The TLP291(GB-TP,SE(O with Optocouplers SO-4 RoHS manufactured by Toshiba is an isolated bidirectional DC/DC converter that provides transmission of signals between different operating power supplies, even with different ground potentials. It offers low power consumption via a photocoupler, has low standby power consumption, and provides isolation between input and output circuits. The optocoupler and SO-4 RoHS package make it suitable for surface mount applications. It has an operating temperature range of -40° C to +85° C and a wide input voltage range of 6.5 V to 55 V, making it suitable for a range of applications.