SiC645 www.vishay.com Vishay Siliconix 60 A VRPower Smart Power Stage (SPS) Module with Integrated High-Accuracy Current and Temperature Monitors FEATURES Input range: 4.5 V to 18 V Supports 60 A DC current Compatible with 3.3 V (SiC645A) and 5 V (SiC645) tri-state PWM Down slope current sensing 3 % accuracy current monitor (IMON) with REF input IN 8 mV/C temperature monitor with OT flag Dedicated low-side FET control input DESCRIPTION Fault protection The SiC645 is a smart VRPower device that integrates a high side and low side MOSFET, a high performance driver - High-side FET short and over-current protection with integrated bootstrap FET. The SiC645 offers high - Over-temperature protection accuracy current and temperature monitors that can be fed - V and V under voltage lockout (UVLO) CC IN back to the controller and doubler to complete a multiphase Open drain fault reporting output DC/DC system. They simplify design and increase performance by eliminating the DCR sensing network and Up to 2 MHz switching frequency associated thermal compensation. Light-load efficiency is Material categorization: for definitions of compliance supported via a dedicated left control pin. An industry please see www.vishay.com/doc 99912 leading thermally enhanced dual cooled, 5 mm x 5 mm PowerPAK MLP package allows minimal overall PCB real APPLICATIONS estate and low-profile construction. High frequency and high efficiency VRM and VRD The devices feature a 3.3 V (SiC645A) or 5 V (SiC645) Core, graphic, and memory regulators for microprocessors compatible tri-state PWM input that, working together with High density VR for server, networking, and cloud computing multiphase PWM controllers, will provide a robustsolution in POL DC/DC converters and video gaming consoles the event of abnormal operating conditions. The SiC645 also improves system performance and reliability with integrated fault protection of UVLO, over-temperature and over-current. An open-drain fault reporting pin simplifies the handshake between the smart VRPower device and multiphase controllers and can be used to disable the controller during start-up and fault conditions. TYPICAL APPLICATION DIAGRAM +12 V +5 V V CC LGCTRL PWM Shoot- PWM through IMON L CS n OUT V protection OUT REF SW IN CSRTN n TMON Multiphase TEMP PV CC controller Smart FAULT control EN C OUT SiC645 GND Fig. 1 - SiC645 Typical Application Block Diagram S16-2233-Rev. B, 31-Oct-16 Document Number: 65424 1 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 V CC PV CC GND BOOT PHASE V IN GND SiC645 www.vishay.com Vishay Siliconix TYPICAL APPLICATION CIRCUIT WITH SiC645 +3.3 V V CCS SiC645 V V CCS CC 5 V V PV 5 V CC CC 5 V LGCTRL V V IN IN FAULT BOOT TEMPVCORE TMON PHASE VSENV CORE PWM1 PWM SW RGNDV CORE CS1 IMON ENV CORE CSRTN1 REF GND IN PGV CORE SiC645 Multiphase 5 V V PV 5 V CC CC controller 5 V LGCTRL V V IN IN FAULT BOOT V CORE SVDATA TMON PHASE PWM SW SVCLK PWM2 CS2 IMON nSVALERT CSRTN2 REF GND IN nVRHOT nPINALERT PWM3-5 PMSDA N phases CS3-5 PMSCL CSRTN3-5 nPMALERT SiC645 5 V V PV 5 V CC CC 5 V LGCTRL V V IN IN CFP FAULT BOOT TMON PHASE PWM SW PWM6 V IN CS6 IMON CSRTN6 REF GND IN V INSEN SiC645 5 V V PV 5 V CC CC 5 V LGCTRL V V IN IN FAULT BOOT PGV TEMPV TMON PHASE SA SA ENV PWM SW SA PWMV SA CSV IMON SA RGNDV SA CSRTNV REF GND SA IN VSENV SA V SA V CCS GND ADDRESS CONFIG Fig. 2 - Typical Application Circuit S16-2233-Rev. B, 31-Oct-16 Document Number: 65424 2 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