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Diodes Incorporated AH180N-WG-7
- Part No.:
- AH180N-WG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Switches (Solid State)
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AH180N-WG-7.pdf
- Description:
- MAGNETIC SWITCH OMNIPOL SC59-3
- Quantity:
- Payment:
- Shipping:
Inventory:117,517
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Product details
Overview
AH180N-WG-7 from Diodes Incorporated is a micropower omnipolar Hall-effect switch IC designed for magnetic sensing in portable electronics. It operates from 2.5V to 5.5V, draws only 24µA at 3V, features an open-drain output with 0.1V typical on-state voltage at 1mA, and switches reliably with either North or South magnetic poles - used in clam-shell phone cover detection and PDA on/off control.
For engineers reviewing the AH180N-WG-7 datasheet, AH180N-WG-7 pinout, AH180N-WG-7 application, or AH180N-WG-7 equivalent, key selection criteria include its 35–50 G operate point (South), -50 to -35 G operate point (North), 10–25 G release point hysteresis, -40°C to +85°C operating range, and SC59 (SOT23) package compatibility.
Technical Context
The AH180N employs dual Hall plates with chopper-stabilized architecture to cancel offset drift and ensure stable switching across temperature. Its sleep/awake logic enables ultra-low average current (8–40 µA) while maintaining 75–125 µs wake-up time and 75–125 ms sampling period.
Magnetic actuation is polarity-agnostic: Bop ranges from ±35 G to ±50 G depending on pole orientation and side of branding; Brp provides 10–25 G hysteresis to prevent chatter. Output remains latched low during valid field presence and high-impedance otherwise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5V to 5.5V - supports single-cell Li-ion and 3.3V/5V system rails without regulation. |
| Quiescent Current | 24µA at 3V - enables multi-year battery life in always-on cover-switch applications. |
| Operate Point (Bop) | ±35 G to ±50 G - detects weak magnets at >3 mm air gap in compact handheld enclosures. |
| Hysteresis (Bhy) | 10 G minimum - prevents false toggling near threshold due to mechanical vibration or field noise. |
| Output Type | Open-drain - allows flexible pull-up to any voltage ≤ VDD, simplifying interface with diverse logic families. |
| ESD Rating | HBM >6 kV - withstands handling and assembly stress without protection circuitry overhead. |
| Operating Temp | -40°C to +85°C - qualified for consumer portable equipment across global climates. |
Pinout & Package
Package: SC59 (SOT23-3), 1.3mm × 2.9mm × 1.0mm low-profile surface-mount package with lead-free, RoHS-compliant finish.
| 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. |
| 2 - GND | Ground reference | Return path for supply and output sink current; must be low-impedance for noise immunity. |
| 3 - OUTPUT | Open-drain output | Sinks up to 1mA when active; requires external pull-up resistor (10kΩ–100kΩ recommended). |
Key Features
| Feature | Design Value |
|---|---|
| Omnipolar magnetic sensing | Detects either North or South pole - eliminates magnet orientation constraints in mechanical assembly. |
| Chopper-stabilized architecture | Reduces thermal drift of Bop/Brp to <±1.5 G/°C - ensures consistent switching over full temperature range. |
| RF noise immunity | Validated against common cellular band interference - no external filtering required in smartphone designs. |
| Low-power sleep mode | 5–28 µA disable current - enables integration into always-on subsystems without compromising system standby budget. |
| Green packaging | Halogen- and antimony-free, fully RoHS 3 compliant (<900 ppm Br/Cl, <1000 ppm Sb) - meets global environmental mandates. |
Applications
| Clam-Shell Phone Cover Detection | Portable PC Display Switch |
|---|---|
|
Use Scenario: Detects lid closure in flip-style smartphones to suspend display and enter low-power mode. IC Role / Device Role / Timing Role: Magnetic proximity sensor providing digital on/off state to baseband processor interrupt line. Use Value: Enables reliable, contactless detection with <100 µs response latency and zero mechanical wear over >100,000 cycles. |
Use Scenario: Activates backlight and wakes display when laptop lid opens. IC Role / Device Role / Timing Role: Hall switch interfacing directly to EC (Embedded Controller) GPIO with open-drain pull-down behavior. Use Value: Eliminates sliding microswitches; reduces PCB space by 60% and improves IPX1 ingress resistance. |
| PDA Power-On Switch | Contactless Appliance Control |
|
Use Scenario: Turns on handheld organizer when stylus is removed from magnetic dock slot. IC Role / Device Role / Timing Role: Wake-up trigger for PMIC enable signal, initiating full system boot sequence. Use Value: Achieves sub-150 ms system wake from deep sleep using only 24 µA quiescent current. |
Use Scenario: Replaces mechanical buttons in smart home remotes and kitchen appliances. IC Role / Device Role / Timing Role: Solid-state toggle switch driving MCU input with ESD-hardened I/O. Use Value: Supports sealed front-panel designs with >1M actuation lifetime and immunity to moisture/dust ingress. |
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 |
|---|---|---|---|
| ALLEGRO A3212LLHLT-T | Higher sensitivity (Bop = ±25 G), 5V-only supply (4.5–5.5V), 100 µA typical IDD | Requires dedicated 5V rail; better for low-field detection but incompatible with 2.5V battery systems. | Select if magnet gap exceeds 4 mm and system has regulated 5V available. |
| MELEXIS US5881LUA-ABA-000-REEL | Bipolar operation only (separate Bop/Brp for N/S), 1.6–5.5V supply, 3.5 µA IDD | Cannot detect arbitrary pole orientation - requires magnet polarity alignment during assembly. | Choose when cost-per-unit is critical and mechanical design permits fixed-pole mounting. |
Compared with A3212LLHLT-T and US5881LUA-ABA-000-REEL, the AH180N-WG-7 uniquely balances ultra-low power (24 µA), wide supply range (2.5–5.5V), and true omnipolarity - making it optimal for space-constrained, battery-powered devices where magnet placement flexibility and standby current are primary constraints.
Availability
AH180N-WG-7 is available at Aetrix Electronics and suitable for clam-shell phone cover detection, portable PC display switching, and PDA power-on control requiring stable component supply and long-lifecycle support.
Supply support for AH180N-WG-7 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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
The AH180N belongs to Diodes' Hall-effect sensor product line, engineered specifically for ultra-low-power, high-reliability magnetic switching in portable consumer electronics - emphasizing robustness, small footprint, and ease of integration.
FAQ
What is the magnetic operate point tolerance over temperature?
The AH180N exhibits ±1.5 G/°C drift in operate point (Bop) across -40°C to +85°C, verified per DS32174 Rev. 5 test data. At 85°C, Bop shifts by ≤±60 G from 25°C nominal (±35–50 G), remaining within functional margin for standard NdFeB magnets at ≤3 mm gap.
Can AH180N-WG-7 drive an LED directly?
No - the open-drain output is rated for 1mA sink current maximum. Driving even a low-current LED (e.g., 2mA @ 1.8V) would exceed specification and cause excessive VOUT rise. Use a discrete N-MOSFET or bipolar transistor stage for LED loads.
Is AH180N-WG-7 pin-compatible with AH180N-WSG-7 or AH180N-ZG-7?
Yes - all three variants (SC59/WG-7, TSOT23/WSG-7, SOT553/ZG-7) share identical pinout: Pin 1 = VDD, Pin 2 = GND, Pin 3 = OUTPUT. Footprint differs, but schematic symbol and net connectivity are interchangeable.
Why is AH180N marked "Not Recommended for New Design"?
Diodes Incorporated designated AH180N as NRND in May 2018 due to introduction of next-generation successors (e.g., AH1806) with improved sensitivity and lower IDD. AH180N remains fully manufactured, stocked, and supported - ideal for legacy design refresh or cost-sensitive volume builds where spec compliance is unchanged.
AH180N-WG-7 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:
- Not For New Designs
- Function:
- Omnipolar Switch
- Technology:
- Hall Effect
- Polarization:
- North Pole, South Pole
- Sensing Range:
- ±5mT 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
AH180N-WG-7 FAQ
1.How can I place an order for AH180N-WG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AH180N-WG-7 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 AH180N-WG-7 reliable?
The price and inventory of AH180N-WG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AH180N-WG-7 is usually 5 days.
3.What payment methods are accepted for AH180N-WG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AH180N-WG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AH180N-WG-7?
AH180N-WG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AH180N-WG-7 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 AH180N-WG-7?
For technical support, including AH180N-WG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AH180N-WG-7 requirements.
6.How does Aetrix verify that AH180N-WG-7 is sourced from the original manufacturer or authorized distributors?
All AH180N-WG-7 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 AH180N-WG-7 meets industry standards.
7.What is the process for return or replacement of AH180N-WG-7?
All AH180N-WG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AH180N-WG-7, 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 AH180N-WG-7 part is unused and in its original packaging.
Return procedure for AH180N-WG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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