FAN3122CMPX Integrated Circuits (ICs)

FAN3122CMPX is an integrated gate driver targeted at motor applications. It is used to operate external power devices such as FETs and IGBTs. It is a high-power, high-side, non-inverting gate driver with increased on-resistance and concurrently matched propagation delay over high-side FETs and IGBTs. Additionally, the FAN3122CMPX features improved high-side drive capability, fast switching speed, low standby current, and integrated protective features. By utilizing FAN3122CMPX, designers can easily reduce the development cycle, BOM count, and PCB size.

Application Field

FAN3122CMPX is an optimized gate driver solution for motor control applications. It adopts internal FETs to drive motors operating up to 200 A, and can drive IGBTs with VCE ratings up to 600 V. Due to its integrated full set of protection functions, the FAN3122CMPX is also suitable for industrial motor control, lighting ballasts, and appliance motors. It is ideal for a range of applications including motor control, motion control, BLDC motor control, and solenoid/valve control.

Working Principle

The FAN3122CMPX\'s working principle is the same as other gate drivers. When the driver input voltage is close to ground, the high-side FET gate is connected to ground and the low-side FET gate is connected to the operating voltage for normal operation. When the input voltage is close to the operating voltage, the low-side FET gate will be connected to ground and the high-side FET gate is connected to the operating voltage for reverse operation. In addition, FAN3122CMPX features integrated protection functions such as over-voltage protection, under-voltage protection, over-current protection and over-temperature protection.

Conclusion

The FAN3122CMPX incorporates a high-side and a low-side FET gate driver with increased on-resistance and concurrently matched propagation delays, as well as improved high-side drive capability, fast switching speed, low standby current, and integrated protection functions. It is an optimal solution for motor control applications, and offers a great way to reduce development time, BOM costs, and PCB size.