CC6420 Datasheet | CrossChip

DATASHEET-CC6420-EN-rev3.2 cross MOTOR series Low Noise, High Efficiency, 5V/12V 450m A Single Coil Sine Wave Current Motor Driver Features - Built-in high sensitive hall sensor - High efficiency, Zero Current Switch (ZCS) and Zero magnet Switch (ZBS) - Low noise, using SVPWM technology to realize sine wave control of the motor, reducing electromagnetic noise - PWM speed control with minimal speed setting - Strong driving capability, RDSON = 1.5Ω, High output current, up to 450m A - Wide operating voltage, 3.5V to 18V - Rotation Detect (RD) and Frequency Generator (FG) are optional - Protection: Reverse voltage, Thermal Protection, LRP (Lock Rotation Protection), Current Limit Protection - AGC control - Intelligent soft start, reduce the motor starting current, reduce the impact on the power supply - The rotational speed curve is configurable - ESD (HBM) 6k V APPLICATION - Single Coil Brushless DC Motor - Single Coil Brushless DC Fan GENERAL DESCRIPTION CC6420 is a one-chip solution for single-coil brushless DC motor/fan with PWM speed control. The chip is designed and manufactured using an innovative advanced high-voltage Bi CMOS process that is optimized for Hall sensors and motor drives. It integrates a driver power tube, a voltage regulator module, a high-precision Hall sensor, a chopper offset cancellation module, a Hall signal linear amplification and modulation module, and a digital logic control module. In terms of motor control, it has a soft-start function, which can eliminate the spike current when the motor starts. The chip es with a sine wave modulation driver module and a built-in automatic gain modulation module. After stabilizing the gain, the motor enters the sine wave modulation state, which can improve the running efficiency of the fan and reduce the noise. In terms of speed control, the motor supports PWM modulation, minimum speed configuration, speed profile configuration and direction of rotation control to meet different speed...