Driver assistance systems

Bosch system ICs for driver assistance systems support two popular applications: Ultrasonic sensors for park distance control and radar sensors for automated cruise control.

Content

 
 

Ultrasonic sensor system ICs

Product Details Package
  • CA270
    for up to 2.5m applications

  • Application


     

    Inputs
     
     

    Outputs

    Transceiver IC for ultrasonic parking aid sensors

     

    Reflected signal from ultrasonic transducer


     

    Predriver for ultrasonic transducer

  • QFN 5x5 (MLF28)
  • VDD typ. [V]

    Interfaces
     

    VPAxmax

    IPAx

    fsend

    Tmin [°C]

    Tmax [°C]

    7...18

    Single-wire, bi-directional interface for ECU communication and end-of-line adjustment

    25 V

    200...500 mA
    (with external PNP)

    -40

    100

    Features
    • 1-wire I/O interface
    • Modes: Send an receive, receive only
    • Configurable transducer current source
    • Configurable reference ultrasonic curce
    • Continuous monitoring of transducer driver current
    • Offset cancellation aftre power on
    • Noise level estimation and compensation
    • Storage capability by PROM and RAM
    • Status information queries
Product Details Package
  • CA271
    for up to 4.0m applications

  • Application


     

    Inputs
     
     

    Outputs

    Transceiver IC for ultrasonic parking aid sensors

     

    Reflected signal from ultrasonic transducer


     

    Predriver for ultrasonic transducer

  • QFN 5x5 (MLF28)
  • VDD typ. [V]

    Interfaces
     

    VPAxmax

    IPAx

    fsend

    Tmin [°C]

    Tmax [°C]

    7...18

    Single-wire, bi-directional interface for ECU communication and end-of-line adjustment

    25 V

    200...500 mA
    (with external PNP)

    -40

    100

    Features
    • 1-wire I/O interface
    • Modes: Send an receive, receive only
    • Configurable transducer current source
    • Configurable reference ultrasonic curce
    • Continuous monitoring of transducer driver current
    • Offset cancellation aftre power on
    • Noise level estimation and compensation
    • Storage capability by PROM and RAM
    • Status information queries

Radar system ICs

Product Details Package
  • CS520

  • Application
     

    Supply voltages


     
     
     
     
     
     
     
     

    Outputs
     
     

    System basis IC for radar ECUs
     

    3.3V / 1.8A SMPS for microcontroller and bus transceivers

    3.3V / 1.8A low noise LR for MMIC analog radar components

    3.3V / 0.9A LR for MMIC digital radar components

    5V / 100mA switch for partial network transceivers


     

    Reset

    Battery voltage monitoring switch

    Battery voltage drop detection

  • TQFP64_ePad
  • VDD typ. [V]

    Interfaces

    Tmin [°C]

    Tmax [°C]

    14 / 28

    SPI, CAN FD

    -40

    150

    Features
    • Designed for passenger car and commercial vehicle applications
    • Suitable for systems up to ASIL C
    • Voltage monitoring and overcurrent protection for all regulators
    • SPI interface for control and diagnostics
    • CAN FD driver (up to 5 Mbit/s)
 
 
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