MIC4421ZM-TR

Product Overview

Category

The MIC4421ZM-TR belongs to the category of integrated circuit (IC) drivers.

Use

It is primarily used for driving power MOSFETs and IGBTs in various applications.

Characteristics

• High peak output current capability
• Wide input voltage range
• Fast rise and fall times
• Low propagation delay
• Low quiescent current
• Thermal shutdown protection

Package

The MIC4421ZM-TR is available in a small outline package (SOIC) with 8 pins.

Essence

This IC driver is designed to provide efficient and reliable control of power MOSFETs and IGBTs, ensuring optimal performance in various electronic systems.

Packaging/Quantity

The MIC4421ZM-TR is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage: 4.5V to 18V
• Peak Output Current: 9A
• Input Threshold Voltage: 2.5V
• Propagation Delay: 25ns
• Rise/Fall Time: 15ns
• Quiescent Current: 100µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MIC4421ZM-TR has the following pin configuration:

```

---

| | --| VDD OUT |-- Pin 1: VDD (Supply Voltage) --| IN GND |-- Pin 2: IN (Input Signal) --| LO LO |-- Pin 3: LO (Low-Side Gate Drive Output) --| HO HO |-- Pin 4: HO (High-Side Gate Drive Output) --| VS VS |-- Pin 5: VS (Bootstrap Supply Voltage) --| HO HO |-- Pin 6: HO (High-Side Gate Drive Output) --| LO LO |-- Pin 7: LO (Low-Side Gate Drive Output) --| GND IN |-- Pin 8: GND (Ground) |___________| ```

Functional Features

• High peak output current allows efficient switching of power MOSFETs and IGBTs.
• Wide input voltage range enables compatibility with various control systems.
• Fast rise and fall times ensure quick switching transitions, minimizing power losses.
• Low propagation delay enhances the overall system response time.
• Low quiescent current reduces power consumption during idle periods.
• Thermal shutdown protection prevents damage due to excessive temperature.

Advantages and Disadvantages

Advantages

• High peak output current capability for efficient power switching.
• Wide input voltage range for compatibility with different control systems.
• Fast rise and fall times for quick switching transitions.
• Low propagation delay for improved system response time.
• Low quiescent current for reduced power consumption.
• Thermal shutdown protection for enhanced reliability.

Disadvantages

• Limited to driving power MOSFETs and IGBTs, not suitable for other types of devices.
• Requires external bootstrap supply voltage for high-side gate drive.

Working Principles

The MIC4421ZM-TR operates by receiving an input signal (IN) and generating complementary gate drive signals (LO and HO) for the low-side and high-side power switches, respectively. These gate drive signals control the conduction and blocking states of the power MOSFETs or IGBTs connected in the circuit. The IC driver ensures precise timing and sufficient current to switch the power devices efficiently.

Detailed Application Field Plans

The MIC4421ZM-TR is widely used in various applications, including:

1. Motor control systems
2. Switching power supplies
3. DC-DC converters
4. Inverters
5. LED lighting systems
6. Audio amplifiers
7. Industrial automation

Detailed and Complete Alternative Models

1. IR2110: High voltage, high-speed power MOSFET and IGBT driver.
2. TC4420/TC4429: Dual MOSFET drivers with low input/output capacitance.
3. MAX4420/MAX4429: High-speed, dual MOSFET drivers with internal level shifting.

These alternative models offer similar functionalities and can be considered as substitutes for the MIC4421ZM-TR in various applications.

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