surface Mount Devices Prior to Reliability Testing (reflow profiles according to table 2) Wave Soldering SMD’s (Surface Mount Devices) • EN60749-20 Resistance of plastic- encapsulated SMD’s to combined effect of moisture and soldering heat Solderability SMD’s (Surface Mount Devices) • EIA/JEDEC JESD22-B102 and EN60749-21 Solderability For all soldering technologies deviating from above mentioned standard conditions (regarding peak temperature, temperature gradient, temperature profile etc) additional classification and qualification tests have to be agreed upon with Melexis. The application of Wave Soldering for SMD’s is allowed only after consulting Melexis regarding assurance of adhesive strength between device and board. Melexis is contributing to global environmental conservation by promoting lead free solutions. For more information on qualifications of RoHS compliant products (RoHS = European directive on the Restriction Of the use of certain Hazardous Substances) please visit the quality page on our website: http://www.melexis.com/quality.asp 12 ESD Precautions Electronic semiconductor products are sensitive to Electro Static Discharge (ESD). Always observe Electro Static Discharge control procedures whenever handling semiconductor products. 390107530401 Rev. 001 Page 8 of 9 Preliminary Datasheet July/08 13 Disclaimer Devices sold by Melexis are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. Melexis makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. Melexis reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with Melexis for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by Melexis for each application. The information furnished by Melexis is believed to be correct and accurate. However, Melexis shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interrupt of business or indirect, special incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of Melexis’ rendering of technical or other services. © 2005 Melexis NV. All rights reserved. For additional information contact Melexis Direct: Europe, Africa, Asia: Phone: +32 1367 0495 E-mail: [email protected] America: Phone: +1 603 223 2362 E-mail: [email protected] ISO/TS 16949 and ISO14001 Certified 390107530401 Rev. 001 Page 9 of 9 Preliminary Datasheet July/08