Datasheet Si86Px (Skyworks) - 3

DATA SHEET Si86Px
VI DC-DC DC-DC DC-DC DC-DC VO Primary Secondary VDD1 UVLO UVLO VDD2 A1 B1 A2 B2 A3 B3 CMOS Isolation A4 B4 GND1 GND2
Figure 5. Si86Px42x
Skyworks Solutions, Inc. • Phone [949] 231-3000 • sales@skyworksinc.com • www.skyworksinc.com 207353A • Skyworks Proprietary Information • Products and Product Information are Subject to Change without Notice 3 March 23, 2026 Document Outline Applications Features Safety Regulatory Approvals (Pending) Description 1. Functional Block Diagrams 2. Pin Descriptions 2.1. WB SOIC-16 2.2. WB SOIC-20 3. Functional Description 3.1. Digital Isolation 3.2. Power Isolation 3.2.1. DC-to-AC Conversion 3.2.2. AC-to-AC Conversion 3.2.3. AC-to-DC Conversion 4. Digital Isolator Device Operation 4.1. Logic Operation 4.2. Device Startup 4.3. Undervoltage Lockout 4.4. Thermal Protection 4.5. Fault Tolerance and Protection 4.5.1. Overload/Short Circuit Protection 4.5.2. Time-Out Block 4.5.3. Overvoltage Protection 5. Electrical Specifications 5.1. Si86P5x: 5 V Supply Input and 3.3 to 5 V Continuous Supply Output 5.2. Si86P4x: 3.3 V to 5 V Continuous Supply Input and 3.3 V Supply Output 5.3. Si86P3x: 3.3 V Supply Input and 3.3 V Supply Output 5.4. Supply Input Current Characteristics 5.5. Electrical Characteristics—Digital Isolator 5.5.1. Logic Input and Output Characteristics 5.5.2. Supply Current Characteristics 5.6. Timing Characteristics 5.7. Typical Performance Characteristics 5.8. Thermal Characteristics 5.9. Safety Certifications and Specifications (Pending) 6. Application Information 6.1. Recommended Application Circuits 6.2. Power Supply and Layout Considerations 6.3. Hysteretic Control and Programmable Output Voltage 7. Package and Handling Information 7.1. WB SOIC-16 Top Marking 7.2. WB SOIC-20 Top Marking 7.3. WB SOIC-16 Package 7.4. WB SOIC-20 Package 7.5. WB SOIC-16 Land Pattern 7.6. WB SOIC-16 Tape and Reel Information 7.7. WB SOIC-20 Land Pattern 7.8. WB SOIC-20 Tape and Reel Information 8. Ordering Information 9. Revision History