MIC4421AYN

Product Overview

• Category: Integrated Circuit
• Use: Driver for MOSFETs and IGBTs
• Characteristics: High-speed, high-current, low-side driver
• Package: 8-pin DIP (Dual In-line Package)
• Essence: Provides a high current drive capability for driving power MOSFETs and IGBTs
• Packaging/Quantity: Available in tubes or reels, quantity varies based on supplier

Specifications

• Supply Voltage: 4.5V to 18V
• Output Current: 9A peak
• Input Threshold Voltage: 2.5V
• Propagation Delay: 25ns
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MIC4421AYN has the following pin configuration:

```

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| | --| VDD GND |-- Pin 1: Supply Voltage (VDD) and Ground (GND) --| IN LO |-- Pin 2: Input (IN) and Low-Side Output (LO) --| HO HO |-- Pin 3: High-Side Output (HO) --| NC NC |-- Pin 4: No Connection (NC) --| HO HO |-- Pin 5: High-Side Output (HO) --| LO IN |-- Pin 6: Low-Side Output (LO) and Input (IN) --| GND VDD |-- Pin 7: Ground (GND) and Supply Voltage (VDD) |___________| ```

Functional Features

• High-speed switching capability
• High-current drive capability
• Logic-level input compatible
• Undervoltage lockout protection
• Thermal shutdown protection
• Short-circuit protection

Advantages and Disadvantages

Advantages: - High-speed switching allows for efficient power control - High-current drive capability enables driving of power MOSFETs and IGBTs - Logic-level input compatibility simplifies interfacing with microcontrollers - Built-in protection features enhance reliability and safety

Disadvantages: - Limited to low-side driver applications - Requires an external power supply

Working Principles

The MIC4421AYN is designed to drive power MOSFETs and IGBTs in low-side configurations. It accepts a logic-level input signal and provides a high current drive to the gate of the connected device. The high-speed switching capability ensures efficient power control, while the built-in protection features safeguard against potential faults such as undervoltage, thermal shutdown, and short-circuits.

Application Field Plans

The MIC4421AYN finds applications in various fields, including:

1. Motor control systems
2. Switching power supplies
3. LED lighting systems
4. Automotive electronics
5. Industrial automation

Alternative Models

Some alternative models that offer similar functionality to the MIC4421AYN are:

1. IR2110
2. TC4420
3. MAX4420
4. HIP4081A
5. IRS21844

These models can be considered based on specific requirements and availability.

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