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Bosch Semiconductors

CY141

Pre-regulator for 24V systems and main relay substitute

Application & Technical Summary

CY141

In connection with external MOSFET high-side switches, CY141 acts as electronic main relay substitute. In the case of a battery breakdown, a switching regulator delivers its specified output voltage.

CY141 is designed for continuously supplied systems and is qualified for battery voltages up to 42V.

Product benefits

  • Gate control for 5 external main relay MOSFET transistors, monitoring and diagnosis for the main relay paths
  • Step up /step down switching regulator
  • After-run control and emergency shut down, programmable via SPI interface

Flexible application

Main relay control and switching regulator can be used independently.

Technical Features

Type
Pre-regulator for 24 V boardnet Main relay substitute
Package
PSO36
Features

  • Adjustable step-up / step-down regulator
  • Short circuit monitoring

Output voltages
5.5 – 14 V
Interfaces
SPI, 16-bit (5V)
Control outputs

  • 5 x gate control for ext. main relay switches
  • 1 x main relay

VDD typ. [V]
24 - 42
Tj min [°C]
-40°C
Tj max [°C]
150°C

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