Wired Transceivers & Modems | NCV7471

System Basis Chip with Dual LIN, HS CAN and 500 mA Boost-Buck DC-DC

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Overview

NCV7471(A) is a System Basis Chip (SBC) integrating functions typically found in automotive Electronic Control Units (ECUs) in the body domain. NCV7471 provides and monitors the low-voltage power supplies for the application microcontroller and other loads, monitors the application software via a watchdog and includes high-speed CAN and LIN transceivers allowing the ECU to host multiple communication nodes or to act as a gateway unit. The on-chip state controller ensures safe power-up sequence and supports low-power modes with a configurable set of features including wakeup from the communication buses or by a local digital signal WU. The status of several NCV7471(A) internal blocks can be read by the microcontroller through the serial peripheral interface or can be used to generate an interrupt request.

  • Automotive Body Control Modules

  • Automobiles

  • Control Logic
    - Ensures safe powerup sequence and the correct reaction to different supply conditions
    - Controls mode transitions including the power management and wakeup treatment bus wakeups, local wakeups (via WU pin) and cyclic wakeups (through the onchip timer)
    - Generates reset and interrupt requests
  • Serial Peripheral Interface
    - Operates with 16bit frames
    - Ensures communication with the ECUs microcontroller unit
    - Mode settings, chip status feedback and watchdog are accessible through eight twelvebits registers
  • 5 V VOUT Supply from a DC/DC Converter
    - Can deliver up to 500 mA with accuracy of 2%
    - Supplies typically the ECUs microcontroller
    - Suitable for start stop systems with battery voltage as low as 2.5V
  • 5 V VOUT2 Lowdrop Output Regulator
    - Can supply external loads e.g. sensors
    - Controlled by SPI and the state machine
    - Protected against short to the car battery
  • A Highspeed CAN Transceiver
    - ISO11898 compliant
    - TxD dominant timeout protection
  • Two LIN Transceivers
    - LIN2.1 and J2602 compliant
    - TxD dominant timeout protection
  • Wakeup Input WU
    - Edgesensitive highvoltage input
    - Can be used as a wakeup source or as a logical input polled through SPI
  • Protection and Monitoring Functions
    - Monitoring of the main supply through the V_MID point
    - Monitoring of VOUT supply output with
    programmable threshold
    - VOUT2 supply diagnosis through SPI and interrupt
    - Thermal warning and thermal shutdown protection
    - Programmable watchdog monitoring the ECU software

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NCV7471ADQ5R2G

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Last Shipments

CAD Model

Pb

A

H

P

SSOP-36 EP

940AB

2

260

REEL

1500

N

CAN

LIN

1 Mb/s

20 kbaud

2

2

2.5

28

-

-

-

Price N/A

More Details

NCV7471DQ5R2G

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Last Shipments

CAD Model

Pb

A

H

P

SSOP-36 EP

940AB

2

260

REEL

1500

N

CAN

LIN

1 Mb/s

20 kbaud

2

2

2.5

28

-

-

-

Price N/A

More Details

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Reliability Data

Die Related Summary Data

Device: NCV7471ADQ5R2G

Equivalent to wafer fab process: CMOS SUB

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

CMOS SUB

2

920154574

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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