38.11 ZCD Figure 38-166. Falling Edge Response Time vs. VDD Figure 38-167. Rising Edge Response Time vs. VDD Figure 38-168. Zero-Cross Detector Pin Voltage vs. Current (VDD = 5.5V) Figure 38-169. Zero-Cross Detector Pin Voltage vs. Current (VDD = 3.0V) Figure 38-170. Zero-Cross Detector Trip Voltage vs. VDD