Description
Marked "ICE3BR1765J" on the package with Infineon's logo, this is Infineon's ICE3BR1765J, an off-line Switched-Mode Power Supply (SMPS) current-mode PWM controller with an integrated 650V CoolMOS® MOSFET (part of the CoolSET® F3R series). Designed for high-efficiency flyback converters, it integrates both the high-voltage power switch and the controller circuit into a single DIP-8 package.
It features built-in frequency jittering to lower EMI noise, Active Burst Mode for ultra-low standby power consumption, and comprehensive protection mechanisms (overload, open-loop, over-temperature, and over-voltage) with auto-restart capability.
Key Specifications
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Type: Off-Line Current Mode PWM Controller with Integrated 650V CoolMOS®
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Manufacturer: Infineon Technologies
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Package Marking: ICE3BR1765J / H2305/S3E / PF2468597GU
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Package: PG-DIP-8 / PDIP-8 (8-pin dual in-line package)
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Drain-Source Breakdown Voltage ($V_{DS}$): 650V
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$R_{DS(ON)}$, max: $1.70\,\Omega$ at $T_J = 25^\circ\text{C}$
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Switching Frequency: 65 kHz (fixed with built-in frequency jittering)
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Max Output Power ($P_{OUT}$): ~26.5W (85–265 VAC) / up to 44.5W (230 VAC open frame)
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Supply Voltage ($V_{CC}$): 10.5V to 25V ($V_{CC}$ start-up threshold: 18V)
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Max Duty Cycle: 75%
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Operating Junction Temperature Range: $-40^\circ\text{C}$ to $+150^\circ\text{C}$
Common Applications
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Switch-Mode Power Supplies (SMPS) for TVs, set-top boxes, and monitors
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Auxiliary power supplies for home appliances and industrial controllers
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AC-DC power adapters, set-top box power, and chargers
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Low-standby-power off-line flyback converters
Package Includes
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1 x Infineon ICE3BR1765J Off-Line SMPS Controller IC (PG-DIP-8)
