MCT8317A

24V 最大電壓、5A 峰值電流無傳感器梯形控制三相 BLDC 電機驅(qū)動器; ? Three-phase BLDC motor driver with integrated sensorless motor control algorithm \n? Code-free high speed Trapezoidal Control\n? Supports up to 3 kHz (electrical frequency) \n? Very fast start-up time (2C based speed input\n? Configurable motor start-up and stop options\n? Anti-voltage surge (AVS) protection prevents DC bus voltage spike during motor deceleration\n? Variable monitoring through DACOUT\n \n? 4.5- to 20-V operating voltage (24-V abs max)\n? High output current capability: 5-A peak \n? Low MOSFET on-state resistance \n? RDS(ON) (HS + LS) at TA = 25°C : 130-mΩ \n \n? Low power sleep mode \n? 7-μA (maximum) at VVM = 12-V, TA = 25°C\n \n? Speed loop accuracy: 3% with internal clock and 1% with external clock reference\n? Supports up to 100-kHz PWM frequency for low inductance motor support\n? Does not require external current sense resistor\n? Built-in 3.3-V ±5%, 20-mA LDO regulator\n? Spread spectrum and slew rate for EMI mitigation\n? Suite of Integrated protection features \n? Supply under voltage lockout (UVLO)\n? Motor lock detection (5 different types)\n? Over current protection (OCP)\n? Over temperature warning and shutdown (OTW/OTS)\n? Fault condition indication pin (nFAULT)\n? Optional fault diagnostics over I2C interface;

The MCT8317A provides a single-chip, code-free sensorless trapezoidal solution for customers requiring high speed operation (up to 3 kHz electrical) or very fast start-up time (< 50 ms) for 12-V brushless-DC motors up to 5-A peak current. The MCT8317A integrates three ?-bridges with 24-V absolute maximum capability and a very low RDS(ON) of 130 mΩ (high-side + low-side FETs). MCT8317A also features an LDO that generates a 3.3-V voltage rail and can source up to 20 mA to power external circuits.\n\nSensorless trapezoidal control is highly configurable through register settings ranging from motor start-up behavior to closed loop operation. Register settings for MCT8317A can be set in non-volatile EEPROM, which allows the device to operate stand-alone once it has been configured. The device receives a speed command through a PWM input, analog voltage, variable frequency square wave or I2C command. There are a large number of protection features integrated into the MCT8317A, intended to protect the device, motor, and system against fault events.\n\nDocumentation for reference:Refer to theMCT8317A EVM GUI

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