MIC4426BMM

Overview

The MIC4426BMM is a dual low-side MOSFET gate driver manufactured by Microchip Technology. It operates on a BiCMOS/DMOS process for high reliability and efficiency. The device supports a supply voltage range of 4.5 V to 18 V. It features peak output currents of 1.5 A for both source and sink operations. Logic input thresholds are defined at 0.8 V (VIL) and 2.4 V (VIH). Typical rise and fall times are 20 ns and 29 ns, respectively. The component is housed in an 8-MSOP package.

Feature Summary

• Dual channel configuration for independent low-side switching control
• High peak current capability of 1.5 A for rapid MOSFET switching
• Inverting logic input compatibility with standard CMOS and TTL levels
• Robust BiCMOS/DMOS fabrication ensuring low power consumption

Applications

• DC/DC converter circuits
• Motor control systems
• Industrial power management applications

Procurement Notes

Verify the specific suffix 'BMM' corresponds to the 8-MSOP package variant when sourcing. Confirm that the manufacturer designation aligns with Microchip Technology, as the part originated from Micrel Semiconductor prior to acquisition. Ensure documentation references the correct datasheet version for electrical characteristics. Cross-reference pinouts to avoid confusion with similar TC4426 series components which may differ in package or speed specifications.

Selection Notes

Select this component for applications requiring dual low-side driving with moderate speed requirements. The 1.5 A peak current is suitable for small to medium-sized MOSFETs. Verify that the operating temperature range meets environmental constraints. Consider the inverting input logic if signal phase alignment is required in the circuit design. Compare against the TC4426A series for potential pin-compatible alternatives with different speed or automotive qualification profiles.

Part Context

The MIC4426BMM belongs to the MIC4426 family of dual low-side MOSFET drivers. This family includes variants such as the MIC4427 and MIC4428, which offer complementary non-inverting outputs. The BMM suffix specifically denotes the MSOP-8 surface-mount package. These drivers are designed to replace discrete transistor solutions, offering higher performance and reduced board space in power electronics designs.

Replacement Considerations

The TC4426AEMF is a related dual low-side driver from Microchip. Verify package compatibility and electrical parameter alignment before substitution. Note that the TC4426A series may have different rise/fall times and automotive qualifications compared to the MIC4426BMM.