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Diodes Incorporated AH9248Z3TR-G1
- Part No.:
- AH9248Z3TR-G1
- Manufacturer:
- Diodes Incorporated
- Category:
- Switches (Solid State)
- Package:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Datasheet:
-
AH9248Z3TR-G1.pdf
- Description:
- MAGNETIC SWITCH OMNIPOLAR TO92
- Quantity:
- Payment:
- Shipping:
Inventory:4,734
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Product details
Overview
AH9248Z3TR-G1 from Diodes Incorporated is an ultra-sensitive, micropower omnipolar Hall-effect switch with latched digital output, designed for battery-powered handheld equipment including notebook cover detection and low-duty-cycle magnetic wake-up systems. It operates from 2.5V to 5.5V, draws only 6–10 µA in sleep mode, and features chopper-stabilized switching with ±30–55 G operating points for both north and south poles.
For engineers reviewing the AH9248Z3TR-G1 datasheet, AH9248Z3TR-G1 pinout, AH9248Z3TR-G1 application, or AH9248Z3TR-G1 equivalent, key selection criteria include its 150 µs awake time, 90–120 ms sleep duration, 10–15 µA average current, and TO-92S-3 package compatibility with space-constrained mechanical actuation interfaces.
Technical Context
The AH9248Z3TR-G1 integrates a chopper-stabilized Hall plate, bias generator, timing logic, and sleep/awake control circuitry to achieve high magnetic sensitivity with minimal drift across temperature and supply voltage. Its latched output toggles on B > BOP (±30–55 G) and releases on B < BRP (±5–20 G), delivering 10 G typical hysteresis.
Sleep mode reduces ICC to 6–10 µA by periodically disabling sensing and amplification, while awake mode activates full signal chain for 150 µs to detect field transitions. The device requires no external pull-up resistor and drives up to 1 mA with ≤0.4 V saturation voltage at IOUT = 1.0 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5 V to 5.5 V - supports single-cell Li-ion, alkaline, or coin-cell battery operation without regulation. |
| Sleep Current | 6–10 µA - enables multi-year battery life in infrequently activated devices like laptop lid switches. |
| Omnipolar BOP | ±30–55 G - detects either magnet polarity without orientation constraints, simplifying mechanical design. |
| Awake Time | 150 µs - ensures fast response to transient magnetic events while minimizing active power consumption. |
| Saturation Voltage | ≤0.4 V at 1.0 mA - guarantees strong logic-low output compatible with 1.8 V–5 V CMOS inputs. |
| Hysteresis | 10 G typical - prevents output chatter near switching thresholds in noisy magnetic environments. |
| Operating Temp | −40 °C to +85 °C - validated for consumer electronics and industrial portable equipment. |
Pinout & Package
AH9248Z3TR-G1 is packaged in TO-92S-3: a compact, axial-leaded through-hole package with 3.85 mm height, optimized for mechanical integration into clamshell enclosures and sliding mechanisms.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (TO-92S-3) | VCC | Positive supply input - must be decoupled with ≥10 nF ceramic capacitor near pin for stable chopper operation. |
| 2 (TO-92S-3) | GND | Reference ground - shared return path for Hall sensor, amplifier, and output driver; requires low-impedance connection. |
| 3 (TO-92S-3) | OUTPUT | Open-drain latched output - sinks up to 1 mA; requires external pull-up for logic-high state in most host interfaces. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Sleep Mode | 6–10 µA quiescent current extends battery life in always-on detection applications such as PDA flip covers. |
| Chopper Stabilization | Eliminates offset drift over temperature and time, maintaining consistent BOP/BRP across −40 °C to +85 °C. |
| Omnipolar Latching | Responds identically to north or south pole approach-no magnet orientation alignment needed during assembly. |
| Wide Supply Range | 2.5–5.5 V operation allows direct interface with unregulated battery rails, reducing BOM count. |
| RoHS/Green Compliance | Fully lead-free, halogen- and antimony-free per Diodes Inc. definitions - meets global environmental compliance mandates. |
Applications
| Cover Switch in Notebook PC | Handheld Wireless Awake Switch |
|---|---|
|
Use Scenario: Detects lid open/close state in ultraportable laptops to suspend/resume system activity. IC Role / Device Role / Timing Role: Omnipolar latched Hall switch providing reliable mechanical position feedback with zero standby power draw. Use Value: Enables >3-year battery shelf life in suspended mode via 6–10 µA sleep current and eliminates need for mechanical microswitches. |
Use Scenario: Wakes Bluetooth headset or smartwatch from deep sleep when user removes device from charging cradle. IC Role / Device Role / Timing Role: Magnetic presence detector triggering MCU wake-up interrupt within 150 µs of field change. Use Value: Reduces average system current by >95% versus continuously powered Hall sensors in wearable power budgets. |
| Magnet Switch in Low Duty Cycle Applications | Clamshell Phone Position Sensing |
|
Use Scenario: Monitors hinge position in foldable tablets to enable display rotation and UI adaptation. IC Role / Device Role / Timing Role: Latched Hall sensor with 90–120 ms sleep interval, activated only during hinge motion events. Use Value: Delivers deterministic edge-triggered output with 10 G hysteresis to prevent false triggers from vibration or EMI. |
Use Scenario: Determines open/closed state of dual-screen smartphones with magnetic closure mechanism. IC Role / Device Role / Timing Role: Omnipolar switch interfacing directly with application processor GPIO, requiring no polarity calibration. Use Value: Simplifies manufacturing by eliminating magnet orientation verification during final assembly. |
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 |
|---|---|---|---|
| AH1808 | Higher BOP (±60 G typ), no sleep mode - 25 µA continuous supply current vs. AH9248's 10 µA avg. | Targeted at higher-field, always-active detection; unsuitable for multi-year battery life requirements. | Select AH1808 only if magnetic gap exceeds 5 mm or system lacks sleep-control capability. |
| HAL1506 | Bipolar (not omnipolar) operation, 3.3 V fixed supply, integrated pull-up - lacks polarity flexibility and wide-VCC support. | Requires magnet polarity alignment and regulated 3.3 V rail; incompatible with direct battery connection. | Choose HAL1506 only when existing PCB layout fixes 3.3 V supply and magnet orientation is controlled. |
Compared with AH1808 and HAL1506, AH9248Z3TR-G1 uniquely combines omnipolar detection, micropower sleep, and 2.5–5.5 V operation - making it the sole option for long-life, orientation-agnostic magnetic switching in unregulated portable systems.
Availability
AH9248Z3TR-G1 is available at Aetrix Electronics and suitable for notebook cover detection, handheld wireless wake-up, and low-duty-cycle magnet switch applications requiring stable component supply and RoHS-compliant sourcing.
Supply support for AH9248Z3TR-G1 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, industrial, and computing markets.
AH9248 belongs to Diodes' Hall-effect sensor product line, engineered specifically for ultra-low-power magnetic position sensing in battery-operated portable electronics.
FAQ
Does AH9248Z3TR-G1 require an external pull-up resistor?
No - the AH9248Z3TR-G1 has an open-drain output that requires an external pull-up resistor to establish a defined logic-high level. Unlike the AH9249 variant, it does not integrate an internal pull-up. Typical values range from 10 kΩ to 100 kΩ depending on rise-time and bus loading requirements.
What is the magnetic polarity behavior of AH9248Z3TR-G1?
The AH9248Z3TR-G1 is truly omnipolar: it turns on (output low) when exposed to either a sufficiently strong north pole (BOPN = −55 to −30 G) or south pole (BOPS = +30 to +55 G) applied to the branded side. No polarity-specific mounting or magnet selection is required.
How does the sleep/awake cycle affect system timing?
The AH9248Z3TR-G1 alternates between 90–120 ms sleep intervals and ~150 µs awake windows. During awake time, it samples magnetic field and updates output; during sleep, output remains latched and current drops to 6–10 µA. This duty cycle yields 0.15% active time, enabling precise timing-aware wake-up without continuous monitoring.
Is AH9248Z3TR-G1 suitable for automotive applications?
No - AH9248Z3TR-G1 is specified for −40 °C to +85 °C operation and is not qualified to AEC-Q100 standards. Its design targets consumer portable electronics, not automotive under-hood or safety-critical systems. Diodes offers AEC-Q100-qualified Hall switches (e.g., AH336x series) for automotive use.
AH9248Z3TR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Function:
- Omnipolar Switch
- Technology:
- Hall Effect
- Polarization:
- North Pole, South Pole
- Sensing Range:
- ±5.5mT Trip, ±0.5mT Release
- Test Condition:
- 25°C
- Voltage - Supply:
- 2.5V ~ 5.5V
- Current - Supply (Max):
- 1.5µA
- Current - Output (Max):
- 2mA
- Output Type:
- Open Drain
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92
AH9248Z3TR-G1 FAQ
1.How can I place an order for AH9248Z3TR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AH9248Z3TR-G1 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 AH9248Z3TR-G1 reliable?
The price and inventory of AH9248Z3TR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AH9248Z3TR-G1 is usually 5 days.
3.What payment methods are accepted for AH9248Z3TR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AH9248Z3TR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AH9248Z3TR-G1?
AH9248Z3TR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AH9248Z3TR-G1 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 AH9248Z3TR-G1?
For technical support, including AH9248Z3TR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AH9248Z3TR-G1 requirements.
6.How does Aetrix verify that AH9248Z3TR-G1 is sourced from the original manufacturer or authorized distributors?
All AH9248Z3TR-G1 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 AH9248Z3TR-G1 meets industry standards.
7.What is the process for return or replacement of AH9248Z3TR-G1?
All AH9248Z3TR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AH9248Z3TR-G1, 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 AH9248Z3TR-G1 part is unused and in its original packaging.
Return procedure for AH9248Z3TR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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