A3930KJPTR-T

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A3930KJPTR-T is a highly integrated dual low-side gate driver, which is specifically designed for use in brushless DC motor. It includes an integrated flip-flop, a differential amplifier, an extra comparator, an adjustable current sensing and an isolated gate driver. It also integrates an under-voltage Lockout (UVLO) and an over-voltage protection circuit to avoid any potential issues in the system.

Application Field

A3930KJPTR-T provides a complete solution for driving the brushless DC motors in industrial, automotive, consumer and consumer electronic applications. It is especially suitable for applications that requires low power consumption, low voltage operation and high noise suppression.

It can be used to drive the motor loads directly in robotics, motion control, drives, automation equipment and other industrial equipment. It can also be used in smart homes and consumer electronic products, such as HVAC systems, smart appliances, toys and games.

Working Principle

A3930KJPTR-T consists of a low-side gate driver, which includes an integrated flip-flop, a differential amplifier, an extra comparator for over-voltage protection (OVP) and an adjustable current sensing block. The flip-flop is used to control the dual outputs of the driver and provide a logic level high and low signal to turn the FET transistors on or off. The differential amplifier facilitates the use of the low-side FET gate driver in the application. The integrated comparator is used to detect the over-voltage. The adjustable current sensing block senses the motor currents continuously to protects them and adjusts the current limit settings.

The under-voltage lockout (UVLO) circuit is used to provides protections to the system by keeping the driver in an inactive state when the input voltage is below the threshold. The OVP circuit helps to protect the system by keeping both FETs in a low-impedance state when the voltage across the output of the driver exceeds the threshold.

Conclusion

A3930KJPTR-T is a highly integrated dual low-side gate driver that is specifically designed for driving either brushless DC motors directly or for auxiliary control of brushed motors in a wide variety of application areas. The driver includes features such as an integrated flip-flop, a differential amplifier, an extra comparator for over-voltage protection, an adjustable current sensing block, an under-voltage lockout circuit and an over-voltage protection circuit.

These features make A3930KJPTR-T an ideal choice for applications requiring low-power consumption, low-voltage operation and high-noise suppression. It offers a complete solution for driving brushless DC motors in a wide array of areas, including robotics, motion control, drives and automation equipment, smart homes and consumer electronic products.

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