L9678P datasheet(34/203 Pages) STMICROELECTRONICS

поискавой системы для электроныых деталей

L9678P датащи(PDF) 34 Page - STMicroelectronics

номер детали	L9678P

подробное описание детали	Automotive user configurable airbag IC

PDF	203 Pages

Scroll/Zoom	100%

производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

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34 / 203 page

Start-up power control

L9678P, L9678P-S

34/203

DocID029274 Rev 3

Figure 17. VSF control logic

4.4

Reset functions

The device provides reset logic to safely control system operation in the event of internal

ECU failures. Several internal reset signals are generated depending on the type of failure

detected. In the following figure, the voltage monitoring diagram is shown. BG_ERR reports

error on the bandgap reference voltage, VREG_ERR reports errors on any of the internal

regulators (VINT3V3 for 3.3 V analog circuitry, CVDD for 3.3 V digital circuitry),

VDD3V3_ERR and VDD5_ERR report errors on VDD3V3 and VDD5 regulators,

respectively.

Figure 18. Internal voltage errors

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