[原创] TI UCC2152010kW三相逆变器参考设计TIDA－00366

TI公司的UCC21520是绝缘的5.7 kVrms双路栅极驱动器,源电流4A,沉电流6A,用来驱动功率MOSFET,IGBT和SiC MOSFET,驱动频率高达5MHz,传输时延19ns,工作温度–40 到 +125℃,主要用在离线AC/DC转换器,服务器,通信和IT以及工业基础设备,马达控制和DC/AC太阳能逆变器,LED照明和电感加热器,UPS和HEV/BEV电池充电器.本文介绍了UCC21520主要特性,功能框图,以及10kW三相逆变器参考设计TIDA-00366主要特性,电路图,材料清单和PCB设计图.

The UCC21520 is an isolated dual-channel gate driver with 4-A source and 6-A sink peak current. It is designed to drive power MOSFETs, IGBTs, and SiC MOSFETs up to 5-MHz with best-in-class propagation delay and pulse-width distortion.

The input side is isolated from the two output drivers by a 5.7-kVRMS reinforced isolation barrier, with a minimum of 100-V/ns common-mode transient immunity (CMTI). Internal functional isolation between the two secondary-side drivers allows a working voltage of up to 1500 VDC.

This driver can be configured as two low-side drivers, two high-side drivers, or a half-bridge driver with programmable dead time (DT). A disable pin shuts down both outputs simultaneously when it is set high, and allows normal operation when left open or grounded. As a fail-safe measure, primary-side logic failures force both outputs low.
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