MIC4422ZN

Product Overview

Category: Integrated Circuit (IC)

Use: The MIC4422ZN is a high-speed, dual MOSFET driver IC designed to drive two N-channel MOSFETs in a half-bridge configuration. It is commonly used in applications that require high-frequency switching, such as motor control, power supplies, and inverters.

Characteristics: - High-speed switching capability - Low propagation delay - Wide operating voltage range - High peak output current - Low quiescent current

Package: The MIC4422ZN is available in a 8-pin DIP (Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of the MIC4422ZN lies in its ability to efficiently drive N-channel MOSFETs, enabling precise control of power electronics systems.

Packaging/Quantity: The MIC4422ZN is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage Range: 4.5V to 18V
• Output Current: ±9A
• Input Logic High Voltage: 2.4V to VDD
• Input Logic Low Voltage: GND to 0.8V
• Propagation Delay: 25ns (typical)
• Rise/Fall Time: 15ns (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MIC4422ZN features an 8-pin package with the following pin configuration:

1. IN1: Input 1
2. GND: Ground
3. IN2: Input 2
4. VDD: Positive Power Supply
5. LO1: Output 1 Low-Side Driver
6. HO1: Output 1 High-Side Driver
7. LO2: Output 2 Low-Side Driver
8. HO2: Output 2 High-Side Driver

Functional Features

• Dual high-speed MOSFET driver
• Independent inputs for each driver
• TTL/CMOS compatible input logic levels
• Short-circuit protection
• Undervoltage lockout (UVLO) protection
• Thermal shutdown protection

Advantages and Disadvantages

Advantages: - High-speed switching capability allows for efficient power control - Wide operating voltage range enables compatibility with various systems - Low quiescent current minimizes power consumption - Short-circuit, UVLO, and thermal protections enhance system reliability

Disadvantages: - Limited to driving N-channel MOSFETs only - Requires external components for complete circuit implementation

Working Principles

The MIC4422ZN operates by receiving input signals from the control circuitry and amplifying them to drive the gate of N-channel MOSFETs. The high-speed switching capability of the IC ensures rapid turn-on and turn-off times, enabling precise control of the connected power electronics system.

Detailed Application Field Plans

The MIC4422ZN finds extensive application in various fields, including:

1. Motor Control: Used in motor drives for precise speed and torque control.
2. Power Supplies: Enables efficient switching in power supply circuits.
3. Inverters: Facilitates high-frequency switching in inverter systems.
4. LED Lighting: Drives MOSFETs in LED lighting applications for dimming and control.

Detailed and Complete Alternative Models

1. IR2110: Similar dual MOSFET driver IC with additional bootstrap functionality.
2. TC4420: Single MOSFET driver IC with similar characteristics and package options.
3. MAX4422: Dual MOSFET driver IC with adjustable output current capability.

These alternative models offer similar functionality and can be considered as substitutes for the MIC4422ZN in various applications.

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