MIC4468CWM TR

Product Overview

Category: Integrated Circuit (IC)

Use: The MIC4468CWM TR is a high-speed, low-side MOSFET driver IC. It is designed to drive power MOSFETs in various applications such as motor control, power supplies, and DC-DC converters.

Characteristics: - High-speed switching capability - Low input/output propagation delay - Wide operating voltage range - High peak output current - Thermal shutdown protection

Package: The MIC4468CWM TR is available in a 16-pin wide SOIC (Small Outline Integrated Circuit) package.

Essence: This IC acts as an interface between the control circuitry and the power MOSFET, providing the necessary voltage and current levels to switch the MOSFET on and off efficiently.

Packaging/Quantity: The MIC4468CWM TR is typically sold in reels or tubes containing a specified quantity of ICs, usually 250 or 1000 units per reel/tube.

Specifications

• Supply Voltage Range: 4.5V to 18V
• Output Current: 1.4A (peak)
• Input Threshold Voltage: 2.5V (typical)
• Operating Temperature Range: -40°C to +125°C
• Rise/Fall Time: 20ns (typical)
• Quiescent Current: 200μA (typical)

Pin Configuration

The MIC4468CWM TR has a 16-pin configuration with the following pin assignments:

1. VDD - Power supply voltage
2. IN - Input control signal
3. GND - Ground reference
4. LO1 - Low-side gate driver output 1
5. LO2 - Low-side gate driver output 2
6. LO3 - Low-side gate driver output 3
7. LO4 - Low-side gate driver output 4
8. HO1 - High-side gate driver output 1
9. HO2 - High-side gate driver output 2
10. HO3 - High-side gate driver output 3
11. HO4 - High-side gate driver output 4
12. VDD - Power supply voltage
13. IN - Input control signal
14. GND - Ground reference
15. NC - No connection
16. NC - No connection

Functional Features

• High-speed switching: The MIC4468CWM TR enables fast switching of power MOSFETs, reducing power losses and improving overall system efficiency.
• Low input/output propagation delay: This IC minimizes delays between the input control signal and the corresponding output, ensuring precise timing in applications.
• Wide operating voltage range: The MIC4468CWM TR can operate within a wide voltage range, making it suitable for various power supply designs.
• High peak output current: It provides high peak output currents to drive power MOSFETs effectively, allowing for efficient power delivery.
• Thermal shutdown protection: The IC incorporates thermal shutdown protection to prevent damage due to excessive temperature.

Advantages and Disadvantages

Advantages: - High-speed switching capability improves system efficiency. - Low input/output propagation delay ensures precise timing. - Wide operating voltage range allows for versatile applications. - High peak output current enables efficient power delivery. - Thermal shutdown protection prevents damage from overheating.

Disadvantages: - Limited number of low-side and high-side gate driver outputs (4 each). - Requires external components for complete circuit implementation.

Working Principles

The MIC4468CWM TR operates by receiving an input control signal, which determines the state of the low-side and high-side gate driver outputs. When the input signal is high, the corresponding low-side output is driven low, turning on the power MOSFET connected to it. Conversely, when the input signal is low, the low-side output is driven high, turning off the power MOSFET.

The high-side gate driver outputs operate in an inverted manner, ensuring complementary switching of the power MOSFETs. This allows for efficient control of the power flow and enables various applications such as motor control and power supply regulation.

Detailed Application Field Plans

The MIC4468CWM TR finds applications in various fields, including: - Motor control systems - Power supplies - DC-DC converters - Switching regulators - Inverters - LED drivers - Battery chargers

Its high-speed switching capability, wide operating voltage range, and thermal shutdown protection make it suitable for demanding applications that require efficient power management and precise control.

Detailed and Complete Alternative Models

Some alternative models to the MIC4468CWM TR include: - IR2104 - TC4420 - HIP4081A - IRS21844 - MAX4420

These alternatives offer similar functionality and can be used as substitutes depending on specific application requirements.