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SIM689XM 데이터시트(PDF) 14 Page - Sanken electric |
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SIM689XM 데이터시트(HTML) 14 Page - Sanken electric |
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14 / 55 page ![]() SIM689xM Series SIM689xM-DSE Rev.3.4 SANKEN ELECTRIC CO., LTD. 14 Mar. 05, 2024 https://www.sanken-ele.co.jp/en © SANKEN ELECTRIC CO., LTD. 2021 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 pin signals in each phase are high at the same time, both the high- and low-side transistors become on (simultaneous on-state). Therefore, HINx and LINx signals, the input signals for the HINx and LINx pins, require dead time setting so that such a simultaneous on-state event can be avoided. 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 ON ON Undervoltage Lockout for High- side Power Supply (UVLO_VB) L L OFF OFF H L OFF OFF L H OFF ON H H OFF ON 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 ON OFF L H OFF OFF H H ON OFF Thermal Shutdown (TSD) L L OFF OFF H L ON OFF L H OFF OFF H H ON OFF |
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