MIC4422ACM

Logic Voltage - VIL, VIH:	0.8V, 3V
Base Part Number:	MIC4422
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 150°C (TJ)
Rise / Fall Time (Typ):	20ns, 24ns
Input Type:	Non-Inverting
Current - Peak Output (Source, Sink):	9A, 9A
Series:	--
Voltage - Supply:	4.5 V ~ 18 V
Gate Type:	N-Channel MOSFET
Number of Drivers:	1
Channel Type:	Single
Driven Configuration:	Low-Side
Part Status:	Discontinued at Digi-Key
Packaging:	Tube

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Overview

The MIC4422ACM is a low-side gate driver that provides efficient output power for systems that need an optimal combination of high-density power and low-power standby operation. The device has an integrated power MOSFET that can deliver up to 500mA at 20V for power management applications. This device is used in a variety of applications in gate driving applications such as motor control, lighting control, power switches, load switches, smart meters, and other related power management applications.The MIC4422ACM is designed to provide fast switching speeds and accurately controlled current pulses to drive high-current power MOSFETs. It also provides reduced power consumption through its low-standby current consumption. The device has a built-in low-voltage protection circuit which safely cuts off the output in case of overvoltage or undervoltage conditions.

Features

The MIC4422ACM is designed to provide the following features:• Low-side operation: The device is designed to control multiple power MOSFETs with a single chip.• Low-voltage protection: The device protects output from overvoltage and undervoltage conditions.• Multi-mode enable: The device offers two enable modes to increase the total number of MOSFETs that can be controlled.• High-current output: The device is capable of delivering up to 500mA at 20V.• Low-power standby: The device has a low-power standby mode for reduced power consumption.• Fast switching times: The device has fast switching times for accurate control of power MOSFETs.• Open-drain output: The device provides an open-drain output.

Applications

The MIC4422ACM is an ideal device for applications requiring low-power standby operation, fast switching speeds, and multiple-mode enable capability. The device is well-suited for gate driving applications including motor control, lighting control, power switches, load switches, smart meters, and other related power management applications.

Working Principle

The MIC4422ACM is a low-side gate driver that provides efficient output power for systems that need an optimal combination of high-density power and low-power standby operation. The device operates by connecting an input voltage to the EN pin to enable the low-side output. This drives the FET gate via the EN pin. The device provides an open-drain output, which can be connected to an external load. When the load is switched off, the FET gate is driven to a voltage below the threshold of the external load, thus providing efficient current control and fast switching times.The device also incorporates a low-voltage protection circuit which cuts-off the output in case of overvoltage or undervoltage conditions. The device also has low-power standby operation and fast switching times, making it ideal for high-density power applications.

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