Infineon Technologies ICE1PCS02GFUMA1

Overview

ICE1PCS02GFUMA1 from Infineon Technologies is an 8-pin standalone Continuous Conduction Mode (CCM) Power Factor Correction (PFC) controller IC for boost-topology AC-DC front-ends. It delivers fixed 65 kHz switching frequency, average current control, input brown-out detection (VINS < 0.8 V shutdown / >1.5 V restart), and 1.5 A gate drive capability. Used in universal-input (85–265 VAC) industrial SMPS and LED drivers requiring Class D IEC 61000-3-2 compliance.

For engineers reviewing the ICE1PCS02GFUMA1 datasheet, ICE1PCS02GFUMA1 pinout, ICE1PCS02GFUMA1 application, or ICE1PCS02GFUMA1 equivalent, key selection criteria include its trimmed 5 V ±2% internal reference, external voltage/current loop compensation flexibility, soft-start with controlled 30 µA VCOMP ramp, cycle-by-cycle peak current limiting, and brown-out hysteresis-critical for stable operation in fluctuating grid conditions.

Technical Context

The ICE1PCS02GFUMA1 implements a cascaded dual-loop control architecture: an inner average current loop (sensed via ISENSE, compensated at ICOMP) shapes sinusoidal input current, while an outer voltage loop (sensed at VSENSE, compensated at VCOMP) regulates 380–400 V DC bus. It operates exclusively in CCM under normal load, entering DCM only at light loads-still meeting IEC 61000-3-2 Class D harmonic limits.

Its protection subsystem integrates five verified functions: input brown-out detection with 0.7 V hysteresis (VINS pin), soft overcurrent control (SOC), cycle-by-cycle peak current limiting (PCL), open-loop protection (OLP), and over-voltage protection (OVP). Startup is initiated only when VCC > 11.2 V, VSENSE > 0.8 V, and VINS > 1.5 V-ensuring coordinated power sequencing.

Key Specifications

Pinout & Package

ICE1PCS02GFUMA1 is housed in a PG-DSO-8 (SOIC-8) surface-mount package with standard 1.27 mm pitch, RoHS-compliant lead-free finish, and thermal pad-compatible footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar CCM PFC controller applications.

Compared with ICE1PCS01G, ICE1PCS02GFUMA1 adds essential brown-out resilience and faster startup without increasing component count; versus UCC28070, it offers simpler implementation and lower BOM cost for single-phase PFC up to 600 W, trading interleaving capability for design simplicity.

Availability

ICE1PCS02GFUMA1 is available at Aetrix Electronics and suitable for industrial SMPS, LED driver front-ends, server power supplies, and medical equipment power conversion requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for ICE1PCS02GFUMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with leadership in CoolMOS™ and PFC controller innovation.

ICE1PCS02GFUMA1 belongs to Infineon's CCM-PFC product line, designed specifically for cost-effective, high-reliability active power factor correction in universal-input AC-DC converters targeting IEC 61000-3-2 Class D compliance.

FAQ

What is the purpose of the VINS pin on ICE1PCS02GFUMA1?

The VINS pin monitors a scaled version of the rectified AC input voltage to detect brown-out conditions. When VINS falls below 0.8 V, the IC shuts down the GATE output; it restarts only when VINS rises above 1.5 V-providing 0.7 V hysteresis to prevent chattering during marginal line conditions. This function replaces external brown-out supervisors, reducing component count and improving system reliability in unstable grid environments.

Can ICE1PCS02GFUMA1 operate in Discontinuous Conduction Mode (DCM)?

ICE1PCS02GFUMA1 is optimized for Continuous Conduction Mode (CCM) operation but may enter DCM under very light loads depending on boost inductor value and output power. The datasheet confirms DCM occurs only at light load and still satisfies IEC 61000-3-2 Class D harmonic limits. It does not support forced DCM or boundary-mode operation-the control architecture and compensation networks are designed exclusively for CCM stability.

How does the ICOMP pin function in the current loop?

The ICOMP pin serves as the output node of the internal current error amplifier (OTA2) and hosts the external low-pass compensation network (typically RC series to ground). It integrates the sensed current signal from ISENSE to generate a smoothed control voltage that sets the duty cycle for average current regulation. Proper ICOMP network design determines loop stability, bandwidth, and rejection of switching noise-critical for maintaining low THD across line and load variations.

Is ICE1PCS02GFUMA1 pin-compatible with ICE1PCS01G?

Yes-ICE1PCS02GFUMA1 shares identical PG-DSO-8 pinout, electrical characteristics, and functional block diagram with ICE1PCS01G. The only differences are internal: added brown-out detection logic tied to VINS and increased startup current (30 µA vs. 10 µA) at VCOMP. No PCB redesign is needed for migration; only VINS connection and optional startup tuning are required to leverage the enhanced features.