TLP7820 Toshiba

TLP7820 Photocouplers Optically Isolation Amplifiers TLP7820TLP7820TLP7820TLP7820 1. 1. ApplicationsApplications 1. 1. ApplicationsApplications Motor phase and rail current sensing Power inverter current and voltage sensing 2. 2. 2. 2. GeneralGeneralGeneralGeneral The TLP7820 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 TLP7820. 3. 3. FeaturesFeatures 3. 3. FeaturesFeatures (1) Output side supply voltage: 3 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 and Pin AssignmentPackaging and Pin AssignmentPackaging and Pin AssignmentPackaging and Pin Assignment 11-6B1A 4.1. 4.1. 4.1. 4.1. Pin AssignmentPin AssignmentPin AssignmentPin Assignment 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 2015 Toshiba Corporation 2015-09-10 1 Rev.3.0TLP7820 5. 5. 5. 5. 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. 6. 6. Principle of OperationPrinciple of Operation 6. 6. Principle of OperationPrinciple of Operation 6.1. 6.1. 6.1. 6.1. Mechanical ParametersMechanical ParametersMechanical ParametersMechanical Parameters Characteristics SO8L Unit Height 2.3 (Max) mm Creepage distances 8.0 (Min) Clearance 8.0 (Min) Internal isolation thickness 0.4 (Min) 2015 Toshiba Corporation 2015-09-10 2 Rev.3.0