My Inquiry
My Account
Diodes Incorporated AH1888-ZG-7
- Part No.:
- AH1888-ZG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Switches (Solid State)
- Package:
- SOT-553
- Datasheet:
-
AH1888-ZG-7.pdf
- Description:
- MAGNETIC SWITCH OMNIPOLAR SOT553
- Quantity:
- Payment:
- Shipping:
Inventory:2,523
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AH1888-ZG-7 from Diodes Incorporated is a micropower, omni-polar Hall effect switch IC in SOT553 package with dual active outputs (Output1 active-low, Output2 active-high), operating from 1.65V to 3.3V, consuming only 12.6µW at 1.8V, and rated for -40°C to +85°C - deployed in cellular phone flip detection and portable PC lid sensing.
For engineers reviewing the AH1888-ZG-7 datasheet, AH1888-ZG-7 pinout, AH1888-ZG-7 application, or AH1888-ZG-7 equivalent, key selection criteria include magnetic operate/release points (±61–79 G / ±35–53 G), chopper-stabilized temperature stability, dual-output polarity configuration, and SOT553 footprint compatibility with space-constrained battery-powered designs.
Technical Context
The AH1888-ZG-7 integrates two Hall plates and chopper-stabilized amplification to reject offset drift and enable stable switching across temperature and supply voltage variations. Its dual-output architecture allows simultaneous active-low and active-high responses to the same magnetic field event.
Sleep/awake logic reduces average current to 7–12µA, with 50–100µs wake time and 50–100ms sampling period. Magnetic hysteresis (3–8 G) prevents chatter near Bop/Brp thresholds, and ESD robustness exceeds 4kV HBM in SOT553.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.65V to 3.3V - supports single-cell Li-ion and coin-cell battery systems without regulation. |
| Quiescent Power | 12.6µW at 1.8V - enables multi-year operation in always-on proximity sensing nodes. |
| Operate Point (Bop) | ±61–79 Gauss - detects weak magnets at >3mm air gap in compact consumer enclosures. |
| Release Point (Brp) | ±35–53 Gauss - ensures clean turn-off with 3–8G hysteresis for noise immunity. |
| Output Configuration | Output1: open-drain active-low; Output2: push-pull active-high - eliminates need for external pull-ups in mixed-logic systems. |
| Temperature Range | -40°C to +85°C - qualified for handheld device internal environments under thermal cycling. |
| ESD Rating | ≥4kV HBM - protects against handling damage during SMT assembly of portable electronics. |
Pinout & Package
Package: SOT553 (1.7mm × 1.2mm × 0.6mm), surface-mount, lead-free, halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - Vdd | Power supply input | Accepts 1.65–3.3V; internal regulator not required; decoupling capacitor recommended. |
| 2 - Output1 | Active-low digital output | Open-drain, sinks ≥0.5mA; requires external pull-up for logic-high idle state. |
| 3 - GND | Ground reference | Common return for supply and outputs; must be low-impedance for stable Hall plate biasing. |
| 4 - NC | No-connect terminal | Internally unconnected; must remain floating - no routing or soldering permitted. |
| 5 - Output2 | Active-high digital output | Push-pull, drives high/low directly; compatible with 1.8V CMOS logic inputs. |
Key Features
| Feature | Design Value |
|---|---|
| Omni-polar magnetic sensitivity | Detects either north or south pole - simplifies mechanical magnet placement in clamshell devices. |
| Chopper-stabilized architecture | Reduces offset drift to <±0.5G/°C - maintains consistent Bop/Brp over full temperature range. |
| Dual independent outputs | Output1 (active-low) and Output2 (active-high) provide flexible interface options without external inverters. |
| Micropower sleep mode | Average current 7–12µA - extends battery life in always-monitoring lid-open/close applications. |
Applications
| Cellular Phone Flip Detection | Portable PC Lid Sensing |
|---|---|
Use Scenario: Detects hinge-based open/close state in smartphone clamshell or slider form factors. IC Role / Device Role / Timing Role: Hall switch providing edge-triggered logic-level signal to baseband processor GPIO. Use Value: Enables instant screen on/off with <100ms response latency and zero standby power draw beyond IC quiescent current. | Use Scenario: Monitors laptop lid position to trigger sleep/wake transitions in Windows/Linux OS. IC Role / Device Role / Timing Role: Dual-output Hall sensor feeding separate interrupt and status lines to EC (Embedded Controller). Use Value: Eliminates need for discrete inverter; Output1 wakes EC, Output2 confirms state - reducing BOM count by one component. |
| Camcorder Lens Cover Detection | Cordless Phone Base Station Presence |
Use Scenario: Confirms lens cap removal before enabling autofocus and image capture circuits. IC Role / Device Role / Timing Role: Proximity switch asserting enable signal to camera power management IC. Use Value: Prevents accidental activation; operates reliably at 1.8V supply with <0.2V VOL ensuring clean logic-low assertion. | Use Scenario: Detects handset docking in cradle to initiate charging and sync protocols. IC Role / Device Role / Timing Role: Magnetic presence detector interfacing directly with base station MCU via Output2 (push-pull). Use Value: Push-pull output drives 10kΩ MCU input without external components; ESD-hardened for repeated plug/unplug cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Hall effect switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ALLEGRO A3263LLHLT-T | Unipolar (south-only), single output, 2.5–36V supply, higher Bop (30–60G) | Requires stronger magnet; unsuitable for dual-output or low-voltage (<2.5V) systems | Select when wide supply range and unipolar simplicity outweigh micropower and dual-output needs. |
| MELEXIS US5881LUA-ABA-000-REEL | Omni-polar, single output, 2.7–24V, 3.5µA typical Idd, TO-92 package | Larger through-hole footprint; lacks active-high push-pull output | Choose for ultra-low-power legacy through-hole designs where SOT553 rework is impractical. |
Compared with A3263LLHLT-T and US5881LUA-ABA-000-REEL, the AH1888-ZG-7 uniquely delivers dual-output polarity, sub-13µW operation at 1.8V, and SOT553 miniaturization - making it optimal for next-gen compact, battery-sensitive consumer interfaces.
Availability
AH1888-ZG-7 is available at Aetrix Electronics and suitable for cellular phone flip detection, portable PC lid sensing, and camcorder lens cover monitoring requiring stable component supply and RoHS-compliant green packaging.
Supply support for AH1888-ZG-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 and manufacturing operations across Asia and the Americas.
The AH1888 belongs to Diodes' Hall-effect sensor product line, engineered specifically for ultra-low-power, space-constrained consumer electronics requiring reliable magnetic actuation without external support circuitry.
FAQ
What is the magnetic polarity requirement for AH1888-ZG-7 operation?
The AH1888-ZG-7 is omni-polar: it activates with either a north or south magnetic pole oriented toward the branded side of the package. Operate points range from ±61–79 Gauss, and release points from ±35–53 Gauss - verified per DS31565 Rev. 8-2 magnetic characterization curves.
Can Output1 and Output2 be used simultaneously in the same system?
Yes - Output1 (open-drain active-low) and Output2 (push-pull active-high) are electrically independent and respond synchronously to magnetic field changes. They share the same Bop/Brp thresholds and timing behavior, enabling dual-signal interface without cross-talk or delay skew.
Is an external pull-up resistor required for AH1888-ZG-7?
An external pull-up is required only for Output1 (pin 2), which is open-drain. Output2 (pin 5) is push-pull and drives both logic high and low directly. Typical pull-up values range from 10kΩ to 100kΩ depending on rise-time and bus capacitance requirements.
Does AH1888-ZG-7 support operation below 1.65V?
No - the absolute minimum supply voltage is 1.65V per the Recommended Operating Conditions table. Operation below this threshold may result in undefined output states, increased jitter, or failure to sample magnetic fields reliably, as confirmed by functional testing in DS31565 Section 4.
AH1888-ZG-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-553
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Omnipolar Switch
- Technology:
- Hall Effect
- Polarization:
- North Pole, South Pole
- Sensing Range:
- ±7.9mT Trip, ±3.5mT Release
- Test Condition:
- 25°C
- Voltage - Supply:
- 1.65V ~ 3.3V
- Current - Supply (Max):
- 12µA
- Current - Output (Max):
- -
- Output Type:
- Push-Pull
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-553
AH1888-ZG-7 FAQ
1.How can I place an order for AH1888-ZG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AH1888-ZG-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 AH1888-ZG-7 reliable?
The price and inventory of AH1888-ZG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AH1888-ZG-7 is usually 5 days.
3.What payment methods are accepted for AH1888-ZG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AH1888-ZG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AH1888-ZG-7?
AH1888-ZG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AH1888-ZG-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 AH1888-ZG-7?
For technical support, including AH1888-ZG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AH1888-ZG-7 requirements.
6.How does Aetrix verify that AH1888-ZG-7 is sourced from the original manufacturer or authorized distributors?
All AH1888-ZG-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 AH1888-ZG-7 meets industry standards.
7.What is the process for return or replacement of AH1888-ZG-7?
All AH1888-ZG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AH1888-ZG-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 AH1888-ZG-7 part is unused and in its original packaging.
Return procedure for AH1888-ZG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AH1888-ZG-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…
