NCV7471BDQ5R2G ON Semiconductor

NCV7471B, NCV7471C System Basis Chip with a High-Speed CAN/CANFD, Two LINs and a Boost-Buck DC/DC Converter www.onsemi.com NCV7471B/C is a System Basis Chip (SBC) integrating functions typically found in automotive Electronic Control Units (ECUs) in the SSOP36EP body domain. NCV7471B/C provides and monitors the lowvoltage DQ SUFFIX power supplies for the application microcontroller and other loads, CASE 940AB monitors the application software via a watchdog and includes highspeed CAN/CANFD and LIN transceivers allowing the ECU to MARKING DIAGRAM host multiple communication nodes or to act as a gateway unit. The onchip state controller ensures safe powerup sequence and supports lowpower modes with a configurable set of features including NCV7471x5 wakeup from the communication buses or by a local digital signal AWLYYWW WU. The status of several NCV7471B/C internal blocks can be read by the microcontroller through the serial peripheral interface or can be used to generate an interrupt request. NCV7471x5 = Specific Device Code x = B or C A = Assembly Location Features WL = Wafer Lot Control Logic YY = Year Ensures safe powerup sequence and the correct reaction to WW = Work Week different supply conditions = PbFree Package Controls mode transitions including the power management and (Note: Microdot may be in either location) wakeup treatment bus wakeups, local wakeups (via WU pin) and cyclic wakeups (through the onchip timer) ORDERING INFORMATION Generates reset and interrupt requests See detailed ordering and shipping information on page 52 of this data sheet. Serial Peripheral Interface Operates with 16bit frames Two LIN Transceivers Ensures communication with the ECUs ISO179874, LIN2.X and J2602 compliant microcontroller unit TxD dominant timeout protection Mode settings, chip status feedback and watchdog Wakeup Input WU are accessible through eight twelvebits registers Edgesensitive highvoltage input 5 V VOUT Supply from a DC/DC Converter Can be used as a wakeup source or as a logical Can deliver up to 500 mA with accuracy of 2% input polled through SPI Supplies typically the ECUs microcontroller Protection and Monitoring Functions 5 V VOUT2 Lowdrop Output Regulator Monitoring of the main supply through the V MID Can supply external loads e.g. sensors point Controlled by SPI and the state machine Monitoring of VOUT supply output with Protected against short to the car battery programmable threshold 11 V (NCV7471B) or 6.5 V (NCV7471C) V MID VOUT2 supply diagnosis through SPI and interrupt Supply from a DC/DC Converter Thermal warning and thermal shutdown protection Programmable watchdog monitoring the ECU software A Highspeed CAN/CANFD Transceiver NCV Prefix for Automotive and Other Applications ISO118982: 2016 Compliant Communication speed up to 1 Mbps Requiring Unique Site and Control Change Specification for loop delay symmetry up to 2 Mbps Requirements AECQ100 Qualified and PPAP Capable TxD dominant timeout protection These Devices are PbFree, Halogen Free/BFR Free and are RoHS Compliant Semiconductor Components Industries, LLC, 2016 1 Publication Order Number: September, 2018 Rev. 0 NCV7471B/DNCV7471B, NCV7471C 1 36 V MID RSTN INTN BOOST CFG UVN VOUT SDI FSO1 FSO2 SCK SDO FSO3 GND SMPS CSN BUCK WU VS GND SENSE VOUT VS VOUT2 VCC CAN GND VOUT2 CANH TxDC CANL RxDC TEST/GND TxDL1 LIN1 RxDL1 GND TxDL2 LIN2 SWDM RxDL2 18 19 Pin Connections Table of Contents Block Diagram .............................................................................................. 3 Pin Description .............................................................................................. 4 Application Information ....................................................................................... 5 Example Application Diagram .................................................................................. 5 External Components ......................................................................................... 6 Functional Description ........................................................................................ 7 Power Supplies .............................................................................................. 7 Communication Transceivers .................................................................................. 10 WU Local Wakeup Input ................................................................................... 14 Operating Modes ........................................................................................... 15 Watchdog ................................................................................................. 19 System Reset .............................................................................................. 21 Event Flags and Interrupt Requests ............................................................................. 22 Junction Temperature Monitoring .............................................................................. 25 FSO1/2/3 Fail-Safe Outputs ................................................................................. 25 SWDM and CFG Digital Inputs ................................................................................ 27 SPI Serial Peripheral Interface ............................................................................... 28 Absolute Maximum Ratings .................................................................................. 38 Operating Ranges ........................................................................................... 39 Electrical Characteristics ..................................................................................... 40 Power Supply .............................................................................................. 40 CAN Transceiver ........................................................................................... 43 LIN Transceivers ........................................................................................... 46 Digital Control Timing and SPI Timing .......................................................................... 48 Thermal Protection .......................................................................................... 49 Digital IO Pins ............................................................................................. 49 CFG and SWDM Pins ....................................................................................... 50 FSO Pins ................................................................................................. 50 WU Pin ................................................................................................... 50 Device Ordering information .................................................................................. 52 www.onsemi.com 2