IR2277SPBF

Current Regulation/Management Overview

The IR2277SPBF is a phase current sensor integrated circuit designed for AC motor control applications. It features a single channel with a drain-open output configuration. The device operates within a supply voltage range of -5 V to 1200 V and supports a maximum power supply current of 6 mA. It provides a minimum common-mode rejection ratio (CMRR) of 100 dB. The component is housed in a 16-pin SOIC surface-mount package, measuring 10.5 mm in length, 7.6 mm in width, and 2.35 mm in height. It functions reliably across an operating temperature range from -40 °C to +125 °C.

Current Regulation/Management Feature Summary

• Designed specifically for phase current sensing in AC motor control systems
• Capable of handling high common-mode voltages up to 1200 V
• Provides high common-mode rejection ratio for accurate signal integrity
• Features a drain-open output interface for flexible integration

Current Regulation/Management Applications

• AC motor control systems
• Phase current sensing circuits
• Industrial motor drives

Current Regulation/Management Procurement Notes

Verify the specific suffix 'PBF' indicates lead-free RoHS compliance as per manufacturer specifications. Confirm the 16-pin SOIC package dimensions match your PCB footprint requirements. Ensure the 1200 V rating aligns with your system's common-mode voltage limits. Check for any end-of-life or not-recommended-for-new-designations if sourcing from secondary markets. Validate the operating temperature range against your environmental constraints.

Current Regulation/Management Selection Notes

Select this component when precise phase current monitoring is required for AC motors. The high voltage tolerance allows direct sensing in high-side configurations without external isolation barriers. Consider the 100 dB CMRR for noise immunity in electrically noisy environments. The single-channel architecture simplifies design compared to multi-channel alternatives. Ensure the drain-open output matches the input requirements of the downstream processing unit.

Current Regulation/Management Part Context

The IR2277SPBF belongs to the family of signal circuit ICs manufactured by International Rectifier, now part of Infineon Technologies. It serves as a specialized sensor interface rather than a general-purpose amplifier. The device bridges the gap between high-voltage power stages and low-voltage control logic. Its design focuses on robustness and accuracy in demanding motor drive applications.

Current Regulation/Management Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.