I'm having the pulses in LO pin but HO keeps in high state. The VDD is 12V, the capacitor betwen HS and HB is 0.1uF and switch frequency is 5kHz. First I measured with the LO and HO openned.
After, I tryed load LO and HO with a 10k resistor, like described in a typical application in datasheet (pag. 5, Figure 22). Loaded, the pulses appeared in HO pin but it doesn't drop to 0V. The pulses vary betwen 5 and 12V.
Can anybody help me?