LM1851M

Power Management - Specialized Overview

The LM1851M is a ground fault interrupter (GFI) integrated circuit manufactured by Texas Instruments, designed for AC power outlet protection. It operates within a supply voltage range of 90V to 264V and features an operating temperature range from -40°C to +70°C. The device draws a typical supply current of 19mA. It is housed in an 8-SOIC surface-mount package. Key electrical characteristics include a trip threshold accuracy of ±10% and a response time of less than 25ms. The component integrates adaptive variable reluctance sensor amplification capabilities.

Power Management - Specialized Feature Summary

• Provides comprehensive ground fault protection for AC power outlets in consumer and industrial environments
• Integrates adaptive variable reluctance sensor amplifier functionality for precise detection
• Features fast response time with trip threshold accuracy ensuring reliable safety compliance

Power Management - Specialized Applications

• Ground fault protection circuits for consumer electronics
• Industrial AC power outlet safety systems
• Adaptive variable reluctance sensor signal conditioning

Power Management - Specialized Procurement Notes

Verify the specific suffix (e.g., NOPB) against the manufacturer's datasheet to confirm lead-free status and exact pinout configuration. Ensure the selected variant matches the required operating temperature range and package type for your PCB design. Cross-reference the part number with official Texas Instruments documentation to validate all electrical specifications before integration.

Power Management - Specialized Selection Notes

Select the LM1851M when designing AC-powered equipment requiring certified ground fault interruption. Consider the 8-SOIC package constraints for surface-mount assembly. Evaluate the 19mA supply current against system power budgets. Confirm compatibility with the intended input voltage range of 90V to 264V for global deployment scenarios.

Power Management - Specialized Part Context

The LM1851 series belongs to Texas Instruments' portfolio of power management and safety ICs. It is specifically engineered to meet stringent safety standards for ground fault protection. The M suffix denotes the SOIC surface-mount package variant, distinguishing it from through-hole options. This component simplifies GFI implementation by integrating sensing and control logic.

Power Management - Specialized Replacement Considerations

Consult the official Texas Instruments replacement guide for verified cross-references. Ensure any substitute maintains identical pinout, voltage ratings, and safety certification compliance. Verify that alternative components support the same adaptive variable reluctance sensor interface requirements.