Offering AC and DC inputs respectively, the TLP290-4 and TLP291-4 are general-purpose transistor couplers that integrate four output channels into a small and thin SO16 package measuring just 10.3 x 7.0 x 2.3mm. Each device has a minimum isolation voltage rating of 2500Vrms and is guaranteed to operate across an extended temperature range of -55°C to 110°C.
The TLP290-4 and TLP291-4 are built around four photo transistors, each of which is optically coupled to a gallium arsenide infrared LED. Both couplers are rated for a minimum collector-emitter voltage of 80V and have a current transfer ratio ranging from a minimum of 50% up to 400%.
As well as new designs, the TLP290-4 and TLP291-4 also offer a simplified migration path for existing applications based on their predecessors, Toshiba’s TLP280-4 and TLP281-4 devices. This is because the new SO16 packages have the same reference pad dimensions as the SOP16 package used with the previous models.
• A photocoupler may also be referred to as an optocoupler