JYM27114 Three-Wire Voltage Mode Unipolar Hall-Effect Switch Sensor – Industrial-Grade High-Reliability Magnetic Sensing Solution

Keywords: JYM27114, Unipolar Hall-Effect Switch Sensor, Three-Wire Voltage Mode Hall Switch, Industrial-Grade Hall IC, BCDMOS Hall Sensor, BLDC Motor Hall Switch, Hall Switch Replacement

GS-Micro JYM27114 is a three-wire voltage mode unipolar Hall-effect switch sensor manufactured using advanced 0.18μm BCDMOS process. Designed specifically for harsh industrial environments, it integrates full-function circuits including voltage regulation, temperature compensation, and multiple protection modules. It features wide voltage, wide temperature range, low power consumption, high precision, and strong anti-interference capability. It can directly replace mainstream unipolar Hall switches on the market with comprehensive upgrades in performance, reliability, and compatibility, making it the preferred magnetic sensing solution for industrial automation, motor control, and intelligent sensing applications.

Core Advantages for Industrial-Grade Reliability

1. Wide Voltage & Temperature Range for Extreme Environment Stability

JYM27114 supports an ultra-wide operating voltage of 2.8V~24V, compatible with 3.3V/5V/12V/24V industrial power systems without additional voltage conditioning circuits, greatly simplifying hardware design. Its junction temperature range reaches -40℃~150℃, ensuring stable operation in high and low temperature industrial environments. With a built-in temperature compensation circuit for magnetic switching points, variations with temperature and supply voltage are minimized, maintaining stable detection accuracy across the full temperature range.

2. Low Power & High Integration for Easier Development

The device features a typical operating current of only 1.8mA, reducing system power consumption for battery-powered and low-power industrial equipment. It highly integrates voltage regulation, under-voltage lockout, signal amplification, offset compensation, output driver, and current limiting protection. Mechanical stress has negligible impact on magnetic parameters, requiring minimal external circuitry and direct connection to MCU GPIO, shortening development and debugging cycles.

3. Multiple Protections & High Immunity for Longer Lifespan

Built-in over-temperature protection, reverse polarity protection, output current limiting protection with 43mA current limit effectively prevent damage from short circuits, overcurrent, and reverse power connection. ESD protection reaches ±8kV with excellent EMI immunity, ensuring stable operation in high-interference industrial environments such as inverters and motors, improving system reliability and service life.

4. High-Precision Magnetic Conversion for Accurate Triggering

Key magnetic sensitivity: BOP=120Gs, BRP=90Gs, with magnetic hysteresis BHYS of 20~40Gs to avoid false triggering from magnetic fluctuation and vibration. The output is open-drain NMOS with 1.0μs rise time and 0.5μs fall time, enabling fast response to high-speed magnetic changes for high-frequency speed and position detection.

5. RoHS-Compliant Packages for Flexible Production

Available in TO-92S (JYM27114UA) and SOT23-3L (JYM27114SO) packages. TO-92S suits manual assembly, while SOT23-3L is ideal for SMT automation. Pinout is compatible with mainstream models for direct replacement without PCB redesign. Fully compliant with RoHS (EU)2015/863 for global green manufacturing.

Key Specifications for Stable Performance

Electrical Parameters (Test Condition: Vcc=2.8V~24V, TJ=-40℃~150℃)

Operating Current: 1.5~2.5mA (Typ. 1.8mA), low power for various supplies

Output Low Voltage: ≤0.4V, compatible with digital logic systems

Output Leakage Current: ≤10μA, negligible power in high-impedance state

Output Current Limit: 43mA (VOUT=12V), protects downstream circuits

Response Speed: 1.0μs rise, 0.5μs fall, high-speed detection

Magnetic Hysteresis: 20~40Gs, anti-vibration and anti-fluctuation

ESD Protection: ±8kV (HBM), excellent electrostatic immunity

Absolute Maximum Ratings: VCC -34V~36V, Iout -40~50mA, high surge immunity

Pin Definition (Pin-to-Pin Compatible with Mainstream Packages)

TO-92S (UA): Pin1 VCC, Pin2 GND, Pin3 OUT

SOT23-3L (SO): Pin1 VCC, Pin2 OUT, Pin3 GND

Direct Replacement for Mainstream Models with Superior Performance

JYM27114 is fully pin-to-pin compatible with mainstream unipolar Hall switches and enables direct replacement without circuit modification, with upgrades in temperature range, power consumption, protection, and accuracy. Key compatible models and advantages are listed below:

Note: The above are mainstream unipolar Hall switches. JYM27114 maintains full pin compatibility while improving voltage range, temperature, power consumption, and protection, significantly enhancing equipment performance and reliability.

Wide Industrial Applications

With high reliability, easy integration, wide compatibility, and direct replaceability, JYM27114 is widely used in industrial automation, power tools, smart sensing, and automotive auxiliary electronics. Typical applications include:

1. 3-Phase BLDC Motor Commutation: Rotor position sensing for power tools, fans, pumps, and home appliances; dust and vibration resistant, more durable than optical encoders.

2. Speed & Proximity Detection: Tachometers, conveyor monitoring, limit switches, non-contact sensing with no mechanical wear.

3. Flow Sensors: Impeller speed detection for water/gas meters and industrial flow meters.

4. Linear & Angular Position: Cylinder, valve, stage, and door/window position detection with fast digital output.

5. Solid-State Switches: Contactless industrial switches replacing relays with no arcing and fast response.

6. Other Industrial Uses: Material detection, elevator limit, e-bike speed control, suitable for harsh environments.

Simple Application & Fast Integration

JYM27114 is a standard 3-wire device (VCC, GND, OUT) with open-drain NMOS output, requiring an external pull-up resistor for operation. Key application guidelines:

Standard Application (Low Noise Environment)

External pull-up resistor RL=1kΩ~10kΩ, decoupling capacitor CP=10nF between VCC-GND, CL=4.7nF between OUT-GND, placed close to the chip to reduce interference.

Noise-Resistant Application (Inverters, Motors, High EMI)

Add series resistor R1=100Ω at the power input to form an RC filter with CP, suppressing voltage ripple and electromagnetic noise for improved stability.

Application Notes

1. Magnet: Use permanent magnet with S-pole facing the sensing area, field ≥120Gs (BOP).

2. ESD Protection: Proper ESD handling required during soldering and assembly.

3. Layout: Keep power, ground, and output traces short and separated to reduce coupling.

4. Replacement: Direct drop-in replacement without changing external passives.

Ordering Information

JYM27114 is available in two industrial-grade packages with junction temperature -40℃~150℃. Ordering details:

Top Marking Information

Marking includes part number (2711X), lot code, and package code, e.g., “2711X 512UA”, where 512 represents week 12 of 2025, UA for TO-92S.

About GSMicro

GSMicro Semiconductor (Shenzhen) Co., Ltd. specializes in R&D, production, and sales of industrial-grade semiconductor sensors. With mature BCDMOS technology, its products cover Hall sensors, power devices, and intelligent sensing ICs, providing reliable, cost-effective solutions for industrial automation, new energy, smart hardware, and automotive auxiliary electronics.

The company offers a professional R&D and support team with 24-hour technical service and customized magnetic sensing solutions. All products undergo strict reliability testing with stable quality and stable supply chain, making it a preferred partner for industrial customers.