link to page 9 Si8921/22 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 1.12 W (NB SOIC-8) 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. 0.5 | 9 Document Outline 1. Ordering Guide 2. System Overview 3. Current Sense Application 4. Electrical Specifications 4.1 Regulatory Information 4.2 Typical Operating Characteristics 5. Pin Descriptions 5.1 Si8921 Pin Descriptions 5.2 Si8922 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. Revision History
