Infineon Technologies ICE3AR1080JGXUMA1

Overview

ICE3AR1080JGXUMA1 from Infineon Technologies is an integrated 800 V CoolMOS™ PWM controller in PG-DSO-12 package, combining avalanche-rugged power MOSFET and current-mode control logic for offline SMPS. It delivers fixed 100 kHz switching with frequency jittering, active burst mode (<100 mW standby), adjustable brownout, and auto-restart protection for overtemperature (50°C hysteresis), overload, and VCC faults - deployed in Blu-ray players, set-top boxes, and auxiliary power supplies for servers and white goods.

For engineers reviewing the ICE3AR1080JGXUMA1 datasheet, ICE3AR1080JGXUMA1 pinout, ICE3AR1080JGXUMA1 application, or ICE3AR1080JGXUMA1 equivalent, key selection criteria include its 800 V drain rating, ±5% current limit tolerance, 10 ms soft-start, 20 ms extendable blanking time, and dual-function BBA/FBB pins enabling brownout, burst-level selection, and external auto-restart enable.

Technical Context

This IC implements a current-mode PWM architecture with propagation-delay compensation to maintain consistent peak-power limiting across line voltages. Its BiCMOS process enables wide VCC range (10.5–25 V) and low quiescent consumption, while the integrated startup cell eliminates external high-voltage start-up circuitry.

The control unit integrates patented Active Burst Mode with selectable entry/exit thresholds and feedback voltage swing reduction (0.5 V → 0.3 V) to cut output ripple by 40%. Brownout detection uses external RBO1/RBO2 dividers, and the BBA pin unifies brownout, extended blanking (via external capacitor), and forced auto-restart activation below 0.4 V.

Key Specifications

Pinout & Package

Package: PG-DSO-12 (12-pin exposed-pad SOIC variant with thermal pad; JEDEC MS-012AC compliant). Pin 1–12 arranged in single-row DSO layout with Drain pins (5,6,7,8) paralleled for low-inductance high-current path and GND (12) adjacent to VCC (11) for stable bias decoupling.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar offline SMPS controller applications.

Compared with ICE3AR1065JGXUMA1 and ICE5QSBG, ICE3AR1080JGXUMA1 uniquely combines 800 V ruggedness, sub-100 mW standby, and integrated startup in one PG-DSO-12 device - making it optimal for cost-sensitive, high-reliability auxiliary supplies where input surge immunity and no-load compliance are mandatory.

Availability

ICE3AR1080JGXUMA1 is available at Aetrix Electronics and suitable for Blu-ray player power supplies, server auxiliary PSUs, and smart TV standby converters requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE3AR1080JGXUMA1 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 manufacturer specializing in power management, automotive, and industrial control ICs, with leadership in silicon carbide and CoolMOS™ technologies.

This part belongs to the CoolSET™-F3R80 product line, designed specifically for low-power offline SMPS requiring high-voltage margin, ultra-low standby consumption, and integrated protection - targeting consumer and computing auxiliary power applications.

FAQ

What is the purpose of the BBA pin, and how is it configured for brownout?

The BBA pin integrates brownout detection, extended blanking time, and external auto-restart enable. For brownout, two external resistors (RBO1, RBO2) form a voltage divider from VCC to GND, setting the input AC voltage threshold at which switching stops. When the divided voltage drops below ~0.62 V, the IC halts PWM output - preventing unstable operation during grid sags. RBO1 is tied to VCC if brownout is disabled.

How does Active Burst Mode reduce standby power below 100 mW?

Active Burst Mode dynamically disables switching cycles based on load demand, measured via the FBB pin voltage. During light load, the IC enters bursts of short-duration switching followed by extended idle periods. The feedback voltage swing is narrowed from 0.5 V to 0.3 V in burst mode, reducing output capacitor discharge and minimizing RMS current - achieving <100 mW no-load consumption without compromising regulation accuracy.

Can ICE3AR1080JGXUMA1 replace ICE3BR1065JGXUMA1 in existing designs?

Yes, with minor modifications: the pinout and control features are identical, but the 800 V rating allows direct replacement in 270 VAC-rated designs. However, R_DS(on) is higher (1.00 Ω vs. 0.75 Ω), so conduction losses increase slightly at full load. Layout changes are unnecessary, but verify thermal margin under worst-case high-line conditions due to higher MOSFET on-resistance.

What is the role of propagation delay compensation, and why is it critical?

Propagation delay compensation adjusts the current-sense comparator timing to offset gate-driver and MOSFET turn-on delays. This ensures the peak current limit remains identical at both low (85 VAC) and high (265 VAC) input voltages - eliminating line-voltage-dependent power derating. Without it, maximum deliverable power would drop significantly at high line, requiring oversized transformers or reduced output specifications.