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Diodes Incorporated AH3360-FA-7
- Part No.:
- AH3360-FA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Switches (Solid State)
- Package:
- 4-UDFN Exposed Pad
- Datasheet:
-
AH3360-FA-7.pdf
- Description:
- MAGNETIC SWITCH UNIPOLAR 4DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,995
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Product details
Overview
AH3360-FA-7 from Diodes Incorporated is a high-sensitivity, micropower unipolar Hall-effect switch IC in X1-DFN1216-4 package, operating from 1.6V to 3.6V with 4.3µA average supply current at 1.85V, activated by south-pole magnetic field ≥30 Gauss, and featuring chopper-stabilized architecture for thermal stability - used in cellular phone cover detection and portable PC lid sensing.
For engineers reviewing the AH3360-FA-7 datasheet, AH3360-FA-7 pinout, AH3360-FA-7 application, or AH3360-FA-7 equivalent, key selection criteria include magnetic operate/release points (BOP/BRP), ultra-low sleep current (2.5µA), hysteresis (10 Gauss typ), and compatibility with battery-powered systems requiring <5µA average power draw and compact DFN packaging.
Technical Context
The AH3360-FA-7 implements a chopper-stabilized Hall sensor with internal offset cancellation and sleep/awake logic, enabling stable switching across -40°C to +85°C with <10% BOP drift over temperature. Its hibernating clocking system cycles between 50µs awake and ~100ms period, yielding 0.1% duty cycle.
It delivers unipolar south-pole activation only, with output pulled low when B > BOP (30G typ) and released when B < BRP (20G typ), providing 10G typical hysteresis. No external pull-up resistor is required due to integrated output driver with 0.2V VOL at 1mA sink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.6V–3.6V operating range supports single-cell Li-ion and coin-cell battery systems. |
| Average Supply Current | 4.3µA at 1.85V enables multi-year operation in always-on proximity sensing. |
| Operate Point (BOP) | 30 Gauss typ (south pole) ensures reliable actuation with small magnets at air gaps up to 3mm. |
| Release Point (BRP) | 20 Gauss typ provides 10G hysteresis to prevent chatter near threshold. |
| Output Type | Open-drain, active-low with 0.2V VOL at 1mA sink - directly interfaces with 1.8V/3.3V MCU GPIO. |
| ESD Rating | 8kV HBM allows robust handling in assembly and end-use without additional protection. |
| Operating Temp | -40°C to +85°C covers consumer, industrial, and automotive cabin environments. |
Pinout & Package
X1-DFN1216-4 is a 1.2mm × 1.6mm, 0.5mm pitch, 4-pin leadless package with exposed thermal pad (not electrically connected); pin 1 = OUTPUT, pin 2 = VDD, pin 3 = NC (no internal connection), pin 4 = GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTPUT | Open-drain output pin; sinks up to 3mA; requires external pull-up only if high-impedance off-state needed. |
| 2 | VDD | Power supply input; decoupling capacitor (100nF) recommended at pin for noise immunity. |
| 3 | NC | No internal connection; may be left floating or tied to GND for mechanical stability. |
| 4 | GND | Ground reference for Hall sensor, amplifier, and output driver; connects to PCB thermal pad. |
Key Features
| Feature | Design Value |
|---|---|
| Chopper stabilization | Reduces thermal drift of BOP/BRP to ±10% over full temperature range, eliminating calibration in production. |
| Hibernating clocking | Enables 2.5µA sleep current and 4.3µA average draw - extends battery life beyond 5 years in low-duty-cycle lid switches. |
| Integrated pull-down | Eliminates need for external resistor on output line, reducing BOM count and PCB area in space-constrained mobile designs. |
| South-pole unipolar activation | Simplifies mechanical design: magnet orientation is fixed relative to part marking side, removing polarity ambiguity during assembly. |
| RF noise immunity | Validated against common wireless bands (e.g., GSM, Wi-Fi), preventing false triggers in handheld devices near antennas. |
Applications
| Cellular Phone Cover Detection | Portable PC Lid Switch |
|---|---|
Use Scenario: Detects flip cover closure on smartphones to disable display and enter sleep mode. IC Role / Device Role / Timing Role: Unipolar Hall switch providing deterministic, bounce-free open/closed state signaling. Use Value: 4.3µA average current enables >3-year battery standby with daily cover actuation; 30G BOP ensures compatibility with thin neodymium magnets embedded in covers. | Use Scenario: Senses clamshell lid position in ultrabooks to suspend/resume CPU and backlight. IC Role / Device Role / Timing Role: Low-power magnetic position detector interfacing directly with EC or PCH GPIO. Use Value: X1-DFN1216-4 footprint (1.2×1.6mm) fits beneath narrow bezels; -40°C to +85°C rating supports operation in parked vehicles and hot ambient environments. |
| Docking Station Presence | Home Appliance Proximity Sensing |
Use Scenario: Confirms physical mating of tablet into cradle or keyboard dock before enabling USB/PCIe link training. IC Role / Device Role / Timing Role: Magnetic presence indicator with fast wake response (50µs) for immediate system readiness. Use Value: 50µs awake time ensures output validity within first 100ms after power-on - meets USB PD handshake timing budgets. | Use Scenario: Detects drawer or door opening in smart refrigerators and washing machines for UI activation and energy management. IC Role / Device Role / Timing Role: Contactless position switch replacing mechanical microswitches subject to wear and contamination. Use Value: 8kV HBM ESD rating withstands repeated human touch in consumer appliances; halogen-free "Green" construction meets IEC 61215 and RoHS 3 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unipolar Hall switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AL3360Q-7 | Same die, AEC-Q100 Grade 1 qualified; identical electrical specs but automotive-qualified test flow and traceability. | Required for automotive interior modules (e.g., center console latches) where qualification and PPAP are mandatory. | Select AL3360Q-7 only when automotive qualification is contractually required; AH3360-FA-7 suffices for consumer/industrial use. |
| TMAG5170AHQDBVR | Tri-axis linear Hall sensor with SPI interface; 30x higher current (120µA avg), programmable thresholds, and 16-bit output resolution. | Used where analog field strength measurement or multi-axis detection is needed - not a drop-in replacement. | Choose TMAG5170 only for closed-loop position feedback or adaptive thresholding; AH3360-FA-7 remains optimal for simple on/off detection. |
Compared with AL3360Q-7, AH3360-FA-7 offers identical performance at lower cost and shorter lead time for non-automotive use; versus TMAG5170, it delivers 28× lower power and simpler integration where binary switching suffices.
Availability
AH3360-FA-7 is available at Aetrix Electronics and suitable for cellular phone cover detection, portable PC lid sensing, docking station presence verification, and home appliance door position monitoring requiring stable component supply and long-lifecycle support.
Supply support for AH3360-FA-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 centers across Asia and manufacturing in China, Taiwan, and the US.
The AH3360 belongs to Diodes' Hall-effect switch product line, engineered specifically for ultra-low-power, space-constrained proximity and position sensing in battery-operated consumer and industrial equipment.
FAQ
What is the magnetic polarity requirement for AH3360-FA-7 activation?
The AH3360-FA-7 activates exclusively with a south magnetic pole applied to the part marking side. North-pole exposure produces no output change. The device is unipolar - it does not respond to alternating or north-pole fields, ensuring immunity to stray magnetic interference in multi-magnet environments.
Can AH3360-FA-7 operate from a 1.5V alkaline cell?
No - the absolute minimum supply voltage is 1.6V per specification. At 1.5V, the internal regulator and Hall amplifier fail to bias correctly, resulting in undefined output behavior and potential latch-up. Systems using alkaline cells must implement voltage monitoring or use a boost converter to maintain ≥1.6V.
Is the NC pin on X1-DFN1216-4 required to be grounded?
No - pin 3 (NC) has no internal connection and may be left floating. However, grounding it improves mechanical anchoring during reflow and reduces risk of solder bridging. Diodes recommends tying NC to GND in layout for reliability, though electrical functionality is unaffected either way.
Does AH3360-FA-7 require an external decoupling capacitor?
Yes - a 100nF ceramic capacitor between VDD and GND, placed within 1mm of the pins, is mandatory per datasheet Note 4. This stabilizes the internal rail during wake transitions and suppresses RF noise coupling that could cause false triggering in noisy environments like cellular handsets.
AH3360-FA-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-UDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Unipolar Switch
- Technology:
- Hall Effect
- Polarization:
- South Pole
- Sensing Range:
- 4.6mT Trip, 0.9mT Release
- Test Condition:
- -40°C ~ 85°C
- Voltage - Supply:
- 1.6V ~ 3.6V
- Current - Supply (Max):
- 8µA
- Current - Output (Max):
- 3mA
- Output Type:
- Push-Pull
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X1-DFN1216-4
AH3360-FA-7 FAQ
1.How can I place an order for AH3360-FA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AH3360-FA-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 AH3360-FA-7 reliable?
The price and inventory of AH3360-FA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AH3360-FA-7 is usually 5 days.
3.What payment methods are accepted for AH3360-FA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AH3360-FA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AH3360-FA-7?
AH3360-FA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AH3360-FA-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 AH3360-FA-7?
For technical support, including AH3360-FA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AH3360-FA-7 requirements.
6.How does Aetrix verify that AH3360-FA-7 is sourced from the original manufacturer or authorized distributors?
All AH3360-FA-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 AH3360-FA-7 meets industry standards.
7.What is the process for return or replacement of AH3360-FA-7?
All AH3360-FA-7 units undergo pre-shipment inspection (PSI). If there is an issue with AH3360-FA-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 AH3360-FA-7 part is unused and in its original packaging.
Return procedure for AH3360-FA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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