CPC5903GSTR – IXYS

The CPC5903GSTR, manufactured by IXYS, is a galvanically isolated I²C repeater housed in an 8-pin small outline surface mount (SMD) package. This device provides 3.75kVrms of isolation between the I²C bus segments, enabling robust communication across differing ground potentials and mitigating noise propagation. Functionally, the CPC5903GSTR buffers and repeats the I²C signals, extending the effective range and increasing the number of devices that can be supported on the bus. The repeater incorporates bidirectional channel isolation, allowing for seamless data transfer in both directions. Internal pull-up resistors are typically required on both sides of the isolation barrier to establish proper I²C bus voltage levels; external components may be needed to optimize performance based on specific bus loading and speed requirements. The device’s operating temperature range and power supply requirements should be carefully considered for integration into target applications.