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| MLX75303 Optical Schmitt Trigger Features and Benefits Very high photo sensitivity Supply voltage range 3.0V to 5.5V Standard SO8 package with open cavity Standard DFN3x3 with open cavity TTL and CMOS compatible Open drain output Active low output signal Lead free component, suitable for lead free soldering profile 260C (target), MSL3 Ideal for automotive applications Ordering Information Part No. MLX75303 MLX75303 Temperature Code K -40 to 125 C C K -40 to 125 C C Package Code XD SO8 Open Cavity XE DFN3x3 Open Cavity Option Code Delivery Form Tape On Reel Tape On Reel 3901075303xx Rev. xxx Page 1 of 12 Data Sheet July/07 MLX75303 Optical Schmitt Trigger 1 Functional Diagram 2 General Description The MLX75303 is a CMOS integrated optical Schmitt trigger sensor with an integrated photodiode. The sensor is intended for automotive applications wherein infrared LEDs are used. The MLX75303 block diagram is shown in Section 1 and contains following blocks: a trans impedance amplifier to convert and amplify the photocurrent of the photodiode, a voltage reference, a Schmitt trigger and an open drain output stage. 3901075303xx Rev. xxx Page 2 of 12 Data Sheet July/07 MLX75303 Optical Schmitt Trigger Table of Contents 1 2 3 4 5 6 7 8 9 10 11 12 13 Functional Diagram....................................................................................................2 General Description ...................................................................................................2 Pin Definitions and Descriptions ..............................................................................4 Absolute Maximum Ratings ......................................................................................4 MLX75303 Specifications ..........................................................................................5 Timing diagrams ........................................................................................................6 Test diagrams.............................................................................................................7 Applications Information ...........................................................................................8 SO8 Open Cavity Package Information....................................................................9 DFN3x3 Open Cavity Package Information............................................................10 Standard information regarding manufacturability of Melexis products with different soldering processes .................................................................................11 ESD Precautions ......................................................................................................11 Disclaimer .................................................................................................................12 3901075303xx Rev. xxx Page 3 of 12 Data Sheet July/07 MLX75303 Optical Schmitt Trigger 3 Pin Definitions and Descriptions Pin Number 1 2 3 4 5 6 7 8 Pin Name Vss OUT Vdd N.C. N.C. N.C. N.C. N.C. Ground connection Active low (= light on) output Power supply Not connected Not connected Not connected Not connected Not connected Description Ground Open drain output Supply Floating Floating Floating Floating Floating Type 4 Absolute Maximum Ratings Valid for all MLX75303 versions. All voltages are referenced to Vss. Symbol Vdd Vout Iout TStg VESD-HBM VESD-MM Rating Supply Voltage, VDD (over voltage) DC Output Voltage DC Output Current, per Pin Storage Temperature Range, TS ESD Sensitivity (Human Body Model according to CDF-AEC-Q100) ESD Sensitivity (Machine Model according to CDF-AEC-Q100) Value -0.3 to 7 -0.3 to Vdd+0.3V 20 -40 to 125 4 200 Unit V V mA C kV V For proper operation Vout should be constrained to the range VssVoutVdd. Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximumrated conditions for extended periods may affect device reliability. 3901075303xx Rev. xxx Page 4 of 12 Data Sheet July/07 MLX75303 Optical Schmitt Trigger 5 MLX75303 Specifications All voltages are referenced to Vss. Symbol Vdd Idd Parameter Supply Voltage Static Power Supply Current At Vdd=5.5V, unloaded output Vdd=5V, =880nm, Tamb=25C Vdd=5V, =880nm Coefficient of Vdd=5V, =880nm Vdd=5V, =880nm, Tamb=25C Tamb=25C Vdd=5.5V, Ee>Eon, IOL=16mA Vdd=5.5V, Ee=0 Vdd=5.5V, Ee=0 RL=1kOhm, CL=2nF, = 880nm -20% 60 -0.44 25 x Eeon_max 500 0 0 0 0.36 (a), Ee=Eeon_max (a), Ee=Eeon_max (a), Ee=15xEeon_max (a) (a) 0 0 0 20 300 20 20 1000 0.4 Vdd+0.3 1 24 110 (TBD) Conditions Min 3.0 Typ Max 5.5 2.5 Units V mA Test V V 1 Eeon Eeoff/Eeon TC Eemax 0.3 VOL VOH IOH tsetup Spd tf ton toff tp tG TA Irradiance for Threshold "on" Hysteresis Temperature threshold "on" +20% 80 W/cm % %/K W/cm nm V V A s mm ns s s s s C 2 2 V V X Absolute Maximum Irradiance Spectral Bandwidth Output voltage low Output voltage high High level output current Electrical setup-time Area of photodiode Fall time Turn-on time Turn-off time Light pulse duration Light pulse rejection Operating Temperature Range 2 X X V X V V D X V V V X V 10 10 2 -40 125 (a) Vdd=5V, RL=1kOhm, CL=2nF, = 880nm (LED type SFH421) 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 3901075303xx Rev. xxx Page 5 of 12 Data Sheet July/07 MLX75303 Optical Schmitt Trigger 6 Timing diagrams Definition of the switch-on and switch-off thresholds Definition of the switch-on and switch-off delays Definition of the light pulse duration Definition of the power-on delay 3901075303xx Rev. xxx Page 6 of 12 Data Sheet July/07 MLX75303 Optical Schmitt Trigger 7 Test diagrams Measurement and trimming of Eeon, Eeoff and hysteresis: Functional check of Eeon and Eeoff thresholds and timing measurements (Go-NoGo tests): 3901075303xx Rev. xxx Page 7 of 12 Data Sheet July/07 MLX75303 Optical Schmitt Trigger 8 Applications Information A typical connection diagram is shown in the figure below. A load resistor RL is needed to get a voltage level out. 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. Decoupling capacitors between Vdd and Vss (1uF in parallel with 100nF) are highly recommended in all configurations. Recommendation: every change in the application should be agreed by both parties. 3901075303xx Rev. xxx Page 8 of 12 Data Sheet July/07 MLX75303 Optical Schmitt Trigger 9 SO8 Open Cavity Package Information SO8 open cavity package, MSL3, 260C soldering profile (target). Lead free component. 3901075303xx Rev. xxx Page 9 of 12 Data Sheet July/07 MLX75303 Optical Schmitt Trigger 10 DFN3x3 Open Cavity Package Information DFN3x3 open cavity package, MSL3, 260C soldering profile (target). 3901075303xx Rev. xxx Page 10 of 12 Data Sheet July/07 MLX75303 Optical Schmitt Trigger 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. 3901075303xx Rev. xxx Page 11 of 12 Data Sheet July/07 MLX75303 Optical Schmitt Trigger 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. (c) 2005 Melexis NV. All rights reserved. For additional information contact Melexis Direct: Europe, Africa, Asia: Phone: +32 1367 0495 E-mail: sales_europe@melexis.com America: Phone: +1 603 223 2362 E-mail: sales_usa@melexis.com ISO/TS 16949 and ISO14001 Certified 3901075303xx Rev. xxx Page 12 of 12 Data Sheet July/07 |
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