REF5QR1680BG30W1TOBO1

REF5QR1680BG30W1TOBO1 is an auxiliary power supply reference design based on Infineon’s 5th generation quasi-resonant CoolSET™ family (ICE5QR1680BG) configured in a flyback topology. The power supply supports an input range up to 264VAC with 15V/0.15A, 12V/2.2A and 5V/0.2A output. With an optional AC crossing detection circuitry couple to the secondary side for MCU processing, it allows the designer to control an AC motor with ease. Likewise, the MCU on the secondary side is able to turn OFF the LDO on the primary side to improve the performance of standby power. Typical applications include auxiliary power supply for AC-DC, home appliances, motor control and drives, telecom and server.

• 30W high efficiency auxiliary power supply for refrigerator
• Universal input range from 85 to 264VAC
• Output #1 of 15V/0.15A, output #2: 12V/2.2A, output #3: 5V/0.2A
• > 85% full-load efficiency at 230VAC
• Optional AC zero crossing detection circuitry and optional ON/OFF control of LDO at primary side
• Multi-output support for IPM gate driver, relay, MCU, and miscellaneous biasing needs
• High efficiency design with synchronous rectification and DC-DC at secondary side
• Ease of interface and/or control AC motor with AC zero crossing detection circuitry
• Low standby with the ability to turn off LDO at primary side
• Robust operation thanks to an integrated 800V MOSFET