TC4427CPAG

Product Overview

Category: Integrated Circuit (IC)

Use: The TC4427CPAG is a high-speed MOSFET driver designed to drive N-channel enhancement mode MOSFETs in various applications.

Characteristics: - High speed and efficiency - Low power consumption - Wide operating voltage range - High output current capability - Protection against shoot-through currents - Thermal shutdown protection

Package: The TC4427CPAG is available in an 8-pin PDIP (Plastic Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package.

Essence: This IC serves as a crucial component in electronic circuits, enabling efficient control and switching of MOSFETs.

Packaging/Quantity: The TC4427CPAG is typically sold in reels or tubes containing a quantity of 250 units per package.

Specifications

• Supply Voltage Range: 4.5V to 18V
• Output Current: 1.5A (maximum)
• Rise/Fall Time: 25ns (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TC4427CPAG features the following pin configuration:

1. VDD - Power supply input
2. GND - Ground reference
3. IN - Input pin for controlling the MOSFET
4. LO - Low-side gate driver output
5. HO - High-side gate driver output
6. SD - Shutdown input (active low)
7. NC - No connection
8. VCC - Bootstrap supply voltage

Functional Features

• High-speed switching: The TC4427CPAG enables fast switching of MOSFETs, reducing power losses and improving overall system efficiency.
• Shoot-through protection: It incorporates a built-in dead-time feature that prevents simultaneous conduction of the high-side and low-side MOSFETs, avoiding shoot-through currents.
• Thermal shutdown protection: The IC includes a thermal shutdown circuit that protects it from excessive heat, ensuring reliable operation even under demanding conditions.

Advantages and Disadvantages

Advantages: - High-speed switching capability - Efficient power management - Protection against shoot-through currents - Wide operating voltage range

Disadvantages: - Limited output current capacity (1.5A maximum) - Requires external bootstrap supply for high-side gate driver

Working Principles

The TC4427CPAG operates by receiving an input signal at the IN pin, which controls the switching of the MOSFET. When the input is high, the high-side gate driver (HO) outputs a voltage to turn on the high-side MOSFET, while the low-side gate driver (LO) outputs a voltage to turn off the low-side MOSFET. Conversely, when the input is low, the HO output turns off the high-side MOSFET, and the LO output turns on the low-side MOSFET.

Detailed Application Field Plans

The TC4427CPAG finds applications in various fields, including but not limited to: - Motor control systems - Power supplies - LED lighting - Switching regulators - DC-DC converters - Audio amplifiers

Detailed and Complete Alternative Models

Some alternative models that can be considered as substitutes for the TC4427CPAG include: - TC4420CPA - TC4424CPA - IR2110 - IRS21844

These alternatives offer similar functionality and characteristics, providing flexibility in choosing the most suitable option for specific applications.

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