MIC4422ZM-TR

Introduction

The MIC4422ZM-TR is a member of the MIC4422ZM family of integrated dual-gate drivers with latching and feedback outputs. It is designed to provide reliable and robust gate driving signals for safety-critical and mission-critical applications in demanding environments.

Features

The MIC4422ZM-TR features high-performance input detection and output driving circuitry, as well as highly durable, industry-leading isolated output voltage ranges. It is designed to operate at voltages up to 20 V, with a wide input voltage range of 20 V to 44 V, making it suitable for a variety of industrial, automotive, and medical applications. Its output jack is designed to resist repetitive pulsed-overvoltage effects, making it capable of driving high-sidegate transistors up to 50 V.The MIC4422ZM-TR is capable of driving large SO16 and DIP16 (dual-input)power MOSFETs with a high current capability of up to 3.5 A (RMS), and low on-state resistance of the output transistors. The MIC4422ZM-TR also offers three user-selectable enable modes, provides over-temperature protection, and protects itself from transients caused by inductive loads.

Applications

The MIC4422ZM-TR is suitable for a variety of industrial, automotive, and medical applications. It is particularly useful in applications that require high output drive current and high input detection accuracy, such as robotic servo drives, motor control, and medical equipment. It is also ideal for motor control applications that require accurate operation at low power levels, such as automotive HVAC systems, wash machines, dryers, and industrial heating and cooling equipment. It can also be used in other applications including lighting control and security systems.

Working Principle

The MIC4422ZM-TR incorporates a high-precision, step-up input voltage comparison circuit. This voltage comparator monitors the input and compares it to the internal reference voltage to determine the output drive condition. The MIC4422ZM-TR then drives the two FETs of the dual-gate configuration, thus controlling the current flow between the two terminals. The output voltage of the MIC4422ZM-TR is regulated by an internal voltage regulator. The MIC4422ZM-TR can also be used as a controlling element for automotive HVAC systems. It is able to detect variations in the output voltage of the HVAC system, and adjust its output accordingly to maintain the desired output voltage.

Conclusion

TheMIC4422ZM-TR is a dual-gate driver with latchable and feedforward outputs and is designed to provide robust and reliable gate driving signals for a variety of industrial, automotive and medical applications in challenging and demanding environments. It provides high input detection accuracy, high output drive current and temperature protection, making it suitable for a wide range of applications.