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MIC4421ABM
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Product Detailed Parameters
- Description：IC GATE DRVR LOW-SIDE 8SOIC
- 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：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- High Side Voltage - Max (Bootstrap)：-
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Overview
The MIC4421ABM is a high-speed, low-side N-channel MOSFET gate driver manufactured by Microchip Technology. It features a single inverting output capable of delivering a peak source/sink current of 9A. The device operates within a supply voltage range of 4.5V to 18V and accepts standard CMOS or TTL logic inputs with thresholds of 0.8V (VIL) and 3V (VIH). Packaged in an 8-pin SOIC surface-mount format, it provides robust driving capability for large MOSFETs.
Feature Summary
- Delivers high peak output current of 9A for rapid MOSFET switching
- Inverting logic configuration for low-side drive applications
- Compatible with standard CMOS and TTL input logic levels
- Operates over a wide supply voltage range from 4.5V to 18V
Applications
- Low-side N-channel MOSFET gate driving
- Power management circuits requiring high peak current
- Motor control interfaces
- DC-DC converter synchronous rectification
Procurement Notes
Verify the package marking matches the 8-SOIC specification. Confirm the suffix 'BM' indicates the specific temperature grade and packaging variant intended for your design. Ensure the supplier provides original manufacturer documentation to validate authenticity and traceability before integration into production systems.
Selection Notes
Select this component when a single-channel, inverting low-side driver with 9A peak current is required. It is suitable for designs needing compatibility with standard logic levels without external level shifting. Consider thermal performance in the SOIC package if continuous high-current operation is expected compared to higher power packages.
Part Context
This part belongs to the MIC4421/MIC4422 family of MOSFET drivers. The MIC4421 series is designed for rugged, efficient, and easy-to-use gate driving applications. It utilizes a Bipolar/CMOS/DMOS process to achieve high speed and current capability while maintaining low quiescent current consumption during standby states.
Replacement Considerations
The MIC4422ABM serves as the non-inverting counterpart within the same family. For pin-compatible alternatives, verify specific electrical parameters such as propagation delay and peak current against the MIC4421ABM datasheet requirements to ensure functional equivalence in the target circuit.
