Infineon Technologies ICE2PCS02GFUMA1

Overview

ICE2PCS02GFUMA1 from Infineon Technologies is an 8-pin standalone CCM Power Factor Correction (PFC) controller IC for boost-topology AC-DC front-ends, featuring a trimmed internal 65 kHz switching frequency (±5% at 25°C), 3 V ±2% internal reference voltage, and direct input brown-out detection (VINS turn-on at 1.5 V, shutdown at 0.71 V). It delivers 1.5 A source / 2.0 A sink gate drive capability and supports universal AC input (85–265 VAC) while meeting IEC 61000-3-2 Class D harmonic limits.

For engineers reviewing the ICE2PCS02GFUMA1 datasheet, ICE2PCS02GFUMA1 pinout, ICE2PCS02GFUMA1 application, or ICE2PCS02GFUMA1 equivalent, this controller is selected for high-efficiency, wide-input-range PFC stages in industrial SMPS, LED drivers, and server power supplies where average-current-mode control, fast load-step response, and integrated protection (OVP, OLP, SOC, PCL) are critical design requirements.

Technical Context

The ICE2PCS02GFUMA1 implements cascaded dual-loop control: an inner average current loop (using ISENSE and ICOMP) shapes sinusoidal input current via duty-cycle modulation dependent on rectified line voltage, while the outer voltage loop (VSENSE → OTA1 → VCOMP) regulates output bus voltage with external compensation. It operates exclusively in CCM under normal load and transitions to DCM only at light loads-still compliant with IEC 61000-3-2 Class D.

Its protection architecture integrates five independent fault monitors: VCC UVLO (11.8 V turn-on, 11 V shutdown), input brown-out (VINS hysteresis: 0.71 V off / 1.5 V on), output over-voltage (OVP), open-loop (OLP), and cycle-by-cycle peak current limiting (PCL) with soft overcurrent (SOC) behavior. Startup employs linear VCOMP ramping to limit inrush stress.

Key Specifications

Pinout & Package

ICE2PCS02GFUMA1 is housed in a PG-DSO-8 (SOIC-8) package with standard 150 mil body width, gull-wing leads, and exposed pad (no thermal pad connection required per datasheet). Pin numbering follows JEDEC MS-012AA, top-view orientation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ICE2PCS01G, ICE2PCS02GFUMA1 adds brown-out protection and factory-trimmed frequency-reducing design risk and component count. Against UCC28070, it trades interleaving capability and programmability for lower cost, smaller footprint, and simpler layout in single-phase ≤500 W applications.

Availability

ICE2PCS02GFUMA1 is available at Aetrix Electronics and suitable for industrial switch-mode power supplies, LED driver front-ends, and server rectifiers requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for ICE2PCS02GFUMA1 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 global manufacturing and quality certification to ISO 9001 and IATF 16949.

The ICE2PCS series targets cost-sensitive, high-volume CCM PFC applications in consumer and industrial power supplies, emphasizing integration, reliability, and compliance with international harmonic standards.

FAQ

What is the purpose of the VINS pin and how does its hysteresis improve system robustness?

The VINS pin senses a scaled version of the rectified AC input voltage to detect brown-out conditions. It shuts down the IC when VINS drops below 0.71 V and restarts operation only when VINS rises above 1.5 V-providing 0.79 V hysteresis. This prevents rapid on/off cycling during marginal AC line dips, avoids stress on the PFC switch and input capacitor, and ensures clean, chatter-free recovery once line voltage stabilizes.

Can ICE2PCS02GFUMA1 operate without an external auxiliary supply connected to VCC?

No. The VCC pin requires an external regulated auxiliary supply between 11 V and 26 V. The IC has no internal high-voltage start-up circuitry and draws no current from the main boost rail. During startup, VCC must exceed 11.8 V while VSENSE > 0.6 V and VINS > 1.5 V before gate drive activates-so a dedicated auxiliary winding or bias supply is mandatory for reliable operation.

How does the ICOMP pin differ from VCOMP in control loop implementation?

ICOMP is the compensation node for the inner current loop: it integrates the output of OTA2 to average the ISENSE signal and shape current-loop dynamics for stability and THD minimization. VCOMP is the output node of the outer voltage loop's OTA1, used to set the amplitude reference for the current loop. They serve separate, cascaded functions-ICOMP governs current tracking fidelity, while VCOMP governs output voltage regulation accuracy and transient response.

Is the GATE pin output clamped, and what are the implications for MOSFET selection?

Yes-the GATE pin features an internal clamp at 15.0 V (typical), limiting maximum gate voltage regardless of VCC level. This allows safe use of standard 12 V or 15 V-rated gate drivers and eliminates need for external Zener clamping. Designers should select MOSFETs with V_GS(th) < 3 V and rated for ≥16 V V_GS to ensure full enhancement while respecting the clamp's protection function.