Infineon Technologies ICE3A2565FKLA1

Overview

ICE3A2565FKLA1 from Infineon Technologies is a current-mode off-line SMPS controller integrating a 650V depletion CoolMOS™ power transistor and active burst-mode control, delivering 68W input power at 230VAC ±15%, 100kHz fixed switching frequency, and 0.65Ω R_DS(on) at 25°C in PG-DIP-8 package for universal-input AC/DC adapters and open-frame power supplies.

For engineers reviewing the ICE3A2565FKLA1 datasheet, ICE3A2565FKLA1 pinout, ICE3A2565FKLA1 application, or ICE3A2565FKLA1 equivalent, key selection criteria include standby power <100mW, auto-restart protection under overtemperature/overvoltage/open-loop conditions, adjustable blanking window for load-jump immunity, and integrated startup cell eliminating external high-voltage resistors.

Technical Context

The device implements a fixed-frequency (100kHz) current-mode PWM architecture with internal oscillator, leading-edge blanking, and propagation delay compensation to ensure precise peak-current limiting (<±5% tolerance). Its control unit enables immediate load-step response in Active Burst Mode without output blackout.

Protection logic executes Auto Restart Mode on VCC undervoltage, overtemperature, output overvoltage, overload, or open-loop fault detection-each triggering controlled shutdown and periodic restart attempts. The integrated 650V CoolMOS™ drain-source path supports direct connection to rectified AC mains with isolated package construction.

Key Specifications

Pinout & Package

Package: PG-DIP-8 (8-pin dual-in-line plastic), creepage-optimized layout with pins 4 and 5 internally shorted as common drain terminal; pin 6 is not connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ICE3B2565FKLA1, the ICE3A2565FKLA1 delivers higher power density and faster transient response due to its 100kHz operation; versus ICE3A2065FKLA1, it enables 11W additional input power capacity within the same DIP-8 footprint and thermal envelope.

Availability

ICE3A2565FKLA1 is available at Aetrix Electronics and suitable for AC/DC adapters, open-frame PSUs, LED drivers, and appliance power supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE3A2565FKLA1 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™-F3 product line targets cost-sensitive, high-efficiency off-line SMPS designs requiring integrated HV switching, ultra-low standby power, and robust fault protection-optimized for universal-input consumer and industrial power supplies.

FAQ

What is the maximum continuous input power rating for ICE3A2565FKLA1?

The ICE3A2565FKLA1 supports up to 68W continuous input power at 230VAC ±15% under open-frame conditions (T_a=75°C, T_j=125°C, no heatsink copper area). At 50°C ambient with external heatsink (R_thCA=2.7K/W), it delivers 33W continuous input power-verified per Infineon datasheet Version 2.3, Table 1.

Does ICE3A2565FKLA1 require an external high-voltage startup resistor?

No. ICE3A2565FKLA1 integrates a 650V depletion CoolMOS™ startup cell that draws initial current directly from the rectified AC line, eliminating the need for external HV resistors and reducing no-load power consumption by ~30mW compared to discrete solutions.

How does the adjustable blanking window improve system reliability?

The blanking window-set via external RC network on the SoftS pin-suppresses false current-limit triggering during high-slew-rate load transients. This prevents unintended Auto Restart Mode activation during motor startup or LED string turn-on, maintaining uninterrupted output regulation per functional description Section 3.6.1.

Can ICE3A2565FKLA1 be used in designs requiring reinforced isolation?

Yes. The PG-DIP-8 package provides wide creepage distance between drain (pins 4/5) and control pins (FB, CS, GND), meeting reinforced insulation requirements per IEC 60747-17 for ≤300V working voltage. Layout adherence to Infineon's creepage guidelines (Section 5, Outline Dimension) is mandatory for certification.