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TA84005F Datasheet(PDF) 7 Page - Toshiba Semiconductor |
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TA84005F Datasheet(HTML) 7 Page - Toshiba Semiconductor |
7 / 21 page TA84005F/FG 2004-08-10 7 Functions Input Output IN-P IN-N Upper Power Transistor Lower Power Transistor High High ON OFF High Low High ON ON Prohibit mode (Note 4) High Low OFF OFF High impedance Low Low OFF ON Low Connecting the TB6548F/FG (or TB6537P/PG/F/FG) to the TA84005F/FG allows electric motors to be controlled by PWM. Note 4: In Prohibit Mode, the output power transistor goes into vertical ON mode and through current may damage the circuit. Do not use the TA84005F/FG in this mode. This mode is not actuated when the TA84005F/FG is connected to the TB6548F/FG or TB6537P/PG/F/FG, but can be triggered by input noise during standalone testing. <Schematic> <Lower PWM> Connecting the TA84005F/FG to the TB6537P/PG/F/FG controls the lower PWM. At chopping ON, the diagonally output power transistors are ON. At chopping OFF, the lower transistor is OFF, regenerating the motor current via the upper diode (incorporating the Pch-MOS). TB6548F/FG (TB6537P/PG /F/FG) OUT-P OUT-N Low active High active IN-P IN-N VM OUT VM VOUT ON Pch-MOS OFF <Coil current route> When chopping is ON When chopping is OFF OFF |
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