MIC4467CN

Product Overview

• Category: Integrated Circuit
• Use: Power MOSFET and IGBT Driver
• Characteristics:
  • High peak output current
  • Wide input voltage range
  • Low propagation delay
  • Fast rise and fall times
• Package: DIP (Dual Inline Package)
• Essence: High-performance driver for power MOSFETs and IGBTs
• Packaging/Quantity: Tube, 25 pieces per tube

Specifications

• Supply Voltage Range: 4.5V to 18V
• Output Current: 1.2A (peak), 0.6A (continuous)
• Input Threshold Voltage: 2.5V (typical)
• Propagation Delay: 55ns (typical)
• Rise/Fall Times: 20ns (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MIC4467CN has a standard dual inline package (DIP) with 8 pins. The pin configuration is as follows:

```

---

| | --| VDD GND |-- Pin 1: Supply Voltage (VDD) --| IN LO |-- Pin 2: Input Signal (IN) --| HO VS |-- Pin 3: High-Side Output (HO) --| VB HS |-- Pin 4: Bootstrap Supply (VB) --| NC NC |-- Pin 5: Not Connected (NC) --| COM VS |-- Pin 6: Common Ground (COM) --| LIN HO |-- Pin 7: Low-Side Input (LIN) --| VSS VDD |-- Pin 8: Negative Supply Voltage (VSS) |___________| ```

Functional Features

• High peak output current allows driving power MOSFETs and IGBTs with fast switching characteristics.
• Wide input voltage range enables compatibility with various control circuits.
• Low propagation delay ensures precise timing in switching applications.
• Fast rise and fall times minimize power losses during switching transitions.

Advantages and Disadvantages

Advantages: - High-performance driver for demanding power electronics applications. - Versatile input voltage range allows integration into different systems. - Fast switching characteristics enable efficient power conversion. - Compact DIP package facilitates easy integration onto PCBs.

Disadvantages: - Limited output current compared to some specialized drivers. - Not suitable for extremely high-frequency applications. - Requires external bootstrap supply for high-side gate drive.

Working Principles

The MIC4467CN is a high-speed, non-inverting power MOSFET and IGBT driver. It utilizes a bootstrap technique to provide the necessary voltage levels for driving the high-side gate of the power device. The input signal controls the state of the low-side output, which in turn drives the power device's gate. The high-side output is driven by a bootstrap capacitor charged from the VB pin. This configuration allows efficient switching of power devices with minimal power losses.

Detailed Application Field Plans

The MIC4467CN is widely used in various applications that require high-performance power MOSFET and IGBT drivers. Some common application fields include:

1. Switching Power Supplies: The MIC4467CN can be used to drive power MOSFETs in switch-mode power supplies, enabling efficient power conversion and regulation.
2. Motor Control: It is suitable for driving MOSFETs or IGBTs in motor control circuits, providing precise control over motor speed and direction.
3. LED Lighting: The high-speed switching capability makes it ideal for driving power MOSFETs in LED lighting applications, ensuring efficient and flicker-free operation.
4. Automotive Electronics: The MIC4467CN finds applications in automotive systems such as electronic fuel injection, ignition control, and motor drive circuits.
5. Industrial Automation: It is used in various industrial automation applications, including robotics, motor drives, and power inverters.

Detailed and Complete Alternative Models

1. IR2110: High-voltage, high-speed power MOSFET and IGBT driver with similar features and performance.
2. TC4427: Low-cost, high-speed MOSFET and IGBT driver suitable for less demanding applications.
3. MAX4427: Precision, low-power MOSFET and IGBT driver with wide input voltage range and low propagation delay.

These alternative models offer similar functionality to the MIC4467CN and can be considered based on specific application requirements.

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