WCM3720A Datasheet, PDF (1/4 Pages) Winson Semiconductor Corp. – AC Sensing Current Module with Digital Data output

WCM3720A
AC Sensing Current Module with Digital Data
output
Feature
˙ Operating Voltage: 4.0 V ~12.0 V for Vcc
˙ Isolation Voltage 4KV
˙ Digital current data output, easy interface with
MCU (UART communication)
˙ Baud Rate: 2.4K bps
˙ Internal regulated voltage for sensor
˙ Measurement range: 0 ~ 20 A
˙ Built-in LCD driver
˙ Resolution: I < 10A: 1 mA
I ≧ 10A: 10 mA
˙ Accuracy (0 ～ 20A): 80mA~± 5%
˙ Can setting 1~15A over-current protection
control
˙ Calibrated by 5V,could customize different
voltage calibration
˙ Provide 3.3V operating module
Application
AC Current meter
Current Protector
L x W x H = 37mm x 26mm x 22mm
General Description
The Winson WCM3720A provides economical and precise solution for AC current sensing in industrial,
commercial and communications systems. The unique package allows for easy implementation without
breaking original system and make current sensing possible. Typical applications include load detection and
management, over-current fault detection and any intelligent power management system etc…
The WCM3720A consists of a current sensor and a very high accuracy A/D converter, power on/off switch,
digital signal of current and a setting current over control output and an internal regulator for sensor.
The WCM3720A includes a current sensor with a diameter 9mm hole, users can just use system’s own
electric wire by pass it through this hole to measure passing current without breaking original system, user’s
MCU can get the real data from DATA pin.
The WCM3720A can set 1~15A over-current indicator, detail description can refer to the Iset Table.
Winson reserves the right to make changes to improve reliability or manufacturability.
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