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 260˚C (target), MSL3 Ideal for automotive applications Ordering Information Part No. MLX75303 MLX75303 3901075303xx Rev. xxx Temperature Code Package Code K XD -40°C to 125°C SO8 Open Cavity K XE -40°C to 125°C DFN3x3 Open Cavity Page 1 of 12 Option Code Delivery Form Tape On Reel Tape On Reel 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 Functional Diagram....................................................................................................2 2 General Description ...................................................................................................2 3 Pin Definitions and Descriptions ..............................................................................4 4 Absolute Maximum Ratings ......................................................................................4 5 MLX75303 Specifications ..........................................................................................5 6 Timing diagrams ........................................................................................................6 7 Test diagrams.............................................................................................................7 8 Applications Information ...........................................................................................8 9 SO8 Open Cavity Package Information....................................................................9 10 DFN3x3 Open Cavity Package Information............................................................10 11 Standard information regarding manufacturability of Melexis products with different soldering processes .................................................................................11 12 ESD Precautions ......................................................................................................11 13 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 Pin Name Description Type Vss Ground connection Ground 2 OUT Active low (= light on) output Open drain output 3 Vdd Power supply Supply 4 N.C. Not connected Floating 5 N.C. Not connected Floating 6 N.C. Not connected Floating 7 N.C. Not connected Floating 8 N.C. Not connected Floating 4 Absolute Maximum Ratings Valid for all MLX75303 versions. All voltages are referenced to Vss. Symbol Rating 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) Value Unit -0.3 to 7 V -0.3 to Vdd+0.3V V ±20 mA -40 to 125 °C 4 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. 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 Parameter Conditions Typ Max Units Test 5.5 V V 2.5 mA V +20% µW/cm 80 % V -0.44 %/K X 25 x Eeon_max µW/cm 3.0 Supply Voltage Idd Static Power Supply Current At Vdd=5.5V, unloaded output Eeon Irradiance for Threshold “on” Vdd=5V, λ=880nm, Tamb=25˚C Eeoff/Eeon Hysteresis Temperature threshold “on” TC Min Vdd=5V, λ=880nm Coefficient of Eemax Absolute Maximum Irradiance λ0.3 Spectral Bandwidth VOL Output voltage low VOH IOH Output voltage high High level output current tsetup Electrical setup-time Spd Area of photodiode tf ton toff tp tG Fall time Turn-on time Turn-off time Light pulse duration Light pulse rejection TA Operating Temperature Range -20% 60 Vdd=5V, λ=880nm Vdd=5V, λ=880nm, Tamb=25˚C Tamb=25˚C Vdd=5.5V, Ee>Eon, IOL=16mA Vdd=5.5V, Ee=0 Vdd=5.5V, Ee=0 RL=1kOhm, CL=2nF, λ= 880nm 110 (TBD) 2 V X 500 1000 nm X 0 0.4 V V 0 Vdd+0.3 1 V µA X V 0 24 µs V mm 0.36 (a), Ee=Eeon_max (a), Ee=Eeon_max (a), Ee=15xEeon_max (a) (a) 2 0 0 0 20 10 10 D 300 20 20 ns µs µs µs µs X V V V X 125 °C V 2 -40 2 (a) Vdd=5V, RL=1kOhm, CL=2nF, λ= 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 1 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, 260˚C 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, 260˚C 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. © 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 3901075303xx Rev. xxx Page 12 of 12 Data Sheet July/07