Infineon Technologies ICE5AR0680AGXUMA1

Overview

ICE5AR0680AGXUMA1 from Infineon is a fixed-frequency 800 V integrated power IC (CoolSET™) combining a PWM controller and avalanche-rugged CoolMOS™ in a single DSO-12 package. It delivers up to 68 W at 220 VAC ±20% in DCM, features 100 kHz switching, 0.71 Ω R_DS(on), digital frequency reduction, and selectable Active Burst Mode for <100 mW standby power - deployed in auxiliary power supplies for TVs and home appliances.

For engineers reviewing the ICE5AR0680AGXUMA1 datasheet, ICE5AR0680AGXUMA1 pinout, ICE5AR0680AGXUMA1 application, or ICE5AR0680AGXUMA1 equivalent, key selection criteria include its cascode-based fast startup, integrated error amplifier for non-isolated flyback, line overvoltage protection with adjustable threshold, and auto-restart protection suite covering VCC UV/OV, overload, open-loop, and overtemperature.

Technical Context

The device implements peak current-mode control with slope compensation for stable DCM/CCM operation across universal AC input (85–300 VAC). Its digital control unit enables frequency reduction under light load and jittered soft gate driving to suppress EMI without external components.

Startup uses a cascode configuration with internal pull-up on GATE to charge VCC; VCC operating range is 10.0–25.5 V. Protection logic includes programmable line overvoltage detection via VIN, cycle-by-cycle current limiting via CS, and thermal shutdown with auto-restart behavior.

Key Specifications

Pinout & Package

ICE5AR0680AGXUMA1 is housed in a PG-DSO-12 (12-pin, exposed drain pad) package with four parallel DRAIN pins for thermal and current handling. The exposed drain pad improves thermal dissipation and reduces PCB layout complexity for high-voltage primary-side routing.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar fixed-frequency flyback controller applications.

Compared with ICE5AR4770AG, ICE5AR0680AGXUMA1 offers 2.7× higher output power and 85% lower R_DS(on) at same voltage rating; versus ICE5GR1680AG, it trades 25 kHz higher frequency for lower gate drive loss and simpler EMI filtering due to 100 kHz fundamental.

Availability

ICE5AR0680AGXUMA1 is available at Aetrix Electronics and suitable for TV auxiliary power supplies, home appliance control board PSUs, and PC/server standby power supplies requiring stable component supply, JEDEC-qualified industrial reliability, and RoHS-compliant manufacturing.

Supply support for ICE5AR0680AGXUMA1 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 security solutions, with global manufacturing and qualification to industrial and automotive standards.

This part belongs to the CoolSET™ 5th-generation fixed-frequency integrated power IC product line, engineered for high-efficiency, low-standby-power off-line flyback converters in consumer and industrial auxiliary power applications.

FAQ

What is the maximum continuous output power achievable with ICE5AR0680AGXUMA1?

The datasheet specifies 68 W maximum output power at 220 VAC ±20% in DCM mode under defined test conditions (open-frame, Ta = 50 °C, TJ = 125 °C, 2 oz copper PCB). Actual output depends on heatsinking, transformer design, and operating mode (DCM vs. CCM); CCM yields 42 W at 85–300 VAC. Derating is required for sealed enclosures or higher ambient temperatures.

How does the selectable Active Burst Mode function in this IC?

Active Burst Mode (ABM) entry and exit thresholds are independently set using external resistors on the FB pin. When output power drops below the entry threshold, the IC enters burst mode, disabling switching cycles to reduce losses. It exits when load rises above the exit threshold, restoring full PWM operation. This dual-threshold design minimizes output voltage ripple while maintaining <100 mW standby consumption.

Can ICE5AR0680AGXUMA1 be used in non-isolated flyback topologies?

Yes - the integrated transconductance error amplifier on the VERR pin allows direct feedback from the secondary side without optocoupler or TL431. In non-isolated designs, VERR connects to FB, and regulation is performed on the primary side. For isolated configurations, VERR is tied to GND and feedback is delivered via optocoupler to FB, preserving safety isolation.

What thermal considerations apply to the DSO-12 package?

The PG-DSO-12 package features an exposed drain pad that serves as the primary thermal path. To achieve rated power, the pad must be soldered to a minimum 200 mm² copper area on a 2 oz inner layer, with thermal vias to inner/ground planes. Junction-to-case thermal resistance is 1.5 K/W; derating begins above 100 °C case temperature. Layout must isolate the drain pad from low-voltage traces per creepage/clearance requirements.