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UCD3138ARMHT 数据表(PDF) 44 Page - Texas Instruments |
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UCD3138ARMHT 数据表(HTML) 44 Page - Texas Instruments |
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44 / 83 page  FAULT - CBC FAULT - AB FAULT -A DCOMP – 4X EXT GPIO– 4X ACOMP – 7X FAULT -B FAULT MODULE FAULT MODULE FAULT MODULE CYCLE BY CYCLE AB FLAG AB FLAG A FLAG B FLAG FAULT MUX ALL_FAULT_EN DPWM _EN DPWM CBC_FAULT_EN CBC_PWM _AB_EN FAULT MODULE ANALOG PCM Bit 20 in DPWMCTRL0 Bit30 in DPWMFLTCTRL Bit 31 in DPWMFLTCTRL Bit 0 in DPWMCTRL0 DISABLE PWM A AND B DISABLE PWM A AND B DISABLE PWM A ONLY DISABLE PWM B ONLY UCD3138A SLUSC66B – MARCH 2015 – REVISED MAY 2015 www.ti.com • Cycle Adjustment (Current and flux balancing) • Global Period • Light Load (Burst Mode) • Analog Peak Current Mode 6.9.2 Fault Multiplexer In order to allow a flexible way of mapping several fault triggering sources to all the DPWMs channels, the UCD3138A provides an extensive array of multiplexers that are united under the name Fault Mux module. The Fault Mux Module supports flexible mapping between fault sources and fault response mechanism inside each DPWM module. • Many fault sources can be mapped to a single fault response mechanism. For instance an analog comparator in charge of over voltage protection, a digital comparator in charge of over current protection and an external digital fault pin can be all mapped to a fault-A signal connected to a single FAULT MODULE and shut down DPWM1-A. • A single fault source can be mapped to many fault response mechanisms inside many DPWM modules. For instance an analog comparator in charge of over current protection can be mapped to DPWM-0 through DPWM-3 by way of several fault modules. 44 Detailed Description Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: UCD3138A |
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