ChipSourceTek-CST6307 is a driver chip designed for brushed DC motors with outstanding performance and multiple protection features. The chip is capable of operating in a voltage range of 6.5V to 25V and provides peak current up to 3.6A. A current modulation circuit is integrated into the design to set the operating current level through the VREF pin and the external sensing resistor ISEN. Users can connect and control the controller through a simple PWM interface.

    The ChipSourceTek-CST6307 can be put into low-power sleep mode to save energy when the system does not need to drive a motor. In addition, the chip provides an internal shutdown function for undervoltage locking and overheat protection, ensuring safe operation of the device in abnormal conditions.

    The ChipSourceTek-CST6307 comes in an e-SOP8 package with a heat sink and is suitable for a variety of application scenarios such as high-current toys, robots, printers, POS machines, home appliances, and other small machines. The chip can control the motor bidirectionally, using pulse width modulation (PWM) technology to adjust the motor speed.

1. Main features

    **1.1. High current drive capability: **ChipSourceTek-CST6307 delivers up to 3.6A peak current for high power applications.

**1.2. Wide operating voltage range: ** Support 6.5V to 25V operating voltage, making it suitable for a variety of power supply environments.

**1.3. Low on-resistance: ** The total on-resistance of the high side and low side MOSFETs is 560 Mω, which helps to reduce power consumption and heating.

**1.4 PWM control: ** Accurate control of motor speed can be achieved through simple PWM signal input.

**1.5. Automatic fault recovery: ** In case of failure, the chip will automatically shut down and try to recover, improving the reliability of the system.

**1.6. Low power mode: ** When the motor is not needed to drive, it can enter the low power sleep mode to reduce energy consumption.

2. Working principle

    ChipSourceTek-CST6307 provides precise control of the motor through an internal current modulation circuit. The circuit determines the operating current based on the voltage of the VREF pin and the external sensing resistance connected on the ISEN pin. By adjusting these parameters, the user can set the desired current value.

    In PWM control mode, ChipSourceTek-CST6307 controls the output current by adjusting the pulse width of the input signal, so as to adjust the motor speed. If both logical inputs are set to low, the motor driver will enter low-power sleep mode.

3. Application field

    Due to its high performance and versatility, ChipSourceTek-CST6307 is ideal for a variety of applications that require precise control of motors, such as:

    **3.1. High-current toys: ** Provide enough power to drive the motor in the toy.

    *3.2. Robots: ** Moving parts used to control robots.

    **3.3. Printer: ** Ensure accurate movement of the print head.

    **3.4. POS machines: ** Control mechanical components in point-of-sale terminals.

   **3.5. Household appliances: ** such as fans, washing machines, etc., provide reliable motor drive.

4. Comparison with other products

    Compared to other products on the market, such as ALLEGRO's A4950 and TI's DRV8870, the ChipSourceTek-CST6307 offers significant advantages in terms of current drive capability and protection. For example, it delivers higher peak currents (3.6A versus 3A on the A4950) and integrates more comprehensive protection mechanisms, including UVLO and overheat protection.

5. Conclusion

    The ChipSourceTek-CST6307 is a powerful and flexible motor driver chip for a wide range of application scenarios. Its high current output, wide voltage range, low on-resistance, and comprehensive protection features make it ideal for many high-performance motor control systems. Whether in toys, robots or home appliances, ChipSourceTek-CST6307 provides efficient and stable drive solutions.