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Specifications
Mfr. Part #:
A19360LUBATN-FAE4-A
Key Attributes
Model Number:
A19360LUBATN-FAE4-A
Product Description
Product Overview
The A19360 is a high-resolution GMR wheel speed and distance sensor IC utilizing giant magnetoresistance (GMR) technology. It accurately encodes the speed and direction of rotating ring magnets, generating multiple events per magnetic cycle for precise distance measurement. Innovative algorithms maintain robustness against air gap variations. Compatible with standard automotive braking system ring magnets, the A19360 offers options for 4 or 8 events per cycle and Pulse Width or AK Protocol. It is designed for enhanced ADAS accuracy, such as in automated parking, and is developed in accordance with ISO 26262 for automotive safety-related systems (ASIL B(D) pending assessment).
Product Attributes
- Brand: Allegro MicroSystems
- Technology: GMR
- Package: 2-Pin SIP (suffix UB)
- Certifications: ISO 26262 ASIL B(D) (pending assessment)
- Material: Lead (Pb) free, tin lead frame plating
Technical Specifications
| Characteristic | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
| ABSOLUTE MAXIMUM RATINGS | ||||||
| Supply Voltage | VCC | Refer to Power Derating section; potential between pin 1 and pin 2 | 28 | V | ||
| Reverse Supply Voltage | VRCC | -18 | V | |||
| Operating Ambient Temperature | TA | -40 | 150 | C | ||
| Maximum Junction Temperature | TJ(max) | 175 | C | |||
| Storage Temperature | Tstg | -65 | 170 | C | ||
| Applied Magnetic Flux Density | B | In any direction | 500 | G | ||
| INTERNAL DISCRETE CAPACITOR RATINGS | ||||||
| Nominal Capacitance | CSUPPLY | Connected between pin 1 and pin 2 (refer to Figure 3) | 2.2 | nF | ||
| ELECTRICAL CHARACTERISTICS | ||||||
| Supply Voltage | VCC | Potential between pin 1 and pin 2 | V | |||
| -xxRx variant | VCC | 4.25 | 24 | V | ||
| -xxEx variant | VCC | 5.2 | 24 | V | ||
| Undervoltage Lockout (UVLO) | VCC(OFF) | VCC switch off | 3.5 | V | ||
| UVLO Hysteresis | VHYS | -xxRx variant | 0.5 | V | ||
| UVLO Hysteresis | VHYS | -xxEx variant | 1.5 | V | ||
| Reverse Supply Current | IRCC | VCC = VRCC(MAX) | -10 | mA | ||
| Supply Zener Clamp Voltage | VZsupply | ICC = ICC(MAX) + 3 mA | 28 | V | ||
| Supply Current (Low-current state) | ICC(LOW) | 5.88 | 7 | 8.4 | mA | |
| Supply Current (Mid-current state) | ICC(MID) | 11.76 | 14 | 16.8 | mA | |
| Supply Current (High-current state) | ICC(HIGH) | 23.52 | 28 | 33.6 | mA | |
| Supply Current Ratio | ICC(MID) /ICC(LOW) | (isothermal) | 1.9 | |||
| Supply Current Ratio | ICC(HIGH) /ICC(LOW) | (isothermal) | 3.8 | |||
| Fault Current | IFAULT | Refer to Figure 16 | 1 | 3.8 | mA | |
| Fault Current Duration | tW(FAULT) | Refer to Figure 16 | 4 | 7 | ms | |
| Output Rise, Fall Slew Rate | SR | RL = 50 , CL = 10 pF, measured between 10% and 90% of signal | 28 | mA/s | ||
| POWER-ON CHARACTERISTICS | ||||||
| Power-On State | POS | VCC > VCC(min), as connected in Figure 3 | ICC(LOW) | mA | ||
| Power-On Time | tPO | VCC > VCC(min), as connected in Figure 3 | 1 | ms | ||
| Calibration Time | TCAL | Post tPO time to first AK protocol output event (f < 200 Hz) -xAx8 variant | 0.75 | 1.25 | TCYCLE | |
| Calibration Time | TCAL | Post tPO time to first AK protocol output event (f < 200 Hz) -xAx4 variant | 1 | 1.5 | TCYCLE | |
| Calibration Time | TCAL | Post tPO time to first valid direction event (f < 200 Hz) -xxx8 variant | 0.75 | 1.25 | TCYCLE | |
| Calibration Time | TCAL | Post tPO time to first valid direction event (f < 200 Hz) -xxx4 variant | 1 | 1.5 | TCYCLE | |
| INPUT CHARACTERISTICS AND PERFORMANCE | ||||||
| Operating Single-Ended Magnetic Input Signal | BSE | Combined single-element signal and offset must fall within this range. | -100 | 100 | G | |
| Operating Differential Magnetic Input Signal | BDIFF(pk-pk) | Peak-to-peak of differential magnetic input (refer to Figure 7) | 5 | 400 | G | |
| Allowable User-Induced Differential Offset | BDIFFEXT | External differential signal bias (dc), operating within specification | -20 | 20 | G | |
| Operating Magnetic Input Signal Variation | BDIFF(pk-pk) | Bounded amplitude ratio within TWINDOW; no missed output transitions or flat line condition; possible incorrect direction information; see Figure 5 and Figure 6 | 0.6 | |||
| Operating Magnetic Input Signal Window | TWINDOW | Rolling window where BDIFF(pk-pk) cannot exceed bounded ratio; see Figure 5 and Figure 6 | 5 | TCYCLE | ||
| Operate Point | BOP | % of peak-to-peak IC-processed signal | 60 | % | ||
| Release Point | BRP | % of peak-to-peak IC-processed signal | 40 | % | ||
| Repeatability | ||||||
| Primary pulses, percent of a TCYCLE one sigma | ErrE | Constant air gap, temperature, and target speed. BDIFF(pk-pk) > 20 G(pk-pk). | 0.05 | % | ||
| High-resolution pulses, one sigma | ErrE | Constant air gap, temperature, and target speed. BDIFF(pk-pk) > 20 G(pk-pk). | 0.085 | % | ||
| Phase Separation | P | Refer to Phase Separation Calculation section for calculations | 30 | 150 | degrees | |
| OUTPUT CHARACTERISTICS (-XPX8 VARIANT) | ||||||
| Pulse Width Off Time | tW(PRE) | Enforced signal low duration | 25 | 30 | 36 | s |
| Forward Pulse Width | tW(FWD) | Magnetic input frequency < fL,PW | 38 | 45 | 52 | s |
| Reverse Pulse Width | tW(REV) | Magnetic input frequency < fL,PW | 76 | 90 | 104 | s |
| High-Speed Pulse Width | tW(HS) | Magnetic input frequency > fH,PW | 25 | 30 | 36 | s |
| Standstill Pulse Width | tW(STILL) | 1232 | 1440 | 1656 | s | |
| Standstill Period | tSTOP | 590 | 737 | 848 | ms | |
| Low-to-High Speed Threshold | fH,PW | Frequency at which device transitions to high- speed operation (increasing frequency) | 850 | 1000 | 1150 | Hz |
| High-to-Low Speed Threshold | fL,PW | Frequency at which device transitions to low- speed operation (decreasing frequency) | 800 | 950 | 1100 | Hz |
| Speed Threshold Hysteresis | fHYS,PW | 50 | Hz | |||
| Operating Frequency, High-Speed Pulses | fHS | 0 | 4 | kHz | ||
2401301420_ALLEGRO-A19360LUBATN-FAE4-A_C5932924.pdf
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