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Allegro MicroSystems A19360LUBATN-FAE4-A
- Part No.:
- A19360LUBATN-FAE4-A
- Manufacturer:
- Allegro MicroSystems
- Category:
- Angle, Linear Position Measuring
- Package:
- 2-SIP Module
- Datasheet:
-
A19360LUBATN-FAE4-A.pdf
- Description:
- HIGH-RESOLUTION GMR WHEEL SPEED
- Quantity:
- Payment:
- Shipping:
Inventory:3,443
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Product details
Overview
A19360LUBATN-FAE4-A from Allegro MicroSystems is a high-resolution GMR wheel speed and distance sensor IC designed for automotive ADAS and braking systems. It delivers 8 events per magnetic pole-pair using AK protocol, supports ASIL B safety compliance per ISO 26262, operates from –40°C to +150°C, and integrates GMR sensing elements, digital controller, diagnostics, and 2.2 nF protection capacitor in a two-pin SIP (UB) package for automated parking and precise distance measurement.
For engineers reviewing the A19360LUBATN-FAE4-A datasheet, A19360LUBATN-FAE4-A pinout, A19360LUBATN-FAE4-A application, or A19360LUBATN-FAE4-A equivalent, this page provides verified technical context, pin-level circuit roles, real-world automotive use cases, and validated alternative options aligned with OEM wheel-speed system design requirements.
Technical Context
The A19360LUBATN-FAE4-A implements SolidSpeed Digital Architecture with adaptive algorithms that generate eight output words per pole-pair at low speeds (<200 Hz), automatically crossing over to two-word standard resolution above 200 Hz to preserve bandwidth on the two-wire interface. Its differential GMR front-end uses spaced elements (E1–E4) with 1.5 mm pitch to reject common-mode field noise and enable robust air-gap operation up to 500 G peak-to-peak.
This variant is factory-programmed for forward rotation (F), extended UVLO hysteresis (E), AK protocol (A), 8-event resolution (8), ASIL protocol enabled (-A), and target trim for specific ring magnets. It embeds EEPROM-based calibration, dynamic threshold tracking, vibration immunity logic (4 direction changes trigger suppression), and fault reporting via IFAULT current pulses (1–3.8 mA, 4–7 ms duration).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Protocol | AK protocol with 10-bit word (speed pulse + 8 data bits + parity); enables air-gap reserve (LR) and high-resolution pulse labeling (HR0–HR2) |
| Resolution Mode | 8 events per pole-pair: two primary + six high-resolution words below fL,AK = 190 Hz; auto-crossover to 2-word mode above fH,AK = 200 Hz |
| Supply Range | 5.2 V to 24 V - supports extended UVLO hysteresis (1.5 V) for stable operation during battery transients in 12 V/24 V automotive systems |
| Operating Temp | –40°C to +150°C ambient - qualified for under-hood wheel-end placement with junction limit of 175°C |
| Magnetic Input | Differential BDIFF(pk-pk): 5–400 G; phase separation range: 30°–150°; supports radial-sensed ferrite ring magnets with NPP ≥ 2 |
| Repeatability | 0.085% one-sigma jitter on high-resolution pulses - enables sub-millimeter distance accuracy in automated parking applications |
| Safety Certification | ASIL B SEooC per ISO 26262 - certified hardware safety element requiring integration per safety manual for functional safety compliance |
Pinout & Package
Package: Two-pin SIP (suffix UB), Pb-free with tin-plated lead frame; overmolded construction includes integrated 2.2 nF supply capacitor and molded lead-stabilizing bar for mechanical robustness during SMT assembly and shipping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Supply Voltage Input | Pin 1 accepts 5.2–24 V DC; internal regulators power analog/digital blocks; Zener clamp limits to 28 V; reverse voltage tolerance: –18 V |
| GND | Ground Reference | Pin 2 serves as return path for all currents (ICC(LOW)/ICC(MID)/ICC(HIGH)/IFAULT); forms two-wire loop with VCC for current-output signaling |
Key Features
| Feature | Design Value |
|---|---|
| GMR Sensing Architecture | Differential pair (E1–E3, E2–E4) with 1.5 mm pitch enables >2 mm air-gap operation and full-pitch vibration immunity via SolidSpeed adaptive timing |
| Integrated Protection Capacitor | 2.2 nF ceramic capacitor embedded in overmold eliminates external BOM component and PCB layout sensitivity to EMC/ESD transients |
| AK Protocol Compliance | Fully compliant with AK Protocol v4.0 (with LM/HR bit extensions); supports air-gap monitoring (bits [5:7]) and direction validity (GDR bit) for diagnostic traceability |
| Vibration Detection Logic | Triggers suppression after 4 direction reversals without 8 consecutive constant-direction pulses (TVIB_CONST = 8 for -xxx8 variants) |
| Calibration & Direction Validation | Self-calibrates post-power-on (tCAL ≤ 1.25 TCYCLE); validates rotation direction before first output event; no external initialization required |
Applications
| Automated Parking Systems | Electronic Brake Distribution (EBD) |
|---|---|
|
Use Scenario: Precise wheel rotation counting and distance estimation during low-speed (<5 km/h), multi-turn maneuvers in tight urban spaces. IC Role / Device Role / Timing Role: High-resolution GMR sensor providing 8× finer angular resolution than legacy Hall sensors, enabling <1 cm positional accuracy per revolution. Use Value: Enables reliable parking assist activation and obstacle avoidance by delivering repeatable 0.085% pulse jitter performance even with ±0.5 mm air-gap variation. |
Use Scenario: Real-time individual wheel speed feedback to ECU for brake force modulation during ABS/EBD actuation on split-μ surfaces. IC Role / Device Role / Timing Role: Two-wire current-output sensor with ASIL B SEooC certification, delivering fault-aware speed pulses and direction data via AK protocol. Use Value: Supports functional safety requirements through integrated diagnostics (e.g., LR bit for air-gap degradation, GDR bit for direction validity) and fault-current signaling (IFAULT). |
| Adaptive Cruise Control (ACC) | Electric Power Steering (EPS) Speed Feedback |
|
Use Scenario: Vehicle longitudinal speed derivation from driven axle wheels during highway ACC operation, including coast-down and regenerative braking phases. IC Role / Device Role / Timing Role: Robust magnetic encoder interfacing with standard ferrite ring magnets; immune to EMI from nearby inverters and motors. Use Value: Maintains signal integrity up to 4 kHz input frequency with <500 G magnetic tolerance and full-pitch vibration rejection, ensuring uninterrupted speed loop control. |
Use Scenario: Redundant wheel speed input for EPS torque overlay algorithms during lane-keeping assist (LKA) and torque-vectoring functions. IC Role / Device Role / Timing Role: Dual-role sensor providing both primary speed pulses and high-resolution HR pulses for fine-grained steering angle correlation. Use Value: Delivers synchronized direction-valid pulses (DR bit) and air-gap status (LM bits) to validate sensor health in real time without external supervision. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wheel speed sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| A19350LUBATN-FAE4-A | 4-event AK protocol variant; identical package, temperature range, and ASIL B SEooC qualification; lower resolution but wider operating frequency (0–2.5 kHz) | Preferred for cost-sensitive EBD or ABS systems where 4-event resolution suffices and higher-frequency response is prioritized over distance accuracy | Select when system requires simpler decoding, reduced ECU processing load, and guaranteed operation up to 2.5 kHz without crossover behavior |
| ATS6858LSGTN-FAE4-T | Programmable Hall-effect sensor; same UB package, –40°C to +150°C, 5.2–24 V supply; lacks GMR sensitivity and air-gap reserve (LR) capability | Suitable for legacy Hall-based platforms needing drop-in replacement without requalification; not certified for ASIL B SEooC use | Choose only for non-safety-critical applications or brownfield designs where magnetic field strength exceeds 150 G and air-gap stability is assured |
Compared with A19360LUBATN-FAE4-A, the A19350LUBATN-FAE4-A trades resolution for broader frequency headroom and simpler protocol handling, while the ATS6858LSGTN-FAE4-T offers Hall-based compatibility at the expense of GMR-level sensitivity, diagnostic depth, and functional safety certification.
Availability
A19360LUBATN-FAE4-A is available at Aetrix Electronics and suitable for automotive ADAS, electronic braking, and electric power steering systems requiring stable component supply, long-term lifecycle support, and ASIL-compliant sourcing.
Supply support for A19360LUBATN-FAE4-A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Allegro MicroSystems is a U.S.-based designer and manufacturer of high-performance magnetic sensors and power ICs, headquartered in Manchester, NH, with global manufacturing and test facilities.
The A19360 product line was developed specifically for next-generation automotive wheel-speed sensing, emphasizing high-resolution distance measurement, ASIL B functional safety, and robustness in harsh under-hood environments.
FAQ
What is the exact resolution configuration of A19360LUBATN-FAE4-A?
A19360LUBATN-FAE4-A is configured for 8 events per magnetic pole-pair using the AK protocol. It outputs two primary words and six high-resolution words below 190 Hz, then automatically switches to two-word standard resolution above 200 Hz to maintain bandwidth on the two-wire interface. This behavior is fixed per factory programming and cannot be altered in-system.
Does A19360LUBATN-FAE4-A require an external capacitor?
No, A19360LUBATN-FAE4-A does not require an external capacitor. It integrates a 2.2 nF ceramic supply capacitor within its overmolded two-pin SIP (UB) package. This eliminates the need for external decoupling components, reduces PCB footprint, and improves EMC resilience in automotive wiring harness environments.
How is ASIL B compliance implemented in A19360LUBATN-FAE4-A?
A19360LUBATN-FAE4-A is certified as an ASIL B hardware safety element out of context (SEooC) per ISO 26262. Its compliance relies on built-in diagnostics (e.g., air-gap reserve detection, direction validity flag, fault-current signaling), EEPROM-trimmed calibration, and documented integration constraints in the safety manual - not standalone operation.
What magnetic targets are compatible with A19360LUBATN-FAE4-A?
A19360LUBATN-FAE4-A is compatible with standard ferrite or rare-earth radial ring magnets used in automotive braking systems. It supports pole-pair counts ≥2 and requires phase separation between 30° and 150°, calculated per the formula in the datasheet using target radius and air gap. Each unit is trimmed to a specific target profile indicated in the selection guide.
Can A19360LUBATN-FAE4-A operate with reverse supply polarity?
A19360LUBATN-FAE4-A tolerates reverse supply polarity up to –18 V on VCC (pin 1) relative to GND (pin 2), with a maximum reverse supply current of –10 mA. This protects against battery misconnection during service or assembly, but sustained reverse bias must be avoided to prevent latch-up or permanent damage.
A19360LUBATN-FAE4-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Allegro MicroSystems
- Package/Case:
- 2-SIP Module
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- -
- For Measuring:
- Linear Position
- Technology:
- Magnetoresistive
- Rotation Angle - Electrical, Mechanical:
- -
- Linear Range:
- -
- Output:
- Analog
- Output Signal:
- -
- Actuator Type:
- External Magnet, Not Included
- Linearity:
- -
- Resistance:
- -
- Resistance Tolerance:
- -
- Voltage - Supply:
- 5.2V ~ 24V
- Mounting Type:
- Through Hole
- Termination Style:
- PC Pin
- Operating Temperature:
- -40°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 2-UltraMini SIP
A19360LUBATN-FAE4-A FAQ
1.How can I place an order for A19360LUBATN-FAE4-A through Aetrix?
Please submit a Request for Quotation (RFQ) for A19360LUBATN-FAE4-A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for A19360LUBATN-FAE4-A reliable?
The price and inventory of A19360LUBATN-FAE4-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for A19360LUBATN-FAE4-A is usually 5 days.
3.What payment methods are accepted for A19360LUBATN-FAE4-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for A19360LUBATN-FAE4-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for A19360LUBATN-FAE4-A?
A19360LUBATN-FAE4-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your A19360LUBATN-FAE4-A order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for A19360LUBATN-FAE4-A?
For technical support, including A19360LUBATN-FAE4-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your A19360LUBATN-FAE4-A requirements.
6.How does Aetrix verify that A19360LUBATN-FAE4-A is sourced from the original manufacturer or authorized distributors?
All A19360LUBATN-FAE4-A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that A19360LUBATN-FAE4-A meets industry standards.
7.What is the process for return or replacement of A19360LUBATN-FAE4-A?
All A19360LUBATN-FAE4-A units undergo pre-shipment inspection (PSI). If there is an issue with A19360LUBATN-FAE4-A, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The A19360LUBATN-FAE4-A part is unused and in its original packaging.
Return procedure for A19360LUBATN-FAE4-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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