Toshiba launches high noise immunity 800V couplers

The TLP3782 and TLP378 zero-crossing devices provide minimum isolation voltages of 5000Vrms between sensitive logic and AC currents. Each device is rated for typical impulse noise durability of 1500V.

Toshiba’s new photocouplers consist of a GaAlAs LED that is optically coupled to a triac output photocoupler and can be used to control current in both forward and reverse directions. Minimum peak off-state voltage is rated at 800V.

Maximum trigger LED currents for the TLP3782(S) and TLP3783(S) are 10mA and 5mA respectively. Input forward current is rated at 30mA, and maximum on-state current is 100mA (at 25ºC).

The two devices are housed in a compact 6-pin DIP package measuring just 7.1mm x 6.4mm x 3.6mm and are designed to meet UL and reinforced insulation class VDE international safety standards. Each photocoupler will operate at temperatures ranging from -40ºC to 100ºC.