Infineon Technologies ICE3RBR1765JZXKLA1

Overview

ICE3RBR1765JZXKLA1 from Infineon Technologies is an off-line SMPS current-mode controller IC integrating a 650V CoolMOS® power transistor, startup cell, and frequency jitter functionality in a PG-DIP-7 package. It delivers 44.5W max input power at 230VAC ±15%, operates at a fixed 65kHz switching frequency, supports active burst mode for <50mW standby power, and functions down to –40°C ambient. It is used in AC/DC auxiliary power supplies for TVs, printers, and home theater systems.

For engineers reviewing the ICE3RBR1765JZXKLA1 datasheet, ICE3RBR1765JZXKLA1 pinout, ICE3RBR1765JZXKLA1 application, or ICE3RBR1765JZXKLA1 equivalent, key selection criteria include integrated 650V CoolMOS®, built-in frequency jitter for EMI reduction, external auto-restart enable (BA pin), extendable blanking time, and BiCMOS-based wide VCC range (10.5–25V).

Technical Context

This controller implements current-mode PWM control with propagation delay compensation and leading-edge blanking (220ns) to ensure precise peak-current limiting (<±5% tolerance). Its internal oscillator includes frequency jitter to suppress EMI peaks, while the soft gate driver reduces voltage overshoot and dv/dt stress on the integrated CoolMOS®.

The control unit integrates dual-mode blanking (20ms base + extendable via BA pin capacitor), active burst mode with optocoupler feedback retention, and auto-restart protection triggered by overload, overtemperature (>130°C), VCC undervoltage (<10.5V), or overvoltage (>25.5V). Startup is handled by an internal high-voltage cell connected directly to the Drain pin-eliminating the need for an external startup resistor.

Key Specifications

Pinout & Package

ICE3RBR1765JZXKLA1 is housed in a PG-DIP-7 (Plastic Dual-In-Line Package, 7-pin) with 0.3" width and through-hole mounting. The package uses green mold compound and Pb-free lead plating per RoHS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ICE3RBR1765JZ (reel variant), ICE3RBR1765JZXKLA1 offers identical performance and is drop-in compatible; versus ICE3BR1765JZ, it adds –40°C operation, extendable blanking, and external auto-restart-critical for industrial auxiliary supplies and regulatory-compliant standby designs.

Availability

ICE3RBR1765JZXKLA1 is available at Aetrix Electronics and suitable for adapter/charger designs, set-top box auxiliary supplies, and printer mainboard power systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE3RBR1765JZXKLA1 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 leader specializing in power management, automotive, and industrial control ICs, with global R&D and manufacturing infrastructure.

This device belongs to the CoolSET®-F3R (Jitter Mode) product line, engineered specifically for highly integrated, low-EMI, energy-efficient off-line SMPS in consumer and industrial auxiliary power applications.

FAQ

What is the purpose of the BA pin on ICE3RBR1765JZXKLA1?

The BA pin serves two distinct functions: (1) extending the internal 20ms blanking window for high-current load jumps via an external capacitor to ground, and (2) enabling external initiation of auto-restart mode by pulling the pin below 0.33V. This dual functionality supports both robust overload handling and system-level fault coordination without additional logic.

Does ICE3RBR1765JZXKLA1 require an external startup resistor?

No. ICE3RBR1765JZXKLA1 integrates a high-voltage startup cell connected directly to the Drain pin, eliminating the need for an external high-voltage startup resistor. This reduces component count, improves light-load efficiency, and enhances reliability by removing a common failure point in traditional flyback controllers.

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

Active Burst Mode dynamically modulates switching bursts while retaining optocoupler feedback control-enabling continuous regulation even at near-zero load. Combined with BiCMOS low-quiescent design, integrated startup, and soft gate driving, it achieves sub-50mW consumption without sacrificing output voltage accuracy or wake-up response time.

What is the maximum continuous output power supported by ICE3RBR1765JZXKLA1?

At 230VAC ±15% and T_a=50°C with no heatsink, ICE3RBR1765JZXKLA1 supports up to 44.5W input power-typically translating to 36–38W continuous DC output depending on topology and efficiency. At full universal input (85–265VAC), max input power is 29.5W, corresponding to ~24–26W output under typical flyback conditions.