L9779WD-SPI datasheet(72/141 Pages) STMICROELECTRONICS

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L9779WD-SPI 데이터시트(PDF) 72 Page - STMicroelectronics

부품명	L9779WD-SPI

상세설명	Smart reset function

PDF	141 Pages

Scroll/Zoom	100%

제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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72 / 141 page

Functional description

L9779WD-SPI

72/141

DocID027721 Rev 2

The Faults "DETECTION_RUNNING" & " OPEN LOAD" are latched during the during rise &

fall edge of low-side driver command, if the fault disappeared during these phases the fault

condition is no latched:

–

The FAULT DETECTION RUNNING is no latched, the fault comes back to 0 if the

current becomes higher than open load threshold, before the switch off of low-side

driver.

–

The FAULT OPEN LAOD is no latched, the fault comes back to 0 if the current

becomes higher than open load threshold, before the switch off of low-side driver.

A diagnostic read will clear the “fault detection running” flag. Anyway the diagnostic will

restart.

Figure 48. Stepper motor driver “off” diagnosis time diagram

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