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Diodes Incorporated AH180-PL-A
- Part No.:
- AH180-PL-A
- Manufacturer:
- Diodes Incorporated
- Category:
- Switches (Solid State)
- Package:
- 3-SIP, Formed Leads
- Datasheet:
-
AH180-PL-A.pdf
- Description:
- MAGNETIC SWITCH OMNIPOLAR 3SIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,662
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Product details
Overview
AH180-PL-A from Diodes Incorporated is a micropower omnipolar Hall-effect sensor switch in SIP-3L package, operating from 2.5V to 5.5V with 24μW typical supply power at 3V, ±40–60 G magnetic operate point, and open-drain output for cover detection in clam-shell phones and notebook PCs.
For engineers reviewing the AH180-PL-A datasheet, AH180-PL-A pinout, AH180-PL-A application, or AH180-PL-A equivalent, key selection criteria include magnetic sensitivity (Bop/Brp), ultra-low quiescent current, SIP-3L footprint compatibility, RoHS-compliant green molding compound, and -40°C to +85°C industrial temperature range.
Technical Context
The AH180 employs dual Hall plates and chopper-stabilized architecture to cancel offset drift and ensure stable switching across temperature and supply voltage variations. Its latch-free design responds to either north or south magnetic pole with hysteresis of ≥15 G to prevent chatter near threshold.
It features a single open-drain output requiring external pull-up (10–100 kΩ), supports wake-up time ≤125 μs and sampling period ≤125 ms, and delivers <0.3 V output-on voltage at 1 mA load while maintaining <1 μA leakage in off-state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5 V to 5.5 V - enables direct integration into 3.3 V and 5 V portable logic rails without regulation. |
| Typical Supply Current | 8–24 μA - ensures multi-year battery life in always-on cover-sense applications. |
| Operate Point (Bop) | ±40–60 G - detects standard neodymium magnets at 2–4 mm air gap in clamshell hinge designs. |
| Hysteresis (Bhy) | ≥15 G - prevents false toggling during slow or oscillating magnetic field transitions. |
| Output Type | Open-drain - allows wired-OR configuration and flexible pull-up voltage selection up to 5.5 V. |
| Operating Temperature | -40°C to +85°C - supports full industrial ambient range in consumer handheld and embedded devices. |
| ESD Rating (HBM) | 6 kV - protects against handling damage during SMT assembly and end-user mechanical stress. |
Pinout & Package
AH180-PL-A uses the SIP-3L (Single In-line Package, 3-pin) with gull-wing leads, 2.00 mm × 1.15 mm body, 0.51 mm nominal height, and branded top surface indicating active area location. Pin 1 = Vdd, Pin 2 = GND, Pin 3 = Output (open-drain).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Vdd) | Power supply input | Accepts 2.5–5.5 V DC; internal regulator not required; decoupling capacitor (10–100 nF) recommended at this pin. |
| 2 (GND) | Ground reference | Return path for Hall sensor core and output driver; must be low-impedance connection to system ground plane. |
| 3 (Output) | Open-drain digital output | Sinks current when active (low); requires external pull-up resistor (10–100 kΩ) to define logic-high level and noise margin. |
Key Features
| Feature | Design Value |
|---|---|
| Omnipolar magnetic sensing | Detects both north and south poles - eliminates magnet orientation constraints in mechanical hinge assemblies. |
| Chopper-stabilized architecture | Reduces thermal drift of Bop/Brp to <±10% over -40°C to +85°C - ensures consistent actuation across environmental conditions. |
| Green molding compound | Halogen-free, RoHS-compliant (no Br/Sb) - meets EU Directive 2002/95/EC and IPC-1752 material declaration requirements. |
| Low-power sampling mode | Average current ≤24 μA at 3 V - extends battery runtime in always-monitoring lid-open/close detection circuits. |
| RF noise immunity | Validated performance in presence of GSM/Bluetooth RF fields - avoids spurious triggering in cellular and wireless-enabled devices. |
Applications
| Cover Switch in Clam-Shell Phones | Cover Switch in Notebook PCs |
|---|---|
Use Scenario: Detects flip-open status of dual-hinge mobile phone covers using embedded magnet and PCB-mounted AH180-PL-A. IC Role / Device Role / Timing Role: Digital proximity sensor providing TTL-compatible enable signal to suspend/resume baseband processor upon lid motion. Use Value: Enables instant sleep/wake transition with <125 μs response latency and zero standby current draw beyond sensor's 24 μW baseline. | Use Scenario: Monitors lid closure state in ultraportable notebooks to trigger display backlight disable and system suspend on close. IC Role / Device Role / Timing Role: Magnetic presence detector interfacing directly to EC (Embedded Controller) GPIO with open-drain logic-level output. Use Value: Eliminates mechanical microswitch wear-out and supports IPX1-rated sealed chassis designs due to contactless operation. |
| Contactless Switch in Consumer Remotes | Battery-Powered IoT Sensor Node |
Use Scenario: Replaces tactile buttons in premium IR remotes where magnet-actuated slider provides haptic feedback without physical contact. IC Role / Device Role / Timing Role: Low-voltage magnetic switch driving MCU interrupt line to initiate command transmission sequence. Use Value: Achieves >5-year battery life on CR2032 using 24 μW average consumption and eliminates button bounce correction firmware overhead. | Use Scenario: Detects door/window opening in battery-powered smart home sensors deployed for 10+ year field life. IC Role / Device Role / Timing Role: Event-triggered wake source for ultra-low-power MCU (e.g., ARM Cortex-M0+) entering active mode only on magnetic transition. Use Value: Reduces system-wide average current to sub-μA range by enabling duty-cycled operation with precise magnetic edge detection. |
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 supply current (75 μA typ.), wider Bop range (±25–75 G), SC59 package only | Requires higher drive capability; less suitable for coin-cell-powered devices | Select if broader magnetic tolerance or legacy SC59 footprint is required |
| MELEXIS US5881LUA-AAA-000-REEL | Lower Bop (±15–35 G), DFN1616-3 package, 1.6–5.5 V supply | Better suited for weak-field detection but lacks SIP-3L leaded option for through-hole prototyping | Select for space-constrained PCBs needing smallest footprint and lowest operate point |
Compared with A3212LLHLT-T and US5881LUA-AAA-000-REEL, AH180-PL-A uniquely balances ultra-low power (24 μW), SIP-3L through-hole compatibility, and robust 6 kV HBM ESD rating-making it optimal for cost-sensitive, high-volume clamshell and notebook cover-sense designs requiring long-term reliability and easy assembly.
Availability
AH180-PL-A is available at Aetrix Electronics and suitable for cover-switch detection in clam-shell phones, notebook PC lid sensing, and contactless consumer remote controls requiring stable component supply, RoHS compliance, and SIP-3L leaded packaging.
Supply support for AH180-PL-A 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, energy-efficient components for consumer, computing, and industrial markets.
The AH180 belongs to Diodes' Hall-effect sensor product line, engineered specifically for ultra-low-power, contactless position and proximity detection in battery-operated portable electronics.
FAQ
What is the magnetic polarity requirement for AH180-PL-A activation?
AH180-PL-A activates with either north or south magnetic pole orientation-no magnet polarity labeling or mounting direction constraints are needed. Its omnipolar design uses dual Hall plates and chopper stabilization to detect field direction-independent flux magnitude exceeding ±40–60 G, making it ideal for mechanically agnostic hinge placements.
Can AH180-PL-A operate directly from a 3.3 V MCU I/O rail?
Yes-AH180-PL-A operates over 2.5 V to 5.5 V, fully compatible with standard 3.3 V logic supplies. Its open-drain output can interface directly to 3.3 V or 5 V pull-up rails, and its 24 μW typical supply current at 3 V imposes negligible load on MCU power domains, supporting shared LDO usage in compact portable designs.
Is external capacitance required for stable operation?
Yes-a 10 nF to 100 nF ceramic capacitor between Vdd and GND is recommended per the datasheet to suppress supply noise and enhance RF immunity. This capacitor stabilizes internal biasing during magnetic transitions and prevents false triggering in electrically noisy environments such as cellular handsets or USB-connected peripherals.
Does AH180-PL-A support automatic power cycling or sleep modes?
No-it operates continuously in a low-power sampling mode with fixed 75–125 ms period and <125 μs awake time. There is no enable/disable pin or software-controlled sleep mode; power management is achieved solely via its intrinsic 24 μW average current draw, making it inherently suitable for always-on cover-detection without external control logic.
AH180-PL-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 3-SIP, Formed Leads
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- 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:
- Through Hole
- Supplier Device Package:
- 3-SIP
AH180-PL-A FAQ
1.How can I place an order for AH180-PL-A through Aetrix?
Please submit a Request for Quotation (RFQ) for AH180-PL-A 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-PL-A reliable?
The price and inventory of AH180-PL-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AH180-PL-A is usually 5 days.
3.What payment methods are accepted for AH180-PL-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AH180-PL-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AH180-PL-A?
AH180-PL-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AH180-PL-A 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-PL-A?
For technical support, including AH180-PL-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AH180-PL-A requirements.
6.How does Aetrix verify that AH180-PL-A is sourced from the original manufacturer or authorized distributors?
All AH180-PL-A 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-PL-A meets industry standards.
7.What is the process for return or replacement of AH180-PL-A?
All AH180-PL-A units undergo pre-shipment inspection (PSI). If there is an issue with AH180-PL-A, 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-PL-A part is unused and in its original packaging.
Return procedure for AH180-PL-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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