JYM27270 Full-Polarity to Unipolar Low-Power Hall Effect Switch Sensor with Memory Function
The JYM27270 is a high-sensitivity, low-power, memory-equipped Hall-effect switch chip introduced by Guangshen Microelectronics. Fabricated using 0.18μm BCDMOS technology, it supports a wide operating voltage range of 1.65V to 5.5V with an average current as low as 1μA, making it suitable for low-power magnetic field detection applications in consumer electronics, smart homes, portable devices, and similar scenarios.
Core Product Advantages
● Full pole to single pole memory function, locked after power on to identify polarity, stronger anti-interference ability
● Micro power design, with an average operating current of only 1.0 μ A at 3.3V in the 5Hz version
● Wide voltage range of 1.65V~5.5V, suitable for battery powered equipment
● High sensitivity Bop=30Gs, BRP=20Gs, built-in temperature compensation
● ESD ± 6kV, push-pull/open drain dual output optional
● Compact SOT23-3L and TO-92S packaging, compliant with RoHS
Key parameter table
| parameter | symbol | typical value | unit |
|---|
| Operating voltage | VCC | 1.65~5.5 | V |
| Average working current(5Hz) | ICC | 1.0 | μA |
| Operating point | Bop | 30 | Gs |
| Brp | BRP | 20 | Gs |
| BHYS | BHYS | 10 | Gs |
| ESD | VESD | ±6 | kV |
| Operating Temperature | TA | -40~85 | ℃ |
Pin definition
SOT23-3L(SO)：1 Pin VCC，2 Pin OUT，3 Pin GND
TO-92S(UA)：1Pin VCC，2Pin GND，3Pin OUT
VCC：power input，1.65V~5.5V；GND：GND Ground；OUT：signal output
Package size
SOT23-3L：long 3.0mm，wide 2.8mm，Pin pitchg 1.7mm
TO-92S：total length 15.5mm，Chip package diameter 2.57mm，pin pitch 1.3mm
SIMPLIFIED BLOCK DIAGRAM AND TYPICAL APPLICATIONS
SIMPLIFIED BLOCK DIAGRAM：Power-on reset → Voltage stabilization → Control logic → Oscillation → Bias → Hall board → Amplification comparison → Output drive
Push-pull output application: VCC connected to power supply, OUT directly connected to main control, GND grounded, and connected in parallel with a 0.1μF decoupling capacitor
Open-drain application: OUT is externally connected to a 1~10kΩ pull-up resistor, and the rest is the same as the push-pull circuit
Application scenarios
Smartphones, tablet computers, laptops, digital cameras
Toys, game consoles, household appliances, solid-state switches
Low-power portable devices, battery-powered detection devices
Order Information
JYM27270DAESOAR：SOT23-3L，push-pull，5Hz，3000 Pieces/Volume
JYM27270DBESOAR：SOT23-3L，open drain，5Hz，3000 Pieces/Volume
JYM27270DAEUAAM：TO-92S，push-pull，5Hz，1000 Pieces/Volume
JYM27270DBEUAAM：TO-92S，open drain，5Hz，1000 Pieces/Volume
Replacement and advantage comparison of similar products
Replaceable：AH277、TMR1202、DRV5032、A3212 Etc Single-pole/full-pole Hall switch
Advantage 1: Unique full-pole to single-pole memory function, with polarity locking for better anti-interference
Advantage 2: 1.65V low-voltage startup, more suitable for coin cell battery power supply
Advantage 3: With an average current of 1μA, its power consumption is lower than that of most similar models on the market
Advantage 4: Built-in temperature compensation ensures stable parameters across the entire temperature range
Advantage 5: Dual-package and dual-output, adapting to more structures and circuits
JYM27270 Typical Applications
The JYM27270, a full-pole to single-pole micro-power Hall switch sensor with memory function, is widely used in low-power magnetic field detection, magnetic attraction sensing, position detection, and non-contact switching scenarios. It features a simple circuit, strong stability, and is suitable for battery-powered devices.
Typical application circuit
Push-pull output application: Connect VCC to a power supply ranging from 1.65V to 5.5V, ground GND, directly connect OUT to the main control IO port, and connect a 0.1μF decoupling capacitor in parallel between VCC and GND. No pull-up resistor is required, making the design simple and reliable.
Open-drain application: Connect VCC to a power supply ranging from 1.65V to 5.5V, ground GND, externally connect a 1kΩ to 10kΩ pull-up resistor to OUT, and connect a 0.1μF decoupling capacitor in parallel between VCC and GND. This configuration is suitable for multi-level systems and long-distance transmission.
Typical application scenarios
Magnetic opening and closing detection and sleep-wake-up for smartphones, tablet computers, and laptops
Low-power location sensing and non-contact switching for digital cameras and handheld devices
Magnetic field triggering, motion sensing, and counting detection for toys and game consoles
Magnetic door locks, flip detection, touch sensing, and solid-state switches for household appliances
Battery-powered portable devices, low-power meters, and IoT terminal magnetic field detection
Overview of typical application parameters
| Application Project | Typical parameters |
|---|
| Operating Voltage | 1.65V~5.5V |
| Average operating current | 1.0μA（3.3V/5Hz） |
| Magnetic operating point | 30Gs |
| BRP | 20Gs |
| Output method | Push-pull/open-drain |
| Operating Temperature | -40℃~85℃ |
| Package form | SOT23-3L / TO-92S |
Typical application advantages
Fully-pole power-on induction, memory lock for single pole, and stronger anti-interference capability
Low-power design, long battery life, suitable for battery-powered products
Wide voltage operation, compatible with systems at 1.8V/2.5V/3.3V/5V
High sensitivity and temperature compensation, with stable and consistent performance across the entire temperature range
Small package, suitable for compact structures and portable device installation
Company Introduction
GSMicro Semiconductor (Shenzhen) Co., Ltd. (hereinafter referred to as "GSMicro") was established in 2023. Its predecessor, LUMENCHIP, was founded in 2010. Headquartered in Shenzhen, the capital of technology, Guangsheng Micro is a leading brand in analog chip integration services, focusing on the technology and product implementation of mixed-signal chips since its inception, and promoting the development of green intelligent technology.
GSMicro integrates excellent models and channels from both domestic and overseas markets, breaking away from traditional independent distribution and agency models. We have established a dual model that combines hybrid agency distribution, market analysis and forecasting, technical solution services, and one-stop supporting supply, offering greater vitality. Our agency lines coexist with our own brands, and our distribution lines coexist with our supporting supply. The three complement each other, creating a unique style. Our mission is to serve you wholeheartedly and meet your needs. We aim to provide innovative and customized products and services to global customers, helping them achieve sustainable profitability and success, and shaping the future of their markets. We engage in in-depth communication with our customers, offering unique design perspectives and providing competitive and comprehensive solutions and products. We conduct independent research and development, targeting leading enterprises in various electronic sub-sectors, offering a range of power management and intelligent control solutions. Our agency & distribution and solution services lead the industry.
GSMicro boasts the most comprehensive solution portfolio in the industry, encompassing MCU, power management chips, AI chips, signal chain chips, and power devices. Its diverse range of products covers signal processing, voice wake-up, voice recognition, voiceprint recognition, voice synthesis, knowledge graph, natural language processing, and intelligent dialogue. Leveraging its robust marketing planning capabilities and extensive professional market operation experience, GS Micro has secured authorized partnerships with major companies such as DONGWOON, PowTech, CR MICRO, CRHJ, APM, COOLSEMI, ANHI, Reasunos, OCX, MassChip, XLSEMI, Hichips, NSIWAY, EGmicro, Relmon/Ruimeng, ChipWays, AISPEECH, Aerosemi, and JIUYOUMicro.
GSMicro adheres to the corporate values of "putting the strivers first, focusing on customers, and persisting in value contribution". It focuses on the technology and product implementation of agent chips, promotes the sustainable development of green intelligent technology, and leads the global semiconductor segment in agent distribution and application solutions.
Corporate website：http://huimai2.com
