SiC450, SiC451, SiC453 www.vishay.com Vishay Siliconix FUNCTIONAL BLOCK DIAGRAM VIN EN PV UVLO PV CC Linear regulator IN VDD VDD PVCC UVLO SW PFD Charge RT / SYNC pump BOOT Ramp generator VSEN+ PWM tON Differential comparator High side amplifier generator PH VSEN- OTA driver Rcomp SW Minimum t C OFF comp Cp Control Reference logic generator PVCC Bandgap and DAC VSET VSET ADC Low side ADDR ADC driver PEC/BUS Command management registers SALRT PMBus interface SCLK 1K NVM Over SDA current PGND Fault protection management Monitoring Zero AGND compensation PGOOD crossing Monitoring P / P circuit IN OUT detector sense calculation ADC circuits PGOOD Fig. 4 - Functional Block Diagram S21-0213-Rev. B, 08-Mar-2021 6 Document Number: 77863 For technical questions, contact: powerictechsupport@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
