TLP557 Datasheet (Toshiba Semiconductor)

TLP557, Photocoupler

TOSHIBA Photocoupler IRED & Photo-IC Industrial Inverter Inverter for Air Conditioner Power Transistor Base Drive TLP557 The TOSHIBA TLP557 consists of an infrared emitting diode and an integrated photodetector.

This unit is 8-lead DIP package.

TLP557 is suitable for base driving circuit of power transistor module up to 20A.

External resistor needs to connect between pin 6 and pin 7.

This is for constant current driving.

TLP557 Unit: mm Input threshold current: IF = 5 mA (max)