Isolated Igbt Gate Driver Ic

Integrated galvanic isolation and low on resistance drive transistors provide high charging and discharging current low dynamic saturation voltage and rail to rail gate voltage control.

Isolated igbt gate driver ic.

Decades of application expertise and technology development at both infineon and international rectifier have produced a portfolio of gate driver ics for use with silicon and wide bandgap power devices such as mosfets discrete igbts igbt modules sic mosfets and gan hemts we offer excellent product families of galvanic isolated gate drivers automotive qualifies gate drivers 200 v 500 700. Galvanic isolation is attained using a high voltage on chip micro transformer that ensures commands and diagnostic information are reliably transferred to and from the. These isolated gate drivers require isolated power supply which is provided by this reference design. Each igbt is driven by a single isolated gate driver.

Driver to driver withstand voltage is 1500 vdc and drivers can be grounded to. Current and temperature sense minimizes igbt sic stress during faults. Robust strong and precise single and dual channel isolated gate driver ics for mosfets igbts igbt modules sic mosfets and gan hemts eicedriver galvanically isolated gate drivers use the magnetically coupled coreless transformer ct technology to provide signal transfer across the galvanic isolation. The other terminals of a mosfet are source and drain and for an igbt they.

The main features of the board are galvanic isolation isolation inside the half bridge by defined creepage short circuit protection active miller clamp and under voltage lock out. High voltage gate driver outputs from the low voltage control signals. The gd3100 is an advanced single channel gate driver for igbts sic. An igbt power mosfet is a voltage controlled device that is used as a switching element in power supply circuits and motor drives amongst other systems.

The adum4135 is a single channel gate driver specifically optimized for driving insulated gate bipolar transistors igbts. Isolation ratings of 1 2 5 3 75 and 5 0 kv are available. The emitters of each of the top igbts float which necessitates using isolated gate driver for each of the top igbts. The adum4135 includes a miller clamp to provide robust igbt turn off with a single rail supply when the gate voltage drops below 2 v.

Our isodriver product family offers ultra fast propagation delays for better timing margins rock solid operation over temperature and time and unparalleled size and cost benefits. Input ttl logic and output power stage capacitive isolated fault feedback are separated by a capacitive silicon dioxide sio 2. The gate is the electrically isolated control terminal for each device. Analog devices inc i coupler technology provides isolation between the input signal and the output gate drive.