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《Microelectronics》 2016-01
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Design of a 12 V 1 A Fully Integrated Brushless DC Motor Driver

DENG Sha;DIAO Shengxi;LIN Fujiang;Micro-,Nano-Electronic System Integration Center,Univ.of Science and Technology of China;  
A fully integrated brushless DC(BLDC)motor driver was designed.LDMOS gate driver circuit and LDMOS transistors were included in this circuit.Bootstrap mode was applied to drive high-side LDMOS transistors.To avoid short circuit in one bridge arm,a dead-time and none-overlap module was adopted.LDMOS transistors and CMOS transistors were integrated in one chip so as to realize circuit miniaturization.Its taped out in CSMC 0.25μm BCD process.50 ℃-120 ℃ hysteretic over-temperature protection and 1Aload current were obtained at dual power supplies of 12V/5V.The size of this chip was 4mm×2.3mm.
【CateGory Index】: TM33
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