TC4428DCOA

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The TC4428DCOA is a product of Microchip¹ that is an advanced Gate driver with an integrated bias voltage regulator. This chip includes a driver input, bootstrap, fault indicator, crossover current protection and a wide array of features. The TC4428DCOA is a CMOS power integrated circuit (IC) developed to drive multiple MOSFETs connected in parallel. It is intended to be used in portable, automotive, industrial and consumer applications.

The main application field of the TC4428DCOA is to provide a high side and low side gate driver for different kinds of MOSFETs. It can be used for DC-DC converters, LED drivers, motor control and automotive powertrain applications. Its MOSFETs can carry currents up to 100A, and the part is able to withstand an operating temperature between -40°C and 150°C.

This IC offers a wide range of features. It supports up to 6nF of up-charging capacitance. Its low side driver enables a \'crowbar\' protection when an over-current fault occurs. It also contains a logic-controlled on/off power switch for a fixed VCC voltage. The output voltage range is internally set from 5.0V to 12.0V.

The TC4428DCOA contains several safety mechanisms, including over temperature protection and undervoltage lockouts. The over temperature protection is optimized for automotive usage, and it shuts down the chip when the temperature exceeds the set temperature limit. The under-voltage lockout helps prevent a voltage drop that could result in damage to the IC.

The TC4428DCOA is a monolithic device that supports a single Vcc voltage. It can be used as a single-channel driver or in a dual-channel configuration. It supports up to 24V Vcc inputs and can drive up to 100A of gate current. It features a typical output voltage of 100% and up to 60V Vfb. It contains a low-noise bootstrap input, fault indicator, crossover current protection and logic-controlled on/off power switch. The device is programmable via dedicated pins.

The TC4428DCOA features a robust gate driver that complies with AEC-Q100² standards, and can also be used in an adjustable gain configuration. The gate driver has two internal control modules - a bias voltage regulator and a VDS sense unit. The bias voltage regulator generates the necessary gate voltage for the FET gate drive, and the VDS sense unit senses the drain-source voltage in order to protect against overcurrent events. The gain is adjustable through an external Resistor or an external ADC.

The TC4428DCOA is a versatile, high-performance integrated gate driver, suitable for a wide range of applications. It is available in a standard 48-pin package. It supports up to 24V, 100A, and features an adjustable gain, low-noise bootstrap input, fault indicators, crossover current protection and logic-controlled on/off power switch. The device is also protected against over-current, over temperature, and under-voltage conditions, making it a robust and reliable solution.

¹ https://www.microchip.com/

² https://www.aecq100.org/

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