Found 6 alternatives for TLX9378(TPL,F by Toshiba Semiconductor and Storage. Optoisolators Logic Output — 6-SOIC (0.179", 4.55mm Width), 5 Leads.
OPTOISO 3.75KV PUSH PULL SO6-5
OPTOISO 3.75KV TRI-STATE SO6
IC COUPLER; 4-PIN SO6; AECQ; ROH
OPTOISO 3.75KV PUSH PULL SO6-5
HIGH SPEED PHOTOCOUPLER; 5PIN SO
OPTOISO 3.75KV PSH PULL SO6-5