DC/DC Converter QA01C Targets SiC MOSFET Drivers
Mornsun released the DC/DC Converter QA01C designed for use as a DC/DC power supply module for SiC MOSFET driver. It operates with a nominal 15VDC input (13.5 to 16.5 VDC) and produces outputs of +20VDC and -4VDC, both with 100mA of output current. With its features of low on-resistance and low leakage current, it meets the requirements of SiC MOSFET drivers. The mode of mutual connection after two independent outputs is adopted internally for better energy provision of device turn-on and turn-off. General applications are expected to include switching power converters, AC servo drives, welding equipment, industrial power conversion, and uninterruptible power supplies.
Features of DC/DC Converter QA01C
Efficiency up to 83%;
Capacitive load: 220uF;
Isolation capacitance: 3.5pF;
Operation temperature: -40~105°C;
Continuous short-circuit protection.
Application of DC/DC Converter QA01C
SiC MOSFET driver can receive asymmetrically
positive driving voltage of 20V and turn off voltage bias -4V from QA01C. In
order to prevent the damage to the grid electrode, adding D2(zener diode) &
D3(zener diode) is necessary to absorb the peak voltage. In addition, we
recommend opto-coupler isolation to achieve the signal isolation between control
circuit and main power circuit, but the opto-coupler must have high CMRR(30KV/us)
/high isolation voltage/ultra-short delay time to meet the characteristic high
frequency of SiC MOSFET.
Sample request: http://www.mornsun-power.com/html/support/SampleInquiry.html