A1699LUBTN-FSWPH-T

A1699 Two-Wire, Differential, Vibration-Resistant Sensor IC with Speed and Direction Output FEATURES AND BENEFITS DESCRIPTION • Integrated IC and capacitor, single overmolded package to reduce external EMI-protection requirements • Two-wire, pulse-width output protocol • Highly configurable output protocol options • Digital output representing target profile • 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 switchpoints • Large operating air gap capability • Undervoltage lockout • True zero-speed operation • Wide operating voltage range • AEC-Q100 automotive qualified • Robust test-coverage capability with Scan Path and IDDQ measurement The A1699 is an optimized Hall-effect integrated circuit (IC) that provides a user-friendly solution for direction detection and true zero-speed, digital ring-magnet sensing. The small package can be easily assembled and used in conjunction with a wide variety of target sensing applications. Package: 2-Pin SIP (Suffix UB) The A1699 is provided in a 2-pin miniature SIP package (suffix UB) that is lead (Pb) free, with tin leadframe plating. The UB package includes an IC and capacitor integrated into a single overmolded package to reduce external EMI protection requirements. 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 A1699 is particularly adept at handling vibration without sacrificing maximum air gap capability or creating any erroneous direction information. The advanced vibration detection algorithm will systematically calibrate the sensor IC on the initial magnetic poles of true target rotation and not on vibration, always guaranteeing an accurate signal in running mode. Advanced signal processing and innovative algorithms make the A1699 an ideal solution for a wide range of speed- and direction-sensing needs. 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 A1699-DS, Rev. 8 MCO-0000636 April 3, 2019 Two-Wire, Differential, Vibration-Resistant Sensor IC with Speed and Direction Output A1699 Complete Part Number Format Configuration A1699 L UB TN -X X X X X -T Allegro Identifier and Device Type Operating Temperature Range Package Designation Instructions (Packing) Leadframe Plating Allegro Identifier and Device Type [A1699] Operating Temperature Range [L] Package Designation [UB] 2-pin plastic SIP Instructions (Packing) [TN] Tape and reel Configuration Rotation Direction [-F] pin 1-to-2 forward or [-R] pin 2-to-1 forward Number of Pulses [S] single, one pulse per magnetic pole pair or [D] dual, one pulse for each north and south pole Reverse Pulse Width [N] 90 µs (narrow) or [W] 180 µs (wide) Calibration Pulses [B] Blanked, no output during Calibration or [P] Pulses during Calibration Vibration Immunity / Direction Change [L] Low vibration immunity with immediate direction change detection or [H] High vibration immunity with non-direction pulses Leadframe Plating [T] Lead (Pb) free For example: A1699LUBTN-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 IC with Speed and Direction Output A1699 SELECTION GUIDE Part Number Packing* A1699LUBTN–xxxxx–T 4000 pieces per 13-in. reel *Contact Allegro™ for additional packing options. ABSOLUTE MAXIMUM RATINGS* Characteristic Symbol Supply Voltage VCC Reverse Supply Voltage VRCC Rating Unit 28 V –18 V –40 to 150 ºC TJ(max) 165 ºC Tstg –65 to 170 ºC Value (Typ.) Unit 10000 pF Operating Ambient Temperature TA Maximum Junction Temperature Storage Temperature Notes Refer to Power Derating Section L temperature range INTERNAL DISCRETE CAPACITOR RATINGS Characteristic Symbol Nominal Capacitance CSUPPLY Test Conditions Connected between VCC and GND Terminal List Table 1 Name Number Function VCC 1 Supply Voltage GND 2 Ground 2 Package UB, 2-Pin SIP Pinout Diagram Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com 3 Two-Wire, Differential, Vibration-Resistant Sensor IC with Speed and Direction Output A1699 OPERATING CHARACTERISTICS: Valid throughout full operating and temperature ranges, unless otherwise specified Characteristic Symbol Test Conditions Min. Typ.1 Max. Unit ELECTRICAL CHARACTERISTICS Supply Voltage2 Undervoltage Lockout VCC Operating, TJ < TJ(max) 4 – 24 V VCC transitioning from 0 → 5 V or 5 → 0 V – 3.6 3.95 V VCC = VRCC(max) – – –10 mA3 VZSUPPLY ICC = ICC(max) + 3 mA, TA = 25ºC 28 – – V ICC(LOW) Low-current state (running mode) 5 – 8 mA ICC(HIGH) High-current state (running mode) 12 – 16 mA Low-current level (calibration) and Power-on mode 5 – 8.5 mA 1.9 – – – VCC(UV) Reverse Supply Current3 Supply Zener Clamp Voltage Supply Current IRCC ICC(SU) (LOW) Supply Current Ratio ICC(HIGH)/ ICC(LOW) Measured as a ratio of high current to low current OUTPUT Output Rise Time tr ΔI/Δt from 10% to 90% ICC level; Corresponds to measured output slew rate with CSUPPLY – 2 4 μs Output Fall Time tf ΔI/Δt from 90% to 10% ICC; Corresponds to measured output slew rate with CSUPPLY – 2 4 μs OUTPUT PULSE CHARACTERISTICS4 Pulse Width, Forward Rotation Pulse Width, Reverse Rotation Pulse Width, Non-Direction tw(FWD) tw(REV) 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 Continued on the next page… VS 1 VCC CSUPPLY A1699 2 GND VOUT CL RL Figure 1: Typical Application Circuit Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com 4 Two-Wire, Differential, Vibration-Resistant Sensor IC with Speed and Direction Output A1699 OPERATING CHARACTERISTICS (continued): Valid throughout full operating and temperature ranges, unless otherwise specified Characteristic Symbol Test Conditions Min. Typ.1 Max. Unit Operate Point BOP % of peak-to-peak IC-processed magnetic signal – 69 – % Release Point BRP % of peak-to-peak IC-processed magnetic signal – 31 – % -xSxxx variant 0 – 12 kHz -xDxxx variant 0 – 6 kHz -xSNxx variant 0 – 7 kHz -xDNxx variant 0 – 3.5 kHz OPERATING CHARACTERISTICS Operating Frequency, Forward Rotation fFWD Operating Frequency, Reverse Rotation5 fREV Operating Frquency, Non-Direction Pulses5 fND -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 Magnitude valid for both differential magnetic channels –300 – 300 G Peak to peak differential signal; valid for each magnetic channel. 30 – 1200 G -xxxxL variant TTARGET – – deg. -xxxxH variant TTARGET – – deg. -xxxxL variant 0.12 × TTARGET – – deg. -xxxxH variant TTARGET – – deg. – –0.2 – %/°C DAC CHARACTERISTICS Allowable User-Induced Offset PERFORMANCE CHARACTERISTICS Operational Magnetic Range BIN Vibration Immunity (Startup) ErrVIB(SU) See Figure 2 Vibration Immunity (Running Mode) ErrVIB See Figure 2 Magnetic Temperature Coefficient TCMAG Optimized value, for ring magnet 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. voltage must be adjusted for power dissipation and junction temperature; see representative discussions in Power Derating section. 3 Negative current is defined as conventional current coming out of (sourced from) the specified device terminal. 4 Load circuit is RL = 100 Ω and CL = 10 pF. Pulse duration measured at threshold of ( (I 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. 2 Maximum Target S N S 360º (degrees prime) N VSP T TARGET VPROC VPROC(BOP) TVPROC VPROC(pk-pk) VPROC = the processed analog signal of the sinusoidal magnetic input (per channel) TTARGET = the period between successive sensed target magnetic edges of the same polarity (either both north-to-south or both south-to-north) (BOP) (BRP) VPROC(BRP) VSP VSP(sep) = VSP VPROC(pk-pk) Figure 2: Definition of TTARGET Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com 5 Two-Wire, Differential, Vibration-Resistant Sensor IC with Speed and Direction Output A1699 OPERATING CHARACTERISTICS (continued): Valid throughout full operating and temperature ranges, unless otherwise specified Characteristic Symbol Test Conditions Min. Typ.1 Max. Unit INPUT MAGNETIC CHARACTERISTICS Allowable Differential Sequential Signal Variation BSEQ(n+1) / BSEQ(n) Signal cycle-to-cycle variation (see Figure 3) 0.6 – – – BSEQ(n+i) / BSEQ(n) Overall signal variation (see Figure 3) 0.4 – – – BIN > 60 GPP BIN ≤ 1200 GPP – 2× TTARGET