Infineon Technologies ICE2A765PBKSA1

Overview

ICE2A765PBKSA1 from Infineon Technologies is an off-line SMPS current mode controller with integrated 650V CoolMOS™ power transistor, designed for high-efficiency AC/DC flyback converters in open-frame industrial and consumer power supplies. It delivers 240W continuous output at Ta=75°C, operates at 100kHz switching frequency, features <±5% peak current limiting tolerance, and supports low-power standby mode compliant with European Commission requirements.

For engineers reviewing the ICE2A765PBKSA1 datasheet, ICE2A765PBKSA1 pinout, ICE2A765PBKSA1 application, or ICE2A765PBKSA1 equivalent, key selection considerations include its TO-220-6-47 package with isolated drain, adjustable soft-start timing via external capacitor, auto-restart protection under overload/open-loop conditions, and precise leading-edge blanking for reliable current sensing in high-noise SMPS environments.

Technical Context

The ICE2A765PBKSA1 integrates a 650V avalanche-rugged CoolMOS™ transistor and a current-mode PWM controller in a single PG-TO220-6-47 package, eliminating external high-voltage MOSFET layout and gate-drive complexity. Its internal protection unit implements thermal shutdown, overvoltage detection during auto-restart, and overload recovery with controlled restart intervals.

It employs frequency reduction in standby mode (down to 20–21.5kHz) to suppress audible noise while maintaining stable output regulation, and uses propagation delay compensation in the current-sense path to ensure accurate peak-current limiting across temperature and process variation.

Key Specifications

Pinout & Package

ICE2A765PBKSA1 is housed in a PG-TO220-6-47 package with isolated drain terminals and creepage-enhanced layout for reinforced insulation. The package features a metal tab (Drain) electrically isolated from other pins, enabling direct heatsink mounting without insulating pads.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ICE2A765I, ICE2A765PBKSA1 offers reinforced isolation and simplified thermal design; versus ICE2B765P2, it delivers higher power density and faster transient response at the expense of slightly higher EMI filtering requirements.

Availability

ICE2A765PBKSA1 is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, consumer LED drivers, and white goods auxiliary power systems requiring stable component supply, long-term lifecycle support, and certified creepage-compliant packaging.

Supply support for ICE2A765PBKSA1 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.

ICE2A765PBKSA1 belongs to the CoolSET™-F2 family-designed specifically for high-efficiency, low-standby-power off-line SMPS in cost-sensitive, high-volume applications demanding integrated HV switching and robust protection.

FAQ

What is the maximum continuous output power supported by ICE2A765PBKSA1?

ICE2A765PBKSA1 supports 240W continuous output power in an open-frame design at T_a=75°C, T_j=125°C, and thermal resistance R_thCA=2.7K/W. This rating assumes proper PCB copper area (≥6 cm²), forced airflow, and correct heatsink interface per Infineon's layout recommendations in Section 6 of the datasheet.

How does the SoftS pin function during fault conditions?

The SoftS pin serves dual roles: during startup, it controls soft-start timing via an external capacitor; during faults (e.g., overload or open loop), it is actively pulled low by the internal protection unit to initiate auto-restart mode. The restart interval is determined by the RC time constant on this pin, enabling user-defined recovery behavior without external circuitry.

Does ICE2A765PBKSA1 require an external bootstrap capacitor?

No. ICE2A765PBKSA1 integrates the high-voltage CoolMOS™ transistor and its gate driver within the same package, eliminating the need for external bootstrap or gate-drive components. The VCC pin supplies the controller logic directly, and the CoolMOS™ is driven internally from the same supply rail with optimized drive strength and slew rate control.

What is the purpose of the isolated drain tab in the TO-220-6-47 package?

The isolated drain tab in the PG-TO220-6-47 package allows direct mechanical attachment to a heatsink without electrical insulation hardware. This reduces thermal resistance, simplifies assembly, and improves safety by ensuring creepage and clearance compliance between primary-side high voltage and secondary-side circuits per IEC 62368-1.