SKU: SENS-0163
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Guoxin Jiapin Semiconductor LJ3405 Human Body Sensing Sensor - SOP-8 Package

₹12.00 (Inclusive of all taxes)
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The GUOXIN LJ3405 is a SOP-8 packaged human body sensing sensor IC designed for detecting physiological signals and body presence. It operates from a 3V to 6V supply, making it compatible with a wide range of microcontroller systems including Arduino, ESP32, and STM32 platforms for health monitoring and security applications.

Features

  • Human body sensing IC for presence and physiological signal detection.
  • Wide operating voltage range of 3V to 6V DC.
  • Compact SOP-8 surface-mount package for space-constrained designs.
  • Operating temperature range from -25°C to +60°C.
  • ROHS compliant for environmentally conscious manufacturing.

Out of stock

Description

The LJ3405 sensor IC from Guoxin Jiapin Semiconductor is a specialized integrated circuit designed for human body sensing applications. It functions by detecting changes in capacitance, infrared radiation, or other physical parameters associated with human presence or physiological activity, providing a digital or analog output signal for system integration.

Housed in a robust SOP-8 package, this sensor is engineered for reliable performance across an industrial temperature range. Its low-power design and standard CMOS/TTL logic compatibility make it suitable for integration into portable, battery-powered wearable devices and always-on security systems.

Key Features

  • Integrated human body sensing signal conditioning circuit.
  • Optimized for low-power operation in wearable and IoT devices.
  • Standard SOP-8 footprint for easy PCB assembly and prototyping.
  • Stable performance across a broad -25°C to +60°C operating range.
  • ROHS-compliant construction ensures lead-free and environmentally safe manufacturing.
  • High-sensitivity detection suitable for proximity and touch-based interfaces.

Applications

  • Wearable fitness trackers for activity and presence detection.
  • Proximity-activated security systems and automatic lighting controls.
  • Touch-sensitive control interfaces for consumer electronics.
  • Battery-operated IoT devices for smart home occupancy sensing.
  • Prototyping and educational projects involving human-machine interaction.

Technical Specifications

Manufacturer Part NumberLJ3405
ManufacturerGuoxin Jiapin Semiconductor
Operating Voltage3V to 6V DC
Operating Temperature-25°C to +60°C
Package / CaseSOP-8
ComplianceROHS

Frequently Asked Questions

What is the operating voltage range for the LJ3405 sensor?

The LJ3405 sensor IC operates from a supply voltage of 3 volts to 6 volts DC. This range makes it compatible with common 3.3V and 5V microcontroller logic levels, such as those found on Arduino, ESP32, and Raspberry Pi Pico boards, without requiring an additional voltage regulator.

What type of output signal does the LJ3405 provide?

As a sensing IC, the LJ3405 typically provides a processed digital or analog output signal corresponding to detected human presence or physiological activity. For precise signal type (e.g., digital high/low, PWM, or analog voltage), users must consult the official LJ3405 datasheet, as the output configuration is application-dependent.

How should I interface the LJ3405 SOP-8 chip with my microcontroller?

The LJ3405 in an SOP-8 package is a surface-mount device (SMD) designed for direct soldering onto a PCB. You will need to design a breakout board or use an SOP-8 to DIP adapter to connect its pins to a microcontroller's GPIO. Standard connections include power (VCC, GND), the output signal pin, and potentially configuration pins as defined in the datasheet.

Package Includes

  • 1 x LJ3405 SOP-8 Human Body Sensing Sensor IC

Additional Information

Weight 0.01 kg
Dimensions 10 × 8 × 3 cm