TLP7920,TLP7920F Photocouplers Optically Isolation Amplifiers TLP7920,TLP7920FTLP7920,TLP7920FTLP7920,TLP7920FTLP7920,TLP7920F 1. 1. ApplicationsApplications 1. 1. ApplicationsApplications Motor phase and rail current sensing Power inverter current and voltage sensing 2. 2. 2. 2. GeneralGeneralGeneralGeneral The TLP7920 and TLP7920F of isolation amplifiers is designed for current sensing in electronic motor drives. In a typical implementation, motor currents flow through an external resistor and the resulting analog voltage drop is sensed by the TLP7920 or TLP7920F. 3. 3. FeaturesFeatures 3. 3. FeaturesFeatures (1) Output side supply voltage: 3.0 to 5.5 V (2) Output side supply current: 6.2 mA (typ.) (3) Operating temperature range: -40 to 105 (4) Common-mode transient immunity: 15 kV/ s (min) 4. 4. 4. 4. Packaging (Note)Packaging (Note)Packaging (Note)Packaging (Note) TLP7920 TLP7920(LF1,TP1) TLP7920(LF5,TP5) 11-10C405S 11-10C4S 11-10C401S TLP7920F TLP7920F(LF4,TP4) 11-10C404S 11-10C402S Note: Through hole type: TLP7920, TLP7920F Lead forming option: (LF1),(LF4),(LF5) Taping option: (TP1),(TP4),(TP5) 2015 Toshiba Corporation 2015-09-10 1 Rev.1.0TLP7920,TLP7920F 5. 5. 5. 5. Pin AssignmentPin AssignmentPin AssignmentPin Assignment 5.1. 5.1. 5.1. 5.1. Pin FunctionsPin FunctionsPin FunctionsPin Functions Pin No. Symbol Description 1 V Input side supply voltage DD1 2 V Positive input IN+ 3 V Negative input IN- 4 GND1 Input side ground 5 GND2 Output side ground 6 V Negative output OUT- 7 V Positive output OUT+ 8 V Output side supply voltage DD2 6. 6. 6. 6. Internal Circuit (Note)Internal Circuit (Note)Internal Circuit (Note)Internal Circuit (Note) Note: A 0.1 F bypass capacitor must be connected between 1 and 4 pins and between 5 and 8 pins. 7. 7. 7. 7. Principle of OperationPrinciple of OperationPrinciple of OperationPrinciple of Operation 7.1. 7.1. 7.1. 7.1. Mechanical ParametersMechanical ParametersMechanical ParametersMechanical Parameters 7.62-mm Pitch 10.16-mm Pitch Characteristics Unit TLP7920 TLP7920F Creepage distances 7.0 (min) 8.0 (min) mm Clearance 7.0 (min) 8.0 (min) Internal isolation thickness 0.4 (min) 0.4 (min) 2015 Toshiba Corporation 2015-09-10 2 Rev.1.0