NCV97200 Power Management (PMIC) - Automotive, Multi-Output, Safety Applications Description The NCV97200 is a 2 output monolithic regulator consisting of www.onsemi.com 1 buck regulator and 1 boost regulator with supervisory functions including window voltage monitoring on all outputs and a window QFNW20 watchdog. This product is ideal for ADAS (Advanced Driver MW SUFFIX Assistance Systems) applications and utilizes an independent voltage CASE 484AD reference and an adjustable independent oscillator to realize the supervisory features. MARKING DIAGRAM A 40 V nonsynchronous buck regulator converts the battery supply voltage to a 3.3 V output, and delivers up to 3 A (peak). This output 1 97200 rail may be used as the low voltage input voltage for the XX nonsynchronous secondary boost converter. The secondary boost is ALYW fixed and is intended to supply a low current 5.0 V rail for InVehicle Networking circuits (IVN). All internal MOSFETs are Nchannel devices, and a bootstrap 97200 = Specific Device Code circuit is used to drive the buck highside MOSFET. Both SMPS XX = 01 or 33 A = Assembly Location outputs use peak current mode control with internal slope L = Wafer Lot compensation. The IC incorporates an internal regulator that supplies Y = Year charge to the lowvoltage gate drivers. W = Work Week The NCV97200 is a functional safety solution that reduces the time = PbFree Package required to develop safety systems that comply with the International (Note: Microdot may be in either location) Standards Organization (ISO) 26262. The device includes a range of integrated safety features such as dedicated feedback references, output voltage monitoring, and window watchdog. SAFETY DESIGN ASIL B Features ASIL B Product developed in compliance with 1 Enabled Buck Converter ISO 26262 for which a complete safety package is available. 1 Boost Converter for IVN Supply Wide Input of 4.1 to 40 V with Undervoltage Lockout (UVLO) Fixed Frequency Operation at 2 MHz ORDERING INFORMATION See detailed ordering, marking and shipping information on Window Watchdog with Independent References page 21 of this data sheet. Cyclebycycle Current Limit Protection External Frequency Synchronization Typical Applications Pseudorandom Spread Spectrum for Improved EMI Safety Applications Option for Switcher Shutdown upon Watchdog Fault ADAS (Advanced Driver Assistance Systems) (controlled by part number) Body Electronics NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Telematics Requirements AECQ100 Qualified and PPAP Capable Semiconductor Components Industries, LLC, 2017 1 Publication Order Number: October, 2019 Rev. 4 NCV97200/DNCV97200 LINEAR VDRV1 REGULATOR BST1 VBAT REGULATOR 1 SW1 3.3 VOLT COMP1 STEP DOWN VOUT1 RESET OUTPUT RSTB1 LOGIC MONITOR WINDOW WDI WATCHDOG WATCHDOG WDT OSCILLATOR SW2 EN REGULATOR 2 5.0 VOLT GND2 BOOST VOUT2 RSTB2 OUTPUT MONITOR EN DELAY VOUT PD TIMER TSD FAULT VIN UVLO LOGIC VIN OV VOLTAGE RSTB VM FB VM MONITOR VBAT MAIN SPREAD SYNCI OSCILLATOR SPECTRUM GND1 SYNCO Figure 1. NCV97200 Block Diagram www.onsemi.com 2