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AN2785 Datasheet(PDF) 22 Page - STMicroelectronics |
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AN2785 Datasheet(HTML) 22 Page - STMicroelectronics |
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22 / 51 page  Application examples AN2785 22/51 Doc ID 14785 Rev 1 Figure 15. L6393 application circuit for brush DC motor controller (current mode) +5V +5V +5V +12 ÷ 600V +12V +12V Over Current Disable Time Dead Time Setting Dead Time Setting Vth +12V SD VCC CP- CP+ SD GND VBOOT HVG OUT LVG DT CPOUT L6393 VCC CP- CP+ SD GND VBOOT HVG OUT LVG DT CPOUT L6393 PHASE BRAKE PHASE BRAKE PHASE BRAKE SD HVG LVG PHASE BRAKE SD HVG LVG + _ Vth Torque Input with minimum threshold limiter +5V PWM Current Control OFF Time COMPARATOR +12V + _ +5V COMPARATOR +5V Logic + Drivers BRAKE PHASE PHASE Signal Inverter Logic + Drivers Full Bridge Power Stage Motor Load Vbus Torque Input with minimum threshold limiter EQUIVALENT CIRCUIT USING L6393 DRIIVERS SD SD DIRECTION DIRECTION |
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