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UM1557 Datasheet(PDF) 4 Page - STMicroelectronics

Part # UM1557
Description  The aim of this document is to give the design engineer
PDF  111 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM1557 Datasheet(HTML) 4 Page - STMicroelectronics

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Contents
UM1557
4/111
Doc ID 023521 Rev 2
8.7.2
Timeout Watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
8.7.3
Functional safety considerations through ST SPI . . . . . . . . . . . . . . . . . 97
8.7.4
Full flexibility of the output stages and supply rails . . . . . . . . . . . . . . . . 98
8.8
Hardware guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
8.8.1
Interface microcontroller/AMICO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
8.8.2
Interface HSD/AMICO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
8.8.3
Reverse battery protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
8.8.4
Pull-up/pull-down and decoupling capacitors for AMICO . . . . . . . . . . 107
Appendix A
Reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110



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