Infineon Technologies ICE2PCS03GXUMA1

Overview

ICE2PCS03GXUMA1 from Infineon Technologies is a standalone Continuous Conduction Mode (CCM) Power Factor Correction (PFC) controller IC for boost-topology AC-DC front-ends. It delivers fixed 100 kHz switching frequency, average current mode control, input brown-out protection (VINS threshold: 0.71 V turn-off / 1.5 V turn-on), and 3 V ±2% internal reference voltage. Designed for universal-input (85–265 VAC) industrial and consumer SMPS requiring IEC 61000-3-2 Class D compliance.

For engineers reviewing the ICE2PCS03GXUMA1 datasheet, ICE2PCS03GXUMA1 pinout, ICE2PCS03GXUMA1 application, or ICE2PCS03GXUMA1 equivalent, this controller supports fast startup with soft-start ramping, external voltage/current loop compensation, cycle-by-cycle peak current limiting, and gate drive output rated for 1.5 A source / 2.0 A sink with 15 V clamp - critical for robust MOSFET gate driving in high-reliability PFC stages.

Technical Context

The ICE2PCS03GXUMA1 implements cascaded dual-loop control: an inner average current loop (using ISENSE and ICOMP) shapes sinusoidal input current, while the outer voltage loop (via VSENSE and VCOMP) regulates output bus voltage. Its trimmed 100 kHz oscillator eliminates external timing components and ensures stable CCM operation across line/load variations.

Protection logic integrates direct-sense brown-out detection (VINS), open-loop detection (OLP), over-voltage protection (OVP), and soft overcurrent control (SOC) - all triggering standby mode without latch-up. The IC requires external auxiliary VCC supply (11–26 V) and operates only when VCC > 11.8 V, VSENSE > 0.6 V, and VINS > 1.5 V simultaneously.

Key Specifications

Pinout & Package

ICE2PCS03GXUMA1 is housed in PG-DSO-8 (SOIC-8) package, RoHS-compliant, with 1.27 mm pitch and exposed pad thermal enhancement per Infineon outline drawing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ICE2PCS02GXUMA1 and UCC28070DWR, ICE2PCS03GXUMA1 uniquely combines brown-out protection, fixed 100 kHz operation, and SOIC-8 simplicity - making it optimal for cost-sensitive, single-phase 300–800 W PFC stages needing robust low-line behavior without added circuitry.

Availability

ICE2PCS03GXUMA1 is available at Aetrix Electronics and suitable for industrial motor drives, LED street lighting power supplies, and ATX PC power supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for ICE2PCS03GXUMA1 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 R&D and manufacturing infrastructure.

ICE2PCS03GXUMA1 belongs to Infineon's CCM-PFC product line, engineered specifically for cost-effective, high-efficiency active PFC in universal-input AC-DC converters targeting IEC 61000-3-2 Class D compliance.

FAQ

What is the purpose of the VINS pin and how is it configured?

The VINS pin monitors a scaled version of the rectified AC input voltage using a resistive divider. When VINS falls below 0.71 V, the IC shuts down to prevent unstable operation during brown-out conditions; it restarts when VINS exceeds 1.5 V. A typical configuration uses a 1 MΩ/100 kΩ divider from the bridge output, filtered with a 100 nF capacitor to reject noise.

Can ICE2PCS03GXUMA1 operate without an external auxiliary supply?

No - ICE2PCS03GXUMA1 requires an external 11–26 V auxiliary supply connected to the VCC pin. It lacks a high-voltage startup circuit or integrated charge pump. The auxiliary supply must reach ≥11.8 V before the IC enables gate drive, and must remain above 11.0 V during operation to avoid UVLO shutdown.

How does the ICOMP pin function in current loop compensation?

ICOMP serves as the output node of the internal current-error amplifier (OTA2). An external RC network connected between ICOMP and GND sets the pole-zero locations for current loop stability. The capacitor integrates the amplifier output to generate the average current command, while the resistor adjusts loop gain - enabling tuning for different inductor values and power levels.

Is ICE2PCS03GXUMA1 compliant with IEC 61000-3-2 Class D?

Yes - when implemented with appropriate boost inductor, input EMI filter, and output capacitance, ICE2PCS03GXUMA1 achieves Class D compliance (harmonic currents up to 2 kHz) across 85–265 VAC input and 20–100% load. This is verified in Infineon's reference design RDHP01 and confirmed in the ICE2PCS03G datasheet Section 3.1 and Figure 12.