Inventchip Technology IVCR1401 / IVCT-REF00001 | Demoboard IVCT-REF00001

Description

Totem-pole PFC is a high-efficiency bridgeless power factor correction circuit. It is primarily used in Platinum-rated AC/DC converter designs. picture 1-1 shows the main circuit diagram of bridgeless PFC. Q1 and Q2 of this circuit are high-speed SiC (silicon carbide) MOSFET tubes, Q3 and Q4 is a Si MOSFET AC line frequency rectification synchronous tube. This reference design is rated at 2500W. It uses the company's production 650V 60mΩ SiC MOSFET IV1Q06060T3, and dedicated silicon carbide MOSFET driver IC IVCR1401 for high-speed bridge arm. The AC line frequency synchronous rectification arm uses Si MOSFET STY105NM50N.

Features

• Driver current capacity: 4A sink and source peak drive current
• Wide VCC range up to 35V
• Integrated 3.5V negative bias
• Designed for low side and suitable for bootstrap high-side power
• Programmable UVLO for positive and fixed UVLO for negative gate drive voltage
• Desaturation detection for short circuit protection with internal blanking time
• Fault output when UVLO or OCP detected
• 5V 10mA reference for external circuit, e.g. digital isolator
• TTL and CMOS compatible input
• SOIC-8 with optional exposed pad for high frequency and power applications
• Low propagation delay 45ns typical with build-in de-glitch filter

Typical applications

• EV On Board Chargers, EV/HEV inverters and charging stations, PV boosters and inverters, UPS, AC/DC and DC/DC converters

More information

• Datasheet
• IC product information