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SCM1271MF датащи(PDF) 12 Page - Sanken electric |
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SCM1271MF датащи(HTML) 12 Page - Sanken electric |
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12 / 53 page ![]() SCM1270MF Series SCM1270MF-DSE Rev.1.4 SANKEN ELECTRIC CO., LTD. 12 Aug. 9, 2018 http://www.sanken-ele.co.jp/en © SANKEN ELECTRIC CO., LTD. 2017 6. Truth Table Table 6-1 is a truth table that provides the logic level definitions of operation modes. In the case where HINx and LINx signals in each phase are high at the same time, the simultaneous on-state prevention sets both the high- and low-side transistors off. After the IC recovers from a UVLO_VCC condition, the high- and low-side transistors resume switching, according to the input logic levels of the HINx and LINx signals (level-triggered). After the IC recovers from a UVLO_VB condition, the high-side transistors resume switching at the next rising edge of an HINx signal (edge-triggered). Table 6-1. Truth Table for Operation Modes Mode HINx LINx High-side Transistor Low-side Transistor Normal Operation L L OFF OFF H L ON OFF L H OFF ON H H OFF OFF Shutdown Signal Input FO1/FO3/SD = L L L OFF OFF H L OFF OFF L H OFF OFF H H OFF OFF Undervoltage Lockout for High-side Power Supply (UVLO_VB) L L OFF OFF H L OFF OFF L H OFF ON H H OFF OFF Undervoltage Lockout for Low-side Power Supply (UVLO_VCC) L L OFF OFF H L OFF OFF L H OFF OFF H H OFF OFF Overcurrent Protection (OCP) L L OFF OFF H L OFF OFF L H OFF OFF H H OFF OFF |
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