Core Parameter Overview: JYM27122 is a 3-wire low-threshold bipolar latching hall switch IC fabricated with mature 0.18μm BCDMOS wafer process. Wide operating voltage range: 2.8V~24V, typical quiescent supply current 1.8mA, symmetrical low latching magnetic thresholds BOP=30Gs & BRP=-30Gs. ±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 miniature 3-phase BLDC motor commutation, low-speed tachometer detection, micro flow measurement, reciprocating position limit, lithium portable 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.
JYM27122 3-Wire Wide-Voltage 30Gs Bipolar Latching Hall Switch IC
Product Description
The JYM27122 series is a highly sensitive low-threshold bipolar latching hall switch sensor IC manufactured via advanced 0.18μm BCDMOS wafer technology. The monolithic die integrates full analog & digital signal chain circuits: voltage regulator, under-voltage lockout (UVLO), differential signal amplifier, offset cancellation, magnetic switching threshold temperature compensation, voltage comparator, push-pull 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 auxiliary lighting working conditions. Its 30Gs low magnetic threshold is optimized for miniature BLDC motors equipped with ultra-thin magnetic steel rotors.
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, lithium portable power tools and micro fluid flow detection devices. 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 compact 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 low latching magnetic thresholds BOP=30Gs / BRP=-30Gs, optimized for miniature BLDC motor ultra-thin magnet rotor design｜±8kV HBM human-body model ESD electrostatic protection｜Wide junction temperature range -40℃~150℃ high temperature resistant industrial grade specification｜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｜Low-sensitivity latching hall, ideal for miniature BLDC brushless motors, portable power tools, micro flow detection, reciprocating position limit assemblies
JYM27122 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 | 30 | Gs |
| Magnetic Release Point | BRP | -30 | 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 compact high-power BLDC motor equipment. This model features bipolar latching structure with positive/negative magnetic field trigger & reset, dedicated hall device for miniature 3-phase brushless motor commutation; 30Gs low standard magnetic threshold matches ultra-thin magnet rotor collocation for lightweight mini motor schemes.
IC Package Marking Sample
SOT23-3L marking code: SO; TO-92S marking code: UA
JYM27122 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 low-threshold latching magnetic switching without jitter.
Application Circuit 2: Anti-EMI Noise Suppression Solution for Disturbed Power Rails
Designed for industrial equipment with severe miniature 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 mini 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 mini 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℃ | JYM27122UA | Tape and Reel, 1000 PCS per reel | UA |
| SOT23-3L SMD | -40℃ ~ 150℃ | JYM27122SO | Tape and Reel, 3000 PCS per reel | SO |
Typical Application Market Segments
● Industrial contactless solid-state magnetic limit switches
● Miniature 3-phase small BLDC motor commutation position sensing (core lightweight 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 JYM27122 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. Compact 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 low-threshold bipolar latching hall (JYM27122), standard latching hall (JYM27123) and unipolar hall (JYM27111 / JYM27112 / JYM27113)?
A3: JYM27122 is bipolar latching type with low symmetrical 30Gs threshold, suitable for miniature BLDC motors with ultra-thin magnet rotors; JYM27123 is standard 50Gs latching hall for regular thick magnet high-power motors; unipolar hall only responds to single-pole magnetic field, mostly used for one-way proximity detection and micro weak magnetic sensing. Latching type JYM27122 is prioritized for lightweight low-magnet mini 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 JYM27122. 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 miniature 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, 30/50Gs 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
Page Keywords: JYM27122,bipolar latching hall switch,30Gs low symmetrical latching hall sensor,24V wide voltage hall IC,miniature 3-phase BLDC motor commutation hall chip,portable power tool latching hall,automotive auxiliary lighting position sensor,high temperature latching hall switch,TO92S SOT23-3L hall sensor,GS-Micro authorized tier 1 distributor
