Over voltage lock out at Vcc = 20V Input: 5V/div. Input: 2V/div. Output: 5V/div. Output: 5V/div. IR2121 ERR pin: 5V/div. Horiz.: 500ns/div. Horiz: 1s/div. FILE: X1-ERR.PLT Figure 26b. Waveforms associated with the Figure 27. Shutdown due to high V CEsat circuit of Figure 26a. The short circuit protection
