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Diodes Incorporated AH1392-FS4-7
- Part No.:
- AH1392-FS4-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Switches (Solid State)
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
AH1392-FS4-7.pdf
- Description:
- HALL UNIPOLAR SWITCH X2-DFN1010-
- Quantity:
- Payment:
- Shipping:
Inventory:4,791
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Product details
Overview
AH1392-FS4-7 from Diodes Incorporated is a high-sensitivity, ultra-low-power digital dual-output unipolar Hall effect switch IC in X2-DFN1010-4 (Type B) package, designed for magnetic pole detection in battery-powered systems. It features independent North-pole–activated Output1 (BOPN = −30 G typical) and South-pole–activated Output2 (BOPS = +30 G typical), 1.6 V to 5.5 V supply range, 1.1 µA average supply current at 1.85 V, and 6 kV HBM ESD rating on all pins.
For engineers reviewing the AH1392-FS4-7 datasheet, AH1392-FS4-7 pinout, AH1392-FS4-7 application, or AH1392-FS4-7 equivalent, this device supports contactless position sensing in space-constrained portable electronics where micropower operation, dual-pole discrimination, and robust noise immunity are critical design requirements.
Technical Context
The AH1392-FS4-7 integrates two monolithic unipolar Hall switches with chopper-stabilized amplifiers and internal sleep/awake logic, enabling ultra-low quiescent current (0.36 µA sleep, 720 µA awake) while maintaining precise magnetic thresholds. Its dual open-drain outputs operate independently-Output1 responds to negative flux density (North pole), Output2 to positive flux density (South pole)-with hysteresis of 10 G typical to prevent chatter.
Each output includes internal pull-down capability and is rated for ±1 mA sink current with VOL = 0.15 V (typ) at 1 mA. The device achieves superior temperature stability: BOP/BRP drift is limited to ±12 G over −40°C to +85°C, and supply current variation remains under ±2 µA across full voltage and temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 3.3 V, and 5 V microcontrollers without level-shifting. |
| Avg. Supply Current | 1.1 µA at 1.85 V - extends battery life in always-on cover-detect or lid-sense applications beyond 10 years. |
| Output Configuration | Two independent open-drain outputs - allows simultaneous detection of North and South poles with separate signal routing. |
| Magnetic Thresholds | BOPN = −30 G, BOPS = +30 G (typ) - provides symmetric, polarity-specific actuation for bidirectional mechanical movement sensing. |
| Hysteresis | 10 G typical - ensures stable switching without oscillation near field transition points in noisy environments. |
| ESD Rating | 6 kV HBM on VDD and outputs - eliminates need for external TVS diodes in consumer-grade handheld assemblies. |
| Operating Temp | −40°C to +85°C - supports deployment in industrial enclosures and automotive cabin modules without derating. |
Pinout & Package
Package: X2-DFN1010-4 (Type B), 1.0 mm × 1.0 mm × 0.39 mm body, exposed thermal pad (internally unconnected, recommended tied to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VDD | Power input - accepts 1.6–5.5 V; requires 100 nF decoupling capacitor placed adjacent to pin for noise immunity. |
| 2 | GND | Ground reference - connects to PCB ground plane; thermal pad should be soldered to GND for optimal thermal performance. |
| 3 | Output2 (S-Pole) | Open-drain output activated by South pole - sinks up to 2.5 mA; requires external pull-up for logic-high state. |
| 4 | Output1 (N-Pole) | Open-drain output activated by North pole - electrically isolated from Output2; shares no internal logic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent unipolar detection | Enables single-sensor recognition of bidirectional motion (e.g., flip cover open/close) without mechanical reorientation. |
| Chopper-stabilized architecture | Eliminates offset drift over temperature and time, ensuring consistent BOP/BRP thresholds across product lifetime. |
| Internal sleep/awake control | Automatically cycles between 0.36 µA sleep and 720 µA active states - no external timing circuitry required. |
| RF noise immunity | Validated against common mobile and Wi-Fi band interference - prevents false triggering in smartphones and tablets. |
| Lead-free & halogen-free | Meets RoHS 3 (2015/863/EU) and JEDEC MSL Level 1 - supports lead-free reflow and long-term environmental compliance. |
Applications
| Smartphone/Tablet Cover Detect | Digital Camera Lens Position |
|---|---|
|
Use Scenario: Detecting magnetic closure of folio-style cases on Android tablets and iOS devices. IC Role / Device Role / Timing Role: Dual-output Hall switch providing separate wake (N-pole) and sleep (S-pole) signals to SoC GPIOs. Use Value: Eliminates mechanical switches, reduces PCB area by 60% vs. discrete Hall + logic solution, and enables <1.1 µA system standby current. |
Use Scenario: Sensing lens barrel extension/retraction in compact digital still cameras. IC Role / Device Role / Timing Role: Pole-discriminating sensor reporting lens position via two independent open-drain outputs to MCU. Use Value: Enables precise lens calibration without encoder wheel; hysteresis prevents jitter during slow mechanical transitions. |
| Home Appliance Door/Lid Switch | Industrial Tray Presence Detection |
|
Use Scenario: Monitoring washing machine door latch status and microwave oven interlock safety. IC Role / Device Role / Timing Role: Contactless safety switch with redundant pole detection - Output1 confirms latch engagement, Output2 verifies full closure. Use Value: Meets IEC 60335-1 creepage/clearance requirements; 6 kV ESD withstand avoids field failures in humid laundry environments. |
Use Scenario: Verifying correct insertion of service trays in medical analyzers and test equipment racks. IC Role / Device Role / Timing Role: Bidirectional presence detector identifying tray orientation (front/back) using magnet polarity. Use Value: Reduces assembly error rate by 99% vs. single-output Hall sensors; operates reliably after 100k+ insertions without wear. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output unipolar Hall switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AL3320EUST-7 | Single-output, higher sensitivity (BOP = ±15 G), no sleep mode - IDD(AVG) = 3.5 µA at 3 V. | Lacks independent S/N pole discrimination; requires external logic for dual-state decoding. | Select when only one magnetic threshold is needed and board space permits added discretes. |
| TLE4913-2K | Automotive-qualified (AEC-Q100), higher supply range (3–24 V), but larger SOIC-8 package and 12 µA avg. current. | Designed for 12 V battery systems; unsuitable for sub-2 V microcontroller interfaces. | Choose only for under-hood or industrial 12–24 V applications requiring AEC-Q100 certification. |
Compared with AL3320EUST-7 and TLE4913-2K, the AH1392-FS4-7 uniquely delivers true dual-pole discrimination in a 1.0 mm² footprint with sub-µA average power - making it the sole option for space- and energy-constrained portable designs requiring independent N/S detection.
Availability
AH1392-FS4-7 is available at Aetrix Electronics and suitable for smartphone cover detect, digital camera lens positioning, home appliance door sensing, and industrial tray presence detection requiring stable component supply, full RoHS 3 compliance, and guaranteed long-term manufacturability.
Supply support for AH1392-FS4-7 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, specializing in high-reliability, low-power solutions for consumer, industrial, and computing markets.
The AH1392 belongs to Diodes' Hall-effect sensor product line, engineered specifically for ultra-low-power, dual-threshold magnetic position sensing in portable and battery-operated equipment.
FAQ
What is the function of the exposed thermal pad on the AH1392-FS4-7?
The center exposed pad on the X2-DFN1010-4 (Type B) package has no internal electrical connection. Diodes recommends soldering it to the PCB ground plane to improve thermal dissipation and mechanical reliability, though floating is electrically acceptable per datasheet guidance.
Can Output1 and Output2 be used simultaneously without interference?
Yes - Output1 and Output2 are fully independent circuits with separate Hall plates, amplifiers, and output drivers. They respond only to their respective magnetic polarities and share no internal signal coupling, enabling concurrent use in multi-state sensing applications.
Does the AH1392-FS4-7 require an external pull-up resistor on its outputs?
Yes - both outputs are open-drain and require external pull-up resistors to VDD or another logic rail. Typical values range from 10 kΩ to 100 kΩ depending on rise-time and bus capacitance; 47 kΩ is commonly used for 3.3 V systems with ≤20 pF load.
How does the sleep mode affect response time in real-world use?
Sleep mode introduces a fixed 45 µs awake time (tAWAKE) and 45 ms sampling period (tPERIOD). This yields ~22 Hz maximum detection rate - sufficient for human-actuated events like lid flips or cover closures, but not for high-speed rotary encoding.
AH1392-FS4-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-XDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Unipolar Switch
- Technology:
- Hall Effect
- Polarization:
- North Pole, South Pole
- Sensing Range:
- ±4.6mT Trip, ±3.9mT Release
- Test Condition:
- -40°C ~ 85°C
- Voltage - Supply:
- 1.6V ~ 5.5V
- Current - Supply (Max):
- 9µA
- Current - Output (Max):
- 2.5mA
- Output Type:
- Switch
- Features:
- Sleep Mode
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X2-DFN1010-4 (Type B)
AH1392-FS4-7 FAQ
1.How can I place an order for AH1392-FS4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AH1392-FS4-7 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 AH1392-FS4-7 reliable?
The price and inventory of AH1392-FS4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AH1392-FS4-7 is usually 5 days.
3.What payment methods are accepted for AH1392-FS4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AH1392-FS4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AH1392-FS4-7?
AH1392-FS4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AH1392-FS4-7 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 AH1392-FS4-7?
For technical support, including AH1392-FS4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AH1392-FS4-7 requirements.
6.How does Aetrix verify that AH1392-FS4-7 is sourced from the original manufacturer or authorized distributors?
All AH1392-FS4-7 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 AH1392-FS4-7 meets industry standards.
7.What is the process for return or replacement of AH1392-FS4-7?
All AH1392-FS4-7 units undergo pre-shipment inspection (PSI). If there is an issue with AH1392-FS4-7, 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 AH1392-FS4-7 part is unused and in its original packaging.
Return procedure for AH1392-FS4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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