IR4426PBF

Product Overview

Category: Integrated Circuit (IC)

Use: The IR4426PBF is a high-performance dual low-side driver IC designed for use in various applications, including motor control, power management, and industrial automation.

Characteristics: - Dual low-side driver - High current capability - Fast switching speed - Low quiescent current - Wide operating voltage range

Package: The IR4426PBF is available in a compact and industry-standard 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of the IR4426PBF lies in its ability to efficiently drive low-side loads, such as power MOSFETs or IGBTs, with high precision and reliability.

Packaging/Quantity: The IR4426PBF is typically sold in reels containing 250 units per reel.

Specifications

• Supply Voltage Range: 4.5V to 20V
• Output Current: Up to 1.5A per channel
• Input Logic Levels: TTL/CMOS compatible
• Operating Temperature Range: -40°C to 125°C
• Propagation Delay Time: 100ns (typical)
• Rise/Fall Time: 25ns (typical)
• Maximum Duty Cycle: 50%

Pin Configuration

The IR4426PBF features an 8-pin SOIC package with the following pin configuration:

Pin 1: VCC Pin 2: IN1 Pin 3: GND Pin 4: OUT1 Pin 5: OUT2 Pin 6: GND Pin 7: IN2 Pin 8: VCC

Functional Features

• Dual Channel: The IR4426PBF provides two independent low-side driver channels, allowing simultaneous control of two separate loads.
• High Current Capability: Each channel can deliver up to 1.5A of continuous current, making it suitable for driving a wide range of loads.
• Fast Switching Speed: The IC offers fast propagation delay and rise/fall times, enabling precise and efficient switching of the connected devices.
• Low Quiescent Current: The device consumes minimal current when not actively switching, reducing power consumption and improving overall efficiency.
• Wide Operating Voltage Range: The IR4426PBF supports a broad supply voltage range, providing flexibility in various applications.

Advantages and Disadvantages

Advantages: - High current capability allows driving demanding loads. - Fast switching speed ensures efficient operation. - Low quiescent current minimizes power consumption. - Wide operating voltage range provides versatility. - Compact and industry-standard package simplifies integration.

Disadvantages: - Limited to low-side driver functionality only. - Not suitable for high-side driver applications.

Working Principles

The IR4426PBF operates by receiving input signals (IN1 and IN2) that control the state of the respective output channels (OUT1 and OUT2). When an input signal is high, the corresponding output channel is activated, allowing current to flow through the load. Conversely, when the input signal is low, the output channel is turned off, interrupting the current path.

Detailed Application Field Plans

The IR4426PBF finds extensive application in various fields, including:

1. Motor Control: The IC can be used to drive DC motors, stepper motors, and brushless DC motors, enabling precise control over motor speed and direction.
2. Power Management: It is well-suited for power management applications, such as controlling power switches, relays, and solenoids.
3. Industrial Automation: The IC plays a vital role in industrial automation systems, facilitating the control of actuators, valves, and other industrial equipment.

Detailed and Complete Alternative Models

1. IR4426S: Similar to the IR4426PBF, but available in a surface-mount DIP (Dual Inline Package) for through-hole mounting.
2. IR4426M: A higher current variant capable of delivering up to 3A per channel, suitable for driving more demanding loads.
3. IR4426G: Designed for automotive applications, featuring enhanced ESD protection and extended temperature range.

These alternative models offer similar functionality to the IR4426PBF while catering to specific requirements or preferences.

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