These are the input pins of the int

These are the input pins of the internal motor driversfor each phase. The HINx pin acts as a high-sidecontroller; the LINx pin acts as a low-side controller.Figure 12-6 shows an internal circuit diagram of theHINx or LINx pin. This is a CMOS Schmitt trigger circuitwith a built-in 20 kΩ pull-down resistor, and its inputlogic is active high.Input signals across the HINx–COMx and the LINx–COMx pins in each phase should be set within the rangesprovided in Table 12-1, below. Note that dead timesetting must be done for HINx and LINx signals becausethe IC does not have a dead time generator.The higher PWM carrier frequency rises, the moreswitching loss increases. Hence, the PWM carrierfrequency must be set so that operational casetemperatures and junction temperatures have sufficientmargins against the absolute maximum ranges, specifiedin Section 1.If the signals from the microcontroller become unstable,the IC may result in malfunctions. To avoid this event, theoutputs from the microcontroller output line should not behigh impedance.