Fairchild's High Voltage Gate Driver ICs Provide Improved Noise Immunity and Performance

Power engineers designing motor and industrial applications such as motor drive inverters, distributed power supplies and telecom system power supplies, need a high voltage gate driver solution that provides improved noise immunity and increased performance, while being pin-compatible to solutions currently available.

Fairchild now meets these needs by offering designers new choices in high voltage gate drive ICs, including the FAN7392 , a 2-input, 2-output / high and low side gate driver with shutdown function, the FAN7393 , a 1-input, 2-output / half bridge with shutdown and controllable dead time, the FAN73932 , a 1-input, 2-output / half bridge with shutdown and fixed dead time control and the FAN73933 , a 2-input, 2-output / half bridge with controllable dead time.

These devices provide improved noise immunity over competitive solutions, and are part of the FAN739x series, which features an innovative common-mode dv/dt noise canceling circuit that enables stable operation of the high voltage gate driver under high dv/dt noise circumstances. The devices also feature an advanced level shift circuit that offers high-side gate driver operation with negative V S swings of up to -9.8V (at V BS = 15V), where Vs is the high voltage floating supply return and V BS is the high side floating supply voltage.

Additionally, the FAN739x series provide stable operation over a wide temperature range of -40° to 125°C. The series also features floating channels for bootstrap operation to +600V, built-in under-voltage lockout for V BS , and matched propagation delay for both channels. These devices also eliminate a buffer transistor when compared to other low current HVICs on the market.

Other devices in the series include the FAN7390 (2-input, 2-output / high & low side gate driver), and the FAN73901 (2-input, 2-output/ high & low side gate driver). Available in 8-pin DIP, 8-pin SOP, 14-pin SOIC and 16-pin SOIC packages, devices in the series are pin-compatible with existing solutions, making it an easy replacement in any design or component.

Fairchild is a leading source of analogue and power IC innovation, providing a complete solution of high voltage gate drivers that combine IP building blocks with systems-level expertise to optimize energy efficient designs and deliver best-in-class solutions.