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Diodes Incorporated AH3582-P-B
- Part No.:
- AH3582-P-B
- Manufacturer:
- Diodes Incorporated
- Category:
- Switches (Solid State)
- Package:
- 3-SIP
- Datasheet:
-
AH3582-P-B.pdf
- Description:
- MAGNETIC SWITCH OMNIPOLAR 3SIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,168
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Product details
Overview
AH3582-P-B from Diodes Incorporated is a high-voltage, high-sensitivity Hall effect omnipolar switch IC in SIP-3 (Bulk Pack) package, operating from 3.0V to 28V supply, with ±40G typical operate point (BOP), ±25G release point (BRP), and internally pulled-up open-drain output capable of sinking up to 55mA. It enables contactless position, proximity, and level detection in industrial appliances and personal care devices.
For engineers reviewing the AH3582-P-B datasheet, AH3582-P-B pinout, AH3582-P-B application, or AH3582-P-B equivalent, this device delivers chopper-stabilized magnetic sensing with robust ESD protection (>6kV HBM), reverse-blocking diode, Zener clamps on VDD and OUTPUT, and guaranteed operation from –40°C to +125°C - critical for reliable embedded sensing in harsh environments.
Technical Context
The AH3582 employs dynamic offset cancellation via chopper stabilization at 800kHz, delivering minimal switch-point drift and superior temperature stability across –40°C to +125°C. Its bandgap-regulated internal supply ensures consistent performance over the full 3.0V–28V input range.
It features omnipolar magnetic response: either South or North pole applied to the marked side triggers output low (sinking), with hysteresis of 15G typical (9G–23G min–max) to prevent chatter. The output includes overcurrent limiting (30–55mA) and Zener clamp (28V) for fault resilience.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.0V to 28V - supports wide-input industrial power rails without external regulation |
| Operate Point (BOP) | ±40G typical - enables reliable actuation with low-strength magnets or increased air gaps |
| Release Point (BRP) | ±25G typical - provides 15G hysteresis to suppress noise-induced false triggering |
| Output Sink Current | 30–55mA - drives standard logic inputs or small relays directly without external buffer |
| Start-up Time | 10µs typical - ensures rapid system readiness after power-on, critical for real-time sensing |
| ESD Rating | >6kV HBM - withstands handling and board-level electrostatic events without protection circuitry |
| Operating Temperature | –40°C to +125°C - qualified for under-hood, motor control, and sealed-appliance environments |
Pinout & Package
Package: SIP-3 (Bulk Pack), straight-lead, 3-pin single-in-line package with 1.5mm body width, 14.5mm length, and 3.0mm height - optimized for through-hole mounting in cost-sensitive consumer and industrial assemblies.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | Power supply input with integrated reverse-blocking diode and 32V transient Zener clamp |
| 2 | GND | Ground reference for internal regulator, sensor core, and output stage |
| 3 | OUTPUT | Open-drain output with internal 10–18kΩ pull-up, 55mA current limit, and 28V Zener clamp |
Key Features
| Feature | Design Value |
|---|---|
| Omnipolar magnetic sensing | Detects either North or South pole - simplifies mechanical design by eliminating magnet polarity orientation constraints |
| Chopper-stabilized architecture | 800kHz chopping frequency eliminates offset drift - maintains BOP/BRP stability over temperature and time |
| Integrated protection elements | Reverse-blocking diode + dual Zener clamps (VDD and OUTPUT) - eliminates need for external TVS or polarity protection |
| Internally pulled-up output | 10–18kΩ resistor - reduces BOM count and PCB area vs. discrete pull-up; compatible with 3.3V/5V/24V logic systems |
| Wide operating voltage range | 3.0V–28V - operates directly from unregulated battery, rectified AC, or industrial 24V rails without LDO |
Applications
| Industrial Position Sensing | Appliance Door Detection |
|---|---|
|
Use Scenario: Monitoring linear or rotary position of actuators, valves, or conveyor components in factory automation. IC Role / Device Role / Timing Role: Omnipolar Hall switch providing digital position feedback with immunity to EMI and vibration. Use Value: Eliminates mechanical switches prone to wear; operates reliably at 125°C near motors or drives. |
Use Scenario: Detecting open/closed state of washing machine, dishwasher, or oven doors. IC Role / Device Role / Timing Role: Contactless proximity sensor interfacing directly with microcontroller GPIO. Use Value: Internal pull-up and 28V tolerance allow direct connection to 24V control bus - no level-shifting required. |
| Liquid Level Monitoring | Flow Meter Sensing |
|
Use Scenario: Measuring detergent tank or water reservoir fill level using float-mounted magnet. IC Role / Device Role / Timing Role: Threshold-triggered switch detecting magnet presence at preset liquid height. Use Value: ±40G sensitivity enables use with small, low-cost magnets - reducing overall sensor module size and cost. |
Use Scenario: Counting turbine rotations in water/gas meters via embedded magnet on impeller. IC Role / Device Role / Timing Role: High-speed magnetic pulse detector with 3.75µs response time and jitter-free output. Use Value: Chopper stabilization ensures consistent pulse timing across temperature - critical for accurate volumetric measurement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Hall effect switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AL3505-30D | Lower voltage range (2.5V–24V); ±30G BOP; no internal pull-up - requires external resistor | Suitable for lower-power battery-operated devices but lacks AH3582-P-B's 28V tolerance and integrated pull-up | Select when supply is strictly ≤24V and board space allows external pull-up; avoid for 24V+ industrial rails |
| US1881EUA-AB | Bipolar (not omnipolar); ±50G BOP; SOT-23 only; no Zener clamp on OUTPUT | Requires precise magnet polarity alignment; less robust against voltage transients on output line | Choose only if magnet orientation is fixed and system has external output protection; not drop-in for AH3582-P-B |
Compared with AL3505-30D and US1881EUA-AB, the AH3582-P-B uniquely combines 28V operation, internal pull-up, omnipolar response, and dual Zener clamps - making it the only option qualified for unregulated 24V industrial sensing where reliability, simplicity, and fault tolerance are mandatory.
Availability
AH3582-P-B is available at Aetrix Electronics and suitable for industrial position sensing, appliance door detection, liquid level monitoring, and flow meter sensing requiring stable component supply across extended temperature and voltage ranges.
Supply support for AH3582-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, application-optimized components for industrial, automotive, and consumer markets.
The AH3582 belongs to Diodes' Hall-effect sensor product line, engineered specifically for robust, maintenance-free proximity and position sensing in cost-sensitive, high-volume home and industrial appliances.
FAQ
What is the maximum continuous output sink current for AH3582-P-B?
The AH3582-P-B provides a guaranteed continuous output sink current of 30–55mA, with internal current limiting that activates above 55mA. This allows direct driving of PLC inputs, optocouplers, or small relays without external buffering, and remains stable across –40°C to +125°C ambient temperatures.
Does AH3582-P-B require an external pull-up resistor?
No. AH3582-P-B integrates a 10–18kΩ pull-up resistor on the OUTPUT pin, eliminating the need for external components. This simplifies PCB layout, reduces BOM count, and ensures compatibility with 3.3V, 5V, and 24V logic systems - confirmed in the Electrical Characteristics table (RPU parameter).
Can AH3582-P-B operate with a 3.3V supply?
Yes. AH3582-P-B is fully specified from 3.0V to 28V, including all electrical and magnetic parameters. At 3.3V, it maintains ±40G typical operate point, 10µs start-up time, and >6kV HBM ESD rating - verified across –40°C to +125°C per the Recommended Operating Conditions table.
What package type does AH3582-P-B use?
AH3582-P-B uses the SIP-3 (Bulk Pack) package: a 3-pin, straight-lead, single-in-line package with 1.5mm body width, 14.5mm length, and 3.0mm height. Pin 1 is VDD, Pin 2 is GND, and Pin 3 is OUTPUT - matching the marking "3582" on the top surface per the datasheet Marking Information section.
AH3582-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:
- ±6mT Trip, ±1mT Release
- Test Condition:
- -40°C ~ 125°C
- Voltage - Supply:
- 3V ~ 28V
- Current - Supply (Max):
- 4mA
- Current - Output (Max):
- 55mA
- Output Type:
- Push-Pull
- Features:
- Temperature Compensated
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 3-SIP
AH3582-P-B FAQ
1.How can I place an order for AH3582-P-B through Aetrix?
Please submit a Request for Quotation (RFQ) for AH3582-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 AH3582-P-B reliable?
The price and inventory of AH3582-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 AH3582-P-B is usually 5 days.
3.What payment methods are accepted for AH3582-P-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AH3582-P-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AH3582-P-B?
AH3582-P-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AH3582-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 AH3582-P-B?
For technical support, including AH3582-P-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AH3582-P-B requirements.
6.How does Aetrix verify that AH3582-P-B is sourced from the original manufacturer or authorized distributors?
All AH3582-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 AH3582-P-B meets industry standards.
7.What is the process for return or replacement of AH3582-P-B?
All AH3582-P-B units undergo pre-shipment inspection (PSI). If there is an issue with AH3582-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 AH3582-P-B part is unused and in its original packaging.
Return procedure for AH3582-P-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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