Infineon Technologies ICL5102XUMA1

Overview

ICL5102XUMA1 from Infineon Technologies is a dual-stage PFC + resonant half-bridge controller for LED drivers, integrating CrCM/DCM PFC and LLC/LCC HB control in one IC. It delivers up to 94% system efficiency, <5% THD at 30% load, universal AC input (90–305 V_rms), and supports active burst mode for <300 mW standby power. Used in commercial/industrial offline LED drivers up to 350 W.

For engineers reviewing the ICL5102XUMA1 datasheet, ICL5102XUMA1 pinout, ICL5102XUMA1 application, or ICL5102XUMA1 equivalent, key selection criteria include multi-mode PFC operation, resonant HB frequency control (up to 500 kHz), integrated high-side gate driver, capacitive mode protection, and industrial qualification per JEDEC47/20/22.

Technical Context

The ICL5102XUMA1 implements a harmonized two-stage architecture: the PFC stage operates in Critical Conduction Mode (CrCM) and Discontinuous Conduction Mode (DCM) with constant on-time control and THD optimization circuitry, while the resonant HB stage supports both LLC and LCC topologies with fixed or variable-frequency control via external RC networks (RF, TCO pins).

It integrates independent protection logic for both stages-including PFC bus OVP (dual-level), input brown-out, PFC/HS/LS over-current, output OVP/OCP/OPP, capacitive mode detection, and external NTC-based OTP-with auto-restart behavior. The high-side driver uses a bootstrap supply (HSVCC/HSGND) and features self-adaptive dead time.

Key Specifications

Pinout & Package

ICL5102XUMA1 is housed in a thermally optimized PG-DSO-16 (150-mil) package with exposed thermal pad, supporting high-power density LED driver layouts and efficient PCB heat transfer.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PFC + resonant half-bridge controller applications.

Compared with UCC28070DWR and ICE2PCS01G, the ICL5102XUMA1 uniquely integrates both PFC and resonant HB control in one package, enabling compact 350 W designs with <300 mW standby and industrial-grade protection-neither alternative offers this combined functionality or qualification level.

Availability

ICL5102XUMA1 is available at Aetrix Electronics and suitable for commercial LED street lighting, industrial high-bay fixtures, and UV-C sterilization systems requiring stable component supply, long-term lifecycle support, and JEDEC-qualified reliability.

Supply support for ICL5102XUMA1 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 is a German semiconductor leader specializing in power management, automotive MCUs, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.

The ICL5102 belongs to Infineon's LED Driver IC product line, engineered specifically for high-efficiency, high-reliability offline LED drivers using PFC+resonant topologies in commercial and industrial environments.

FAQ

What is the maximum recommended output power for ICL5102XUMA1-based LED drivers?

The ICL5102XUMA1 is validated for LED driver applications up to 350 W, as confirmed in Infineon's datasheet and reference designs. This rating assumes proper thermal management using the PG-DSO-16 exposed pad, appropriate MOSFET selection (e.g., 600 V CoolMOS™), and adherence to layout guidelines for EMI suppression and gate drive integrity.

Does ICL5102XUMA1 support digital dimming protocols like DALI or DMX?

The ICL5102XUMA1 does not integrate native DALI or DMX transceivers. However, its analog dimming interface (via BM and OVP pins) allows seamless integration with external DALI-2 application controllers or PWM-to-analog converters, enabling full protocol compliance in certified luminaires without modifying the core controller.

How is capacitive mode protection implemented in ICL5102XUMA1?

Capacitive mode protection is achieved by monitoring phase relationship between resonant tank voltage and current using internal comparators and timing logic. When the phase shifts beyond safe inductive bounds-indicating capacitive operation-the controller either increases switching frequency or initiates shutdown to prevent destructive shoot-through in the HB MOSFETs.

Can ICL5102XUMA1 operate with LCC resonant topology, or is it limited to LLC?

Yes, the ICL5102XUMA1 explicitly supports both LLC and LCC topologies, as stated in the datasheet description and functional block diagram. Its variable-frequency control, self-adaptive dead time, and burst mode logic are topology-agnostic and validated for stable operation with either configuration under full load and light-load conditions.