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Diodes Incorporated AH180-PL-A-S
- Part No.:
- AH180-PL-A-S
- Manufacturer:
- Diodes Incorporated
- Category:
- Switches (Solid State)
- Package:
- 3-SIP, Formed Leads
- Datasheet:
-
AH180-PL-A-S.pdf
- Description:
- MAGNETIC SWITCH OMNIPOLAR 3SIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,701
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Product details
Overview
AH180-PL-A-S 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, featuring open-drain output, ±40–60 Gauss operate point, and -40°C to +85°C temperature range-used for clam-shell phone cover detection and notebook lid sensing.
For engineers reviewing the AH180-PL-A-S datasheet, AH180-PL-A-S pinout, AH180-PL-A-S application, or AH180-PL-A-S equivalent, key selection criteria include magnetic operate/release points, ultra-low quiescent current, SIP-3L mechanical compatibility, and RoHS-compliant green molding compound.
Technical Context
The AH180 employs dual Hall plates and chopper-stabilized architecture to cancel offset drift and ensure stable switching across temperature. Its omnipolar response enables activation by either north or south magnetic pole orientation without polarity dependency.
Internal latch logic maintains output state until magnetic field drops below release point (Brp), delivering hysteresis of ≥15 Gauss to prevent chatter. The device operates in continuous sampling mode with 75–125 μs awake time and 75–125 ms period, supporting reliable low-duty-cycle battery-powered operation.
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. |
| Average Supply Current | 8–24 μA - enables multi-year battery life in portable cover-switch applications. |
| Operate Point (Bop) | ±40 to ±60 Gauss - ensures reliable actuation with common neodymium magnets at 1–3 mm air gap. |
| Hysteresis (Bhy) | ≥15 Gauss - prevents output oscillation near threshold under vibration or field fluctuation. |
| Output Type | Open-drain - allows flexible pull-up to any voltage ≤ Vdd and wired-OR interfacing. |
| ESD Rating (HBM) | 6 kV - meets IEC 61000-4-2 Level 4 for robust handling in assembly and end-use environments. |
| Operating Temperature | -40°C to +85°C - qualified for consumer electronics enclosure environments including laptop hinges and mobile phone folds. |
Pinout & Package
The AH180-PL-A-S is housed in a lead-free SIP-3L (Single In-line Package, 3-pin) with gull-wing leads, 2.00 mm × 1.15 mm body, 0.51 mm nominal thickness, and branded top surface marking "180".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vdd | Power supply input - must be decoupled with 10–100 nF capacitor for noise immunity. |
| 2 | GND | Ground reference - connects to system ground plane; critical for stable Hall plate biasing. |
| 3 | Output | Open-drain output - requires external pull-up (10–100 kΩ); sinks up to 1 mA when active. |
Key Features
| Feature | Design Value |
|---|---|
| Omnipolar magnetic sensitivity | Detects both north and south poles - eliminates magnet orientation constraints in hinge-mounted designs. |
| Chopper-stabilized architecture | Reduces thermal drift of Bop/Brp to <±0.1 mT/°C - ensures consistent switching over full temperature range. |
| Ultra-low average current | 8–24 μA at 2.5–5.5V - extends battery life in always-on cover-detection circuits. |
| Green molding compound | Halogen-free, RoHS-compliant (no Br/Sb) - satisfies EU Directive 2002/95/EC exemptions. |
| RF noise immunity | Validated against common cellular and Wi-Fi band interference - prevents false triggers in smartphones and tablets. |
Applications
| Cover Switch in Clam-Shell Phones | Cover Switch in Notebook PCs |
|---|---|
Use Scenario: Detects flip-open/closed state of mobile phone housing using embedded magnet and PCB-mounted sensor. IC Role / Device Role / Timing Role: Hall-effect switch providing digital lid status signal to baseband processor interrupt line. Use Value: Enables automatic screen on/off and power management with <24 μW standby draw and ±40–60 Gauss operate point tolerance. | Use Scenario: Monitors lid position in ultraportable laptops to suspend/resume CPU and backlight control. IC Role / Device Role / Timing Role: Low-power proximity detector interfacing directly with EC (Embedded Controller) GPIO. Use Value: Delivers reliable actuation at hinge gaps up to 3 mm with 15 Gauss hysteresis preventing bounce during slow lid movement. |
| Contactless Switch in PDAs | Smart Cover Detection in Tablets |
Use Scenario: Replaces mechanical slide switches in handheld PDAs for power-on activation via magnetic cover. IC Role / Device Role / Timing Role: Omnipolar sensor enabling magnet placement flexibility on cover interior without polarity alignment. Use Value: Eliminates wear-out failure mode of tactile switches while maintaining <100 μs response latency for instant wake-up. | Use Scenario: Detects attachment/detachment of magnet-equipped smart covers for auto-sleep/wake in 7–10 inch tablets. IC Role / Device Role / Timing Role: Always-on Hall switch feeding status to PMIC or application processor sleep controller. Use Value: Achieves >5-year battery shelf life in standby due to 24 μW max average consumption at 3V supply. |
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 (40 μA avg), wider Bop range (±20–80 Gauss), SC59 package only. | Requires tighter layout control for ESD-sensitive SC59; less suitable for SIP-3L footprint-constrained designs. | Select when higher magnetic sensitivity margin is needed and SIP-3L is not required. |
| MELEXIS US1881EUA-ABA-000-REEL | Lower hysteresis (8 Gauss), DFN2020-3 package, 3.5–24V supply range. | Supports wider voltage rails but consumes more power (50 μA avg); lacks SIP-3L option for through-hole legacy boards. | Prefer for high-voltage industrial panels where SIP-3L mounting is unnecessary. |
Compared with A3212LLHLT-T and US1881EUA-ABA-000-REEL, AH180-PL-A-S offers the lowest power (24 μW), SIP-3L compatibility for cost-sensitive portable assemblies, and optimized 15 Gauss hysteresis for mechanical stability in consumer hinge mechanisms.
Availability
AH180-PL-A-S is available at Aetrix Electronics and suitable for clam-shell phone cover detection, notebook lid sensing, and PDA smart-switch applications requiring stable component supply, RoHS compliance, and SIP-3L through-hole compatibility.
Supply support for AH180-PL-A-S 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 sensing in space-constrained portable electronics.
FAQ
What is the magnetic operate point (Bop) specification for AH180-PL-A-S?
The AH180-PL-A-S has an operate point of ±40 to ±60 Gauss (Option 2, as indicated by the "-S" suffix), measured at 25°C and 3V supply. This value is confirmed in the Magnetic Characteristics table on page 4 of DS31023 Rev. 17-2, and applies to both north and south pole activation due to its omnipolar design.
Does AH180-PL-A-S require an external pull-up resistor?
Yes - the AH180-PL-A-S features an open-drain output that must be pulled up externally. The datasheet recommends a 10 kΩ to 100 kΩ resistor to a voltage ≤ Vdd. Without this pull-up, the output remains floating and cannot drive logic-high signals reliably.
Is AH180-PL-A-S compatible with reflow soldering processes?
Yes - the SIP-3L package of AH180-PL-A-S is rated for standard lead-free reflow profiles per J-STD-020. Its maximum junction temperature is 150°C, and the package power dissipation curve (page 5) confirms safe operation up to 85°C ambient under typical PCB copper area conditions.
What does the "-S" suffix signify in AH180-PL-A-S?
The "-S" suffix denotes Option 2 magnetic characteristics: Bop = ±40–60 Gauss and Brp = ±10–30 Gauss (south/north polarity), with hysteresis ≥15 Gauss. This option is exclusive to the SIP-3L package and is specified in the Ordering Information table on page 6 of DS31023 Rev. 17-2.
AH180-PL-A-S 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, ±2mT 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-S FAQ
1.How can I place an order for AH180-PL-A-S through Aetrix?
Please submit a Request for Quotation (RFQ) for AH180-PL-A-S 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-S reliable?
The price and inventory of AH180-PL-A-S 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-S is usually 5 days.
3.What payment methods are accepted for AH180-PL-A-S?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AH180-PL-A-S transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AH180-PL-A-S?
AH180-PL-A-S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AH180-PL-A-S 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-S?
For technical support, including AH180-PL-A-S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AH180-PL-A-S requirements.
6.How does Aetrix verify that AH180-PL-A-S is sourced from the original manufacturer or authorized distributors?
All AH180-PL-A-S 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-S meets industry standards.
7.What is the process for return or replacement of AH180-PL-A-S?
All AH180-PL-A-S units undergo pre-shipment inspection (PSI). If there is an issue with AH180-PL-A-S, 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-S part is unused and in its original packaging.
Return procedure for AH180-PL-A-S:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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