Schematic for the STK551U392AGEVB Evaluation Board Evaluation Board TH RCIN VSS ISD 0.1uF 2.2uF 630V 0Ω + - ISO VDD VS1, U + - 220uF/35V VB1 Fault VS2, V 47uF/50V×3 0.1uF×3 LIN3 VB2 - LIN2 VB3 + 16 17 18 19 20 21 22 23 24 25 26 27 28 29 LIN1 13 HIN3 9 10 HIN2 6 HIN1 5 + - 2 + - 1 VS3, W STK551U3xx series 10kΩ VSS Vext 10kΩ U VDD ISO V ISD W RCIN TH + + - - + 470uF/450V×2 - FAULT LIN3 LIN2 LIN1 HIN3 HIN2 HIN1 100pF×6 3.3kΩ×6 12/19/2013 -1- 100Ω×6 www.onsemi.com