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UM0580 Datasheet(PDF) 19 Page - STMicroelectronics |
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UM0580 Datasheet(HTML) 19 Page - STMicroelectronics |
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19 / 24 page  UM0580 Board schematics 19/24 The brake signal is active high and 3.3-/5-V-compatible. Warning: This feature is mandatory in applications that require the motor to operate in the flux-weakening region. In these conditions, the back-EMF generated by the rotor spinning is greater than the bus voltage and the brake feature prevents the motor from acting as a generator destructively charging the bus capacitance. Figure 12. Brake circuit Table 3. Truth table HINx Brake LVGx HVGx Load x x 0 x 0 0 Tri-state xx 1 1 1 0 brake 00 10 1 0 Normal operation 01 10 0 0 10 10 0 0 11 10 0 1 AM01268v1 LIN x SD |
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