SI8947BD-IS4

Power Management - Specialized Overview

The SI8947BD-IS4 is a 5.0 kV isolated Delta-Sigma modulator from the Si8947 series, manufactured by Skyworks Solutions. It operates on a supply voltage range of 3 V to 5.5 V with a typical quiescent current of 6.6 mA. The device supports high-side or low-side sensing configurations and functions within an industrial temperature range of -40°C to +125°C. Packaged in a narrow body SOIC-8 surface-mount tube, it integrates digital isolation for precise current monitoring applications.

Power Management - Specialized Feature Summary

• Provides robust 5.0 kV reinforced insulation between input and output channels
• Utilizes Delta-Sigma modulation architecture for high-resolution signal conversion
• Supports flexible high-side and low-side current sensing topologies
• Operates reliably across extended industrial temperature environments

Power Management - Specialized Applications

• Industrial motor drive current monitoring
• Power supply feedback loops
• Inverter control systems
• Battery management system isolation

Power Management - Specialized Procurement Notes

Verify component authenticity through authorized Skyworks distributors. Confirm package integrity upon receipt as the unit is moisture-sensitive. Ensure proper handling procedures are followed during storage and assembly to maintain reliability standards specified in the datasheet.

Power Management - Specialized Selection Notes

Select this model when high-voltage isolation is required for precision current measurement. The Delta-Sigma architecture suits applications demanding accurate digital transmission across isolation barriers. Consider thermal management requirements given the operating temperature range and power dissipation characteristics.

Power Management - Specialized Part Context

Part of the Si8947 family of isolated Delta-Sigma modulators designed for automotive and industrial use. This specific variant features bipolar supply capability and is optimized for shunt-based current sensing applications requiring galvanic isolation.

Power Management - Specialized Replacement Considerations

SI8947AD-IS4 offers similar specifications with potential pinout or parameter variations. Verify electrical compatibility before substitution.