STMicroelectronics provides a recommended PCB layout in their application note AN2669, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize noise.
The ACS102-5TA-TR has a thermal pad on the bottom of the package, which should be connected to a thermal ground plane on the PCB to dissipate heat. A thermal interface material (TIM) can be used to improve heat transfer between the device and the PCB.
STMicroelectronics recommends using a low-pass filter with a cutoff frequency of around 100 kHz to 200 kHz to filter out high-frequency noise and ensure accurate current measurements. The filter configuration may vary depending on the specific application and noise environment.
The ACS102-5TA-TR requires calibration to ensure accurate current measurements. Calibration involves applying a known current to the device and adjusting the output voltage to match the expected value. STMicroelectronics provides a calibration procedure in their application note AN2669.
The ACS102-5TA-TR has a temperature coefficient of around 0.1% per degree Celsius, which means that the device's accuracy can be affected by temperature changes. It is recommended to use temperature compensation or calibration to ensure accurate measurements over a wide temperature range.
ACS102-5TA-TR datasheet
by STMicroelectronics
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