The A4960 is a three-phase, sensorless brushless DC (BLDC) motor controller that can be used with an external N-channel power MOSFET specifically for automotive applications.
The motor is driven by a blocking commutation (trapezoidal commutation), which does not require a separate position sensor and can be determined by the monitoring of the back EMF of the motor. The programmable motor start design allows the A4960 to be adjusted for a wide range of motor and load combinations.
External bootstrap capacitors are used to provide the battery supply voltage described above required by the N-channel MOSFET. The automatic internal bootstrap load management design ensures that the bootstrap capacitor always provides sufficient power for the safe operation of the power MOSFETs. Integrated crossover control and adjustable no-inductance time keep the power MOSFET free from breakdown.
Integrated diagnostics indicate undervoltage, overtemperature, and power bridging faults, and can be configured to protect the power MOSFET in most short-circuit situations. Detailed diagnostics are available in the form of serial data words.
The A4960 is available in a 32-pin LQFP package (suffix JP) with an exposed spacer for enhanced heat dissipation. They are all lead-free and 100% matte tin plated (suffix –T).
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液压泵
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燃油泵
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尿素泵
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扇风机风扇
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3 相 BLDC 无传感器启动与换相
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用于 N 通道 MOSFET 的栅极驱动
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集成 PWM 电流限制
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7 至 50 V 电源电压运行范围
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可与 3.3 V 及 5 V 逻辑器件兼容
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通过可调无感时间进行交叉传导保护
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电荷泵供低电源电压运行
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全面诊断输出
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低电流休眠模式