link to page 10 Si8935/36/37 Data Sheet Electrical Specifications Table 4.2. IEC Safety Limiting Values1ParameterSymbolTest ConditionCharacteristicUnit Safety Temperature TS 150 °C θJA = 90 °C/W VDD = 5.5 V 253 mA TJ = 150 °C TA = 25 °C Safety Input Current (WB Stretched SOIC-8) IS θJA = 90 °C/W VDD = 3.6 V 386 mA TJ = 150 °C TA = 25 °C θJA = 112 °C/W VDD = 5.5 V 310 mA TJ = 150 °C TA = 25 °C Safety Input Current (NB SOIC-8) IS θJA = 112 °C/W VDD = 3.6 V 203 mA TJ = 150 °C TA = 25 °C θJA = 90 °C/W Safety Input Power (WB Stretched SOIC-8) PS TJ = 150 °C 1389 mW TA = 25 °C θJA = 112 °C/W Safety Input Power (NB SOIC-8) PS TJ = 150 °C 1116 mW TA = 25 °C Device Power Dissipation (WB Stretched SOIC-8) PD 1.39 W Device Power Dissipation (NB SOIC-8) PD 1.12 W Note: 1. Maximum value allowed in the event of a failure. Refer to the thermal derating curves below. silabs.com | Building a more connected world. Preliminary Rev. 0.1 | 10 Document Outline 1. Ordering Guide 2. System Overview 2.1 Modulator 3. Voltage Sense Application 4. Electrical Specifications 4.1 Regulatory Information 5. Pin Descriptions 5.1 Si8935/36/37 Pin Descriptions 6. Packaging 6.1 Package Outline: 8-Pin Wide Body Stretched SOIC 6.2 Package Outline: 8-Pin Narrow Body SOIC 6.3 Land Pattern: 8-Pin Wide Body Stretched SOIC 6.4 Land Pattern: 8-Pin Narrow Body SOIC 6.5 Top Marking: 8-Pin Wide Body Stretched SOIC 6.6 Top Marking: 8-Pin Narrow Body SOIC 7. Document Revision History