Infineon Technologies ICE3BR0665JXKLA1

Overview

ICE3BR0665JXKLA1 from Infineon Technologies is an integrated off-line SMPS current-mode controller with a 650V avalanche-rugged CoolMOS® power transistor, fixed 65kHz switching frequency, active burst mode for <50mW standby power, and built-in frequency jitter for EMI reduction - deployed in DVD players, set-top boxes, and low-power AC/DC adapters.

For engineers reviewing the ICE3BR0665JXKLA1 datasheet, ICE3BR0665JXKLA1 pinout, ICE3BR0665JXKLA1 application, or ICE3BR0665JXKLA1 equivalent, key selection criteria include integrated high-voltage startup cell, ±5% current-limit tolerance, extendable blanking window via BA pin, and DIP-8 package compatibility with thermal derating up to 49W at 50°C ambient.

Technical Context

This device implements current-mode control with propagation delay compensation and internal leading-edge blanking (220ns), enabling stable regulation under fast load transients. Its BiCMOS process supports a wide VCC range (10.5–25V) and integrates soft-start (20ms typ), precise peak-current limiting (<±5% tolerance), and auto-restart protection for overload, overtemperature, VCC undervoltage, and open-loop faults.

The CoolSET®-F3R architecture combines a 650V CoolMOS® drain-source path (pins 4 & 5 shorted) with a dedicated startup cell connected directly to the drain, eliminating external startup resistors. Frequency jitter modulates the 65kHz oscillator to suppress EMI peaks, while the BA pin provides dual functionality: extending blanking time via external capacitor and enabling external auto-restart by pulling below 0.33V.

Key Specifications

Pinout & Package

Package: PG-DIP-8 (Plastic Dual In-line Package, 8-pin, through-hole mount). Pin 4 and Pin 5 are internally shorted as common Drain terminals for the integrated CoolMOS®.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ICE3B0565J and ICE2QS03G, ICE3BR0665JXKLA1 uniquely delivers universal-input capability, <50mW standby, and EMI-suppressing jitter in a single DIP-8 package - making it optimal for cost-sensitive, regulatory-compliant consumer power supplies.

Availability

ICE3BR0665JXKLA1 is available at Aetrix Electronics and suitable for DVD/Blu-ray players, set-top boxes, and LCD monitor standby supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE3BR0665JXKLA1 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 wafer fabrication facilities.

This part belongs to the CoolSET®-F3R product line, designed specifically for cost-optimized, low-power off-line SMPS in consumer electronics - emphasizing integration, EMI control, and ultra-low standby consumption.

FAQ

What is the purpose of the BA pin on ICE3BR0665JXKLA1?

The BA pin serves two critical functions: first, it accepts an external capacitor to extend the internal 20ms blanking window for robust overload protection during high di/dt events; second, pulling it below 0.33V forces immediate entry into auto-restart mode, providing hardware-level fault containment independent of FB or CS signals.

Does ICE3BR0665JXKLA1 require an external startup resistor?

No. The device integrates a high-voltage startup cell connected directly to the Drain pins (4 & 5), drawing initial current from the rectified AC line. This eliminates the need for an external high-voltage startup resistor, reducing component count, leakage losses, and PCB space - confirmed in Section 3.4 and Figure 2 of the datasheet.

How does Active Burst Mode achieve <50mW standby power?

Active Burst Mode dynamically gates the 65kHz switching activity based on FB voltage level, maintaining regulation solely through optocoupler feedback while minimizing switching losses. At no load, burst cycles occur infrequently, and the integrated soft gate driving further reduces capacitive switching losses - enabling certified <50mW consumption without auxiliary winding or post-regulation.

Can ICE3BR0665JXKLA1 be used in quasi-resonant (QR) topologies?

No. It is a fixed-frequency current-mode controller optimized for continuous conduction mode (CCM) and discontinuous conduction mode (DCM) flyback operation. It lacks QR detection circuitry, zero-voltage switching control, or variable frequency modulation - its oscillator is strictly 65kHz with jitter, not adaptive to resonant valley switching.