ZHCS819G March 2012 – March 2018 DRV110
Frequency of the internal PWM clock signal, PWMCLK, that triggers each OUT pin ON-cycle can be adjusted by external resistor, ROSC, connected between OSC and GND. Frequency as a function of resistor value is shown in Figure 5. Default frequency is used when OSC is connected to GND directly. Use Equation 4 to calculate the PWM frequency as a function of the external fixed adjustment resistor value (greater than 160 kΩ).