Microchip Technology

MIC4421BM  

Gate Drivers ICs

MIC4421BM Description

The MIC4421BM is a single-channel, inverting gate driver IC designed for low-side switching applications. Manufactured by Microchip Technology, this power management IC (PMIC) is housed in a surface-mount 8SOIC package, making it suitable for compact and high-density designs. The MIC4421BM operates within a wide supply voltage range of 4.5V to 18V, providing flexibility for various power supply configurations. It features a peak output current capability of 9A for both sourcing and sinking, ensuring robust performance in demanding applications. With a typical rise and fall time of 20ns and 24ns respectively, the MIC4421BM offers fast switching capabilities, minimizing switching losses and improving overall efficiency. The logic input levels are specified as VIL = 0.8V and VIH = 2.4V, ensuring compatibility with a wide range of digital control signals. The moisture sensitivity level (MSL) of 1 (unlimited) indicates that the device is not sensitive to moisture, enhancing its reliability in various environmental conditions.

MIC4421BM Features

• Single Channel Inverting Gate Driver: The MIC4421BM is designed to drive a single low-side switch, making it ideal for applications requiring precise control of power delivery.
• Wide Supply Voltage Range: The device operates from 4.5V to 18V, providing compatibility with a variety of power supply voltages and ensuring stable performance across different operating conditions.
• High Peak Output Current: With a peak output current of 9A for both sourcing and sinking, the MIC4421BM can handle high current loads, making it suitable for demanding applications such as motor control and power conversion.
• Fast Rise and Fall Times: The typical rise and fall times of 20ns and 24ns respectively enable rapid switching, reducing switching losses and improving overall system efficiency.
• Surface-Mount Packaging: The 8SOIC package allows for easy integration into compact and high-density designs, saving board space and enhancing thermal performance.
• Moisture Sensitivity Level 1: The MSL rating of 1 (unlimited) ensures that the device is not sensitive to moisture, enhancing its reliability in various environmental conditions.
• Compliance and Standards: The MIC4421BM is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations and standards.

MIC4421BM Applications

The MIC4421BM is well-suited for a variety of applications where precise control of power delivery is required. Some specific use cases include:

• Motor Control: The high peak output current and fast switching capabilities make the MIC4421BM ideal for driving low-side MOSFETs in motor control applications, ensuring efficient and reliable operation.
• Power Conversion: The wide supply voltage range and robust performance characteristics make it suitable for power conversion circuits, such as DC-DC converters and inverters.
• Battery Management Systems: The device can be used to control the flow of current in battery management systems, ensuring safe and efficient charging and discharging of batteries.
• Industrial Automation: The compact size and high reliability of the MIC4421BM make it suitable for industrial automation applications, where space constraints and harsh operating conditions are common.
• Consumer Electronics: The device can be used in consumer electronics to control power delivery to various components, ensuring efficient operation and long-term reliability.

Conclusion of MIC4421BM

The MIC4421BM from Microchip Technology is a versatile and high-performance single-channel inverting gate driver IC. Its wide supply voltage range, high peak output current, and fast switching capabilities make it suitable for a variety of applications, including motor control, power conversion, and battery management systems. The surface-mount packaging and moisture sensitivity level 1 rating enhance its reliability and ease of integration into compact designs. With its robust performance and compliance with international standards, the MIC4421BM offers a reliable and efficient solution for low-side switching applications in the electronics industry.

MIC4421BM Documents

Download datasheets and manufacturer documentation for MIC4421BM

Datasheets :

MIC4421, MIC4422      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH