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MIC4428BM
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Product Detailed Parameters
- Description：IC GATE DRVR LOW-SIDE 8SOIC
- Series：-
- Mfr：Microchip Technology
- Package：Tube
- Driven Configuration：Low-Side
- Channel Type：Independent
- Number of Drivers：2
- Gate Type：MOSFET (N-Channel, P-Channel)
- Voltage - Supply：4.5V ~ 18V
- Logic Voltage - VIL, VIH：0.8V, 2.4V
- Current - Peak Output (Source, Sink)：1.5A, 1.5A
- Input Type：Inverting, Non-Inverting
- Rise / Fall Time (Typ)：20ns, 29ns
- 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 MIC4428BM is a dual high-speed power MOSFET driver manufactured by Microchip Technology, housed in an 8-pin SOIC package. It delivers a peak output current of 1.5A and operates within a supply voltage range of 4.5V to 18V. The device features low output impedance of 7Ω and short delay times under 40ns typical. It includes latch-up protection capable of withstanding reverse currents down to -5V and offers ESD protection up to 4kV. Designed for driving capacitive loads such as 1000pF in 25ns, it ensures consistent delay times across supply voltage variations.
Feature Summary
- High peak output current capability for rapid switching
- Latch-up protected against reverse current injection
- Robust ESD protection for enhanced reliability
- Consistent propagation delays across operating conditions
Applications
- Driving power MOSFETs in DC-DC converters
- Gate drive applications in motor control systems
- Power management circuits requiring fast switching
Procurement Notes
Verify the specific suffix 'BM' corresponds to the required temperature grade and packaging configuration as defined in the official Microchip datasheet. Ensure compatibility with the target PCB footprint for the SOIC-8 package. Confirm that the supply voltage and load characteristics align with the component's electrical ratings before procurement.
Selection Notes
Select this component when high-speed switching and robust latch-up protection are critical. It is suitable for applications requiring reliable gate drive performance under noisy conditions or potential reverse current scenarios. Consider the 1.5A peak current and low output impedance for efficient power stage control.
Part Context
The MIC4428BM belongs to the TC4426/4427/4428 family of improved buffer/drivers from Microchip Technology. These devices are pin-compatible with earlier generations like the TC426/427/428 but offer enhanced reliability and noise immunity. They are designed to provide rail-to-rail voltage swings and minimum power dissipation.
Replacement Considerations
Compatible substitutes include the TC4428AVOA and other members of the TC442x family, provided they meet the same pinout and electrical specifications. Verify that any replacement maintains the required latch-up protection and output current capabilities.
