Infineon Technologies ICE5QR2280BGXUMA1

Overview

ICE5QR2280BGXUMA1 from Infineon is a quasi-resonant 800 V integrated power IC combining a digital PWM controller and avalanche-rugged CoolMOS™ in a single DSO-12 package. It delivers 42 W at 220 VAC ±20% and 23 W across 85–300 VAC, supports <100 mW standby power via selectable Active Burst Mode, and features digital frequency reduction up to 10 zero crossings for EMI suppression in offline flyback converters used in home appliance auxiliary supplies.

For engineers reviewing the ICE5QR2280BGXUMA1 datasheet, ICE5QR2280BGXUMA1 pinout, ICE5QR2280BGXUMA1 application, or ICE5QR2280BGXUMA1 equivalent, key selection criteria include its 2.13 Ω R_DS(on), integrated line OVP/brownout protection, cascode-based fast startup, and programmable burst entry/exit thresholds for low-power mode optimization.

Technical Context

The device implements a current-mode quasi-resonant flyback controller with digital zero-crossing detection and an up/down counter for adaptive switching frequency modulation. Its cascode configuration enables rapid VCC pre-charging during startup, while built-in ringing suppression logic determines optimal switch-on timing based on drain voltage valley detection.

Protection architecture includes cycle-by-cycle current limiting, auto-restart for VCC over/under-voltage, output overvoltage, overload/open-loop, and thermal shutdown with hysteresis. Input line monitoring via VIN pin provides both brownout and overvoltage detection with configurable thresholds using external resistor dividers.

Key Specifications

Pinout & Package

ICE5QR2280BGXUMA1 is housed in PG-DSO-12 (12-pin exposed pad) package with four parallel DRAIN pins for low-inductance high-current routing and thermal enhancement.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quasi-resonant flyback controller applications.

Compared with ICE5QR2280AGXUMA1 and ICE5QSAGXUMA1, ICE5QR2280BGXUMA1 offers superior light-load efficiency via digital frequency reduction, tighter standby power control, and full integration of ZCD functionality-making it optimal for universal-input, low-noise, high-reliability auxiliary supplies.

Availability

ICE5QR2280BGXUMA1 is available at Aetrix Electronics and suitable for home appliance auxiliary supplies, LED TV power management, and PC/server standby power systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE5QR2280BGXUMA1 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.

The ICE5QRxx80BG series belongs to Infineon's CoolSET™ family of integrated quasi-resonant controllers, designed specifically for high-efficiency, low-EMI offline flyback converters in consumer and industrial auxiliary power applications.

FAQ

What is the maximum continuous output power of ICE5QR2280BGXUMA1?

The ICE5QR2280BGXUMA1 delivers up to 42 W at 220 VAC ±20% and 23 W across the full 85–300 VAC input range, measured in an open-frame design at 50°C ambient and 125°C junction temperature using minimum copper area on a 2 oz single-sided PCB. Actual output depends on transformer design, layout, and thermal management.

How does the selectable Active Burst Mode work?

Active Burst Mode entry and exit thresholds are set via external resistors on the FB pin, allowing designers to define precise standby power levels and hysteresis. During burst mode, the controller disables switching cycles until feedback voltage crosses the programmed upper threshold, achieving <100 mW system standby consumption without compromising restart reliability.

Can ICE5QR2280BGXUMA1 operate without an external ZCD circuit?

Yes. The integrated ZCD pin performs zero-crossing detection, startup gate drive, and output overvoltage protection without external components. Unlike earlier CoolSET™ variants, this device eliminates the need for discrete ZCD diodes or RC networks, reducing BOM count and improving timing accuracy across line and load conditions.

What protection functions are implemented internally?

ICE5QR2280BGXUMA1 integrates line OVP and brownout (via VIN), VCC over/under-voltage, output overvoltage (via ZCD), overload/open-loop (via FB), cycle-by-cycle current limiting (via CS), and thermal shutdown with hysteresis. All protections trigger auto-restart except thermal shutdown, which latches until VCC drops below UVLO threshold.