Infineon Technologies ICE3BR0665JZXKLA1

Overview

ICE3BR0665JZXKLA1 from Infineon Technologies is an integrated off-line SMPS current-mode controller with built-in 650V CoolMOS® power transistor, fixed 65kHz switching frequency, active burst mode for <50mW standby power, and internal startup cell. It operates across 85–265VAC input, delivers up to 71W at 230VAC, and targets low-cost AC/DC adapters for DVD players, set-top boxes, and Blu-ray devices.

For engineers reviewing the ICE3BR0665JZXKLA1 datasheet, ICE3BR0665JZXKLA1 pinout, ICE3BR0665JZXKLA1 application, or ICE3BR0665JZXKLA1 equivalent, key selection criteria include its integrated high-voltage MOSFET, jitter-enabled EMI reduction, extendable blanking window via BA pin, and auto-restart protection with external enable capability.

Technical Context

This device integrates a BiCMOS controller and avalanche-rugged 650V CoolMOS® in a single PG-DIP-7 package, eliminating the need for an external startup resistor by connecting the internal startup cell directly to the Drain pin. Its current-mode architecture includes propagation delay compensation and leading-edge blanking to ensure stable peak-current limiting across input voltage variations.

The control unit implements two blanking modes-fixed 20ms basic mode and capacitor-extendable mode-and supports both active burst mode (for ultra-low standby) and auto-restart protection triggered by overload, overtemperature, VCC undervoltage, or open-loop faults. Frequency jitter is applied to the 65kHz oscillator to suppress EMI peaks.

Key Specifications

Pinout & Package

ICE3BR0665JZXKLA1 uses the PG-DIP-7 (7-pin dual in-line plastic) package with creepage and clearance optimized for reinforced insulation in AC/DC converters. Pin 4 and Pin 6 are internally not connected (n.c.) and must remain unconnected on PCB.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar integrated SMPS controller applications.

Compared with ICE3BR0665JZ, the XKLA1 variant adds formal green compound certification and tighter logistics traceability; versus ICE3B0565J, it delivers 29% higher power density, 15dB better EMI performance, and certified sub-50mW standby-critical for CE/UKCA-marked consumer electronics.

Availability

ICE3BR0665JZXKLA1 is available at Aetrix Electronics and suitable for DVD player power supplies, set-top box adapters, and portable media charger designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant green mold compound.

Supply support for ICE3BR0665JZXKLA1 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®-F3R jitter series-a family of integrated AC/DC controllers designed specifically for cost-sensitive, low-power (<100W) consumer electronics requiring ultra-low standby, EMI compliance, and simplified BOMs.

FAQ

What is the purpose of the BA pin, and how is it used?

The BA pin serves dual functions: extending the internal 20ms blanking window via an external capacitor to ground, and enabling external forced auto-restart by pulling the pin below 0.33V. This allows designers to tailor overload protection timing without adding comparators or timers, and to implement system-level fault shutdown independent of internal fault detection.

Does ICE3BR0665JZXKLA1 require an external startup resistor?

No. The device integrates a high-voltage startup cell connected directly to the Drain pin, eliminating the need for an external startup resistor. This reduces component count, improves light-load efficiency by ~0.8%, and removes a common failure point in traditional flyback designs.

How does the active burst mode maintain output regulation at ultra-low load?

During active burst mode, the FB pin remains fully active and retains optocoupler feedback control. The controller modulates burst frequency-not duty cycle-while preserving closed-loop regulation. This ensures ±5% output voltage accuracy even at 10mW load, unlike simple skip-cycle modes that degrade regulation.

Can ICE3BR0665JZXKLA1 be used in continuous conduction mode (CCM) flyback designs?

Yes. Its current-mode architecture, propagation delay compensation, and 75% max duty cycle support CCM operation across universal input. However, designers must verify transformer reset margin and ensure CS pin noise immunity-especially with high-turn-ratio transformers-using the recommended RC snubber and layout practices from the datasheet.