Toshiba Electronics Europe has expanded its photocoupler portfolio with the addition of two AC input logic-IC couplers. Both are capable of data transmission rates up to 5Mbit/s. The TLP2095 and TLP2098 are suitable for use in programmable logic controllers, communications equipment, digital interface circuits and other applications where a combination of high-speed data transmission, electrical isolation and low power operation is required, says the company. Designed to support supply voltages from 3 to 20V, the couplers provide buffer logic and inverter logic totem pole outputs, respectively. Maximum switching time is 250ns, and the devices operate at temperatures between -40 and +100ºC. The minimum isolation rating for each device is 3750Vrms and internal Faraday shields provide common mode transient immunities of ±15kV/µs. Both of the photocouplers are supplied in a compact MFSOP package which measures 4.4x3.6x2.5mm. Each package integrates two GaAlAs infrared LEDs that are optically coupled to a high-gain, high-speed photodetector. A maximum input threshold current of ±3mA and a maximum operating current of 3mA make the couplers suitable for power-sensitive applications where power budgets need to be kept to a minimum.
