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Diodes Incorporated AH180-WG-7-P
- Part No.:
- AH180-WG-7-P
- Manufacturer:
- Diodes Incorporated
- Category:
- Switches (Solid State)
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AH180-WG-7-P.pdf
- Description:
- MAGNETIC SWITCH OMNIPOLAR SC59
- Quantity:
- Payment:
- Shipping:
Inventory:1,360
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Product details
Overview
AH180-WG-7-P from Diodes Incorporated is an obsolete micropower omnipolar Hall-effect sensor switch in SC59 (SOT23) package, operating from 2.5V to 5.5V, consuming only 8–24 µA average supply current at 3V, with ±40–60 Gauss operate point and 15 Gauss hysteresis, used for cover detection in clam-shell phones and notebook PCs.
For engineers reviewing the AH180-WG-7-P datasheet, AH180-WG-7-P pinout, AH180-WG-7-P application, or AH180-WG-7-P equivalent, key selection criteria include magnetic operate/release thresholds, open-drain output drive capability, ultra-low quiescent power, temperature stability across –40°C to +85°C, and SC59 footprint compatibility.
Technical Context
The AH180-WG-7-P uses dual Hall plates and chopper-stabilized architecture to eliminate offset drift and ensure stable switching over temperature and supply voltage. Its latch-free, omnipolar response activates on either north or south pole exposure above Bop (±40–60 G), releasing below Brp (±10–30 G).
It features a single open-drain OUTPUT pin pulled low during activation, requiring external pull-up (10kΩ–100kΩ); internal power management enables 75–125 µs wake-up time and 75–125 ms sampling period, with <0.1 µA off-state leakage and 0.1–0.3 V output saturation voltage at 1 mA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5V to 5.5V - supports single-cell Li-ion and 3.3V/5V logic rails without regulation. |
| Average Supply Current | 8–24 µA at 3V - enables multi-year battery life in portable cover-switch applications. |
| Operate Point (Bop) | ±40–60 Gauss - reliably triggers with small neodymium magnets at typical air gaps (1–3 mm). |
| Hysteresis (Bhy) | 15 Gauss minimum - prevents chatter near threshold under vibration or field fluctuation. |
| Output Type | Open-drain - allows flexible pull-up to any compatible rail (e.g., 1.8V, 3.3V, 5V) and wired-OR interfacing. |
| Operating Temperature | –40°C to +85°C - validated for consumer handheld and industrial ambient environments. |
| ESD Robustness | >6 kV HBM - withstands handling and assembly without external protection diodes. |
Pinout & Package
SC59 package (commonly known as SOT23 in Asia), 3-pin surface-mount, 2.8 mm × 2.9 mm × 1.1 mm body, matte tin-plated leads, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: VDD | Power supply input | Accepts 2.5–5.5V; internal regulator supplies bias to Hall plates and logic; decoupling capacitor (10–100 nF) required. |
| 2: GND | Ground reference | Common return for supply and output stage; must be low-impedance connection to minimize noise coupling. |
| 3: OUTPUT | Open-drain output | Sinks up to 1 mA when active (low); floats when inactive; requires external pull-up resistor (10–100 kΩ). |
Key Features
| Feature | Design Value |
|---|---|
| Omnipolar magnetic sensing | Detects either north or south pole - eliminates magnet orientation constraints in mechanical assemblies. |
| Chopper-stabilized architecture | Reduces thermal drift of Bop/Brp to <±5 G over –40°C to +85°C - ensures consistent actuation across temperature. |
| Ultra-low power operation | 24 µW typical at 3V - extends battery life in always-on cover-sense functions without duty cycling. |
| RF noise immunity | Validated against common cellular and Wi-Fi band interference - prevents false triggering in noisy RF environments. |
| Green / RoHS / Halogen-free | Meets EU RoHS 3 (2015/863/EU), <900 ppm Br+Cl, <1000 ppm Sb - compliant for global consumer product shipments. |
Applications
| Cover Switch in Clam-Shell Phones | Cover Switch in Notebook PCs |
|---|---|
|
Use Scenario: Detect lid open/close state in flip-style mobile phones to enable sleep/wake transitions. IC Role / Device Role / Timing Role: Hall-effect proximity sensor providing digital ON/OFF status via open-drain output. Use Value: Eliminates mechanical switches prone to wear; operates reliably after >100,000 actuations with no contact bounce. |
Use Scenario: Monitor clamshell lid position in ultraportable notebooks to suspend/resume system activity. IC Role / Device Role / Timing Role: Low-power magnetic switch interfaced to EC or PMIC for system-level power state control. Use Value: Draws <24 µA continuously - contributes negligibly to standby current budget while enabling instant wake. |
| Contactless Switch in PDAs | Smart Cover Detection in Tablets |
|
Use Scenario: Sense docking cover attachment/detachment on legacy PDA devices for accessory mode activation. IC Role / Device Role / Timing Role: Omnipolar Hall switch driving GPIO interrupt line to application processor. Use Value: Tolerates magnet misalignment during cover closure; hysteresis prevents oscillation during slow lid motion. |
Use Scenario: Enable/disable keyboard backlight or auto-rotate function based on smart folio cover position. IC Role / Device Role / Timing Role: Magnetic presence detector with fast 125 µs wake-up ensuring responsive user interaction. Use Value: Integrates into tight 0.8 mm board height constraints using SC59 footprint; no external passive components needed beyond pull-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar omnipolar Hall-effect switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AL33201ELTTR | Higher supply current (40 µA avg), tighter Bop tolerance (±35–55 G), same SC59 package | Requires stronger magnet or smaller air gap for reliable actuation | Prefer where higher ESD rating (8 kV HBM) and AEC-Q100 qualification are required |
| TMAG5170AHQDBVR | 3-axis linear Hall sensor (not switch), SPI interface, 1.71–3.6V supply, 1.2 µA sleep current | Delivers analog field strength data, not binary ON/OFF - requires firmware interpretation | Choose when programmable thresholds, diagnostics, or directional sensing are needed instead of simple proximity |
Compared with AL33201ELTTR and TMAG5170AHQDBVR, the AH180-WG-7-P delivers lowest power consumption and simplest integration for fixed-threshold cover detection, but lacks programmability or automotive qualification - best suited for cost-sensitive, high-volume consumer designs where magnetic environment is well-controlled.
Availability
AH180-WG-7-P is available at Aetrix Electronics and suitable for clam-shell phone cover detection, notebook lid sensing, PDA docking interface, and smart tablet folio applications requiring stable component supply despite end-of-life status.
Supply support for AH180-WG-7-P 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 ICs, specializing in high-performance, energy-efficient solutions for consumer, industrial, and computing markets.
The AH180 belongs to Diodes' Hall-effect sensor switch product line, designed specifically for ultra-low-power, contactless position sensing in portable electronics where battery life and mechanical reliability are critical.
FAQ
Is AH180-WG-7-P still in production?
No - Diodes Incorporated has marked AH180-WG-7-P as obsolete and discontinued per DS31023 Rev. 20-2 (July 2020). Aetrix Electronics maintains limited legacy stock for design continuity and last-time buy support, with full traceability and documentation.
What is the correct pull-up resistor value for the OUTPUT pin?
The recommended pull-up resistor is 10 kΩ to 100 kΩ, connected between OUTPUT and the system I/O rail (e.g., 3.3V). Lower values improve rise time but increase static current; 47 kΩ is commonly used to balance speed and power in battery-powered systems.
Can AH180-WG-7-P operate from a 1.8V supply?
No - the absolute minimum supply voltage is 2.5V per datasheet specifications. Operation below 2.5V risks undefined behavior, failure to sample magnetic field, or non-functional output; a voltage booster or alternative sensor is required for 1.8V systems.
How does the chopper stabilization improve performance?
Chopper stabilization alternately samples and cancels offset voltage in the Hall amplifier chain, reducing temperature-induced drift of Bop and Brp to less than ±5 Gauss over –40°C to +85°C - ensuring consistent magnetic trip points without calibration.
AH180-WG-7-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Omnipolar Switch
- Technology:
- Hall Effect
- Polarization:
- North Pole, South Pole
- Sensing Range:
- ±6mT Trip, ±1mT Release
- Test Condition:
- 25°C
- Voltage - Supply:
- 2.5V ~ 5.5V
- Current - Supply (Max):
- 16µA
- Current - Output (Max):
- -
- Output Type:
- Open Drain
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-59-3
AH180-WG-7-P FAQ
1.How can I place an order for AH180-WG-7-P through Aetrix?
Please submit a Request for Quotation (RFQ) for AH180-WG-7-P 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 AH180-WG-7-P reliable?
The price and inventory of AH180-WG-7-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AH180-WG-7-P is usually 5 days.
3.What payment methods are accepted for AH180-WG-7-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AH180-WG-7-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AH180-WG-7-P?
AH180-WG-7-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AH180-WG-7-P 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 AH180-WG-7-P?
For technical support, including AH180-WG-7-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AH180-WG-7-P requirements.
6.How does Aetrix verify that AH180-WG-7-P is sourced from the original manufacturer or authorized distributors?
All AH180-WG-7-P 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 AH180-WG-7-P meets industry standards.
7.What is the process for return or replacement of AH180-WG-7-P?
All AH180-WG-7-P units undergo pre-shipment inspection (PSI). If there is an issue with AH180-WG-7-P, 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 AH180-WG-7-P part is unused and in its original packaging.
Return procedure for AH180-WG-7-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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