Infineon Technologies ICE3A2065PBKSA1

Overview

ICE3A2065PBKSA1 from Infineon Technologies is a 650V off-line SMPS current-mode controller with integrated depletion-mode CoolMOS™ and 650V startup cell in PG-TO220-6-47 package. It delivers 102W continuous input power at 230VAC ±15%, operates at fixed 100kHz switching frequency, features <±5% peak current limiting tolerance, and supports Active Burst Mode for <100mW standby power in AC/DC adapters and open-frame power supplies.

For engineers reviewing the ICE3A2065PBKSA1 datasheet, ICE3A2065PBKSA1 pinout, ICE3A2065PBKSA1 application, or ICE3A2065PBKSA1 equivalent, key selection criteria include R_DS(on) = 3.00Ω (25°C), integrated high-voltage startup, Auto Restart protection modes, adjustable blanking window, and isolated drain packaging for reinforced creepage.

Technical Context

The device integrates a 650V avalanche-rugged CoolMOS™ power transistor with a dedicated current-mode PWM controller, enabling single-chip AC/DC flyback conversion without external HV startup circuitry. Its internal oscillator fixes switching at 100kHz, while precise leading-edge blanking and propagation delay compensation ensure stable current sensing under fast load transients.

Control logic implements Active Burst Mode triggered by feedback voltage level, delivering immediate response to load jumps without output blackout. Protection architecture includes five independent Auto Restart conditions: overtemperature, V_CC overvoltage, output open-loop, overload, and V_CC undervoltage - all implemented via internal comparators and latch-based recovery.

Key Specifications

Pinout & Package

Package: PG-TO220-6-47 - isolated drain package with wide creepage distance (>8mm) between drain and control pins, suitable for reinforced insulation in Class II applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ICE3B2065PBKSA1 and ICE3A2065IBKSA1, ICE3A2065PBKSA1 offers optimal balance of size, efficiency, and EMI for mid-power adapters where 100kHz enables smaller transformers and tighter regulation without compromising safety isolation.

Availability

ICE3A2065PBKSA1 is available at Aetrix Electronics and suitable for AC/DC adapters, open-frame power supplies, and LED drivers requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE3A2065PBKSA1 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.

This part belongs to the CoolSET™-F3 family - designed specifically for high-efficiency, low-standby-power off-line SMPS in consumer and industrial applications, integrating HV startup and rugged CoolMOS™ in single-package solutions.

FAQ

What is the purpose of the SoftS pin on ICE3A2065PBKSA1?

The SoftS pin accepts an external capacitor to control the soft-start ramp time during power-up. This limits inrush current into the output capacitor, prevents output voltage overshoot, and ensures controlled rise of the PWM duty cycle. Typical values range from 100nF to 470nF, setting soft-start duration between 50ms and 200ms depending on application stress requirements.

How does the integrated 650V startup cell function?

The startup cell draws current directly from the rectified mains via the Drain pin to charge the V_CC capacitor, eliminating the need for a high-voltage resistive divider. Once V_CC reaches ~15.5V, the controller enables gate drive and disables the startup current path, achieving zero static power loss during normal operation.

Can ICE3A2065PBKSA1 operate in continuous conduction mode (CCM)?

No - ICE3A2065PBKSA1 is optimized for discontinuous conduction mode (DCM) and transition mode (TM) flyback operation. Its current-sense architecture, fixed-frequency oscillator, and protection thresholds assume DCM/TM waveforms; CCM operation risks instability and inaccurate current limiting due to trailing-edge sampling limitations.

What is the minimum recommended creepage distance for PCB layout?

For reinforced insulation per IEC 62368-1, the PG-TO220-6-47 package requires ≥8mm creepage between Drain (pin 1) and all other pins (especially GND, FB, SoftS). This is achieved through the package's internal isolation and must be maintained on PCB using slots, barriers, or conformal coating - no additional spacing beyond the package's specified outline is needed if layout follows Infineon's recommended footprint.