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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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L99LDLH32 데이터시트(PDF) 37 Page - STMicroelectronics |
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L99LDLH32 데이터시트(HTML) 37 Page - STMicroelectronics |
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37 / 142 page  DS12879 Rev 6 37/142 L99LDLH32 Functional description 141 Figure 11. Short to ground fault management 5.3.9 Channel output – Open load detection The L99LDLH32 features the open load (no current regulation) detection, implemented both in Bus mode and Fail Safe / Stand Alone mode as well. The open load detection is masked when the O/LED supply voltage is below a power good threshold (VPG_TH_VPRE_REG), which is configurable in the range of [VPG_TH_VPRE_REG_min ÷ VPG_TH_VPRE_REG_max] with a step equal to VPG_TH_VPRE_REG_step. There is one status bit (PG_NOT_VPRE_REG - see RAM memory map, Chapter 7) for the VPRE_REG group to indicate the selected voltage threshold to enable open load diagnostic is reached. If this bit is equal to “0”, the desired voltage threshold is not reached and the open load diagnostic is disabled; otherwise, the threshold is reached and the diagnostic enabled. |
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