My Inquiry
My Account
Diodes Incorporated AH1392-HK4-7
- Part No.:
- AH1392-HK4-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Switches (Solid State)
- Package:
- 4-XFDFN Exposed Pad
- Datasheet:
-
AH1392-HK4-7.pdf
- Description:
- HALL OMNIPOLAR SWITCH X2-DFN1410
- Quantity:
- Payment:
- Shipping:
Inventory:2,340
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AH1392-HK4-7 from Diodes Incorporated is a high-sensitivity, ultra-low-power digital dual-output unipolar Hall effect switch IC in X2-DFN1410-4 package, designed for magnetic pole detection in battery-powered systems. It operates from 1.6V to 5.5V, draws only 1.1μA average supply current at 1.85V, and features independent North-pole–activated Output1 (BOPN = −30G typ.) and South-pole–activated Output2 (BOPS = +30G typ.), enabling contactless position sensing in compact consumer and industrial devices.
For engineers reviewing the AH1392-HK4-7 datasheet, AH1392-HK4-7 pinout, AH1392-HK4-7 application, or AH1392-HK4-7 equivalent, this device supports dual-pole detection with chopper-stabilized architecture, 6kV HBM ESD protection on all pins, and guaranteed operation across −40°C to +85°C - critical for smart cover detection, lid/door sensing, and low-power proximity switches where supply efficiency and magnetic threshold stability are design-critical.
Technical Context
The AH1392 integrates two monolithic unipolar Hall switches sharing a single chopper-stabilized Hall plate and offset cancellation circuitry, enabling simultaneous but independent magnetic field sampling for N- and S-pole detection. Its sleep/awake logic cycles between active sampling (tAWAKE = 45μs typ.) and deep sleep (tPERIOD = 45ms typ.), achieving micropower operation without sacrificing magnetic sensitivity.
Each output is open-drain with internal pull-down capability and operates with rail-to-rail compatibility: VOL = 0.15V (at 1mA sink) and VOH = VDD−0.15V (at −1mA source). Magnetic thresholds are temperature-compensated, with BOPN/BRPN hysteresis of 10G min and BOPS/BRPS hysteresis of 10G min over full operating range, ensuring robust switching in noisy or thermally varying environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 5.5V - supports direct interface with 1.8V/3.3V/5V microcontrollers and Li-ion/Li-poly battery systems without level-shifting. |
| Average Supply Current | 1.1μA at 1.85V - enables multi-year battery life in always-on sensing applications such as smart covers and IoT sensors. |
| N-Pole Operate Point (BOPN) | −30G typical - triggers Output1 low when North pole approaches marking surface; stable across −40°C to +85°C. |
| S-Pole Operate Point (BOPS) | +30G typical - triggers Output2 low when South pole approaches marking surface; independent of Output1 activation. |
| Output Drive Capability | 2.5mA sink/source - sufficient to directly drive MCU GPIOs or small LEDs without external buffers. |
| ESD Rating | 6kV HBM on VDD, Output1, Output2 - eliminates need for external TVS diodes in handheld and appliance-level ESD environments. |
| Operating Temperature | −40°C to +85°C - qualified for industrial and home appliance deployments without derating. |
Pinout & Package
Package: X2-DFN1410-4 (1.4mm × 1.0mm × 0.37mm), low-profile, lead-free, RoHS-compliant, with exposed thermal pad (internally unconnected; recommended tied to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Power supply input | Accepts 1.6V–5.5V; requires 100nF bypass capacitor placed adjacent to pin for noise immunity and power stabilization. |
| 2 - GND | Ground reference | Common return for supply and outputs; connects to PCB ground plane; thermal pad should be soldered to GND for optimal thermal performance. |
| 3 - Output2 | South-pole–activated open-drain output | Pulled low when B ≥ +30G (S-pole); high-impedance otherwise; compatible with 1.8V/3.3V/5V logic inputs. |
| 4 - Output1 | North-pole–activated open-drain output | Pulled low when B ≤ −30G (N-pole); independent timing and hysteresis from Output2; no cross-talk between channels. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent unipolar outputs | Enables single-sensor detection of both magnetic polarities - reduces BOM count and PCB area vs. two discrete Hall switches. |
| Chopper-stabilized architecture | Eliminates offset drift and 1/f noise, ensuring stable BOP/BRP thresholds across voltage, temperature, and lifetime. |
| Ultra-low average current (1.1μA) | Extends battery life in always-on sensing nodes - e.g., tablet smart covers drawing <1μA average over full duty cycle. |
| 6kV HBM ESD on all pins | Meets IEC 61000-4-2 Level 4 system-level ESD requirements without external protection components. |
| −40°C to +85°C operation | Validated performance across full industrial temperature range - no calibration or compensation required in end equipment. |
Applications
| Smart Cover Detection | Lid/Door Position Sensing |
|---|---|
|
Use Scenario: Detecting flip-open/closed state of tablet or laptop smart covers using embedded magnets. IC Role / Device Role / Timing Role: Dual-output Hall switch providing separate N- and S-pole detection signals to MCU GPIOs for unambiguous open/closed state decoding. Use Value: Eliminates mechanical switches; enables zero-power wake-up via magnetic event, reducing system standby current by >90% vs. polling-based solutions. |
Use Scenario: Monitoring open/closed status of refrigerator doors, washing machine lids, or industrial control cabinet doors. IC Role / Device Role / Timing Role: Contactless position sensor with hysteresis (10G min) preventing chatter during slow mechanical movement near threshold. Use Value: Resists false triggering from vibration or thermal expansion; operates reliably at 1.8V supply, compatible with low-voltage appliance controllers. |
| Handheld Gaming Console Buttons | Industrial Proximity Switches |
|
Use Scenario: Replacing tactile buttons with magnet-actuated triggers in portable gaming controllers for silent, wear-free operation. IC Role / Device Role / Timing Role: Low-latency (45μs awake time) dual-output switch delivering immediate N/S polarity response to directional magnet motion. Use Value: Enables directional input (e.g., left/right swipe) using single magnet orientation - no encoder or multiple sensors required. |
Use Scenario: Non-contact detection of metal part presence on assembly lines or robotic end-effectors. IC Role / Device Role / Timing Role: Micropower Hall switch interfaced to PLC input modules via optocoupler or level shifter, surviving harsh EMI environments. Use Value: 6kV ESD rating and −40°C to +85°C operation ensure uptime in factory-floor conditions without shielding or derating. |
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 |
|---|---|---|---|
| AL3320EUA-7 | Single-output unipolar switch; no S-pole detection; 2.5μA avg current at 3V; same X2-DFN1010-4 package. | Lacks independent dual-pole output - requires two devices for N+S detection, increasing cost and board space. | Select when only one polarity detection is needed and lowest possible footprint is prioritized over dual functionality. |
| TMAG5170AHQDBVR | 3-axis linear Hall sensor with SPI interface; 1.8V–5.5V; 1.5mA active current; programmable thresholds and diagnostics. | Provides analog field strength data and direction, not simple digital switching; requires MCU firmware support. | Select when vector magnetic measurement or configurable hysteresis is required - not a drop-in replacement for binary switch use cases. |
Compared with AL3320EUA-7 and TMAG5170AHQDBVR, the AH1392-HK4-7 uniquely delivers true dual-pole digital switching in one chip with sub-μA average power, making it optimal for battery-constrained, cost-sensitive, and space-limited contactless sensing where deterministic N/S state reporting is mandatory.
Availability
AH1392-HK4-7 is available at Aetrix Electronics and suitable for smart cover detection, lid/door position sensing, and industrial proximity switches requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for AH1392-HK4-7 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 ICs, specializing in high-reliability, energy-efficient signal and power management solutions for consumer, industrial, and automotive markets.
The AH1392 belongs to Diodes' Hall-effect sensor product line, engineered specifically for ultra-low-power, dual-threshold magnetic switching in portable and battery-operated equipment - emphasizing micropower operation, magnetic stability, and compact packaging.
FAQ
What is the function of the exposed thermal pad on the AH1392-HK4-7 package?
The center exposed pad in the X2-DFN1410-4 package has no internal electrical connection. Diodes recommends soldering it to the PCB ground plane to improve thermal dissipation and mechanical reliability. Doing so lowers junction temperature by up to 12°C under continuous operation and enhances solder joint integrity during thermal cycling - critical for long-life consumer and industrial deployments.
Can AH1392-HK4-7 operate reliably at 1.6V supply voltage?
Yes - the AH1392-HK4-7 is fully specified down to 1.6V. At this minimum voltage, IDD(AVG) remains ≤9μA across −40°C to +85°C, BOPN and BOPS thresholds retain ±15% tolerance, and VOL stays ≤0.25V at 1mA load. This enables direct integration with single-cell LiFePO₄ or alkaline battery systems without regulation.
How does the chopper stabilization in AH1392 improve magnetic sensing accuracy?
Chopper stabilization dynamically modulates the Hall plate signal at ~1MHz and demodulates it to cancel DC offset and low-frequency drift. This reduces BOP/BRP variation to <±3G over temperature and supply voltage, eliminates 1/f noise, and ensures consistent switching points across 10+ years of operation - unlike non-chopped Hall switches that drift >10G over lifetime.
Is AH1392-HK4-7 qualified for automotive applications?
No - AH1392-HK4-7 is not AEC-Q100 qualified. It is rated for industrial temperature range (−40°C to +85°C) and intended for consumer, home appliance, and general industrial use. For automotive-grade alternatives, Diodes offers the AH189x series (AEC-Q100 Grade 2), which share similar dual-output architecture but include extended temperature range and PPAP documentation support.
AH1392-HK4-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-XFDFN 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-DFN1410-4
AH1392-HK4-7 FAQ
1.How can I place an order for AH1392-HK4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AH1392-HK4-7 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-HK4-7 reliable?
The price and inventory of AH1392-HK4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AH1392-HK4-7 is usually 5 days.
3.What payment methods are accepted for AH1392-HK4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AH1392-HK4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AH1392-HK4-7?
AH1392-HK4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AH1392-HK4-7 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-HK4-7?
For technical support, including AH1392-HK4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AH1392-HK4-7 requirements.
6.How does Aetrix verify that AH1392-HK4-7 is sourced from the original manufacturer or authorized distributors?
All AH1392-HK4-7 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-HK4-7 meets industry standards.
7.What is the process for return or replacement of AH1392-HK4-7?
All AH1392-HK4-7 units undergo pre-shipment inspection (PSI). If there is an issue with AH1392-HK4-7, 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-HK4-7 part is unused and in its original packaging.
Return procedure for AH1392-HK4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AH1392-HK4-7 Tags
-
TCS40DLR,LF
Toshiba Semiconductor and Storage
-
DRV5032FBDBZR
Texas Instruments
-
DRV5032FADBZR
Texas Instruments
-
AH1912-FA-7
Diodes Incorporated
-
AH1913-W-7
Diodes Incorporated
-
AH1911-W-7
Diodes Incorporated
-
TLI49631MXTSA1
Infineon Technologies
-
SM453R
Honeywell Sensing and Productivity Solutions
-
MLX90248ESE-EBA-000-RE
Melexis Technologies NV
-
MLX92213ELD-AAA-000-RE
Melexis Technologies NV
-
TLE4913HTSA1
Infineon Technologies
-
US5781ESE-AAA-000-RE
Melexis Technologies NV
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
