NCP1654BD65R2G 54B65 Power Factor Controller IC – OnSemi – SOIC-8

The NCP1654BD65R2G 54B65 Power Factor Controller IC is a controller designed for Continuous Conduction Mode (CCM) Power Factor Correction (PFC) step-up pre-converters. It operates in a fixed frequency mode with PWM control based on the instantaneous coil current. The IC is housed in a compact SO8 package, simplifying the PFC implementation and minimizing external components. It integrates advanced safety features to ensure robust and reliable performance.

Key Features:

• IEC61000−3−2 Compliance: Meets international standards for power quality.
• Average Current CCM: Efficiently manages power with continuous conduction mode.
• Fast Transient Response: Quick response to changes in load conditions.
• Minimal External Components: NCP1654BD65R2G Reduces the number of required external components.
• Low Startup and Shutdown Currents: Startup currents less than 75 µA and shutdown currents less than 400 µA.
• Low Operating Consumption: Ensures minimal power consumption during operation.
• ±1.5 A Totem Pole Gate Drive: Provides strong gate drive capability for power switches.
• Accurate Integrated Oscillator: Includes a 65/133/200 kHz oscillator for precise timing.
• Latching PWM Control: Manages duty-cycle control on a cycle-by-cycle basis.
• Internally Trimmed Reference: Ensures accurate voltage references.
• Undervoltage Lockout with Hysteresis: Prevents operation under unsafe voltage conditions.
• Soft-Start Function: Ensures smooth startup and prevents inrush current issues.
• Shutdown Function: Allows safe deactivation of the IC.

Safety Features:

• Inrush Current Detection: Protects against excessive current at startup.
• Overvoltage Protection: Prevents damage from voltage spikes.
• NCP1654BD65R2G Provides Undervoltage Detection: Detects open loop conditions or triggers shutdown.
• Brown-Out Detection: Monitors for low input voltage conditions.
• Accurate Overcurrent Limitation: Limits current to prevent damage.
• Overpower Limitation: Prevents excessive power draw.