LEM Holdings provides a recommended PCB layout and thermal management guide in their application note AN-104, which can be requested from their technical support team. It's essential to follow these guidelines to ensure optimal performance and prevent overheating.
Calibration is not required for the HC5FW900-S/SP1, as it is a factory-calibrated device. However, it's recommended to perform a system-level calibration to account for any PCB or system-specific errors. LEM Holdings provides a calibration procedure in their application note AN-105.
The maximum allowable voltage drop across the HC5FW900-S/SP1 is 100 mV. A higher voltage drop can affect accuracy, so it's essential to ensure that the device is operated within the recommended voltage range. A voltage drop of more than 100 mV can lead to an error of up to 1% in current measurement.
The HC5FW900-S/SP1 is rated for operation up to 125°C. However, the device's accuracy and power rating are derated at higher temperatures. LEM Holdings provides a derating curve in their datasheet, which should be consulted to determine the maximum allowable current and power at elevated temperatures.
To ensure EMC, it's essential to follow proper PCB layout and design practices, such as using a solid ground plane, minimizing loop areas, and using shielding where necessary. LEM Holdings provides EMC design guidelines in their application note AN-106.
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