Core Parameter Overview: JYM27123 is a 3-wire bipolar latching hall switch IC manufactured with mature 0.18μm BCDMOS wafer process. Wide operating voltage range: 2.8V~24V, typical quiescent supply current 1.8mA, symmetrical latching magnetic thresholds BOP=50Gs & BRP=-50Gs. ±8kV HBM ESD protection, operating junction temperature range -40℃~150℃. Triple built-in hardware protection: thermal shutdown, reverse supply voltage protection, output current limiting, plus on-chip magnetic threshold temperature compensation. Two package options: TO-92S through-hole & SOT23-3L SMD, fully RoHS (EU) 2015/863 compliant. Widely adopted for 3-phase BLDC motor commutation, speed detection, flow measurement, reciprocating position limit, portable lithium power tools and miniature equipment position feedback. As authorized tier 1 distributor of JIUYOU MICRO, GS-Micro supplies genuine factory spot stock, free engineering test samples, complete official datasheets and two standard reference application circuits for global OEM & ODM buyers.
JYM27123 3-Wire Wide-Voltage Bipolar Latching Hall Switch IC
Product Description
The JYM27123 series is a highly reliable bipolar latching hall switch sensor IC fabricated via advanced 0.18μm BCDMOS wafer technology. The monolithic die integrates full analog & digital signal chain circuits: voltage regulator, under-voltage lockout (UVLO), signal amplifier, offset cancellation, magnetic switching threshold temperature compensation, voltage comparator, output driver and output current limiter. Mechanical stress induces negligible magnetic parameter drift, delivering superior EMI immunity and long-term operational stability under wide high-low temperature industrial & automotive lighting working conditions.
It supports universal industrial DC supply from 2.8V to 24V, with operating junction temperature spanning -40℃ up to 150℃, perfectly matching harsh high-temperature environments of miniature industrial equipment, portable lithium power tools and small automotive lamp assemblies. Two standardized packages are available: TO-92S through-hole and SOT23-3L surface mount device. Both packages fully comply with RoHS (EU) 2015/863 environmental directive to meet global export compliance requirements for all motor, lighting and consumer OEM manufacturers.
Key Product Advantages: Mature 0.18μm BCDMOS wafer fabrication process｜2.8V~24V ultra-wide industrial & automotive input voltage｜Low typical quiescent current 1.8mA low power consumption｜Symmetrical latching magnetic thresholds BOP=50Gs / BRP=-50Gs, optimized for 3-phase BLDC motor commutation｜±8kV HBM human-body model ESD electrostatic protection｜Wide junction temperature range -40℃~150℃ high temperature resistant｜3-fold integrated hardware protection: thermal shutdown, reverse power supply polarity protection, output current limiting｜Minimal magnetic threshold drift against supply voltage fluctuation｜On-chip magnetic switching point temperature compensation circuit｜Dual package options: TO-92S through-hole / SOT23-3L SMD｜RoHS (EU) 2015/863 compliance｜Industrial grade, ideal for miniature equipment, small BLDC motors, portable power tools, micro-magnet weak proximity sensing & automotive auxiliary lighting assemblies
JYM27123 Key Electrical Specifications (Ta=25℃ Ambient Temperature)
| Parameter Name | Symbol | Specifications | Unit |
|---|
| Wafer Process Technology | – | 0.18μm BCDMOS | – |
| Operating Supply Voltage | VDD | 2.8 ~ 24 | V |
| Typical Quiescent Current | ICC | 1.8 | mA |
| Magnetic Operate Point | BOP | 50 | Gs |
| Magnetic Release Point | BRP | -50 | Gs |
| HBM ESD Protection Rating | VESD | ±8 | kV |
| Operating Junction Temperature Range | Tj | -40 ~ 150 | ℃ |
| On-Chip Protection Functions | – | Thermal Shutdown, Reverse Polarity Protection, Output Current Limiting | – |
| Available Package Types | – | TO-92S, SOT23-3L | – |
| Environmental Compliance Standard | – | RoHS (EU) 2015/863 | – |
Important Notice: Never input supply voltage over the maximum 24V rating, overvoltage will cause permanent irreversible IC damage. SOT23-3L SMD package is recommended for enhanced PCB thermal dissipation under continuous high-temperature operation of high-power BLDC motor equipment. This model features bipolar latching structure with positive/negative magnetic field trigger & reset, dedicated hall device for 3-phase brushless motor commutation; 50Gs standard magnetic threshold matches regular motor magnet collocation.
IC Package Marking Sample
SOT23-3L marking code: SO; TO-92S marking code: UA
JYM27123 IC Internal Functional Block Diagram
Internal circuit modules: Power regulator unit, under-voltage lockout circuit, hall sensing element, offset cancellation circuit, magnetic threshold temperature compensation circuit, signal amplifier, voltage comparator, output driver stage, output current limiting protection, thermal shutdown protection, reverse input voltage protection circuit.
Two Sets of Standard Typical Application Circuits
Application Circuit 1: Basic Standard Wiring Reference Schematic
Recommended load resistance RL: 1kΩ~10kΩ, power supply decoupling capacitor CP=10nF, output filter capacitor CL=4.7nF. Mount all capacitors as close as possible to IC pins to suppress high-frequency switching noise and stabilize latching magnetic switching without jitter.
Application Circuit 2: Anti-EMI Noise Suppression Solution for Disturbed Power Rails
Designed for industrial equipment with severe BLDC motor EMI interference & large power supply ripple. Add series current-limiting resistor R1=100Ω on VDD input, parallel CP=10nF between supply pin and GND, parallel CL=4.7nF between output pin and GND. Place all capacitors adjacent to IC pins to greatly improve system EMI immunity and avoid false magnetic state flip during motor operation. Recommended parameters: R1=100Ω, CP＝10nF, CL＝4.7nF.
Installation Operation Guidelines: Wear ESD wrist strap throughout soldering process for full electrostatic discharge protection. Align the IC sensing surface facing the motor magnet pole; bipolar latching hall relies on N/S poles for set & reset respectively. Add large-area copper pour on PCB layer for thermal dissipation under long-term continuous high-temperature working conditions.
Ordering Part Numbers, Packages & Standard Tape-and-Reel Specifications
| Package Type | Operating Temperature Range | Complete Order PN | Standard Packaging Format | Package Marking Code |
|---|
| TO-92S Through-Hole | -40℃ ~ 150℃ | JYM27123UA | Tape and Reel, 1000 PCS per reel | UA |
| SOT23-3L SMD | -40℃ ~ 150℃ | JYM27123SO | Tape and Reel, 3000 PCS per reel | SO |
Typical Application Market Segments
● Industrial contactless solid-state magnetic limit switches
● 3-phase small BLDC motor commutation position sensing (core motor application)
● Lithium battery portable power tools & mini garden equipment motor position feedback
● Magnetic flow sensors for micro liquid & gas flow monitoring
● Miniature tachometers & low RPM rotation speed detection devices
● Small object long-distance proximity sensors & presence detection switches
● Micro linear displacement & low-magnetism rotational angle position sensing
● Automotive interior & auxiliary exterior lighting position feedback sensors
FAQ Common Technical & Global Procurement Inquiries
Q1: Can JYM27123 be directly powered by 24V industrial DC power supply?
A1: Yes, the IC maximum supply rating is 24V and runs stably under no-load 24V input. Small BLDC motor equipment generates frequent voltage spikes, an RC filter circuit is strongly recommended to prevent IC breakdown and weak magnetic false triggering caused by high-voltage pulses.
Q2: Can the IC operate continuously inside high-temperature mini motor housings at rated 150℃ junction temperature?
A2: 150℃ only serves as transient peak rating. For long-term continuous operation above 140℃ junction temperature, select the SOT23 SMD package and expand PCB copper pour area for better heat dissipation performance.
Q3: What is the selection difference between bipolar latching hall (JYM27123) and unipolar hall (JYM27111 / JYM27112 / JYM27113)?
A3: JYM27123 is bipolar latching type, requiring N & S pole magnetic fields for separate trigger and reset, suitable for 3-phase BLDC motor commutation and speed counting; unipolar hall only responds to single-pole magnetic field, mostly used for one-way proximity detection and micro weak magnetic sensing. Latching type is prioritized for motor commutation scenarios.
Q4: Will reversed VDD & GND polarity instantly destroy the hall IC?
A4: Built-in reverse polarity protection avoids damage during short-duration reverse connection. Long-term reverse power supply is not suggested, which will shift electrical parameters and deviate magnetic latching threshold, leading to motor step loss and commutation disorder during operation.
Q5: How to request free samples, official datasheets and reference schematic files?
A5: Contact our global sales hotline +86 180 1870 3531, mark part number JYM27123. We supply free original factory engineering test samples, complete official datasheets and two sets of standard hardware application schematics upon client request.
About GS-Micro Semiconductor
Founded in 2023 with predecessor Lumenchip established in 2010, GS-Micro Semiconductor (Shenzhen) Co., Ltd. is headquartered in Shenzhen, a professional tier-1 authorized electronic component distributor. We integrate authorized IC distribution, customized hardware technical solutions and one-stop full BOM material supply service for worldwide OEM & ODM manufacturers of motors, industrial control and lighting.
We hold tier-1 distribution authorization from dozens of IC manufacturers including JIUYOU MICRO, DONGWOON Korea, CR MICRO, ASR Microelectronics and more. Our product portfolio covers full-gradient 25/40/70/120Gs unipolar hall sensors, 50Gs bipolar latching hall sensors, VCM driver ICs, power management ICs, power discrete devices and AI voice processing chips. We deliver complete hardware supporting solutions for industrial miniature equipment, portable consumer goods, automotive auxiliary lighting and IoT industries globally.
Core Corporate Values: People-Oriented, Customer-Centric, Focus on Value Delivery. Full series hall ICs are stocked with sufficient genuine factory inventory with stable lead time. Free professional hardware technical support is available for all global buyers.
Official Website: https://www.gs-micro.com
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