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Allegro MicroSystems APS11700LLHALX-0SL
- Part No.:
- APS11700LLHALX-0SL
- Manufacturer:
- Allegro MicroSystems
- Package:
- SOT-23W
- Datasheet:
-
APS11700LLHALX-0SL.pdf
- Description:
- 24V MICROPOWER HALL EFFECT SWITC
- Quantity:
- Payment:
- Shipping:
Inventory:1,759
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Product details
Overview
The APS11700LLHALX-0SL from Allegro MicroSystems is a micropower, unipolar south-sensing, planar Hall-effect switch IC designed for automotive position sensing in harsh environments. It features 6 µA average supply current, ±40 G operate point, open-drain output, and operates from –40°C to 150°C ambient temperature. It replaces reed switches in gear selectors and door/lid open-close detection.
For engineers reviewing the APS11700LLHALX-0SL datasheet, APS11700LLHALX-0SL pinout, APS11700LLHALX-0SL application, or APS11700LLHALX-0SL equivalent, key selection criteria include Z-axis magnetic sensitivity, micropower duty cycle (160 ms period), AEC-Q100 qualification, ASIL A SEooC capability, and SOT23W package compatibility with 3.3–24 V supply rails.
Technical Context
This device implements dynamic offset cancellation and chopper-stabilized Hall sensing with a 800 kHz chopping frequency to suppress thermal drift and mechanical stress effects. Its micropower architecture cycles between 50 µs awake and ~159.95 ms sleep phases, enabling ultra-low ICC(AVG) while maintaining reliable magnetic threshold detection.
The integrated protection suite includes reverse-battery clamping (–18 V), 40 V load-dump tolerance, output short-circuit current limiting (25 mA typ), and ±11 kV HBM ESD immunity - all validated per AEC-Q100 and ISO 26262 functional safety requirements for ASIL A hardware SEooC integration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.3–24 V: Enables direct battery connection in 12 V/24 V automotive systems without external regulation. |
| Average Supply Current | 6 µA at 12 V, 25°C: Supports >10-year battery life in always-on vehicle subsystems like PRNDL sensors. |
| Operate Point (BOP) | ±40 G typ: Matches common neodymium magnet strengths at air gaps of 1–3 mm for robust mechanical tolerance. |
| Output Type | Open-drain NMOS: Allows flexible pull-up voltage selection (up to 24 V) and wired-OR logic for multi-sensor networks. |
| Junction Temp Range | –40°C to 165°C: Ensures reliability under hood conditions including engine bay proximity and exhaust exposure. |
| Magnetic Sensing Axis | Z-axis (perpendicular to package face): Optimized for PCB-mounted magnets facing top surface of SOT23W package. |
| ESD Rating | ±11 kV HBM: Eliminates need for external TVS diodes in high-noise automotive harness environments. |
Pinout & Package
Package: 3-pin SOT23W (suffix LH), Pb-free with 100% matte tin-plated leadframe, footprint compatible with JEDEC MO-178AB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Power input: Accepts 3.3–24 V with internal 40 V zener clamp; supports load dump survival without external protection. |
| 2 | VOUT | Open-drain output: Sinks up to 40 mA; requires external pull-up; voltage level defined by pull-up source, not device. |
| 3 | GND | Ground reference: Shared return path for supply and output; low-impedance connection critical for EMC immunity. |
Key Features
| Feature | Design Value |
|---|---|
| ASIL A SEooC compliance | Validated hardware safety element out-of-context per ISO 26262, enabling reuse in higher-ASIL systems with external diagnostics. |
| Micropower operation | 160 ms sleep period with 50 µs awake window ensures stable Hall sampling while minimizing average current to 6 µA. |
| Integrated protection | On-chip reverse-battery (-18 V), load-dump (40 V), and output short-circuit (25 mA limit) eliminate discrete protection components. |
| High-temp operation | Rated for 150°C ambient (165°C junction), supporting placement near powertrain, transmission, or HVAC actuators. |
| Omnipolar/unipolar variants | Configurable via part number suffix (e.g., -0SL = unipolar south); avoids firmware changes when magnet polarity differs across platforms. |
Applications
| PRNDL Gear Selector | Trunk/Lid Open-Close Detection |
|---|---|
Use Scenario: Detects mechanical position of automatic transmission shift lever in passenger vehicles. IC Role / Device Role / Timing Role: Z-axis Hall switch provides digital on/off signal indicating P/R/N/D/L detent positions. Use Value: Replaces unreliable reed switches; withstands vibration, temperature cycling, and EMI in cabin-to-console routing. | Use Scenario: Monitors trunk, hood, or glovebox lid status for anti-theft and lighting control. IC Role / Device Role / Timing Role: Unipolar south-sensing switch triggers when magnet approaches branded face during closure. Use Value: 6 µA quiescent current enables always-on monitoring without draining 12 V battery over weeks of inactivity. |
| Clutch/Brake Pedal Position | Wiper Home Position Sensing |
Use Scenario: Measures partial or full depression of manual clutch or brake pedal in commercial vehicles. IC Role / Device Role / Timing Role: Mounted on pedal arm; detects magnet displacement relative to fixed Hall IC on chassis bracket. Use Value: ±40 G BOP allows precise actuation at 1–2 mm air gap; hysteresis (17.5 G typ) prevents chatter near release point. | Use Scenario: Identifies wiper blade rest position at base of windshield for park control. IC Role / Device Role / Timing Role: Installed in wiper motor housing; activated by magnet embedded in linkage at home position. Use Value: AEC-Q100 qualification and 165°C junction rating ensure operation despite under-hood heat soak after engine shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Hall-effect switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| APS11700LLHALT-0SL | Same electrical specs but supplied in 7-in. reel (3,000 pcs); identical SOT23W package and Z-axis sensing. | Preferred for low-volume prototyping or small-batch production where reel size impacts inventory turnover. | Select when matching existing tape-and-reel logistics or avoiding minimum order quantity constraints of 13-in. reels. |
| APS11760LLHALX-0SL | X-axis (horizontal) magnetic sensing instead of Z-axis; otherwise identical supply current, thresholds, and protection. | Required when magnet is mounted parallel to PCB surface (e.g., side-actuated levers or rotary encoders). | Choose only when mechanical layout mandates horizontal field detection; not interchangeable without magnet repositioning. |
Compared with APS11700LLHALX-0SL, the -0SLT variant offers identical performance in a smaller reel format for flexibility, while the APS11760LLHALX-0SL shifts sensing orientation to support orthogonal mechanical integration - neither is pin-compatible nor functionally substitutable without redesign.
Availability
APS11700LLHALX-0SL is available at Aetrix Electronics and suitable for automotive PRNDL sensing, trunk/lid status monitoring, and clutch/brake position feedback requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for APS11700LLHALX-0SL 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 global leader in precision motion control and energy-efficient power solutions, specializing in Hall-effect sensors, motor drivers, and current sensors for automotive and industrial markets.
The APS11700 family was developed as a micropower, AEC-Q100-qualified Hall switch platform targeting safety-critical automotive position sensing - especially gear selectors, pedal position, and closure detection - with built-in functional safety support for ASIL A integration.
FAQ
What is the magnetic sensing axis orientation for APS11700LLHALX-0SL?
The APS11700LLHALX-0SL uses a planar Hall element with Z-axis sensitivity - meaning it responds to magnetic flux perpendicular to the branded face of the SOT23W package. This configuration is optimized for magnets mounted directly above the IC, making it ideal for linear position detection in gear selectors and lid switches. The APS11700LLHALX-0SL does not sense fields parallel to the PCB surface.
Does APS11700LLHALX-0SL require an external pull-up resistor?
Yes, APS11700LLHALX-0SL has an open-drain output and requires an external pull-up resistor to define the high-state voltage level. A value ≤20 kΩ is recommended to maintain VOUT > VPULL-UP/2 during power-on due to IOUTOFF(PO) leakage. Pull-up voltage may range up to 24 V, enabling interface with 3.3 V, 5 V, or 12 V logic domains without level-shifting circuitry.
What is the maximum allowable supply voltage transient for APS11700LLHALX-0SL?
The APS11700LLHALX-0SL is rated for 40 V load-dump transients per AEC-Q100, with internal zener clamping protecting the VCC rail. Reverse-battery protection extends to –18 V, and the device survives ±11 kV HBM ESD events. These ratings are validated under automotive test conditions and do not require external TVS diodes in standard 12 V/24 V battery-connected applications.
How does the micropower operation of APS11700LLHALX-0SL affect response time?
The APS11700LLHALX-0SL samples magnetic fields only during its 50 µs awake window every 160 ms, resulting in a maximum update rate of ~6.25 Hz. Output state changes occur only on the falling edge of the timing pulse. This architecture reduces average current to 6 µA but introduces latency - the worst-case delay from field change to output update is one full period (160 ms). For APS11700LLHALX-0SL, this trade-off is intentional for battery-sensitive automotive subsystems.
Is APS11700LLHALX-0SL qualified for functional safety applications?
Yes, APS11700LLHALX-0SL is developed as a hardware Safety Element out of Context (SEooC) with ASIL A capability per ISO 26262 (pending final confirmation). It includes diagnostic features such as undervoltage lockout and is supported by Allegro's A2-SIL™ safety documentation. When integrated per the safety manual and datasheet, APS11700LLHALX-0SL can be used in automotive safety-related systems like transmission position monitoring.
APS11700LLHALX-0SL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Allegro MicroSystems
- Series:
- -
- Package/Case:
- SOT-23W
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Hall Effect Switch
- Output Type:
- Analog
- Actuator Material:
- Magnet
- Termination Style:
- -
- Frequency:
- -
- Voltage - Supply:
- 3.3V ~ 24V
- Must Operate:
- ±4mT
- Must Release:
- ±2.25mT
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
APS11700LLHALX-0SL FAQ
1.How can I place an order for APS11700LLHALX-0SL through Aetrix?
Please submit a Request for Quotation (RFQ) for APS11700LLHALX-0SL 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 APS11700LLHALX-0SL reliable?
The price and inventory of APS11700LLHALX-0SL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for APS11700LLHALX-0SL is usually 5 days.
3.What payment methods are accepted for APS11700LLHALX-0SL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for APS11700LLHALX-0SL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for APS11700LLHALX-0SL?
APS11700LLHALX-0SL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your APS11700LLHALX-0SL 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 APS11700LLHALX-0SL?
For technical support, including APS11700LLHALX-0SL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your APS11700LLHALX-0SL requirements.
6.How does Aetrix verify that APS11700LLHALX-0SL is sourced from the original manufacturer or authorized distributors?
All APS11700LLHALX-0SL 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 APS11700LLHALX-0SL meets industry standards.
7.What is the process for return or replacement of APS11700LLHALX-0SL?
All APS11700LLHALX-0SL units undergo pre-shipment inspection (PSI). If there is an issue with APS11700LLHALX-0SL, 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 APS11700LLHALX-0SL part is unused and in its original packaging.
Return procedure for APS11700LLHALX-0SL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
APS11700LLHALX-0SL Tags
-
HS-3511-02-0300
PIC GmbH
-
ATS19480LSNBTN
Allegro MicroSystems
-
55100-2M-02-A
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55100-3M-02-A
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55100-3M-03-A
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55100-3H-04-A
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55140-3H-02-A
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55100-AP-02-A
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