MIC4427BMM-TR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Discontinued at Digi-Key
Driven Configuration:	Low-Side
Channel Type:	Independent
Number of Drivers:	2
Gate Type:	N-Channel, P-Channel MOSFET
Voltage - Supply:	4.5 V ~ 18 V
Logic Voltage - VIL, VIH:	0.8V, 2.4V
Current - Peak Output (Source, Sink):	1.5A, 1.5A
Input Type:	Non-Inverting
Rise / Fall Time (Typ):	20ns, 29ns
Operating Temperature:	-40°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package:	8-MSOP
Base Part Number:	MIC4427

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IntroductionThe MIC4427BMM-TR is a dual N-channel enhancement mode MOSFET driver. It is often used in power management and gate driver applications. The device has several features that make it useful for a wide range of applications. The MIC4427BMM-TR is designed to provide a reliable, high performance solution for driving power MOSFETs. It is well suited for driving a range of applications such as power switches and converters.Working PrincipleThe MIC4427BMM-TR is a step-up or step-down gate driver. It can be used for controlling the direction of the current flowing through a MOSFET. The device contains two high-side and two low-side drivers. Each of the drivers has an operating voltage range from 4.5 to 18V. In addition, the MIC4427BMM-TR has an adjustable high speed oscillator with a frequency range from 10kHz to 200kHz.The MIC4427BMM-TR allows the user to program the turn-on, turn-off and dead-time of the driver. The device has a current limit of 1.2A and a thermal shutdown function. The thermal shutdown feature helps to protect the device from overheating.Application FieldThe MIC4427BMM-TR is well suited for a variety of applications. It is useful for driving power MOSFETs in a variety of applications including power switching and DC-DC conversion. The device is particularly well suited for high frequency applications such as local area networks and ethernet switching. The MIC4427BMM-TR is often used for PWM control in adjustable buck converters.The MIC4427BMM-TR can also be used for driving high power LEDs. The device has an adjustable oscillator which can be used to adjust the frequency of the PWM signal for driving high power LEDs. This can help to reduce the amount of power consumed by the LED, resulting in increased efficiency.ConclusionThe MIC4427BMM-TR is a dual N-channel enhancement mode MOSFET driver. It has a wide range of features that make it suitable for a variety of applications. The device is capable of driving power MOSFETS in high frequency applications such as local area networks and high power LEDs. The MIC4427BMM-TR also has an adjustable current limit and a thermal shutdown feature to protect the device from overheating. The MIC4427BMM-TR is an ideal solution for a wide range of power management and gate driver applications. Its adjustable oscillator, current limit and thermal shutdown feature make it suitable for a variety of applications.

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