TOSHIBA Photocoupler IRED + Photo IC TLP751F TLP751F Digital Logic Ground Isolation Line Receiver Microprocessor System Interfaces Switching Power Supply Feedback Control Analog Signal Isolation The TOSHIBA TLP751F consists of a high output infrared emitting diode and a high speed detector of one chip photo diode transistor. This unit is 8 lead DIP. TLP751F has internal base connection. This base pin should be used for analog application or enable operation. If base pi.