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ATS665lsg data sheet 27627.134 true zero-speed, hall-effect adaptive gear-tooth sensor the ATS665lsg is an optimized hall ic/magnet configuration packaged as a molded module that provides a user-friendly solution for digital gear-tooth-sensing applications. this digital differential hall- effect sensor is the choice when repeatability and timing accuracy count. the module incorporates patented self-calibration circuitry that nulls out the effects of installation air gap, ambient temperature, and magnet offsets to provide superior timing accuracy with symmetrical targets over large operating air gaps ?typical of targets used in speed- sensing automotive transmission applications. the self-calibration at power up keeps the performance optimized over the life of the sensor. the ATS665lsg has an open-collector output for direct digital inter- facing with no further signal processing required. the integrated circuit incorporates a dual-element hall-effect sensor and signal processing that switches in response to differential magnetic signals created by a ferrous target. the circuitry contains a sophisticated digital circuit to reduce the detrimental effects of magnet and system offsets and to achieve true zero-speed operation. digital processing of the analog signal provides zero-speed performance independent of air gap and also dynamic adaptation of device perfor- mance to the typical operating conditions found in automotive applica- tions (reduced vibration sensitivity). high-resolution, peak-detecting dacs are used to set the switching thresholds; hysteresis reduces the negative effects of any anomalies in the magnetic signal associated with the target. features & benefits true zero-speed operation air-gap independent switch points high vibration immunity precise duty cycle over temperature large operating air gap range defined power-on state wide operating voltage range digital output representing target profile single-chip sensing ic for high reliability small mechanical size (8 mm diameter x 5.5 mm length) optimized hall ic magnetic circuit short power up time agc and reference adjust circuit undervoltage lockout always order by complete part number: ATS665lsg . absolute maximum ratings at t a = 25 c supply voltage, v cc ........................... 26.5 v reverse supply voltage, v rcc ............ -18 v output off voltage, v out ................. 26.5 v reverse output voltage, v rout .......... -18 v continuous output current, i out ....... 20 ma reverse output current, i rout ......... -50 ma package power dissipation, p d .......................................... see graph operating temperature range, t a ............................. -4 0 c to +16 0 c junction temperature, (continuous), t j .......................... +170 c (100 hr), t jm ............................... +185 c storage temperature, t s ................... +170 c preliminary information (subject to change without notice) j uly 2, 20 03 dwg. ah-013 1 2 3 4 pin 1 = supply pin 2 = output pin 3 = test pin 4 = ground
115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor 2 copyright ?2002 allegro microsystems, inc. functional block diagram supply 1 reg uvlo power-on logic + ref test 3 e2 magnet e1 x x + dwg. fh-019-4 + + positive peak digital proc. negative peak digital proc. 32 v threshold comparators ground output <1 ? current limit 2 4 control reference generator 600 400 200 40 80 120 160 0 ambient temperature in ? allowable package power dissipation in mw 60 100 140 180 20 800 1000 r ja = 126 c/w continuous 100 hours max. r ja is measured on typical two- sided pcb with minimal copper ground area. r ja can be reduced to 95 c/w with 1 square inch copper ground area at pin 4 or to 86 c/w with 3.5 square inch copper ground area at pin 4.
ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor www.allegromicro.com 3 electrical characteristics over operating voltage and temperature ranges (unless otherwise noted). limits characteristic symbol test conditions min. typ. max. units supply voltage v cc operating, t j < 170 c 3.3 12 24 v power-on state pos v cc = 0 5 v high* high* high* C undervoltage lockout v cc(uv) v cc = 0 5 v C C 3.3 v low output voltage v out(sat) i out = 20 ma C 200 400 mv output current limit i outm v out = 12 v 254570 ma output leakagecurrent i off v out = 24 v C C 10 a supply current i cc output off C 8.2 15 ma output on C 8.2 15 ma reverse supply current i rcc v cc = -18 v C C -10 ma output rise time i r r l = 500 ? , c l = 10 pf C 1.0 2.0 s output fall time i f r l = 500 ? , c l = 10 pf C 0.6 2.0 s power-on time t on reference gear, <100 rpm C C 200 s zener voltage v z i zt = tbd 26.5 32 38 v * output transistor is off (high logic level).
115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor 4 operation with reference gear over operating voltage and temperature ranges. limits characteristic symbol test conditions min. typ. max. units air-gap range ag operational 0.5 C 2.5 mm calibration cycle n cal output edges before which 3 3 3 teeth calibration is completed recalibration (update) n rcal operating continuous teeth minimum speed v min C0Crpm maximum speed v max 12000* C C rpm bandwidth f max -3 db 20* C C khz operate point b op% % of peak-to-peak signal, output high to low? C70C % release point b rp% % of peak-to-peak signal, output low to high? C30C % duty cycle range dc 1000 rpm, 0.5 mm < ag < 2.5 mm 43 48 53 % operating signal C bmax - bmin 60 C C g * operation at a frequency (teeth per second) greater than the specified minimum value is possible but not warranteed. ? see switching references figure, page 11. 60-0 reference target/gear dimensions (low carbon steel) limits characteristic symbol description min. typ. max. units diameter d o C 120 C mm tooth width t C 3.0 C mm valley width (p c C t) C 3.0 C mm valley depth h t C 3.0 C mm thickness f C 6.0 C mm
ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor www.allegromicro.com 5 typical characteristics 10 15 20 25 supply voltage in volts 0 dwg. gh-041-5 5 supply current in ma 0 2.0 4.0 6.0 8.0 10 12 30 t a = 150 c t a = +85 c t a = +25 c t a = 0 c t a = -40 c b > b op 10 15 20 25 supply voltage in volts 0 dwg. gh-041-6 5 supply current in ma 0 2.0 4.0 6.0 8.0 10 12 30 t a = 150 c t a = +85 c t a = +25 c t a = 0 c t a = -40 c b< b rp 0255075 100 300 0 ambient temperature in c 200 100 -50 dwg. gh-040-6 saturation voltage in mv 150 -25 125 i out = 20 ma v cc = 4.25 26 v 50 150 250
115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor 6 typical characteristics (contd) 0 50 100 125 ambient temperature in c -50 dwg. gh-053-5 -25 supply current in ma 0 2.0 4.0 6.0 8.0 10 12 50 v cc = 12 v b > b op 25 75 0 50 100 125 ambient temperature in c -50 dwg. gh-053-6 -25 supply current in ma 0 2.0 4.0 6.0 8.0 10 12 50 v cc = 12 v b < b rp 25 75 0 50 100 125 ambient temperature in c -50 dwg. gh-073 -25 duty cycle in per cent 44 46 48 50 52 150 25 75 ag = 0.5 mm ag = 0.8 mm ag = 1.5 mm ag = 2.35 mm ag = 2.5 mm 100 rpm 0 50 100 125 ambient temperature in c -50 dwg. gh-073-1 -25 duty cycle in per cent 44 46 48 50 52 150 25 75 ag = 0.5 mm ag = 0.8 mm ag = 1.5 mm ag = 2.35 mm ag = 2.5 mm 1000 rpm
ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor www.allegromicro.com 7 dwg. ah-014 typical characteristics (contd) 1.0 2.0 3.0 air gap in mm 0 dwg. gh-074 0.5 duty cycle in per cent 44 46 48 50 52 1.5 2.5 t a = -40 c t a = 0 c t a = 25 c t a = 85 c t a = 150 c 100 rpm 1.0 2.0 3.0 air gap in mm 0 dwg. gh-074-1 0.5 duty cycle in per cent 44 46 48 50 52 1.5 2.5 t a = -40 c t a = 0 c t a = 25 c t a = 85 c t a = 150 c 1000 rpm typical 60-0 target see page 4 for dimensions.
115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor 8 device description module description. the ATS665lsg true zero-speed gear-tooth sensor system is a hall ic + magnet configura- tion that is fully optimized to provide digital detection of gear-tooth* edges in a small package size. the sensor is integraly molded into a plastic body that has been opti- mized for size, ease of assembly, and manufacturability. high operating-temperature materials are used in all aspects of construction. sensing technology. the gear-tooth sensor contains a single-chip differential hall-effect sensor ic, a samarium- cobalt magnet, and a flat ferrous pole piece. the hall ic consists of two hall elements spaced 2.2 mm apart, located so as to measure the magnetic gradient created by the passing of a ferrous object (a gear tooth). the two ele- ments measure the field gradient and convert it to an analog voltage that is then processed to provide a digital output signal. the two hall transducers and the electronics are inte- grated on a single silicon substrate using a proprietary bicmos process. operation. after correct power is applied to the compo- nent, it is capable of providing digital information that is representative of the profile of a rotating gear. no addi- tional optimization is needed and minimal processing circuitry is required. this ease of use should reduce design time and incremental assembly costs for most applications. solution advantages. the ATS665lsg true zero- speed detecting gear-tooth sensor uses a differential hall- element configuration. this configuration is superior in most applications to a classical single-element gts. the single-element configuration commonly used requires the detection of an extremely small signal (often <100 g) that is superimposed on an extremely large back biased field, often 1500 g to 3500 g. for most gear configurations, the back-biased field values change due to concentration effects, resulting in a varying baseline with air gap, with eccentricities, and with vibration. the differential con- * in application, the terms ?ear?and ?arget?are often inter- changed. however, ?ear?is preferred when motion is trans- ferred. dwg. mh-016 1 2 3 4 south permanent magnet north lead frame pole piece hall-effect ic dw g . wh-019-1 differential magnetic profile sensor output mechanical profile internal construction digital output representative of target profile
ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor www.allegromicro.com 9 device description continued figuration eliminates the effects of the back-biased field through subtraction and, hence, avoids the issues presented by the single hall element. the signal-processing circuitry also greatly enhances the functionality of this device. other advantages are temperature drift? ?changes in temperature do not greatly affect this device due to the stable amplifier design and the offset rejection circuitry, timing accuracy/duty cycle variation due to air gap? ?the accuracy variation caused by air-gap changes is minimized by the self-calibration circuitry. a two-to-three times improvement can be seen over conventional zero- crossing detectors, dual edge detection ?because this device references the positive and negative peaks of the signal, dual edge detection is guaranteed, immunity to magnetic overshoot ?the air-gap independent hysteresis minimizes the impact of overshoot on the switching of device output, response to surface defects in the gear ?the gain- adjust circuitry reduces the effect of minor gear anomalies that would normally causes false switching, immunity to vibration and backlash ?the gain-adjust circuitry keeps the hysteresis of the device roughly propor- tional to the peak-to-peak signal. this allows the device to have good immunity to vibration even when operating at close air gaps, immunity to gear run out ?the differential-sensor configuration eliminates the base-line variations caused by gear run out, and use with stamped-gear configurations ?the high- sensitivity switch points allow the use of stamped gears. the shallow mechanical slopes created by the stamping process create an acceptable magnetic gradient down to zero speed. the surface defects caused by stamping the gear are ignored through the use of gain control circuitry. operation versus air-gap/tooth geometry. operat- ing specifications are impacted by tooth size, valley size and depth, gear material, and gear thickness. in general, the following guidelines should be followed to achieve greater than 2 mm air gap from the face of unit: tooth width (t) > 2 mm; valley width (p c - t) > 2 mm; valley depth (h t ) > 2 mm; gear thickness (f) > 3 mm; and the gear material must be low-carbon steel. signal duty cycle. for regular tooth geometry, precise duty cycle is maintained over the operating air-gap and temperature range due to an extremely good symmetry in the magnetic switch points of the device. power-on state operation. the device is guaranteed to power on (power up) in the off state (high output voltage) regardless of the presence or absence of a gear tooth. the first edge seen by the sensor will be missed if the switching caused by that edge reinforces the off state. therefore, the first edge that can be guaranteed to cause an output transition is the second detected edge. this device has accurate first falling edge detection. ? target must be rotating for proper update algorithim opera- tion. dw g . wh-019-2 differential magnetic profile sensor output mechanical profile startup at rising edge startup before rising edge startup after rising edge startup at falling edge first-edge detection
115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor 10 device description continued undervoltage lockout. if the supply voltage falls below the minimum operating voltage (v cc(uv) ), the device output will turn off (high output voltage) and stay off irrespective of the state of the magnetic field. this prevents false signals caused by undervoltage conditions from propagating through to the output of the sensor. output. the output of the sensor is a short-circuit- protected open-collector stage capable of sinking 20 ma. an external pull-up (resistor) to a supply voltage of not more than 26.5 v must be supplied. output polarity. the output of the device will switch from low to high (on to off) as the leading edge of the target passes the sensor face in the direction indicated (pin 1 to pin 4), which means that the output voltage will be high when the unit is facing a tooth. dwg. ah-013-1 1 2 3 4 if rotation is in the opposite direction (pin 4 to pin 1), the output of the device will switch from high to low as the leading edge of the target passes the sensor, which means that the output voltage will be low when the unit is facing a tooth. power supply protection. the device contains an on- chip regulator and can operate over a wide supply voltage range. for devices that need to operate from an unregu- lated power supply, transient protection should be added externally. for applications using a regulated line, emi/ rfi protection is still required. incorrect protection can result in unexplained pulses on the output line, providing inaccurate sensing information to the user. internal electronics. the ATS665lsg is a self- calibrating sensor that contains two hall-effect elements, a temperature-compensated amplifier, and offset cancella- tion circuitry. also contained in the device is a voltage regulator to provide supply rejection over the operating voltage range. the hall transducers and the electronics are integrated on the same silicon substrate using a proprietary bicmos process. changes in temperature do not greatly affect this device due to the stable amplifier design and the offset rejection circuitry.
ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor www.allegromicro.com 11 device description continued dw g . wh-019 100% 70% 30% 0% release point is 30% of previous valley to peak operate point is 70% of previous peak to valley electrical signal sensor output magnetic signal electrical signal after gain control -1000 relative target position dwg. gh-061-4 differential magnetic field in gauss -800 -600 -400 -200 0 200 400 600 800 1000 ag = 2.00 mm 0.25 mm intervals ag = 0.25 mm -1000 relative target position dwg. gh-061-5 electrical signal in mv -800 -600 -400 -200 0 200 400 600 800 1000 ag = 2.00 mm ag = 0.25 mm switching references automatic gain control. the self-calibrating circuitry is unique. after power up, the device measures the peak- to-peak magnetic signal and adjusts the gain using an on- chip d-to-a converter to make the internal signal ampli- tude constant independent of the installation air gap of the sensor. this feature allows air-gap-independent opera- tional characteristics. offset adjust and update. in addition to the gain- control circuitry, the device also has provisions to zero out chip, magnet, and installation offsets. this is accom- plished using two d-to-a converters that capture the peak and valley of the signal and use them as a reference for the switching comparator. the switch point for each edge is determined by the previous two edges. because variations are tracked in real time, the sensor has high immunity to target run-out and retains excellent accuracy and function- ality in the presence of both run-out and transient mechani- cal events. this allows the switch points to be precisely controlled independent of air gap or temperature.
115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor 12 sensor C target evaluation recommended target evaluation technique. in order to establish the proper operating specification for a particular sensor ?target system, a systematic evaluation of the magnetic circuit should be performed. the first step is the generation of a magnetic map of the target. by using a special calibrated version of the ATS665lsg (contact factory), a magnetic signature of the sensor-target system is made. a single curve is generated from this map data to describe the peak-to-peak magnetic field as a function of the air gap. knowing the minimum peak-to-peak flux density that guarantees operation of the sensor, one can determine the maximum operational air gap of the sensor- target system. from the target evaluation curve, a mini- mum peak-to-peak signal of 60 g corresponds to a maxi- mum air gap of approximately 2.5 mm. accuracy. while the update algorithm will allow the sensor to adapt to system changes, major changes in air gap can adversely affect switching performance. when characterizing sensor-target performance over a significant air-gap range, be sure to repower the device at each air gap. this ensures that self calibration occurs for each installation condition. -300 target position in degrees dwg. gh-061-6 differential magnetic field in gauss -250 -200 -150 -100 0 100 150 200 250 300 50 -50 0 5 15 20 10 25 30 35 air gap 0.94 mm 1.19 mm 1.44 mm 1.69 mm 1.94 mm 2.19 mm 2.44 mm 2.69 mm 2.94 mm 3.19 mm sensor-target magnetic signature 1.0 2.0 3.5 air gap in mm 0 dwg. gh-075 0.5 peak-to-peak flux density in gauss 0 100 200 300 400 1.5 2.5 500 600 700 3.0 60 g target evaluation
ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor www.allegromicro.com 13 applications information typical application 20 ? r l 0.1 f 100 pf c 2 output supply c 1 r s 3 x x + - vcc 1 24 dwg. eh-008-17 external components. it is strongly recommended that an external bypass capacitor be connected (less than 5 mm from the hall sensor) between the supply and ground of the device to reduce external noise. a series resistor (r s ) in combination with the bypass capacitor prevents external emc pulses from affecting the sensor. the voltage drop across this resistor subtracts from the supply voltage and must be considered. v supply v cc(min) + (i cc x r s ) where v supply is the minimum supply value (including transients), v cc(min) is the specified minimum supply voltage, i cc is the specified maximum supply current and r s is the maximum series-resistor value (including toler- ances). a low operating supply voltage requires a low- value resistor, but noise and other considerations suggest a high-value resistor. therefore, specify the highest value resistor that will still allow meeting the minimum operat- ing supply voltage requirement. this will also help to minimize package power dissipation (especially under overvoltage conditions). if not included as part of the load, the output pullup resistor (r l ) should be chosen to limit the current through the output transistor. do not exceeed the absolute maxi- mum rated output current. internal current limiting is only intended to protect the device from output short circuits. power derating. due to the internal device power dissipation, the junction temperature (t j ) will be higher than the ambient temperature (t a ). to ensure that the absolute maximum junction temperature is not exceeded, the following equations should be applied: t j = t a + (p d x r ja ) where p d is the sum of the supply power i cc x v cc and the output power i out x v out(sat) and r ja is the package thermal resistance. the specified limits for i cc and v out(sat) should be used to ensure a margin of safety. note that if an over-voltage condition occurs, i cc will increase, limited only by the internal zener voltage and the external r s , and the device will likely be thermally stressed. additional applications information on gear-tooth and other hall-effect sensors is also available in the ?all- effect ic applications guide? which can be found in the latest issue of the allegro microsystems electronic data book, ams-702 or application note 27701, or at www.allegromicro.com
115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor 14 criteria for device qualification all allegro sensors are subjected to stringent qualification requirements prior to being released to production. to become qualified, except for the destructive esd tests, no failures are permitted. test method and samples qualification test test conditions test length per lot comments temperature humidity jesd22-a101, 1008 hrs 77 device biased for bias life t a = 85 c, rh = 85% minimum power bias life jesd22-a108, 408 hrs 77 additional hours on agree- t a = 150 c, t j 165 c ment of failure rate (surge operating life) t a = 170 c, t j = 180 c 168 hrs 77 3000 hours on agreement of failure rate autoclave, unbiased jesd22-a102, 96 hrs 77 t a = 121 c, 15 psig high-temperature jesd22-a103, 1000 hrs 77 (bake) storage life t a = 170 c temperature cycle jesd22-a104, 500 cycles 77 30 s transition, 30 min dwell -65 c to +160 c thermal shock -40 c to +150 c 100 cycles 77 1 min transition, 10 min dwell esd, cdf-aec-q100-002 pre/post 3 per test to failure human body model reading test all leads > 4.5 kv* esd, cdf-aec-q100-003 pre/post 3 per test to failure machine model reading test all leads > 200 v early life failure rate cdf-aec-q100-008 24 hrs 800 150 c * with pin 3 tied to pin 4. isolation of pin 3 may result in reduced esd performance (2.5 kv).
ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor www.allegromicro.com 15 transient & tem test circuit #1 oscilloscope 3 x x + - vcc 1 2 4 dw g . eh-0 +12 v 0.1 f 1.0 k? + 12 v performance class at test level pulse no. test i ii iii iv 1 inductive turn off (negative) e C C C 2 inductive turn off (positive) c c e C 3a capacitive/inductive coupling (neg) C C C a 3b capacitive/inductive coupling (pos) C C C a 4 reverse battery C C C a 5 load dump: c e C C 6 ignition coil disconnect c e C C 7 field decay (negative) c e C C transient performance per iso 7637-1 at t a = 23 5 c, test circuit #1 (tested at allegro test facility for engineering reference only) power supply voltage transients, or device output short circuits, may be caused by faulty connectors, crimped wiring harnesses, or service errors. to prevent catastrophic failure, internal protection against overvolt- age, reverse voltage, and output overloads have been incorporated to meet the automotive 12 volt system protection requirements of iso dp7637/1. a series- blocking diode or current-limiting resistor is required in order to survive pulse number six. performance class definitions (for transient performance and emc performance) a all functions of a device perform as designed during and after the exposure. b all functions of a device perform as designed during exposure; however, one or more of them may go beyond the specified limit tolerance. all functions return auto- matically to within normal limits afer exposure is re- moved. memory must remain class a. c one or more functions of the device do not perform as designed during exposure but return automatically to normal operation after exposure is removed. d one or more functions of the device do not perform as designed during exposure and do not return to normal operation until exposure is removed and the device is reset by simple ?perator?action. e one or more functions of the device do not operform as designed during and after the exposure and cannot be returned to proper operation without repairing or replacing the device.
115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor 16 transient test circuit #2 oscilloscope 3 x x + - vcc 1 2 4 dw g . eh - +12 v 0.1 f 1.0 k? + 12 v 100 ? the products described herein are manufactured under one or more of the following u.s. patents: 5,045,920; 5,264,783; 5,442,283; 5,389,889; 5,581,179; 5,517,112; 5,619,137; 5,621,319; 5,650,719; 5,686,894; 5,694,038; 5,729,130; 5,917,320; and other patents pending. allegro microsystems, inc. reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of its products. before placing an order, the user is cautioned to verify that the information being relied upon is current. allegro products are not authorized for use as critical components in life-support appliances, devices, or systems without express written approval. the information included herein is believed to be accurate and reliable. however, allegro microsystems, inc. assumes no responsibil- ity for its use; nor for any infringements of patents or other rights of third parties that may result from its use. performance class at test level pulse no. test i ii iii iv 1 inductive turn off (negative) cccc 2 inductive turn off (positive) C C C c 3a capacitive/inductive coupling (neg) C C C a 3b capacitive/inductive coupling (pos) C C C a 4 reverse battery C C C a 5 load dump: a c e C 6 ignition coil disconnect cccc 7 field decay (negative) cccc transient performance per iso 7637-1 at t a = 23 5 c, test circuit #2 (tested at allegro test facility for engineering reference only)
ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor www.allegromicro.com 17 component material function units element spacing 2.2 mm sensor face thermoset epoxy maximum temperature 170 c* sensor housing thermoset epoxy maximum temperature 170 c* flame class rating ul94v-0 leads copper lead finish 90/10 tin/lead solder plate ? lead pull 13 n *temperature excursions to 260 c for 2 minutes or less are permitted (based on delamination studies). ?all industry-accepted soldering techniques are permitted for these modules provided the indicated maximum tempera- ture is not exceeded. mechanical information frequency performance class at test level band (mhz) i ii iii iv f1 (0.01 to 10) C C C a f2 (0 to 30) C C C a f3 (30 to 80) C C C a f4 (80 to 200) C C C a transferse electro-magnetic (tem) radiation performance per iso 11452-3 test severity level i = 50 v/m ii = 100 v/m iii = 150 v/m iv = 200 v/m electromagnetic compatibility (emc) performance at t a = 23 5 c, test circuit #1 (tested at allegro test facility for engineering reference only)
115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 ATS665lsg true zero-speed, hall-effect adaptive gear-tooth sensor 18 tolerances, unless otherwise specified: 1 place 0.1 mm, 2 places 0.05 mm. dimensions in millimeters a 8.0 ? 2.9 1.7 4.7 1.50 ? 5.5 1.6 24.65 0.1 5.5 0.7 ref 0.38 1.7 0.2 1.27 0.1 (3) dw g . mh-027-1 mm 0.7 1.5 1.5 0.5 4.4 0.6 (4) 0.4 (4) +0.15 -0.05 15.3 5.8 allegro

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