ATS699LSN-FSWPH-T

ATS699LSN Two-Wire, Differential, Vibration-Resistant Sensor IC with Speed and Direction Output FEATURES AND BENEFITS DESCRIPTION • Integrated capacitor reduces requirements for external EMI-protection components • Two-wire, pulse-width output protocol • Highly configurable output protocol options • Speed and direction information of target • Vibration tolerance □□ Small signal lockout for small amplitude vibration □□ Proprietary vibration detection algorithms for large amplitude vibration • Air-gap-independent switch points • Undervoltage lockout • True zero-speed operation • Wide operating voltage range • Single chip sensing IC for high reliability • Robust test-coverage capability with Scan Path and IDDQ measurement • Integrated back-biasing magnet The ATS699LSN is an optimized Hall-effect integrated circuit (IC) and rare-earth pellet combination that provides a userfriendly solution for direction detection and true zero-speed, digital gear-tooth sensing. The small package can be easily assembled and used in conjunction with a wide variety of gear-tooth-sensing applications. PACKAGE: 3-pin SIP (suffix SN) Advanced signal processing and innovative algorithms make the ATS699 an ideal solution for a wide range of speed and direction-sensing needs. The IC employs patented algorithms for the special operational requirements of automotive transmission applications. The speed and direction of the target are communicated through a variable pulse-width output protocol. The ATS699 is particularly adept at handling vibration without sacrificing maximum air gap capability or creating any erroneous “direction” pulses. Even higher angular vibration caused by engine cranking is completely rejected by the device. The advanced vibration detection algorithm will systematically calibrate the sensor IC on the initial teeth of true target rotation and not on vibration, always guaranteeing an accurate signal in running mode. This device is available in a lead (Pb) free 3-pin SIP package with tin-plated leadframe. Not to scale VCC REGULATOR (Analog) REGULATOR (Digital) Hall Amp OFFSET ADJUST AGC FILTER ADC SYNCHRONOUS DIGITAL CONTROLLER Hall Amp OFFSET ADJUST AGC FILTER OUTPUT CONTROL ADC GND Functional Block Diagram ATS699LSN-DS, Rev. 4 MCO-0000148 March 18, 2020 ATS699LSN Two-Wire, Differential, Vibration-Resistant Sensor with Speed and Direction Output SELECTION GUIDE Part Number Packing ATS699LSNTN-FSWPH-T Tape and reel, 13-in. reel, 800 pieces per reel ATS699LSNTN-RSWPH-T Tape and reel, 13-in. reel, 800 pieces per reel * Not all combinations are available. Contact Allegro sales for availability and pricing of custom programming options. Configuration Options ATS699 L SN TN -T Leadframe Plating: Matte tin Vibration Immunity/Direction Change: L – Low vibration immunity with immediate direction-change detection or H – High vibration immunity with non-direction pulses Calibration Pulses: B – Blanked, no output during Calibration or P – Pulses during Calibration Reverse Pulse Width: N – 90 µs (narrow) or W – 180 µs (wide) Number of Pulses: S – Single, one pulse per tooth-valley pair or D – Dual, one pulse per each tooth and each valley Forward Rotation Direction: F – Pin 1 to pin 3 target rotation R – Pin 3 to pin 1 target rotation Instructions (Packing) Package Designation Operating Temperature Range Allegro Identifier and Device Type For example: ATS699LSNTN-RSNPL-T Where a configuration character is unspecified, “x” will be used. For example, -xSNPL applies to both Rotation Direction configuration variants. Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com 2 Two-Wire, Differential, Vibration-Resistant Sensor with Speed and Direction Output ATS699LSN SPECIFICATIONS Absolute Maximum Ratings Characteristic Symbol Supply Voltage VCC Reverse Supply Voltage VRCC Notes Refer to Power Derating section Rating Units 28 V –18 V –40 to 150 °C Operating Ambient Temperature TA Maximum Junction Temperature TJ(max) 165 °C Tstg –60 to 170 °C Storage Temperature Range L Pinout Diagram and Terminal List Terminal List Table 1 2 Number Name 1 VCC Supply voltage 2 VCC Supply voltage 3 GND Ground 3 Package SN, 3-Pin SIP Pinout Diagram Function Internal Discrete Capacitor Ratings Characteristic Nominal Capacitance Symbol CSUPPLY Notes Connected between VCC and GND Rating Units 10000 pF VS 1 VCC CSUPPLY ATS699 3 GND VOUT CL RL Figure 1: Typical Application Circuit Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com 3 ATS699LSN Two-Wire, Differential, Vibration-Resistant Sensor with Speed and Direction Output OPERATING CHARACTERISTICS: valid throughout full operating and temperature ranges; using Reference Target 60-0, unless otherwise noted. Characteristics Symbol Test Conditions Min. Typ. [1] Max. Unit ELECTRICAL CHARACTERISTICS Supply Voltage [2] VCC Operating, TJ < TJ (max) 4 – 24 V VCC(UV) VCC 0 → 5 V or 5 → 0 V – 3.6 3.95 V VCC = VRCC (MAX) – – –10 mA[3] VZSUPPLY ICC = ICC (HIGH) + 3 mA, TA = 25°C 28 – – V ICC(Low) Low-current state (Running mode) 5 – 8 mA ICC(High) High-current state (Running mode) 12 – 16 mA ICC(SU)(Low) Startup current level and Power-On mode 5 – 8.5 mA ICC(High) / ICC(Low) Measured as a ratio of high current to low current 1.9 – – – Undervoltage Lockout Reverse Supply Current Supply Zener Clamp Voltage IRCC Supply Current Supply Current Ratio OUTPUT STAGE Output Rise Time tr Δl/Δt from 10% to 90% ICC level; corresponds to measured output slew rate with CSUPPLY 0 2 4 μs Output Fall Time tr Δl/Δt from 90% to 10% ICC level; corresponds to measured output slew rate with CSUPPLY 0 2 4 μs OUTPUT PULSE CHARACTERISTICS [4] Pulse Width, Forward Rotation tw(FWD) Pulse Width, Reverse Rotation tw(REV) Pulse Width, Non-Direction tw(ND) 38 45 52 μs -xxNxx variant 76 90 104 μs -xxWxx variant 153 180 207 μs -xxNPx and -xxNxH variants 153 180 207 μs -xxWPx and -xxWxH variants 306 360 414 μs – % PERFORMANCE CHARACTERISTICS Operate Point BOP % of peak-to-peak VPROC – 69 Release Point BRP % of peak-to-peak VPROC – 31 – % -xSxxx variant 0 – 12 kHz -xDxxx variant 0 – 6 kHz -xSNxx variant 0 – 7 kHz -xDNxx variant 0 – 3.5 kHz -xSWxx variant 0 – 4 kHz -xDWxx variant 0 – 2 kHz -xSNxx variant 0 – 4 kHz -xDNxx variant 0 – 2 kHz -xSWxx variant 0 – 2.2 kHz -xDWxx variant 0 – 1.1 kHz Operating Frequency, Forward Rotation Operating Frequency, Reverse Rotation Operating Frequency, Non-Direction Pulses [5] fFWD fREV fND Continued on the next page… Typical values are at TA = 25°C and VCC = 12 V. Performance may vary for individual units, within the specified maximum and minimum limits. Maximum voltage must be adjusted for power dissipation and junction temperature; see Power Derating section. 3 Negative current is defined as conventional current coming out of (sourced from) the specified device terminal. 4 Load circuit is R = 100 Ω and C = 10 pF. Pulse duration measured at threshold of ( (I L L CC(HIGH) + ICC(LOW)) /2) 5 Maximum Operating Frequency is determined by satisfactory separation of output pulses: I CC(LOW) of tw(FWD)(MIN). If the customer can resolve shorter low-state durations, maximum fREV and fND may be increased. 1 2 Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com 4 Two-Wire, Differential, Vibration-Resistant Sensor with Speed and Direction Output ATS699LSN OPERATING CHARACTERISTICS (continued): valid throughout full operating and temperature ranges; using Reference Target 60-0, unless otherwise noted. Characteristics Symbol Test Conditions Min. Typ. [1] Max. Unit Magnitude valid for both differential magnetic channels –60 – 60 G Peak to peak differential signal; valid for each magnetic channel. 30 – 1200 G Using Allegro 60-0 reference target 0.5 – 2.5 mm DAC CHARACTERISTICS Allowable User-Induced Offset PERFORMANCE CHARACTERISTICS Operational Magnetic Range BIN Air Gap Range Vibration Immunity (Startup) Vibration Immunity (Running Mode) ErrVIB(SU) See Figure 2 ErrVIB See Figure 2 -xxxxL variant TTARGET – – degrees -xxxxH variant TTARGET – – degrees -xxxxL variant 0.12 × TTARGET – – degrees -xxxxH variant TTARGET – – degrees 360º (degrees prime) Target Valley Tooth VSP TTARGET VPROC VPROC(BOP) TVPROC (BOP) VPROC(pk-pk) (BRP) VPROC(BRP) VPROC = the processed analog signal of the sinusoidal magnetic input (per channel) TTARGET = the period between successive similar (rising or falling) sensed magnetic edges VSP VSP(sep) = VSP VPROC(pk-pk) Figure 2: Definition of TTARGET 1 Typical values are at TA = 25°C and VCC = 12 V. Performance may vary for individual units, within the specified maximum and minimum limits. Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com 5 ATS699LSN Two-Wire, Differential, Vibration-Resistant Sensor with Speed and Direction Output OPERATING CHARACTERISTICS (continued): valid throughout full operating and temperature ranges; using Reference Target 60-0, unless otherwise noted. Characteristics Symbol Test Conditions Min. Typ. [1] Max. Unit INPUT MAGNETIC CHARACTERISTICS Allowable Differential Sequential Signal Variation 1 BSEQ(n+1) / BSEQ(n) Signal cycle-to-cycle variation (see Figure 3) 0.6 – – – Allowable Differential Sequential Signal Variation 2 BSEQ(n+1) / BSEQ(n) Overall signal variation (see Figure 3) 0.4 – – – BIN > 60 GPP BIN ≤ 1200 GPP – 2× TTARGET