MIC4425CN

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 efficient switching of power devices
• Packaging/Quantity: Tube packaging, 25 pieces per tube

Specifications

• Supply Voltage: 4.5V to 18V
• Output Current: 1.5A peak, 0.5A continuous
• Input Threshold Voltage: 2.4V typical, 3.0V maximum
• Propagation Delay: 35ns typical, 50ns maximum
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MIC4425CN has the following pin configuration:

```

---

| | --| VDD GND |-- Pin 1: Supply Voltage (VDD) / Ground (GND) --| IN LO |-- Pin 2: Input (IN) / Low-Side Output (LO) --| HO HO |-- Pin 3: High-Side Output (HO) --| VB VB |-- Pin 4: Bootstrap Supply Voltage (VB) --| VS VS |-- Pin 5: High-Side Floating Supply Voltage (VS) --| NC NC |-- Pin 6: No Connection (NC) --| LI LI |-- Pin 7: Low-Side Input (LI) --| VCC VCC |-- Pin 8: Logic Supply Voltage (VCC) |___________| ```

Functional Features

• High-speed switching capability
• High-current drive capability
• Low-side output voltage swing close to ground
• Bootstrap supply voltage for high-side drive
• Built-in under-voltage lockout (UVLO) protection
• Logic-level input compatible with TTL and CMOS

Advantages and Disadvantages

Advantages: - Fast switching speed improves system efficiency - High-current drive capability enables driving of power devices - Low-side output voltage swing allows efficient power switching - UVLO protection prevents device damage during low voltage conditions - Wide operating temperature range for versatile applications

Disadvantages: - Limited to low-side and high-side drive applications only - Requires external bootstrap capacitor for high-side drive

Working Principles

The MIC4425CN is designed to drive MOSFETs and IGBTs in various applications. It utilizes a high-speed, high-current driver circuit to efficiently switch power devices. The low-side output voltage swing close to ground ensures effective power switching, while the bootstrap supply voltage provides the necessary drive for high-side operation. The built-in under-voltage lockout protection safeguards the device from potential damage during low voltage conditions.

Application Field Plans

The MIC4425CN finds extensive use in the following application fields:

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

Alternative Models

For alternative options, consider the following models:

1. MIC4424CN: Similar specifications, but with 4 outputs instead of 2.
2. IR2110: High-voltage, high-speed power MOSFET and IGBT driver.
3. TC4427: Low-power, dual MOSFET driver with thermal shutdown protection.

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

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