TC4428AEMF

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Introduction to TC4428AEMF

TC4428AEMF is a high-speed gate driver, part of Texas Instruments’ power management integrated circuit (PMIC) family. This integrated circuit provides efficient, low-power gate drive to N-channel MOSFET devices, allowing for higher current ratings for required applications. It optimizes gate charge and also allows for independent control and monitoring of the gate signals. Its small SOT23-6 package size is ideal for tight PCB design spaces, as well as its low operating voltage range from 4.5V to 18V.

Application Field and Working Principle

The TC4428AEMF can be used in several areas, such as automotive, home appliance, industrial, health care and office automation applications, due to its wide operating range and current ratings. The integrated circuit includes two independent N-channel MOSFET drivers as well as charge pumps suited for driving MOSFETs in both high side or low side configurations, allowing for dual-channel half bridge or full bridge power control. A wide range of applications such as DC motor control, solenoid valve control, OR-AND logic, appliance control and full bridge power switching can be controlled with the TC4428AEMF.

The TC4428AEMF works on P-Channel MOSFETs and N-channel MOSFETs configurations in any application, including low side, high side and totem pole applications. This product is designed to provide high current drain and full H-bridge capabilities up to 7A. The integrated circuit also works on a nominal operating voltage range of 4.5V to 30V, and can support gate voltages up to 25V. The internal charge pump ensures fast switching times and allows for any gate voltage source.

The integrated circuit also allows for three typical operating modes: high-side drive, low-side drive, and totem pole drive. The high-side drive is activated when a voltage is applied to the IN+ and IN- pins. The low-side drive is activated when a voltage is applied to the IN+ pin only. The totem pole drive is activated by applying a voltage to both the IN+ and IN- pins at the same time.

This integrated circuit also provides efficiency in applications with high frequency switching, and is guaranteed for up to 7A of current in pulsed operation. It also provides high transient protection by monitoring the Enable, IN+ and IN- pins up to 25V, ensuring that the gate voltage never exceeds the main supply voltage. The product is rated for a total gate charge up to 10nC and a maximum output current of 7A, allowing for a wide range of power levels to be used in applications such as motor control and solenoid valve control.

Conclusion

In conclusion, the TC4428AEMF offers a reliable, efficient and high-frequency gate driver solution suitable for a wide range of automotive, home appliance, industrial, health care and office automation applications. By combining low power consumption and full H-bridge capabilities, this integrated circuit allows for independent control and monitoring of the gate signals, providing improved transistor performance with higher current ratings. It is guaranteed for up to 7A of current in pulsed operation with a maximum output current up to 10nC, proving it to be a versatile and reliable option for PCB design.

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