MLX92231-AAA-xxx 3-Wire Hall Effect Switch Features and Benefits Application Examples Wide operating voltage range: from 2.7V to 24V Accurate switching thresholds Reverse Supply Voltage Protection Output Current Limit with Auto-Shutoff Under-Voltage Lockout Protection Thermal Protection Traceability with integrated unique ID High ESD rating / Excellent EMC performance Thin SOT23 3L Green Compliant package Automotive, Consumer and Industrial Solid-state switch Brake sensor Clutch sensor Sunroof/Tailgate opener Steering Column Lock Open / Close detection Ordering Information Part No. MLX92231LSE-AAA-xxx-RE MLX92231LUA-AAA-xxx-BU Temperature Code L (-40°C to 150°C) L (-40°C to 150°C) Package Code SE (TSOT-3L) UA (TO-92) 1 Functional Diagram In addition to that an ID has been integrated on the IC to have a complete traceability throughout the process flow. VDD Voltage Regulator with Reverse Polarity Protection Temperature Compensation Switched Hall Plate UnderVoltage Lockout Bop/Brp reference Thermal Protection Open-Drain Output CDS Amplifier Control OUT The included voltage regulator operates from 2.7 to 24V, hence covering a wide range of applications. With the built-in reverse voltage protection, a serial resistor or diode on the supply line is not required so that even remote sensors can be specified for low voltage operation down to 2.7V while being reverse voltage tolerant. In the event of a drop below the minimum supply voltage during operation, the under-voltage lock-out protection will automatically freeze the device, preventing the electrical perturbation to affect the magnetic measurement circuitry. The output state is therefore only updated based on a proper and accurate magnetic measurement result. Current Limit & Auto-Shutoff GND 2 General Description The Melexis MLX92231 is a Hall-effect unipolar switch designed in mixed signal CMOS technology. The device integrates a voltage regulator, Hall sensor with advanced offset cancellation system, automotive qualified EEPROM and an open-drain output driver, all in a single package. Based on the existing robust 922xx platform, the magnetic core has been equipped with a non-volatile memory that is used to accurately trim the switching thresholds and define the needed output magnetic characteristics (TC, Bop, Brp, Output pole functionality). 390109223101 – REV 2 Comment RE (Reel) BU (Bulk) The open drain output is fully protected against shortcircuit with a built-in current limit. An additional automatic output shut-off is activated in case of a prolonged short-circuit condition. A self-check is then periodically performed to switch back to normal operation if the short-circuit condition is released. The on-chip thermal protection also switches off the output if the junction temperature increases above an abnormally high threshold. It will automatically recover once the temperature decreases below a safe value. Page 1 of 12 Sept/14 MLX92231-AAA-xxx 3-Wire Hall Effect Switch Table of Contents 1 Functional Diagram .....................................................................................................................1 2 General Description ....................................................................................................................1 3 Absolute Maximum Ratings .......................................................................................................3 4 General Electrical Specifications ............................................................................................... 4 5 Magnetic Specifications .............................................................................................................5 5.1 MLX92231LSE-AAA-004 ..................................................................................................................................... 5 5.2 MLX92231LSE-AAA-007 ..................................................................................................................................... 5 5.3 MLX92231LSE-AAA-009 ..................................................................................................................................... 5 5.4 MLX92231LSE-AAA-010 ..................................................................................................................................... 5 6 Magnetic Behaviour ....................................................................................................................6 6.1 Latch sensor ....................................................................................................................................................... 6 7 Detailed General Description .....................................................................................................7 8 Latching Characteristic ..............................................................................................................7 9 Application Information ..............................................................................................................8 9.1 Typical Three-Wire Application Circuit .................................................................................................................. 8 9.2 Automotive and Harsh, Noisy Environments Three-Wire Circuit ............................................................................ 8 10 Standard information regarding manufacturability of Melexis products with different soldering processes .......................................................................................................................................9 11 ESD Precautions .......................................................................................................................9 12 Package Information ...............................................................................................................10 12.1 SE (TSOT-3L) Package Information ................................................................................................................. 10 12.2 UA (TO92-3L) Package Information ................................................................................................................ 11 13 Disclaimer ................................................................................................................................ 12 390109223101 – REV 2 Page 2 of 12 Sept/14 MLX92231-AAA-xxx 3-Wire Hall Effect Switch 3 Absolute Maximum Ratings Parameter Supply Voltage (1, 2) Supply Voltage (Load Dump) Supply Current (1, 2, 3) Supply Current (1, 4, 3) Reverse Supply Voltage (1, 2) Reverse Supply Voltage (4) (1, 4) Units VDD +27V V VDD +32V V IDD +20 mA IDD +50 mA VDDREV -24 V VDDREV -30 V VDDREV -35 V IDDREV -20 mA (1 4 5) IDDREV -50 mA (1 2) , VOUT +27 V (1 2 5) IOUT +20 mA IOUT +75 mA VOUTREV -0.5 V IOUTREV -100 mA TJ +165 C Ts -55 to +165 C - 4000 V - 500 V - 1000 V B Unlimited mT Reverse Supply Current , , Output Voltage Value (1, 2, 5) Reverse Supply Voltage (Load Dump) Reverse Supply Current (11) Symbol Output Current , , (1 4 6) Output Current , , Reverse Output Voltage (1) (1 2) Reverse Output Current , Maximum Junction Temperature (7) Storage Temperature Range ESD Sensitivity – HBM ESD Sensitivity – MM (9) ESD Sensitivity – CDM Magnetic Flux Density (8) (10) 11 Table 1: Absolute maximum ratings Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 1 The maximum junction temperature should not be exceeded For maximum 1 hour Including current through protection device 4 For maximum 500ms 5 Through protection device 6 For VOUT ≤27V. 7 For 1000 hours. 8 Human Model according AEC-Q100-002 standard 9 Machine Model according AEC-Q100-003 standard 10 Charged Device Model according AEC-Q100-011 standard 11 For maximum 100ms 2 3 390109223101 – REV 2 Page 3 of 12 Sept/14 MLX92231-AAA-xxx 3-Wire Hall Effect Switch 4 General Electrical Specifications DC Operating Parameters VDD = 2.7V to 24V, TA = -40°C to 150°C (unless otherwise specified) Parameter Supply Voltage Supply Current Reverse supply current Output Saturation Voltage Output Leakage Output Rise Time (1, 6) (RPU dependent) Output Fall Time (1, 6) (On-chip controlled ) Power-On Time (3,4,7) Power-On Output State Output Current Limit Output ON Time under Current Limit conditions(8) Output OFF Time under Current Limit conditions(8) Chopping Frequency Refresh Period Output Jitter (p-p) (1) Symbol VDD IDD IDDREV VDSON IOFF Test Conditions Operating tON ICL VDD = -16V VDD = 3.5 to 24V, IOUT = 20mA VOUT = 12V, VDD = 12V RPU = 1kΩ, VDD = 12V, VPU = 5V CLOAD = 50pF to GND RPU = 1kΩ, VDD = 12V, VPU = 5V CLOAD = 50pF to GND VDD = 5V, dVDD/dt > 2V/us t < tON VDD=3.5 to 24V, VOUT = 12V tCLON VPU = 12V, RPU = 100Ω tCLOFF VPU = 12V, RPU = 100Ω tR tF fCHOP tPER Over 1000 successive switching events @1kHz square wave magnetic field, B > ±(BOPMAX +20mT) B > ±3(BOPMAX +1mT), square wave magnetic field tJITTER Maximum Switching fSW Frequency (1, 5) Under-voltage Lockout VUVL Threshold Under-voltage Lockout tUVL Reaction time (1) Thermal Protection Threshold TPROT Thermal Protection Release TREL Table 2: General specifications Junction temperature Junction temperature Min 2.7 1.5 Typ(2) 3.0 0.3 Units V mA mA V µA 0.1 0.3 1 µs 0.1 0.3 1 µs - 70 25 40 High (VPU) 40 µs mA 150 240 µs 3.5 ms 70 - 340 6 - kHz µs - ±4 - µs 30 50 - kHz - - 2.7 V - 1 - µs - 190 180 - °C °C 1 Guaranteed by design and verified by characterization, not production tested 2 Typical values are defined at T = +25ºC and V 3 The Power-On Time represents the time from reaching V 4 Power-On Slew Rate is not critical for the proper device start-up. 5 Maximum switching frequency corresponds to the maximum frequency of the applied magnetic field which is detected without loss of pulses 6 R 7 B>B 8 If the Output is in Current Limitation longer than t A Max 24 4.5 1 0.5 10 = 12V DD = 2.7V to the first refresh of the output DD and V PU are respectively the external pull-up resistor and pull-up power supply PU +1mT for direct output sensors or B < B opmax after t time interval -1mT for inverted output sensors. rpmin the Output is switched off in high-impedance state. The Output returns back in active state at next reaching of B CLON or OP CLOFF 390109223101 – REV 2 Page 4 of 12 Sept/14 MLX92231-AAA-xxx 3-Wire Hall Effect Switch 5 Magnetic Specifications 5.1 MLX92231LSE-AAA-004 DC Operating Parameters VDD = 3.5V to 24V, TJ = -40°C to 165°C Test Condition Operating Point BOP (mT) Min (10) Release Point BRP (mT) Typ Max Min (10) TC (ppm/oC) Typ Max TJ = -40°C -8.4 -6 -3.6 -6.1 -3.6 -1.5 TJ = 25°C -7.1 -5.5 -3.9 -5.3 -3.5 -2 TJ = 150°C -7.1 -4.8 -2 -6.7 -3.5 -1.3 Output behaviour (10) Typ Active Pole Out = Low (VDSON) -1100 Direct North pole TC (ppm/oC) Output behaviour Active Pole 5.2 MLX92231LSE-AAA-007 DC Operating Parameters VDD = 3.5V to 24V, TJ = -40°C to 165°C Test Condition Operating Point BOP (mT) Release Point BRP (mT) Min Typ(10) Max Min Typ(10) Max TJ = -40°C 20 26 33 14 20 25 TJ = 25°C 20 26 33 14 20 25 TJ = 150°C 20 26 33 14 20 25 Typ(10) Out = Low (VDSON) 0 Direct South pole TC o (ppm/ C) Output behaviour Active Pole 5.3 MLX92231LSE-AAA-009 DC Operating Parameters VDD = 3.5V to 24V, TJ = -40°C to 165°C Test Condition Operating Point BOP (mT) Min (10) Typ Release Point BRP (mT) (10) Max Min Typ Max TJ = -40°C 2 3.5 5 1.4 2.5 3.3 TJ = 25°C 2.5 3.5 4.5 1.8 2.5 3.1 TJ = 150°C 2 3.5 5 1.4 2.5 3.3 (10) Typ Out = Low (VDSON) 0 Direct South pole TC (ppm/oC) Output behaviour Active Pole 5.4 MLX92231LSE-AAA-010 DC Operating Parameters VDD = 3.5V to 24V, TJ = -40°C to 165°C Test Condition Operating Point BOP (mT) Release Point BRP (mT) Min Typ(10) Max Min Typ(10) Max TJ = -40°C 8.7 10.7 13.4 6.8 9.0 11.5 TJ = 25°C 8.3 10 11.8 6.8 8.5 10.1 TJ = 150°C 6.1 8.6 11.4 4.9 7.3 9.8 390109223101 – REV 2 Page 5 of 12 Typ(10) -1100 Out = Low (VDSON) Direct South pole Sept/14 MLX92231-AAA-xxx 3-Wire Hall Effect Switch 6 Magnetic Behaviour Operation Point BOP – magnetic threshold for activation of the device output, turning in ON (low) state. Release Point BRP – magnetic threshold for release of the device output, turning in OFF (high) state). Hysteresis BHYS – magnetic hysteresis, BHYS = BOP - BRP 6.1 Latch sensor Parameter Option 1 Option 2 Pole Active South North Active pole Remark Fig.1 Fig.2 Output level Output level VOUT = VPULL-UP VOUT = VPULL-UP VOUT switches to Low VOUT switches to High BRP 0mT BOP VOUT = VOL Flux density BRP Fig.1 –South Pole Active 390109223101 – REV 2 VOUT switches to High VOUT switches to Low VOUT = VOL 0mT BOP Flux density Fig.2 –North Pole Active Page 6 of 12 Sept/14 MLX92231-AAA-xxx 3-Wire Hall Effect Switch 7 Detailed General Description Based on mixed signal CMOS technology, Melexis MLX92231 is a Hall-effect device with a pre-programmed magnetic threshold. It allows using generic magnets, weak magnets or larger air gap. The chopper-stabilized amplifier uses switched capacitor techniques to suppress the offset generally observed with Hall sensors and amplifiers. The CMOS technology makes this advanced technique possible and contributes to smaller chip size and lower current consumption than bipolar technology. The small chip size is also an important factor to minimize the effect of physical stress. This combination results in more stable magnetic characteristics and enables faster and more precise design. The operating voltage from 2.7V to 24V, pre-programmed tc and an operating temperature range according to “L” specification make this device suitable for automotive, industrial and consumer low voltage applications. The output signal is open-drain type. Such output allows simple connectivity with TTL or CMOS logic by using a pullup resistor tied between a pull-up voltage and the device output 8 Latching Characteristic The MLX92231-AAA exhibits bipolar magnetic switching characteristics. Output level Typically, the device behaves as a latch with symmetric operating and release switching points (BOP=|BRP|). A bipolar switch is closely operating as a latch as it requires both magnetic poles to turn the output ON and OFF. However , magnetic parameters limits are defined so that the magnetic memory is not guaranteed. In absence of magnetic field, the output could keep or change its state depending on the operating conditions. OUT switches to High OUT switches to Low OUT = High OUT = Low BRP 0mT BOP Flux density Latch characteristic 390109223101 – REV 2 Page 7 of 12 Sept/14 MLX92231-AAA-xxx 3-Wire Hall Effect Switch 9 Application Information 9.1 Typical Three-Wire Application Circuit MLX92231 VDD C1 10nF VCC RPU 10k VOUT OUT GND Notes: 1. For proper operation, a 10nF to 100nF bypass capacitor should be placed as close as possible to the VDD and ground pin. 2. The pull-up resistor RPU value should be chosen in to limit the current through the output pin below the maximum allowed continuous current for the device. 3. A capacitor connected to the output is not needed, because the output slope is generated internally. 9.2 Automotive and Harsh, Noisy Environments Three-Wire Circuit D1 R1 100 Ohms VCC MLX92231 10k VDD Z1 C1 RPU VOUT OUT 10nF GND C2 4.7nF Notes: 1. For proper operation, a 10nF to 100nF bypass capacitor should be placed as close as possible to the VDD and ground pin. 2. The device could tolerate negative voltage down to -24V, so if negative transients over supply line VPEAK< -30V are expected, usage of the diode D1 is recommended. Otherwise only R1 is sufficient. When selecting the resistor R1, three points are important: - the resistor has to limit IDD/IDDREV to 50mA maximum - the resistor has to withstand the power dissipated in both over voltage conditions (VR12/R1) - the resulting device supply voltage VDD has to be higher than VDD min (VDD = VCC – R1.IDD) 3. The device could tolerate positive supply voltage up to +27V (until the maximum power dissipation is not exceeded), so if positive transients over supply line with VPEAK> 32V are expected, usage a zener diode Z1 is recommended. The R1-Z1 network should be sized to limit the voltage over the device below the maximum allowed. 390109223101 – REV 2 Page 8 of 12 Sept/14 MLX92231-AAA-xxx 3-Wire Hall Effect Switch 10 Standard information regarding manufacturability of Melexis products with different soldering processes 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) and THD’s (Through Hole Devices) EN60749-20 Resistance of plastic- encapsulated SMD’s to combined effect of moisture and soldering heat EIA/JEDEC JESD22-B106 and EN60749-15 Resistance to soldering temperature for through-hole mounted devices Iron Soldering THD’s (Through Hole Devices) EN60749-15 Resistance to soldering temperature for through-hole mounted devices Solderability SMD’s (Surface Mount Devices) and THD’s (Through Hole 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.aspx 11 ESD Precautions Electronic semiconductor products are sensitive to Electro Static Discharge (ESD). Always observe Electro Static Discharge control procedures whenever handling semiconductor products. 390109223101 – REV 2 Page 9 of 12 Sept/14 MLX92231-AAA-xxx 3-Wire Hall Effect Switch 12 Package Information 12.1 SE (TSOT-3L) Package Information 2.75 BSC 1.00 MAX 1.60 BSC 0.88 - 0.03 SEATING PLANE +0.02 see note 2 +0.025 0.075 - 0.050 Notes: 2. Outermost plastic extreme width does not include mold flash or protrusions. Mold flash and protrusions shall not exceed 0.15mm per side. 1.90 BSC 0.30 0.45 0.95 BSC see note 3 2.90 BSC 1. All dimensions are in millimeters 3. Outermost plastic extreme length does not include mold flash or protrusions. Mold flash and protrusions shall not exceed 0.25mm per side. 4. The lead width dimension does not include dambar protrusion. Allowable dambar protrusion shall be 0.07mm total in excess of the lead width dimension at maximum material condition. 0.50 BSC 5. Dimension is the length of terminal for soldering to a substrate. TOP VIEW 6. Dimension on SECTION B-B’ applies to the flat section of the lead between 0.08mm and 0.15mm from the lead tip. SIDE VIEW 7. Formed lead shall be planar with respect to one another with 0.076mm at seating plane. 12° REF. TYP. BASE METAL WITH PLATING 0.15 0.20 Marking: 0.10 R. MIN. ~ 31xx 0.10 R. MIN. 0.40+/-0.10 SEATING PLANE +0.05 B 0.35 - 0.10 0.30 0.45 see note 5 0.575 REF. +0.023 4°+/-4 0.127 - 0.007 0.20 B’ SECTION B-B’ see note 6 END VIEW Hall plate location 1.51 0.80 0.28 Notes: 1. All dimensions are in millimeters Package line TOP VIEW SE Pin № Name Type 1 VDD Supply 2 OUT Output 3 GND Ground Table 1: SE Package pinout 390109223101 – REV 2 END VIEW Function Supply Voltage pin Open Drain output pin Ground pin Page 10 of 12 Sept/14 MLX92231-AAA-xxx 3-Wire Hall Effect Switch 12.2 UA (TO92-3L) Package Information 1.50+/-0.10 4.10+/-0.20 +0.10 0.74 - 0.11 +0.15 1.00 - 0.10 0.127 MAX 3.00+/-0.20 2.62 +0.10 - 0.11 7° Typ 7° Typ Notes: 1. All dimensions are in millimeters 2. Package dimension exclusive molding flash. +0.03 3. The end flash shall not exceed 0.127 mm on the top side. +0.11 Marking: 0.46 - 0.03 0.00 0.15 0.55 - 0.10 1st Line : 31WW à WW - calendar week 2nd Line : YLLL: à 14.50+/-0.5 0.38+/-0.03 1.27+/-0.055 Y - last digit of year LLL- Lot nr (3 digits) 0.38+/-0.03 2.54+/-0.055 45° NOM 7° NOM Hall plate location 0.9 0.41 0.45 Notes: 1. All dimensions are in millimeters Marked side 1 2 3 UA Pin № Name Type 1 VDD Supply 2 GND Ground 3 OUT Output Table 2: UA Package pinout 390109223101 – REV 2 Function Supply Voltage pin Ground pin Open Drain output pin Page 11 of 12 Sept/14 MLX92231-AAA-xxx 3-Wire Hall Effect Switch 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. © 2014 Melexis NV. All rights reserved. For the latest version of this document, go to our website at www.melexis.com Or for additional information contact Melexis Direct: Europe, Africa: Americas: Asia: Phone: +32 1367 0495 E-mail: [email protected] Phone: +1 248-306-5400 E-mail: [email protected] Phone: +32 1367 0495 E-mail: [email protected] ISO/TS 16949 and ISO14001 Certified 390109223101 – REV 2 Page 12 of 12 Sept/14