ماژول CJMCU-758 یک
سنسور و یا اندازه گیر جریان است که با اثر هال کار می کند و می تواند تا جریان 50 آمپر را اندزه گیری و حس کند. این ماژول با اندازه گیری میزان جریان، خروجی از جنس ولتاژ دارد و به صورت خطی، با تغییر میزان جریان ولتاژ خروجی ان تغییر می کند و دارای دقت بالا و خطای کمی است.
سنسور ACS758 دارای سه پایه برای تغذیه، زمین و دریافت خروجی است.
Description:
The Allegro™ ACS758 family of current sensor ICs provides economical and precise solutions for AC or DC current sensing.
Typical applications include motor control, load detection and management, power supply and DC-to-DC converter control, inverter control, and overcurrent fault detection.
The device consists of a precision, low-offset linear Hall circuit with a copper conduction path located near the die.
Applied current flowing through this copper conduction path generates a magnetic field which the Hall IC converts into a proportional voltage. Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer.
A precise, proportional output voltage is provided by the low-offset, chopper-stabilized BiCMOS Hall IC, which is programmed for accuracy at the factory.
High level immunity to current conductor dV/dt and stray electric fields, offered by Allegro proprietary integrated shield technology, provides low output voltage ripple and low offset drift in high-side, high voltage applications.
The output of the device has a positive slope (>VCC/ 2) when an increasing current flows through the primary copper conduction path (from terminal 4 to terminal 5), which is the path used for current sampling. The internal resistance of this conductive path is 100 µΩ typical, providing low power loss
Application:
motor control
load detection and management
power supply and DC-to-DC converter control
inverter control
overcurrent fault detection
Specifications:
Current: 50A
Voltage: 3.3- 5V
Operating temperature: -40 ° C ~ 150 ° C
Industry-leading noise performance through proprietary
amplifier and filter design techniques
Integrated shield greatly reduces capacitive coupling from
current conductor to die due to high dV / dt signals, and
prevents offset drift in high-side, high voltage applications
Total output error improvement through gain and offset
trim over temperature
Small package size, with easy mounting capability
Monolithic Hall IC for high reliability
Ultra-low power loss: 100 μΩ internal conductor resistance
Galvanic isolation allows use in economical, high-side
current sensing in high voltage systems
120 kHz typical bandwidth
3 μs output rise time in response to step input current
Output voltage proportional to AC or DC currents
Factory-trimmed for accuracy
Extremely stable output offset voltage
Nearly zero magnetic hysteresis