MIC4420CN

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 in various applications.
• Packaging/Quantity: Available in tubes or reels, with a quantity of 50 units per tube/reel.

Specifications

• Supply Voltage: 4.5V to 18V
• Output Current: 1.5A (peak), 0.5A (continuous)
• Input Threshold Voltage: 2.4V (typical)
• Propagation Delay: 25ns (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MIC4420CN has the following pin configuration:

```

---

| | --| VDD GND |-- Pin 1: Supply Voltage (VDD) --| IN LO |-- Pin 2: Input Signal (IN) --| HO LI |-- Pin 3: Output Signal (HO) --| VS HS |-- Pin 4: Source Voltage (VS) --| VB HB |-- Pin 5: Bootstrap Voltage (VB) --| NC NC |-- Pin 6: Not Connected (NC) --| NC NC |-- Pin 7: Not Connected (NC) --| VSS OUT |-- Pin 8: Ground (VSS) |___________| ```

Functional Features

• High-speed switching capability
• High peak output current
• Low input threshold voltage
• Wide operating voltage range
• Built-in bootstrap diode for high-side drive

Advantages and Disadvantages

Advantages: - Fast switching speed allows for efficient power conversion. - High peak output current enables driving of power MOSFETs and IGBTs with low on-resistance. - Low input threshold voltage ensures compatibility with various control signals. - Wide operating voltage range provides flexibility in different applications. - Built-in bootstrap diode simplifies the high-side drive circuitry.

Disadvantages: - Limited continuous output current compared to some other driver ICs. - Not suitable for high-power applications requiring higher output currents.

Working Principles

The MIC4420CN is a high-speed, high-current driver designed to efficiently drive power MOSFETs and IGBTs. It operates by receiving an input signal (IN) and generating a corresponding output signal (HO) to drive the gate of the MOSFET or IGBT. The driver utilizes a bootstrap circuit to provide the necessary voltage level for driving the high-side switch. This allows for efficient switching and minimizes power losses.

Detailed Application Field Plans

The MIC4420CN is commonly used in various applications, including:

1. Switching Power Supplies
2. Motor Control
3. DC-DC Converters
4. Inverters
5. LED Lighting Systems
6. Audio Amplifiers
7. Industrial Automation

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the MIC4420CN are:

1. IR2110: High and low side driver with independent inputs
2. TC4420: Dual MOSFET driver with similar specifications
3. HIP4081A: High-speed, high-current driver with additional protection features
4. MAX4420: Low-power, high-speed driver for low-side applications

These alternative models offer similar functionality and can be chosen based on specific application requirements.

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