MagnTek· New product | A new generation of current detection chip for frequency converter and energy storage -MT9523
The MT9523 chip is MagnTek's latest generation current detection chip, which is a fully integrated design based on Hall effect isolated linear current sensor chip.
| Packaging form
| Product Introduction
MT9523 consists of a precision, low drift linear Hall circuit and a built-in low insertion resistance current conductor. The external current flowing through this low resistance current conductor path generates a magnetic field, which is converted into a voltage signal output proportional to the input current by the chip. In order to effectively suppress the external common mode magnetic field, differential current detection technology is used in the design to improve the accuracy in magnetic noise environments. The chip's accuracy is improved by optimizing the sub signal-to-noise ratio. A Hall chip with low drift and stable chopping based on BCD technology can provide accurate proportional voltage, which is also precisely calibrated during manufacturing. The typical internal resistance value of the conductive path is 1m Ω, which can achieve low energy consumption. The terminals and signal lines of the conductive path are electrically isolated to meet the requirements of high-end current detection applications, eliminating the need for other expensive isolation techniques.
| Application Circuit
1. Customers can choose between two power versions: 3.3V and 5V
2. Customers can choose between two output modes: fixed output mode and proportional output mode
Any combination of the above two options
| Product Features
》Measurement range 0A~± 50A
》Supply voltage 3.3V/5V
》Insulation withstand voltage 2500vrms
》Response time<2.2us
》High speed bandwidth 250KHz
》Non linearity<± 0.3%
》Accuracy<± 1.5%
》Current side input resistance 1.0m Ω
》The chip comes with a reference terminal output
》Dual Hall disk design, common mode magnetic field suppression capability
| Selection Guide
