Infineon Technologies ICE2A380P2BKSA1

Overview

ICE2A380P2BKSA1 from Infineon Technologies is an off-line SMPS current mode controller with integrated 800V CoolMOS™ power transistor, designed for primary-side regulation in AC/DC flyback converters. It delivers 111W maximum continuous power at Ta=75°C in open-frame design, operates at 100kHz switching frequency, features ±5% peak current limiting tolerance, and supports low-power standby mode compliant with European Commission requirements.

For engineers reviewing the ICE2A380P2BKSA1 datasheet, ICE2A380P2BKSA1 pinout, ICE2A380P2BKSA1 application, or ICE2A380P2BKSA1 equivalent, key selection criteria include integrated 800V drain capability, TO-220-6-47 package thermal performance, auto-restart protection behavior under overload/open-loop conditions, and precise current-sense threshold stability across temperature.

Technical Context

The ICE2A380P2BKSA1 implements a current-mode PWM control architecture with internal leading-edge blanking and propagation delay compensation to ensure accurate peak current sensing. Its oscillator supports fixed 100kHz operation with frequency reduction down to 20kHz/21.5kHz in standby to suppress audible noise while maintaining output regulation.

The integrated protection unit enables auto-restart mode during overvoltage (no-load open-loop), overload (short-circuit), or thermal shutdown events. The SoftS pin serves dual function-initiating soft-start at power-up and controlling auto-restart timing after fault detection-without requiring external timing components.

Key Specifications

Pinout & Package

ICE2A380P2BKSA1 uses the PG-TO220-6-47 package: isolated drain tab, 6-pin through-hole mounting, creepage-enhanced layout for reinforced insulation in AC/DC primary-side applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ICE2A365 and ICE2A765P2, ICE2A380P2BKSA1 uniquely balances 800V ruggedness for universal AC input, TO-220 thermal capability for 60W continuous operation, and precision current limiting-making it optimal for compact, high-reliability 65–100W adapters where surge immunity and no-load silence are mandatory.

Availability

ICE2A380P2BKSA1 is available at Aetrix Electronics and suitable for USB-C PD adapters, industrial DIN-rail power supplies, smart home hub power modules, and medical auxiliary power rails requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for ICE2A380P2BKSA1 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 AC/DC controller + HV MOSFET solutions targeting high-efficiency, low-standby-power offline SMPS designs for consumer, industrial, and medical power applications.

FAQ

What is the maximum continuous output power achievable with ICE2A380P2BKSA1 in a typical open-frame design?

The ICE2A380P2BKSA1 delivers 60W of practical continuous output power at T_a=75°C with R_thCA=2.7K/W, verified under 85–265VAC input and standard PCB copper area (6 cm²). This rating accounts for real-world thermal resistance and derating-exceeding the 111W theoretical maximum due to junction-to-ambient constraints in non-heatsinked configurations.

Does ICE2A380P2BKSA1 require an external startup resistor, and what is its VCC startup threshold?

Yes, ICE2A380P2BKSA1 requires an external high-voltage startup resistor connected from the rectified AC bus to the VCC pin. The internal undervoltage lockout activates below 8.5V, ensuring reliable startup only after sufficient auxiliary winding voltage is established-preventing erratic operation during brown-out conditions.

How does the SoftS pin function during fault recovery, and can its timing be adjusted?

The SoftS pin controls both initial soft-start ramp time and post-fault auto-restart interval. Its timing is internally fixed-no external capacitor is needed or supported. After thermal shutdown or overload detection, the device enters auto-restart mode with a built-in delay (~1 second), then attempts soft-start again until fault clears, eliminating need for external reset circuitry.

Can ICE2A380P2BKSA1 be used in non-isolated buck-derived topologies, or is it limited to flyback?

ICE2A380P2BKSA1 is specifically designed for isolated flyback topologies with optocoupler feedback. Its current-sense architecture, protection logic, and internal reference assume transformer-coupled secondary regulation. It lacks features required for buck, forward, or LLC topologies-such as high-side gate drive, synchronous rectification control, or resonant timing inputs.