Microchip Technology

MIC4421ACT  

Gate Drivers ICs

MIC4421ACT Description

The MIC4421ACT is a low-side gate driver IC designed by Microchip Technology, belonging to the Power Management (PMIC) category. This single-channel, inverting driver is housed in a Through Hole TO220-5 package, making it suitable for applications requiring robust and reliable power management solutions. The MIC4421ACT operates within a wide supply voltage range of 4.5V to 18V and can handle peak output currents of up to 9A for both sourcing and sinking. Its operating temperature range spans from 0°C to 150°C (TJ), ensuring stable performance in various environmental conditions.

MIC4421ACT Features

• Wide Operating Voltage Range: The MIC4421ACT supports a supply voltage range of 4.5V to 18V, providing flexibility for different power supply requirements.
• High Peak Output Current: Capable of sourcing and sinking up to 9A, this gate driver can handle high current loads efficiently.
• Fast Rise and Fall Times: With typical rise and fall times of 20ns and 24ns respectively, the MIC4421ACT ensures rapid switching, reducing switching losses and improving overall system efficiency.
• Inverting Input Type: The inverting input type simplifies the control circuitry, making it easier to integrate into various power management systems.
• Single Channel Design: The single-channel configuration is ideal for applications requiring a straightforward and compact solution.
• Through Hole Mounting: The Through Hole mounting type ensures mechanical stability and ease of integration into printed circuit boards.
• Extended Temperature Range: Operating within a temperature range of 0°C to 150°C (TJ), the MIC4421ACT is suitable for high-temperature environments.
• Compliance and Standards: The MIC4421ACT is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations.

MIC4421ACT Applications

The MIC4421ACT is well-suited for a variety of applications that demand efficient power management and robust gate driving capabilities. Some specific use cases include:

• Power Supplies: Ideal for driving MOSFETs in DC-DC converters and power supplies, ensuring efficient power delivery and minimal switching losses.
• Motor Control: Suitable for driving gate signals in motor control applications, providing precise control and high reliability.
• Industrial Equipment: The extended temperature range and robust design make it suitable for industrial applications where reliability and performance are critical.
• Automotive Systems: Given its high-temperature tolerance and robust performance, the MIC4421ACT can be used in automotive power management systems.

Conclusion of MIC4421ACT

The MIC4421ACT from Microchip Technology is a versatile and reliable low-side gate driver IC, offering a wide operating voltage range, high peak output current, and fast switching capabilities. Its robust design and extended temperature range make it suitable for a variety of demanding applications, including power supplies, motor control, and industrial equipment. While the product is marked as obsolete, it remains a valuable option for existing designs and applications where its unique features and performance benefits are required.

MIC4421ACT Documents

Download datasheets and manufacturer documentation for MIC4421ACT

Datasheets :

MIC4421A/4422A      

HTML Datasheet :

MIC4421A/4422A      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH