High-performance SMPS current-mode controller with integrated 650 V CoolMOS® and startup cell. Ideal for low power offline switch-mode power supply designs requiring low standby power, overcurrent protection, soft start, and jittered switching for EMI reduction. The ICE3BR0665J (CoolSET®-F3R) from Infineon is a fixed-frequency current mode controller tailored for offline SMPS (switched mode power supplies). It integrates a 650 V avalanche-rugged CoolMOS® transistor and startup cell into a DIP-8 package, reducing external component count while offering robust protection and efficiency features.

Key Features

• Integrated 650 V CoolMOS® switch device

• Fixed switching frequency: ~65 kHz

• Active Burst Mode: ultra low standby power (typically < 50 mW)

• Auto restart protection: overload, short circuit, overtemperature, overvoltage 

• Built-in soft start & blanking window with option to extend blanking period 

• External auto-restart enable pin for added control

• Frequency jitter and soft gate driving to reduce EMI

• Max duty cycle: ~75 %

• Low tolerance current limit (±5 %)

• RoHS compliant, lead-free plating

Key Specifications

Parameter	Value / Range
Part Number	ICE3BR0665J / 3BR0665J
Application	Off-line SMPS current mode controller
Max Voltage (VDS)	650 V
Switching Frequency	65 kHz (fixed)
Max Output Power	~41 W (in typical designs)
Package	DIP-8 (PG-DIP-8)
Protection Features	Overload, OVP, overtemperature, auto-restart, current limiting
Standby Power	< 50 mW (typical in burst mode)
Duty Cycle	Up to ~75 %
Operating Temperature	–40 °C to +105 °C (TA)