Infineon Technologies ICE2A0565GXUMA1

Overview

ICE2A0565GXUMA1 from Infineon Technologies is an off-line SMPS current-mode controller with integrated 650V CoolMOS™, designed for primary-side regulation in AC/DC flyback converters. It delivers 23W output power at 230VAC ±15%, operates at 100kHz switching frequency, features <±5% peak current limiting tolerance, and supports low-power standby mode compliant with European Commission requirements - used in compact AC/DC adapters and auxiliary power supplies.

For engineers reviewing the ICE2A0565GXUMA1 datasheet, ICE2A0565GXUMA1 pinout, ICE2A0565GXUMA1 application, or ICE2A0565GXUMA1 equivalent, key selection criteria include integrated high-voltage MOSFET capability, precise current sensing accuracy, auto-restart protection behavior, thermal shutdown response, and DSO-16 package creepage performance in isolated power designs.

Technical Context

The ICE2A0565GXUMA1 implements a current-mode PWM control architecture with internal leading-edge blanking and propagation delay compensation to ensure stable cycle-by-cycle current sensing. Its oscillator supports fixed 100kHz operation with frequency reduction down to 20kHz/21.5kHz in standby to suppress audible noise.

The integrated protection unit enables auto-restart mode during open-loop, overload, or overvoltage faults, while thermal shutdown triggers recovery only after junction temperature falls below hysteresis threshold. The CoolMOS™ drain is electrically isolated from the controller die in the PG-DSO-16/12 package.

Key Specifications

Pinout & Package

ICE2A0565GXUMA1 uses the PG-DSO-16/12 surface-mount package (16-pin, 12 functional pins), featuring increased creepage distance and isolated drain terminals for reinforced insulation in safety-critical AC/DC applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar off-line SMPS controller applications.

Compared with ICE2A0565Z, ICE2A0565GXUMA1 provides superior isolation and EMI performance in surface-mount form; versus ICE2A165G, it trades 8W output capability for tighter current-sense tolerance and lower standby dissipation in cost-sensitive 20W designs.

Availability

ICE2A0565GXUMA1 is available at Aetrix Electronics and suitable for USB-C wall adapters, smart home IoT power supplies, industrial sensor transmitters, and LED driver auxiliary supplies requiring stable component supply, long-lifecycle support, and traceable sourcing.

Supply support for ICE2A0565GXUMA1 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.

The CoolSET™-F2 product line delivers integrated HV controllers for energy-efficient offline SMPS, targeting regulatory-compliant, compact, and thermally optimized AC/DC conversion in consumer and industrial equipment.

FAQ

What is the maximum continuous output power achievable with ICE2A0565GXUMA1 in an open-frame design?

The ICE2A0565GXUMA1 delivers up to 23W continuous output power at 230VAC ±15% under specified thermal conditions: T_a = 75°C, T_j = 125°C, and PCB copper area = 6 cm². This rating assumes proper heatsinking of the DSO-16 exposed pad and optimal transformer design with low leakage inductance.

How does the SoftS pin function during fault recovery?

The SoftS pin controls both startup ramp time and auto-restart interval. During fault detection, the internal protection unit discharges the SoftS capacitor; recovery begins only after the pin voltage drops below 1.25V, initiating a new soft-start sequence with controlled duty-cycle ramp-up to prevent inrush stress.

Can ICE2A0565GXUMA1 operate without an optocoupler in primary-side regulation?

No - the FB pin requires feedback from a secondary-side error amplifier via optocoupler to close the voltage regulation loop. The device lacks primary-side sensing or auxiliary winding compensation circuitry; optocoupler-based feedback is mandatory for stable output voltage control.

What is the purpose of the multiple Drain pins (pins 5–8) in the PG-DSO-16/12 package?

Pins 5–8 are internally paralleled CoolMOS™ drain connections, providing low-inductance, high-current paths to the transformer primary. This configuration reduces switching losses and improves thermal spreading across the package's exposed pad, supporting reliable 23W operation without external heatsink.