AUIRS2184S

Current - Peak Output (Source, Sink):	1.9A, 2.3A
Base Part Number:	AUIRS2184S
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C (TJ)
Rise / Fall Time (Typ):	15ns, 12ns
High Side Voltage - Max (Bootstrap):	600V
Input Type:	Non-Inverting
Series:	Automotive, AEC-Q100
Logic Voltage - VIL, VIH:	0.8V, 2.5V
Voltage - Supply:	10 V ~ 20 V
Gate Type:	IGBT, N-Channel MOSFET
Number of Drivers:	2
Channel Type:	Synchronous
Driven Configuration:	Half-Bridge
Part Status:	Obsolete
Packaging:	Tube

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Introduction

Power management integrated circuits (PMICs) have been steadily gaining popularity as essential components for a wide range of systems which need to distribute and control power. They are used to ensure optimum system performance, and in some cases, to extend battery life. PMICs can be very complex and vary in complexity, depending on the complexity of the system it is a part of. A simple PMIC might provide a single voltage output and the appropriate drive current, while a more complex PMIC may provide two or more voltage outputs, with specific drive current requirements.One of the most commonly used PMICs is the gate driver. Gate drivers are used to control the flow of current in semiconductor devices such as power transistors and integrated circuits. Gate drivers are capable of providing the necessary voltage and current control to a wide range of semiconductor devices. Gate drivers can also act as an interface between the system power supply and the device.The AUIRS2184S is a popular gate driver from Infineon Technologies AG. This article will discuss the application field and working principle of the AUIRS2184S.

Application Field of the AUIRS2184S

The AUIRS2184S is a gate driver integrated circuit (IC) designed for driving high power MOSFETs, IGBTs, and Power MOSFETs. It has a very fast slew rate and is suitable for use in power supplies and motor controllers. The device has a typical switching speed of 200kHz and can work with both 3.3V and 5V logic signals. It can also drive loads of up to 100V and 10A, making it suitable for high power applications.The AUIRS2184S has built-in overvoltage and overcurrent protection, as well as over-temperature protection. It also has a shutdown feature for low-power applications. Its compact package makes it suitable for applications where space is limited.

Working Principle of the AUIRS2184S

The AUIRS2184S gate driver consists of two separate sections: a logic section and a power section. The logic section takes in a logic input signal (e.g., 3.3V or 5V) and produces an output signal to control the power section. The power section, which is composed of an output buffer, a P-channel MOSFET, and an N-channel MOSFET, takes the output signal from the logic section and amplifies it to drive the load.The MOSFETs in the power section are controlled by two separate signals. The first signal, the Pulse-Wide Modulation (PWM) signal, is determined by the same logic signal that controls the logic section. The PWM signal is used to set the on/off times of the MOSFETs, and thus control the output voltage. The second signal, the logic enable signal, is also derived from the logic signal, and is used to enable or disable the MOSFETs. This signal is used to ensure that the power section is disabled when the logic signal is low, thus preventing unnecessary current flow. The AUIRS2184S also provides several different protection features such as overcurrent and over-temperature protection. The overcurrent protection is used to protect the MOSFETs from damage due to excessive current. The over-temperature protection is used to disable the power section if the temperature exceeds a set limit.

Conclusion

In conclusion, the AUIRS2184S is a popular gate driver IC from Infineon Technologies AG. It is suitable for driving high power MOSFETs, IGBTs and Power MOSFETs, and can be used in power supplies and motor controllers. The device has a typical switching speed of 200kHz and can drive loads of up to 100V and 10A. It also has built-in overcurrent and over-temperature protection, and a shutdown feature for low-power applications.

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