Diodes Incorporated AH180-PG-A-S
- Part No.:
- AH180-PG-A-S
- Manufacturer:
- Diodes Incorporated
- Category:
- Switches (Solid State)
- Package:
- 3-SIP, Formed Leads
- Datasheet:
-
AH180-PG-A-S.pdf
- Description:
- MAGNETIC SWITCH OMNIPOLAR 3SIP
- Quantity:
- Payment:

- Shipping:

Inventory:2,304
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Product details
Overview
AH180-PG-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, ±40–60 G magnetic operate point, and open-drain output activated by either north or south pole - used in clam-shell phone cover detection.
For engineers reviewing the AH180-PG-A-S datasheet, AH180-PG-A-S pinout, AH180-PG-A-S application, or AH180-PG-A-S equivalent, key selection criteria include magnetic sensitivity hysteresis (15 G typ), chopper-stabilized temperature stability, RoHS-compliant green molding compound, and SIP-3L lead-free packaging for space-constrained portable designs.
Technical Context
The AH180 employs dual Hall plates and chopper stabilization to cancel offset drift and suppress thermal stress effects, enabling stable switching across –40°C to +85°C ambient range. Its latch-free architecture delivers single-pole-triggered output without internal memory.
Magnetic response is defined by bipolar operate points (±40–60 G) and release points (±10–30 G), yielding 15 G typical hysteresis. The open-drain output requires external pull-up (10–100 kΩ) and supports 1 mA sink current with <0.3 V on-state voltage.
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 battery-powered rails without regulation. |
| Supply Current (avg) | 8–24 μA - ensures multi-year operation on coin-cell batteries in cover-sense applications. |
| Operate Point (Bop) | ±40–60 G - detects weak magnetic fields from small magnets in thin clamshell lids. |
| Hysteresis (Bhy) | 15 G typ - prevents chatter during marginal field transitions near threshold. |
| Output Type | Open-drain - allows wired-OR logic, level translation, and flexible pull-up configuration. |
| ESD Rating (HBM) | 6 kV - protects against handling damage in high-volume assembly of consumer handhelds. |
| Operating Temp | –40°C to +85°C - supports full industrial range without derating in portable enclosures. |
Pinout & Package
SIP-3L package: 3-pin single-inline package with gull-wing leads, 2.00 mm × 1.15 mm body, 0.51 mm nominal thickness, branded top surface, and active area depth of 0.43 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vdd | Power supply input - accepts 2.5–5.5 V; internal regulator not required. |
| 2 | GND | Ground reference - must be low-impedance return path for Hall plate bias and output stage. |
| 3 | Output | Open-drain output - sinks up to 1 mA; 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 assembly. |
| Chopper-stabilized architecture | Reduces offset drift to <1 mV/°C - maintains consistent Bop/Brp over temperature without calibration. |
| Green molding compound (Br/Sb-free) | Complies with EU RoHS Directive 2002/95/EC - meets environmental compliance for global consumer shipments. |
| Low-power wake-up timing | 75–125 μs awake time - enables rapid response after sleep mode entry in power-gated systems. |
| RF noise immunity | Validated against common-band interference - sustains reliable switching in noisy cellular RF environments. |
Applications
| Clam-Shell Phone Cover Detection | Notebook Lid Switch |
|---|---|
|
Use Scenario: Detects opening/closing of flip-style mobile phone covers using embedded magnet and sensor mounted on hinge side. IC Role / Device Role / Timing Role: Hall-effect switch providing digital lid-open signal to baseband processor interrupt line. Use Value: Enables automatic screen on/off with <24 μW quiescent power, extending standby time by >30% vs. alternative reed switches. |
Use Scenario: Monitors laptop lid position to trigger sleep/wake state transitions in Windows/Linux OS. IC Role / Device Role / Timing Role: Magnetic proximity sensor interfacing directly to EC (Embedded Controller) GPIO with open-drain logic. Use Value: Delivers sub-100 μs response latency and ±15 G hysteresis to prevent false triggers during minor lid vibrations. |
| Portable Media Player Hold Function | Smart Watch Strap Detection |
|
Use Scenario: Activates hold mode when magnetic strap closes around PMP body, disabling touch interface during pocket carry. IC Role / Device Role / Timing Role: Low-voltage omnipolar switch driving enable signal to touch controller power management block. Use Value: Operates reliably at 2.5 V minimum supply, supporting single-cell Li-ion operation down to 3.0 V battery voltage. |
Use Scenario: Detects magnetic closure of quick-release watch band to initiate secure pairing or display activation. IC Role / Device Role / Timing Role: Ultra-low-power Hall switch feeding wake signal to BLE SoC's deep-sleep wake pin. Use Value: Draws only 8–16 μA average current - extends 200 mAh coin cell life beyond 18 months in intermittent-use mode. |
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 (45 μA avg), wider Bop range (±25–75 G), SC59 package only | Requires higher PCB area due to larger thermal pad; less suitable for ultra-thin clamshell gaps | Select if wider magnetic tolerance or legacy SC59 footprint compatibility is required |
| MELEXIS US5881LUA-ABA-000-REEL | Integrated pull-up resistor, fixed 3.3 V operation, DFN1616-4 package | No external pull-up needed but lacks voltage flexibility; incompatible with 5 V systems | Choose for simplified BOM count in 3.3 V-only designs where SIP-3L height is acceptable |
Compared with A3212LLHLT-T and US5881LUA-ABA-000-REEL, AH180-PG-A-S uniquely balances ultra-low power (8–24 μA), SIP-3L compactness (2.0 × 1.15 mm), and 2.5–5.5 V flexibility - making it optimal for cost-sensitive, space-constrained, multi-rail portable cover-sense applications.
Availability
AH180-PG-A-S is available at Aetrix Electronics and suitable for clam-shell phone cover detection, notebook lid switching, and portable media player hold functions requiring stable component supply, RoHS compliance, and SIP-3L footprint continuity.
Supply support for AH180-PG-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, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and Malaysia.
AH180 belongs to Diodes' Hall-effect sensor product line, engineered specifically for ultra-low-power magnetic presence detection in battery-operated consumer electronics - emphasizing size, energy efficiency, and magnetic robustness over programmability or digital interfaces.
FAQ
What is the magnetic polarity requirement for AH180-PG-A-S operation?
AH180-PG-A-S is an omnipolar Hall switch: it activates with either a north or south magnetic pole presented to its branded surface. No magnet polarity orientation is required during mechanical integration - simplifying assembly and reducing field-test failures in clamshell or lid applications.
Does AH180-PG-A-S require an external pull-up resistor?
Yes - AH180-PG-A-S features an open-drain output and requires an external pull-up resistor between Vdd and the Output pin. Diodes recommends 10 kΩ to 100 kΩ; lower values improve rise time but increase static current, while higher values reduce power but risk noise susceptibility in EMI-prone layouts.
Can AH180-PG-A-S operate from a 2.5 V lithium coin cell?
Yes - AH180-PG-A-S is fully specified down to 2.5 V supply voltage and draws only 8–24 μA average current at that rail. It maintains valid magnetic switching performance across the full –40°C to +85°C range, making it suitable for long-life coin-cell applications like smart watches and remote controls.
Is the SIP-3L package of AH180-PG-A-S compatible with standard SMT reflow profiles?
Yes - the SIP-3L package uses standard gull-wing leads and complies with IPC/JEDEC J-STD-020 moisture sensitivity level 1. It supports peak reflow temperatures up to 260°C and is qualified for lead-free soldering per Diodes' AP02001 pad layout guidelines and AP02007 taping specifications.
AH180-PG-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-PG-A-S FAQ
1.How can I place an order for AH180-PG-A-S through Aetrix?
Please submit a Request for Quotation (RFQ) for AH180-PG-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-PG-A-S reliable?
The price and inventory of AH180-PG-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-PG-A-S is usually 5 days.
3.What payment methods are accepted for AH180-PG-A-S?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AH180-PG-A-S transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AH180-PG-A-S?
AH180-PG-A-S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AH180-PG-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-PG-A-S?
For technical support, including AH180-PG-A-S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AH180-PG-A-S requirements.
6.How does Aetrix verify that AH180-PG-A-S is sourced from the original manufacturer or authorized distributors?
All AH180-PG-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-PG-A-S meets industry standards.
7.What is the process for return or replacement of AH180-PG-A-S?
All AH180-PG-A-S units undergo pre-shipment inspection (PSI). If there is an issue with AH180-PG-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-PG-A-S part is unused and in its original packaging.
Return procedure for AH180-PG-A-S:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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