TSCR420_datasheet_en.pdf The Taiwan semiconductor linear constant current led driver are Low-Side Constant Current Regulator (CCR) for linear LED driving. The device regulates with a preset 10mA nominal that can be adjusted with an external resistor up to 300mA. Device temperature grade 1: -40°C to 125°C Device HBM ESD classification level H2 Device CDM ESD classification level C8