Infineon Technologies ICE3AR0680JZXKLA1

Overview

ICE3AR0680JZXKLA1 from Infineon Technologies is an integrated off-line SMPS current-mode controller with monolithically embedded 800V avalanche-rugged CoolMOS® and startup cell in PG-DIP-7 package. It delivers 82W at 230VAC ±15%, operates at fixed 100kHz switching frequency with jitter, features active burst mode for <100mW standby power, and includes adjustable brownout, auto-restart protection, and propagation delay compensation - deployed in auxiliary power supplies for PCs and servers.

For engineers reviewing the ICE3AR0680JZXKLA1 datasheet, ICE3AR0680JZXKLA1 pinout, ICE3AR0680JZXKLA1 application, or ICE3AR0680JZXKLA1 equivalent, key selection criteria include its integrated 800V MOSFET voltage margin, selectable burst entry/exit thresholds, ±5% current limit tolerance, 50°C hysteresis overtemperature protection, and DIP-7 thermal performance without external heatsink under 50°C ambient.

Technical Context

This device implements a BiCMOS-based current-mode PWM controller with cycle-by-cycle peak current limiting, built-in 10ms soft-start, and patented propagation delay compensation for consistent power limiting across input line variations. Its control architecture integrates brownout detection, extended blanking (20ms base + capacitor-adjustable), and dual-mode burst operation with feedback-voltage swing reduced to 0.3V during burst to cut output ripple by 40%.

The integrated 800V CoolMOS® uses a startup cell that sources 0.9mA to charge VCC until 17V lock-on, then disables to eliminate standby loss. Gate drive incorporates a 50Ω internal turn-on resistor and soft-switching profile to reduce EMI and dV/dt stress - critical for high-voltage flyback designs operating across universal AC input (85–265VAC).

Key Specifications

Pinout & Package

Package: PG-DIP-7 (Plastic Dual-In-Line Package, 7-pin, 0.3" wide, creepage ≥5.0mm per IEC 60950-1). Pin 6 is omitted (no physical pin); Pin 4 is NC.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ICE3BR0665JZ, ICE3AR0680JZXKLA1 adds 150V voltage headroom and brownout adjustability for universal-input reliability; versus LD7575PS, it trades flexibility for integration - reducing component count by 4+ parts and eliminating gate-drive loop tuning.

Availability

ICE3AR0680JZXKLA1 is available at Aetrix Electronics and suitable for PC auxiliary power supplies, server standby PSUs, DVD/Blu-ray player adapters, and set-top box designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE3AR0680JZXKLA1 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 electronics, and security solutions, with global R&D and manufacturing infrastructure.

The CoolSET® product line delivers fully integrated AC-DC controller + MOSFET combinations targeting low-to-mid power offline SMPS, emphasizing high-voltage robustness, ultra-low standby power, and simplified compliance with global energy regulations.

FAQ

What is the maximum continuous output power achievable with ICE3AR0680JZXKLA1 at 115VAC input?

At 115VAC nominal input (85–132VAC range), ICE3AR0680JZXKLA1 supports up to 52W continuous output power with 50°C ambient and no copper heatsink, as specified in the datasheet's input power curve (Figure 6). This rating assumes DIP-7 PCB layout with minimum recommended copper area and standard FR-4 substrate. Derating is required above 50°C ambient or with restricted airflow.

How does the BBA pin implement brownout protection, and what external components are needed?

The BBA pin implements brownout by comparing a resistor-divider voltage against an internal 1.25V reference. To set a 90VAC brownout threshold, use R1 = 1.2MΩ from BBA to AC rectified DC bus and R2 = 15kΩ from BBA to GND. No capacitor is required for basic brownout; adding a capacitor to ground enables extended blanking time. Pulling BBA below 0.4V forces auto-restart mode.

Can ICE3AR0680JZXKLA1 operate without an external current-sense resistor?

No - ICE3AR0680JZXKLA1 requires an external shunt resistor between the CS pin and CoolMOS® source (pin 3 to pin 3 internal connection) to sense peak primary current. The internal current-limit comparator trips at 1.0V on CS; typical values range from 0.22Ω to 0.47Ω depending on desired current limit. Omitting the resistor disables overcurrent protection and risks MOSFET failure.

Is the 100kHz switching frequency adjustable, or is it strictly fixed?

The 100kHz switching frequency is internally fixed and non-adjustable; however, the oscillator includes a jitter function that modulates frequency ±4kHz around 100kHz to spread EMI energy. No external timing components (e.g., RT/CT pins) are provided - this differs from standalone controllers like UC384x series. Frequency stability is ±2% over temperature and line.