The TIDA-00772 is an 18-ARMSdrive fora three-phase brushless DC(BLDC) motor in power tools. The device operates off of a 5-cell Li-Ion battery with a voltage of up to 21 V. The design is a 45-mm × 50-mm compact drive that implements sensor-based trapezoidal control. The design uses a discrete, compact MOSFET-based three-phase inverter that delivers an 18 ARMS continuous (60-A peak for 1 s) winding current without external cooling or heat sink. The slew-rate control and triple charge pump of the gate drive ensures maximum inverter efficiency and optimum EMI performance.
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