Smart gate driver photocoupler protects IGBT against overcurrent

The TLP5214 has a number of advanced integrated functions including IGBT desaturation detection, active miller clamping, soft IGBT turn-off, undervoltage lockout and fault detection. By having the ability to detect and handle malfunction in a single chip, Toshiba says the device helps reduce overall system cost. The SO16L package also guarantees a creepage distance of 8mm (min), making the TLP5214 suitbale for applications that require higher isolation specification. Combined with the high reliability infrared LED, the photocoupler is targeted at applications such as factory automation, home photovoltaic power systems, digital home appliances and UPS. Maximum propagation delay time 150ns and propagation delay skew ±80ns are guaranteed within the defined operation temperature, making it possible to reduce dead time in the inverter circuit.