Three-phase gate driver integrates PMU

Infineon Technologies AG has expanded its MOTIX family of automotive and industrial motor control applications with the introduction of the MOTIX  6ED2742S01Q three-phase gate driver IC. The 160-V silicon-on-insulator (SOI) gate driver features an integrated power management unit (PMU), along with a current sense amplifier and overcurrent protection.

(Source: Infineon Technologies)

The highly integrated gate driver, housed in a QFN-32 package with a thermally efficient exposed power pad, targets battery-powered industrial BLDC motor control drives including cordless power tools, robotics, drones, and light electric vehicles (LEVs).

The 6ED2742S01Q includes integrated bootstrap diodes that power three external high-side bootstrap capacitors, which support 100 percent duty cycle operation through a trickle charge pump. The integrated current sense amplifier (CSA) features selectable gain between the low-side supply voltage (V _SS) and the low-side power ground return (COM).

Protection features include undervoltage lock-out, overcurrent protection with configurable threshold, fault communication and automatic fault recovery. The output drivers integrate a high-pulse current buffer stage designed for minimal driver cross-conduction.

The MOTIX gate driver provides a 1-A source and 2-A sink current with independent under-voltage lock-out (UVLO) for both high-side and low-side gate drives. Other features include a propagation delay of 100 ns, a minimum dead time of 100 ns with built-in delay matching, an industrial operating temperature range of -40°C to 125°C and support for battery voltages from 10.8 V to 120 V.

The MOTIX 6ED2742S01Q can drive OptiMOS and StrongIRFET MOSFETs in single or parallel combinations. It can be ordered now in a 5 × 5 mm² QFN-32 package with an exposed pad and a 2 kV HBM ESD rating.