BD7693FJ-E2

Overview

The BD7693FJ-E2 is a Power Factor Correction (PFC) controller IC utilizing Boundary Conduction Mode (BCM). It integrates Zero Current Detection to minimize switching losses and electromagnetic interference. The device supports AC input voltages ranging from 90 VAC to 264 VAC, producing a regulated DC output voltage between 376 V and 414 V. Designed for high efficiency, it achieves a typical power factor of 0.97 and total harmonic distortion below 6%. The component operates within an ambient temperature range of -10°C to +125°C and includes protection features such as under-voltage lockout.

Feature Summary

• Implements Boundary Conduction Mode (BCM) control strategy for efficient power factor correction.
• Integrates Zero Current Detection circuitry to reduce switching noise and energy loss.
• Provides robust operation across universal AC input voltage ranges with high power factor performance.

Applications

• Power supplies requiring active PFC stages
• AC/DC converter systems
• Electronic equipment compliant with harmonic distortion regulations

Procurement Notes

Verify the specific suffix against official ROHM documentation to confirm package type and tape/reel specifications. Ensure the selected variant matches the required thermal and electrical ratings for the target application environment. Cross-reference the datasheet revision date to guarantee compatibility with current manufacturing standards and pin configurations.

Selection Notes

Select this component for designs prioritizing low electromagnetic interference and high efficiency in PFC applications. Consider the BCM topology benefits for reduced switching stress compared to continuous conduction modes. Evaluate the integration of zero-current detection against external sensing requirements to simplify the overall bill of materials and layout complexity.

Part Context

This part belongs to the ROHM semiconductor family of power management integrated circuits. It serves as a specialized controller for AC/DC conversion stages, distinct from general-purpose operational amplifiers or motor drivers found in other product lines. The device addresses regulatory requirements for power quality in modern electronic systems.

Replacement Considerations

Consult official substitution lists for direct equivalents. Verify that any alternative PFC controller maintains compatible BCM operation and zero-current detection capabilities to ensure system stability and compliance with design specifications.