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MIC4421ACT
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Product Detailed Parameters
- Description：IC GATE DRVR LOW-SIDE TO220-5
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Driven Configuration：Low-Side
- Channel Type：Single
- Number of Drivers：1
- Gate Type：MOSFET (N-Channel)
- Voltage - Supply：4.5V ~ 18V
- Logic Voltage - VIL, VIH：0.8V, 3V
- Current - Peak Output (Source, Sink)：9A, 9A
- Input Type：Inverting
- Rise / Fall Time (Typ)：20ns, 24ns
- Operating Temperature：0°C ~ 150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-220-5
- Supplier Device Package：TO-220-5
- High Side Voltage - Max (Bootstrap)：-
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Overview
The MIC4421ACT is a single-channel, low-side MOSFET gate driver manufactured by Microchip Technology. It operates within a supply voltage range of 4.5 V to 18 V and delivers a peak output current of 9 A. The device features an inverting logic configuration with typical rise and fall times of 20 ns and 24 ns, respectively. Designed for industrial applications, it supports a junction temperature range from -40°C to +150°C. The component is housed in an 8-SOIC surface-mount package.
Feature Summary
- Delivers high peak drive current of 9 A for rapid MOSFET switching
- Supports wide supply voltage operation from 4.5 V to 18 V
- Features fast propagation delays with 20 ns rise and 24 ns fall times
- Rated for extended industrial junction temperatures up to 150°C
Applications
- Industrial motor control systems
- Power supply inverters
- High-frequency switching circuits
Procurement Notes
Verify the specific suffix 'ACT' against official Microchip documentation to confirm the exact temperature grade and packaging type. Ensure compatibility with existing PCB footprints for the 8-SOIC package. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement specifications.
Selection Notes
Select this component when high peak current capability is required for driving power MOSFETs or IGBTs in low-side configurations. The wide operating temperature range makes it suitable for harsh industrial environments. Compare performance metrics such as propagation delay and supply voltage limits against alternative drivers to ensure system requirements are met.
Part Context
This part belongs to the MIC4421 family of single-channel low-side gate drivers. These devices are designed to interface between logic-level inputs and power switches. The family offers robust performance with high peak currents and fast switching speeds, making them standard choices for efficient power management and motor drive applications.
Replacement Considerations
Direct replacements include the MIC4421CM and MIC4421AYN. Verify pinout compatibility and electrical specifications such as supply voltage range and output current capabilities before substituting.
