Infineon Technologies ICE3A2065ELJFKLA1

Overview

ICE3A2065ELJFKLA1 from Infineon Technologies is a current-mode off-line SMPS controller integrating a 650V depletion CoolMOS™ transistor and startup cell in a PG-DIP-8 package. It delivers 57W input power at 230VAC ±15%, operates at 100kHz fixed frequency, features <±5% peak current limiting tolerance, and achieves <100mW standby power via Active Burst Mode for AC/DC adapters and auxiliary power supplies.

For engineers reviewing the ICE3A2065ELJFKLA1 datasheet, ICE3A2065ELJFKLA1 pinout, ICE3A2065ELJFKLA1 application, or ICE3A2065ELJFKLA1 equivalent, key selection criteria include integrated 650V CoolMOS™ R_DS(on) of 0.92Ω, 72% max duty cycle, internal leading-edge blanking, adjustable blanking window for load-jump immunity, and Auto Restart protection for overtemperature, overvoltage, overload, and V_CC undervoltage conditions.

Technical Context

The ICE3A2065ELJFKLA1 implements a fixed-frequency (100kHz) current-mode PWM control architecture with integrated high-voltage startup and avalanche-rugged 650V CoolMOS™. Its control unit manages Active Burst Mode entry/exit based on feedback voltage level and includes propagation delay compensation for precise current sensing.

Protection logic executes Auto Restart Mode upon detection of V_CC undervoltage, output open-loop, overtemperature, or overvoltage events. The device uses internal soft driving and leading-edge blanking to reduce EMI, while the adjustable blanking window prevents false triggering during transient high-current events.

Key Specifications

Pinout & Package

ICE3A2065ELJFKLA1 is housed in a PG-DIP-8 package with creepage-enhanced layout and internal shorting between pins 4 and 5 (Drain). Pin 6 is not connected. The package supports through-hole mounting and provides isolation between high-voltage drain and low-voltage control circuitry.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ICE3B2065ELJFKLA1, the ICE3A2065ELJFKLA1 enables smaller magnetics and higher power density; versus ICE3A2065Z, it offers superior creepage and dual-drain current sharing for improved thermal distribution in high-reliability applications.

Availability

ICE3A2065ELJFKLA1 is available at Aetrix Electronics and suitable for AC/DC adapters, industrial auxiliary supplies, and LED driver power stages requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE3A2065ELJFKLA1 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 fabrication infrastructure.

This part belongs to the CoolSET™-F3 product line, designed specifically for highly integrated, low-standby-power off-line SMPS applications where integration, reliability, and regulatory compliance are critical.

FAQ

What is the purpose of the internal short between pins 4 and 5 on ICE3A2065ELJFKLA1?

Pins 4 and 5 are internally shorted Drain terminals in the PG-DIP-8 package to distribute high-voltage switching current across two leads, reducing thermal resistance and improving power handling capability. This dual-drain configuration enhances thermal performance without requiring external paralleling, supporting the 57W input power rating at 75°C ambient.

How does Active Burst Mode differ from traditional burst mode in ICE3A2065ELJFKLA1?

Unlike conventional burst mode that disables the controller entirely, ICE3A2065ELJFKLA1's Active Burst Mode keeps the control unit operational during low-load periods, enabling immediate response to load steps without output voltage dropout. It modulates switching frequency and duty cycle dynamically while maintaining regulation, achieving <1% output ripple and <100mW standby power simultaneously.

Can ICE3A2065ELJFKLA1 be used in continuous conduction mode (CCM) flyback designs?

Yes-the device supports both discontinuous conduction mode (DCM) and CCM operation via its current-mode control architecture and 72% maximum duty cycle. For CCM designs, the precise <±5% current limit tolerance and propagation delay compensation ensure stable loop behavior and accurate peak current sensing even at high duty cycles and elevated temperatures.

What is the role of the SoftS pin, and how is it configured?

The SoftS pin controls soft-start duration via an external capacitor to ground. Charging this capacitor linearly ramps the internal reference, delaying full PWM enablement and limiting inrush current during power-up. Typical values range from 100nF to 1µF, setting soft-start times between 10ms and 100ms depending on application stress requirements and transformer saturation margins.