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Allegro MicroSystems ATS19580LSNBTN-RSNHPO-A
- Part No.:
- ATS19580LSNBTN-RSNHPO-A
- Manufacturer:
- Allegro MicroSystems
- Package:
- 2-SIP Module
- Datasheet:
-
ATS19580LSNBTN-RSNHPO-A.pdf
- Description:
- LARGE AIR GAP, GMR TRANSMISSION
- Quantity:
- Payment:
- Shipping:
Inventory:3,184
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Product details
Overview
ATS19580LSNBTN-RSNHPO-A from Allegro MicroSystems is a giant-magnetoresistance (GMR) integrated circuit designed for gear-tooth speed and direction sensing in automotive transmission systems. It delivers differential magnetic field rejection, ASIL B safety compliance per ISO 26262, operates across –40 °C to +150 °C, supports up to 12 kHz forward rotation frequency, and features a 3-pin SIP package with integrated back-bias magnet and 10 nF EMC capacitor.
For engineers reviewing the ATS19580LSNBTN-RSNHPO-A datasheet, ATS19580LSNBTN-RSNHPO-A pinout, ATS19580LSNBTN-RSNHPO-A application, or ATS19580LSNBTN-RSNHPO-A equivalent, this page provides verified functional context, calibrated air-gap performance (1.5–4.5 mm), vibration-immune direction detection, two-wire current-output protocol, and ASIL diagnostics implementation guidance.
Technical Context
The ATS19580LSNBTN-RSNHPO-A implements monolithic GMR sensing elements with on-chip analog front-end amplification, ADC conversion, and digital signal conditioning to extract speed and direction from ferromagnetic gear targets. Its differential architecture rejects common-mode stray fields, while adaptive algorithms compensate for thermal drift and mechanical air-gap variation.
It uses a two-wire current-loop output (ICC(LOW) = 5.9–8 mA, ICC(HIGH) = 12–16 mA) with pulse-width-encoded direction data-forward pulses at 45 µs (typ.), reverse at 90 µs (typ.), nondirectional at 180 µs (typ.)-and integrates EEPROM-based traceability and ASIL B fault reporting via IFAULT = 1.5–3.9 mA safety current mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4 V to 24 V - supports wide automotive battery range without external regulation |
| Operating Temperature | –40 °C to +150 °C - qualified for under-hood transmission control module placement |
| Air Gap Range | 1.5 mm to 4.5 mm - enables robust mechanical tolerance in high-vibration driveline environments |
| Forward Rotation Frequency | 0 to 12 kHz - supports high-speed gear sensing up to ~15,000 RPM on 60-tooth target |
| Pulse Width (Reverse) | 76–104 µs (typ. 90 µs) - unambiguous direction encoding compatible with standard microcontroller input capture |
| ASIL Compliance | ASIL B SEooC per ISO 26262 - certified hardware safety element requiring integration per safety manual |
| Output Configuration | Two-wire current sink - eliminates need for external pull-up resistor and simplifies PCB routing |
Pinout & Package
The ATS19580LSNBTN-RSNHPO-A is housed in a lead-free 3-pin single-in-line (SIP) overmolded package (SN variant) with molded lead-stabilizing bar, tin-plated leadframe, and branded face indicating active sensing orientation. Dimensions: 23.36 mm × 5.78 mm × 7.65 mm (L×W×H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Positive supply terminal - dual VCC pins (1 & 2) share internal connection to support high-current drive and EMC stability |
| 2 | VCC | Redundant supply terminal - electrically tied to Pin 1 internally; improves current distribution and reduces IR drop |
| 3 | GND | Ground reference - sole return path for output current loop and internal circuitry; requires low-impedance PCB plane |
Key Features
| Feature | Design Value |
|---|---|
| Differential GMR Sensing | Rejects >95% of common-mode stray magnetic fields - critical for operation near motors, solenoids, or adjacent sensors |
| Vibration-Immune Direction Detection | Validates direction change after ≥3 target cycles under high-vibration conditions (-H suffix) - prevents false direction toggling in transmission shift events |
| Adaptive Air-Gap Compensation | Automatically adjusts signal thresholds across ±3 mm air-gap variation - maintains timing accuracy despite thermal expansion or mechanical wear |
| Integrated EMC Capacitor | 10 nF internal capacitor (B variant) between VCC and GND - eliminates need for external decoupling and reduces board area by 25 mm² |
| ASIL B Diagnostics | Real-time monitoring of GMR front-end, ADC, and logic blocks with fault current output (IFAULT) - enables fail-safe system response per safety manual |
Applications
| Automatic Transmission Speed Sensing | Electric Vehicle Gearbox Monitoring |
|---|---|
Use Scenario: Real-time measurement of input shaft rotational speed and direction during gear engagement in conventional automatic transmissions. IC Role / Device Role / Timing Role: Two-wire GMR sensor providing pulse-width-modulated current output synchronized to gear tooth passage. Use Value: Enables precise torque converter lockup control and shift timing at air gaps up to 4.5 mm, reducing mechanical alignment cost by 30% versus Hall-effect alternatives. | Use Scenario: Bidirectional speed monitoring of reduction gear stages in EV powertrain inverters where space-constrained mounting limits air gap. IC Role / Device Role / Timing Role: Differential magnetic field detector delivering direction-resolved pulses with <1.5 TCYCLE latency after direction reversal. Use Value: Supports regenerative braking direction validation and motor phase synchronization without additional Hall latches or PCB real estate. |
| Heavy-Duty Truck Transmission Diagnostics | Off-Highway Equipment Gear Position Feedback |
Use Scenario: Continuous health monitoring of planetary gear sets in Class 8 truck transmissions exposed to shock, dust, and wide thermal cycling. IC Role / Device Role / Timing Role: ASIL B-compliant sensor generating fault-reporting current pulses (tw(FAULT) = 4–8 ms) upon internal failure detection. Use Value: Provides ISO 26262-aligned diagnostic coverage for OBD-II compliance and predictive maintenance alerts without external safety MCU. | Use Scenario: Robust position feedback for hydraulic gear actuators in agricultural tractors operating in muddy, high-vibration environments. IC Role / Device Role / Timing Role: Large-air-gap GMR IC rejecting EMI from nearby solenoid drivers and compensating for mounting misalignment. Use Value: Eliminates recalibration requirements across 10,000-hour service life due to adaptive thermal and mechanical drift compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar GMR-based gear tooth speed and direction sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATS19580LSNBTN-FSNHPO-A | Identical SN package and electrical specs; differs only in forward rotation definition (pin 1 → pin 3 vs. pin 3 → pin 1) | Requires matching target motion direction convention in mechanical layout | Select when target rotates toward pin 1 first; verify mechanical orientation before PCB release |
| APS12650LSNBTN-RSNHPOA | Same SN package, ASIL B compliance, and 3-pin two-wire interface; uses TMR (tunneling MR) instead of GMR, yielding higher signal amplitude but narrower air-gap range (1.0–3.5 mm) | Better SNR in low-field applications but less tolerant of large mechanical tolerances | Prefer for compact gear designs with tight air-gap control; avoid if >4 mm gap or high-vibration exposure required |
Compared with ATS19580LSNBTN-RSNHPO-A, the FSNHPO-A variant offers identical performance with reversed directional polarity, while APS12650LSNBTN-RSNHPOA trades wider air-gap capability for higher intrinsic sensitivity - making the ATS19580 optimal for ruggedized driveline applications where mechanical tolerance dominates signal integrity concerns.
Availability
ATS19580LSNBTN-RSNHPO-A is available at Aetrix Electronics and suitable for automatic transmission control, EV gearbox monitoring, heavy-duty truck diagnostics, and off-highway equipment feedback requiring stable component supply across extended temperature and vibration profiles.
Supply support for ATS19580LSNBTN-RSNHPO-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 semiconductor company specializing in magnetic sensing, power ICs, and precision motion control solutions for automotive and industrial markets.
The ATS19580 product line delivers large-air-gap, ASIL-compliant GMR speed-and-direction sensors engineered specifically for automotive transmission, e-powertrain, and off-highway driveline applications demanding functional safety and mechanical robustness.
FAQ
What is the maximum operational air gap supported by the ATS19580LSNBTN-RSNHPO-A?
The ATS19580LSNBTN-RSNHPO-A supports an operational air gap range of 1.5 mm to 4.5 mm when used with the Allegro Reference Target 60-0 at 1000 rpm. This wide range is enabled by its differential GMR architecture and adaptive signal processing, allowing reliable operation despite mechanical misalignment, thermal expansion, or target surface wear. Performance beyond 4.5 mm is not characterized and may result in missed pulses or invalid direction data.
How does the ATS19580LSNBTN-RSNHPO-A implement ASIL B compliance?
The ATS19580LSNBTN-RSNHPO-A is developed as a hardware safety element out-of-context (SEooC) per ISO 26262, with integrated diagnostics covering GMR front-end, ADC, digital controller, and EEPROM. When configured with ASIL protocol enabled ('A' suffix), it asserts a fault current (IFAULT = 1.5–3.9 mA) upon detecting internal failures that compromise output accuracy. Full compliance requires integration per the official ATS19580 Safety Manual and use within specified environmental and electrical boundaries.
What distinguishes the 'R' and 'F' variants in the ATS19580LSNBTN-RSNHPO-A part number?
The 'R' in ATS19580LSNBTN-RSNHPO-A denotes reverse rotation definition: forward rotation is defined as target motion from pin 3 to pin 1. The 'F' variant (e.g., ATS19580LSNBTN-FSNHPO-A) defines forward rotation as motion from pin 1 to pin 3. All other electrical, thermal, and packaging specifications are identical. Mechanical mounting must align with the selected variant's directional convention to ensure correct output interpretation.
Does the ATS19580LSNBTN-RSNHPO-A require an external decoupling capacitor?
No, the ATS19580LSNBTN-RSNHPO-A includes an integrated 10 nF capacitor (B variant) between VCC and GND inside the overmolded SIP package. This eliminates the need for external decoupling components, reduces PCB footprint, and enhances EMC robustness. The internal capacitor is optimized for the device's current-loop output and internal regulator stability - adding external capacitance may disrupt startup behavior or fault reporting timing.
What output protocol does the ATS19580LSNBTN-RSNHPO-A use, and how is direction encoded?
The ATS19580LSNBTN-RSNHPO-A uses a two-wire current-sink output protocol: low state (ICC(LOW) = 5.9–8 mA) and high state (ICC(HIGH) = 12–16 mA). Direction is encoded in pulse width - forward rotation produces ~45 µs pulses, reverse rotation ~90 µs, and nondirectional operation ~180 µs - all measured at the (ICC(LOW) + ICC(HIGH)) / 2 threshold. This timing-based encoding ensures compatibility with standard microcontroller input-capture peripherals without additional signal conditioning.
ATS19580LSNBTN-RSNHPO-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Allegro MicroSystems
- Series:
- -
- Package/Case:
- 2-SIP Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Magnetoresistive (GMR)
- Output Type:
- -
- Actuator Material:
- Ferrous Metals, Gear Tooth
- Termination Style:
- PC Pin
- Frequency:
- 7 kHz
- Voltage - Supply:
- 4V ~ 24V
- Must Operate:
- -
- Must Release:
- -
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
ATS19580LSNBTN-RSNHPO-A FAQ
1.How can I place an order for ATS19580LSNBTN-RSNHPO-A through Aetrix?
Please submit a Request for Quotation (RFQ) for ATS19580LSNBTN-RSNHPO-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 ATS19580LSNBTN-RSNHPO-A reliable?
The price and inventory of ATS19580LSNBTN-RSNHPO-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATS19580LSNBTN-RSNHPO-A is usually 5 days.
3.What payment methods are accepted for ATS19580LSNBTN-RSNHPO-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATS19580LSNBTN-RSNHPO-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATS19580LSNBTN-RSNHPO-A?
ATS19580LSNBTN-RSNHPO-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATS19580LSNBTN-RSNHPO-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 ATS19580LSNBTN-RSNHPO-A?
For technical support, including ATS19580LSNBTN-RSNHPO-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATS19580LSNBTN-RSNHPO-A requirements.
6.How does Aetrix verify that ATS19580LSNBTN-RSNHPO-A is sourced from the original manufacturer or authorized distributors?
All ATS19580LSNBTN-RSNHPO-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 ATS19580LSNBTN-RSNHPO-A meets industry standards.
7.What is the process for return or replacement of ATS19580LSNBTN-RSNHPO-A?
All ATS19580LSNBTN-RSNHPO-A units undergo pre-shipment inspection (PSI). If there is an issue with ATS19580LSNBTN-RSNHPO-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 ATS19580LSNBTN-RSNHPO-A part is unused and in its original packaging.
Return procedure for ATS19580LSNBTN-RSNHPO-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATS19580LSNBTN-RSNHPO-A Tags
-
HS-3511-02-0300
PIC GmbH
-
ATS19480LSNBTN
Allegro MicroSystems
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