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DRV8353FSRTAR Datasheet(PDF) 32 Page - Texas Instruments |
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DRV8353FSRTAR Datasheet(HTML) 32 Page - Texas Instruments |
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32 / 97 page  The INHC input controls the direction through the 6-step commutation table which is used to change the direction of the motor when hall sensors are directly controlling the INLA, INHB, and INLB state inputs. Tie the INHC pin low if this feature is not required. The INLC input brakes the motor by turning off all high-side MOSFETs and turning on all low-side MOSFETs when it is pulled low. This brake is independent of the states of the other input pins. Tie the INLC pin high if this feature is not required. Table 8-3. Synchronous 1x PWM Mode LOGIC AND HALL INPUTS GATE-DRIVE OUTPUTS STATE INHC = 0 INHC = 1 PHASE A PHASE B PHASE C DESCRIPTION INLA INHB INLB INLA INHB INLB GHA GLA GHB GLB GHC GLC Stop 0 0 0 0 0 0 L L L L L L Stop Align 1 1 1 1 1 1 PWM !PWM L H L H Align 1 1 1 0 0 0 1 L L PWM !PWM L H B → C 2 1 0 0 0 1 1 PWM !PWM L L L H A → C 3 1 0 1 0 1 0 PWM !PWM L H L L A → B 4 0 0 1 1 1 0 L L L H PWM !PWM C → B 5 0 1 1 1 0 0 L H L L PWM !PWM C → A 6 0 1 0 1 0 1 L H PWM !PWM L L B → A Table 8-4. Asynchronous 1x PWM Mode 1PWM_COM = 1 (SPI Only) LOGIC AND HALL INPUTS GATE-DRIVE OUTPUTS STATE INHC = 0 INHC = 1 PHASE A PHASE B PHASE C DESCRIPTION INLA INHB INLB INLA INHB INLB GHA GLA GHB GLB GHC GLC Stop 0 0 0 0 0 0 L L L L L L Stop Align 1 1 1 1 1 1 PWM L L H L H Align 1 1 1 0 0 0 1 L L PWM L L H B → C 2 1 0 0 0 1 1 PWM L L L L H A → C 3 1 0 1 0 1 0 PWM L L H L L A → B 4 0 0 1 1 1 0 L L L H PWM L C → B 5 0 1 1 1 0 0 L H L L PWM L C → A 6 0 1 0 1 0 1 L H PWM L L L B → A Figure 8-9 and Figure 8-10 show the different possible configurations in 1x PWM mode. INHA INLA INHB INLB INHC INLC PWM STATE0 STATE1 STATE2 DIR nBRAKE MCU_PWM MCU_GPIO MCU_GPIO MCU_GPIO MCU_GPIO MCU_GPIO BLDC Motor Figure 8-9. 1x PWM—Simple Controller DRV8350F, DRV8353F, DRV8350RF, DRV8353RF SLVSFV1 – SEPTEMBER 2020 www.ti.com 32 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: DRV8350F DRV8353F DRV8350RF DRV8353RF |
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