5 Application Information

The MCP14H2304, halfbridge gate drive is used to optimally and efficiently drive the gate of MOSFETs or IGBTs. Below (Figure 5-1) is an example application using the MCP14H2304 with MOSFETs to make three halfbridge circuits used to drive a three-phase motor. Typically, three-phase motor applications are AC Induction motors, PMSMs, and BLDC motors. The MCP14H2304 is typically used for stepper motor applications. MCP14H2304 can also be used in power supplies. The important parameters of the MCP14H2304 are discussed in this section. The main topics are: bootstrap resistor, diode and capacitor selection, gate driver component selection, decoupling capacitors, and PCB layout suggestions.