ICE2QR0665ZXKLA1

I.Overview of ICE2QR0665ZXKLA1

The ICE2QR0665ZXKLA1 is a Quasi-Resonant Flyback Controller with integrated 650V CoolMOS™, developed by Infineon Technologies as part of the CoolSET™-Q1 series. Housed in a 7-pin DIP package, this device incorporates a high-voltage startup unit and advanced quasi-resonant control technology, delivering up to 79W output power over a wide input voltage range. With its high level of integration and comprehensive protection features, this IC is particularly suitable for switch-mode power supply designs requiring high efficiency and reliability.

II.ICE2QR0665ZXKLA1 Parameter

Category:Integrated Circuits (ICs);Power Management (PMIC)AC DC Converters, Offline Switchers

Manufacturer:Infineon Technologies

Series:CoolMOS™, CoolSET™-Q1

Packaging:Tube

Part Status:Active

Output Isolation:Isolated

Internal Switch(s):Yes

Voltage - Breakdown:650V

Topology:Flyback

Voltage - Start Up:18 V

Voltage - Supply (Vcc/Vdd):10.5V ~ 27V

Duty Cycle:50%

Frequency - Switching:52kHz

Power (Watts):79 W

Fault Protection:Current Limiting, Over Load, Over Temperature, Over Voltage

Operating Temperature:-40°C ~ 150°C (TJ)

Package / Case:8-DIP (0.300", 7.62mm), 7 Leads

Supplier Device Package:PG-DIP-7-4

Mounting Type:Through Hole

Base Product Number:ICE2QR0665

III.ICE2QR0665ZXKLA1 Main Characteristics

Highly Integrated Design: Integrates 650V CoolMOS™ power switch and PWM controller

Quasi-Resonant Operation: Valley switching technology effectively reduces switching losses and EMI

High-Voltage Startup Unit: Built-in startup circuit simplifies external circuitry

Wide Vcc Operating Range: Broad supply voltage range from 10.5V to 27V

Comprehensive Protection: Complete fault protection mechanisms

Low Standby Power Consumption: Excellent efficiency under light-load and no-load conditions

Fixed Switching Frequency: 52kHz switching frequency optimizes transformer design

IV.ICE2QR0665ZXKLA1 Application 

Consumer Electronics: LCD TV power adapters, set-top boxes, gaming console power supplies

Industrial Power Supplies: Auxiliary power supplies, motor drive control power

Computer Peripherals: Internal power for printers and monitors

Home Appliances: Switch-mode power supplies for white goods like air conditioners and washing machines

V.Conclusion

The ICE2QR0665ZXKLA1 is a high-performance, highly integrated quasi-resonant flyback controller. Its advanced quasi-resonant technology and comprehensive protection features enable it to meet modern switch-mode power supply requirements for high efficiency, low standby power, and high reliability. Whether used in consumer electronics or industrial equipment, the ICE2QR0665ZXKLA1 delivers excellent performance, making it an ideal choice for developing efficient and compact switch-mode power supplies.