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MCT8316Z датащи(PDF) 21 Page - Texas Instruments |
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MCT8316Z датащи(HTML) 21 Page - Texas Instruments |
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21 / 100 page ![]() The half-bridge output states are managed by the HPA, HNA, HPB, HNB, HPC and HNC pins in analog mode and HPA, HPB, HPC in digital mode which are used as state logic inputs. The state inputs are the position feedback of the BLDC motor. The 1x PWM mode usually operates with synchronous rectification (low-side MOSFET recirculation); however, the mode can be configured to use asynchronous rectification (MOSFET body diode freewheeling) as shown below Table 8-2. PWM_MODE Configuration MODE Type MODE Pin (Hardware Variant) Hall Configuration Modulation ASR and AAR Mode Mode 1 Connected to AGND Analog Hall Input Asynchronous ASR and AAR Disabled Mode 2 Connected to AGND with RMODE1 Digital Hall Input Asynchronous ASR and AAR Disabled Mode 3 Connected to AGND with RMODE2 Analog Hall Input Synchronous ASR and AAR Disabled Mode 4 Hi-Z Digital Hall Input Synchronous ASR and AAR Disabled Mode 5 Connected to AVDD with RMODE2 Analog Hall Input Synchronous ASR and AAR Enabled Mode 6 Connected to AVDD with RMODE1 Digital Hall Input Synchronous ASR and AAR Enabled Mode 7 Connected to AVDD Note Texas Instruments does not recommend changing the MODE pin or PWM_MODE register during operation of the power MOSFETs. Set PWM to a low level before changing the MODE pin or PWM_MODE register. 8.3.2.1 Analog Hall Input Configuration Figure 8-3 shows the connection of Analog Hall inputs to the driver. Analog hall elements are fed to the hall comparators, which zero crossing is used to generate the commutation logic. www.ti.com MCT8316Z-Q1 SLVSGO3 – DECEMBER 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 21 Product Folder Links: MCT8316Z-Q1 |
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