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L9689E Fiches technique(PDF) 2 Page - STMicroelectronics

No de pièce L9689E
Description  Automotive 8 channels chip for advanced airbag applications
PDF  19 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9689E Fiches technique(HTML) 2 Page - STMicroelectronics

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1
Block diagram and pin description
1.1
Block diagram
The L9689E IC is an application specific standard component for airbag system chip. Its main functions include
deployment drivers (supporting both squib and low-energy actuator loads), remote sensor interfaces (supporting
PSI-5 satellite sensors), diagnostics, deployment arming through remote sensor SPI communication snooping,
hall-effect/switch sensor interfaces and general purpose output low-side drivers. A simplified block diagram for
this IC is shown in the Figure 1.
Figure 1. Block diagram
L9689E
Block diagram and pin description
DB4807 - Rev 2
page 2/19



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