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Bosch Semiconductors

CF190

PSI5 interface for digital satellite sensors

Application & Technical Summary

CF190

CF190 provides two PSI5 (V1.3) channels for connecting airbag crash sensors to the system's microcontroller.

Each channel can be set to point-to-point mode (one sensor) or bus mode (max. four sensors).

CF190 provides power to satellite sensors and serves as digital communication interface between microcontroller and sensor.

Product benefits

  • two separate PSI5 (V1.3) channels
  • Supports three SPI protocols
  • Flexible use in 3.3V and 5V systems
  • Continuous monitoring of voltages and temperature

Up to 4 sensors per channel

in PSI5 bus mode

Technical Features

Type
PSI5 receiver with 2 channels
Package
LQFP32
Features

  • Max. 8 sensors
  • Bi-directional communication
  • Bosch AB, EM and Open SPI protocol
  • Integrated monitoring of voltages and overtemperature
  • Integrated diagnosis

Peripheral sensor interfaces
2 x PSI5 (V1.3)
Interfaces
SPI ( 3.3V or 5V)
VDD typ. [V]
3.3 V or 5 V
VVAS typ. [V]
6.35 – 11 V
VSYNC typ. [V]
(VAS + 4.6 V)…35 V
VER typ. [V]
(VAS + 3.5 V) – 35 V
Tj min [°C]
-40°C
Tj max [°C]
150°C

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