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Home > Products > Sensors, Transducers > Magnetic Sensors > Switches (Solid State)

Diodes Incorporated AH3562Q-P-B

Name: AH3562Q-P-B
Brand: Diodes Incorporated
SKU: AH3562Q-P-B
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AH3562Q-P-B

Manufacturer:: Diodes Incorporated

Category:: Switches (Solid State)

Package:: 3-SIP

Datasheet:: AH3562Q-P-B.pdf

Description:: MAGNETIC SWITCH OMNIPOLAR 3SIP

Quantity:: RFQ Add To RFQ list

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Inventory:4,167

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Product details

Overview

AH3562Q-P-B from Diodes Incorporated is an AEC-Q100 qualified automotive Hall effect omnipolar switch IC in SIP-3 (Bulk Pack) package, operating from 3.0V to 28V supply, with ±20G operate point and ±10G release point, chopper-stabilized architecture, and open-drain output-used for seatbelt buckle detection, gear position sensing, and door/trunk closure monitoring in harsh automotive environments.

For engineers reviewing the AH3562Q-P-B datasheet, AH3562Q-P-B pinout, AH3562Q-P-B application, or AH3562Q-P-B equivalent, this device delivers high-voltage tolerance, robust ESD immunity (>8kV HBM), wide temperature operation (–40°C to +150°C), and magnetic hysteresis of 10G typical-critical for reliable contactless switching in safety-critical vehicle subsystems.

Technical Context

The AH3562Q-P-B implements a chopper-stabilized Hall sensor with dynamic offset cancellation, delivering stable magnetic thresholds across –40°C to +150°C. Its internal bandgap regulator supplies temperature-compensated bias to analog blocks, minimizing BOP/BRP drift over voltage and temperature.

It features reverse-blocking diode protection, zener clamps on VDD and OUTPUT pins, and output current limiting (30–55mA). The single open-drain output switches low when |B| exceeds BOP (±20G typ) and releases only when |B| falls below BRP (±10G typ), providing noise-immune digital position sensing without external components.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	3.0V to 28V - supports direct battery connection in 12V/24V automotive systems without external regulation
Operate Point (BOP)	±20G typical - enables reliable actuation with small magnets at air gaps up to 3mm in seatbelt or gear position sensors
Release Point (BRP)	±10G typical - provides 10G hysteresis to prevent chatter near threshold in vibrating environments
Output Type	Open-drain, 60mA continuous - compatible with standard pull-up resistors and interfaces directly to MCU GPIO or logic inputs
ESD Robustness	HBM >8kV, CDM >2kV - meets automotive board-level ESD requirements without additional protection circuitry
Operating Temperature	–40°C to +150°C - qualified for under-hood, transmission, and HVAC actuator locations
Power-on Time	10µs typical - ensures fast system response after ignition or wake-up events

Pinout & Package

Package: SIP-3 (Bulk Pack), straight-lead, RoHS-compliant, halogen-free "Green" package with 14.5mm body length and 3.0mm width.

Pin/Terminal	Circuit Role	Design Meaning
1	VDD	Positive supply input - accepts 3.0V–28V with integrated reverse-blocking diode and zener clamp (32V abs max)
2	GND	Ground reference - common return path for internal circuits and output stage
3	OUTPUT	Open-drain output - sinks up to 55mA; requires external pull-up; clamped to 28V zener for overvoltage protection

Key Features

Feature	Design Value
Omnipolar magnetic sensitivity	Responds to either north or south pole - eliminates magnet orientation constraints in assembly-sensitive applications like seatbelt buckles
Chopper-stabilized architecture	Reduces thermal drift of BOP/BRP to ±10G over full temperature range - ensures consistent switching across engine bay thermal cycles
Integrated protection	Reverse-blocking diode + VDD/output zener clamps - withstands load dump (ISO 7637-2 Pulse 5a) and ESD without external TVS
High-voltage operation	3.0V–28V supply range - powers directly from unregulated vehicle battery rails, reducing BOM count vs. LDO-based solutions
Automotive qualification	AEC-Q100 Grade 0 - validated for 150°C junction operation and 1000hr HTOL stress, supporting safety-critical cabin and powertrain functions

Applications

Seatbelt Buckle Detection

Gear Position Sensing

Use Scenario: Detect buckle insertion/removal in driver/passenger seats to enable airbag control and occupant classification.

IC Role / Device Role / Timing Role: Omnipolar Hall switch providing latched ON/OFF state based on ferrous striker proximity.

Use Value: Eliminates mechanical switches prone to wear; ±20G sensitivity enables use with compact magnets inside tight buckle housings.

Use Scenario: Identify PRNDL position in automatic transmissions via rotating cam or lever-mounted magnets.

IC Role / Device Role / Timing Role: Digital position sensor interfacing to transmission control module (TCM) via open-drain signal line.

Use Value: 10µs startup time ensures immediate gear reporting at ignition; 150°C rating supports placement near hot gearbox housing.

Door/Trunk Closure Monitoring

HVAC Actuator Position Feedback

Use Scenario: Confirm door or trunk latch engagement status for anti-pinch, lighting, and alarm systems.

IC Role / Device Role / Timing Role: Proximity detector mounted on pillar or latch assembly, triggered by embedded magnet in striker plate.

Use Value: ±10G hysteresis prevents false triggers from vibration during vehicle motion; SIP-3 package fits narrow door frame cavities.

Use Scenario: Monitor blend door or mode door position in climate control systems to regulate airflow distribution.

IC Role / Device Role / Timing Role: Non-contact position feedback element in stepper motor-driven HVAC actuators.

Use Value: Chopper stabilization maintains accuracy despite thermal gradients across dash; 28V tolerance accommodates 24V commercial vehicle HVAC modules.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Hall effect omnipolar switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Melexis US1881EUA-ABA-000-RE	Lower supply range (2.7–24V); BOP/BRP ±15G/±7G; no reverse-blocking diode	Lacks integrated reverse polarity protection - requires external diode in 24V truck applications	Select if cost-sensitive and reverse protection is already implemented at system level
Allegro A1174LUA-T	Wider BOP tolerance (±25G min); no zener clamp on output; 3.5–24V supply	Higher magnetic threshold variation increases calibration effort in tight-gap designs like seatbelt sensors	Prefer where higher immunity to stray fields is needed, but verify BRP margin against mechanical tolerances

Compared with US1881EUA-ABA-000-RE and A1174LUA-T, the AH3562Q-P-B uniquely combines 28V absolute max supply, integrated reverse blocking, and ±20G/±10G thresholds - making it optimal for first-fit automotive modules requiring minimal external protection and precise gap tolerance.

Availability

AH3562Q-P-B is available at Aetrix Electronics and suitable for automotive seat occupancy systems, transmission position monitoring, door/trunk closure detection, and HVAC actuator feedback requiring stable component supply across extended temperature and voltage ranges.

Supply support for AH3562Q-P-B 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

Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal devices, with broad automotive qualification capabilities and ISO/TS 16949 certified manufacturing.

The AH3562Q belongs to Diodes' AEC-Q100 qualified Hall effect sensor product line, engineered specifically for robust, maintenance-free position sensing in automotive cabin, powertrain, and chassis subsystems.

FAQ

What is the maximum allowable supply voltage transient for AH3562Q-P-B?

The absolute maximum VDD is 32V as a transient stress rating-not for continuous operation. Functional operation must remain within 3.0V–28V. The integrated zener clamp and reverse-blocking diode protect against ISO 7637-2 Pulse 1 (–150V) and Pulse 5a (120V load dump), provided external bulk capacitance (≥10nF) is used per datasheet recommendation.

Does AH3562Q-P-B require an external capacitor on VDD?

Yes-a 10nF to 100nF ceramic capacitor between VDD and GND is required for power stabilization and RF noise immunity, as specified in the Typical Applications Circuit. Omitting CIN risks erratic switching due to supply ripple or EMI coupling, especially in high-noise environments like engine compartments or motor-driven actuators.

Can AH3562Q-P-B replace a bipolar Hall switch in existing designs?

No-AH3562Q-P-B is omnipolar and responds to both magnetic poles, whereas bipolar switches require alternating pole sequences. Replacing a bipolar device would require revalidation of magnet orientation, air gap, and hysteresis behavior; its ±20G/±10G thresholds also differ from typical bipolar BOP/BRP values, affecting mechanical design margins.

Is the SIP-3 (Bulk Pack) variant pin-compatible with the SOT23 version?

Yes-both AH3562Q-SA-7 (SOT23) and AH3562Q-P-B (SIP-3 Bulk Pack) share identical pin 1 (VDD), pin 2 (GND), pin 3 (OUTPUT) assignments and electrical specifications. However, PCB layout, thermal derating (550mW vs. 230mW), and reflow profile differ significantly due to package geometry and leadform.

AH3562Q-P-B Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 3-SIP

Packaging:: Bulk

Product Status:: Obsolete

Function:: Omnipolar Switch

Technology:: Hall Effect

Polarization:: North Pole, South Pole

Sensing Range:: ±3mT Trip, ±0.2mT Release

Test Condition:: -40°C ~ 150°C

Voltage - Supply:: 3V ~ 28V

Current - Supply (Max):: 4mA

Current - Output (Max):: 55mA

Output Type:: Open Drain

Features:: Temperature Compensated

Operating Temperature:: -40°C ~ 150°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Through Hole

Supplier Device Package:: 3-SIP

AH3562Q-P-B FAQ

1.How can I place an order for AH3562Q-P-B through Aetrix?

Please submit a Request for Quotation (RFQ) for AH3562Q-P-B 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 AH3562Q-P-B reliable?

The price and inventory of AH3562Q-P-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AH3562Q-P-B is usually 5 days.

3.What payment methods are accepted for AH3562Q-P-B?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AH3562Q-P-B transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AH3562Q-P-B?

AH3562Q-P-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AH3562Q-P-B 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 AH3562Q-P-B?

For technical support, including AH3562Q-P-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AH3562Q-P-B requirements.

6.How does Aetrix verify that AH3562Q-P-B is sourced from the original manufacturer or authorized distributors?

All AH3562Q-P-B 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 AH3562Q-P-B meets industry standards.

7.What is the process for return or replacement of AH3562Q-P-B?

All AH3562Q-P-B units undergo pre-shipment inspection (PSI). If there is an issue with AH3562Q-P-B, 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 AH3562Q-P-B part is unused and in its original packaging.

Return procedure for AH3562Q-P-B:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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