IR4428STR

Product Overview

Category: Integrated Circuit (IC)

Use: IR4428STR is a dual low-side driver IC designed for use in automotive applications. It is commonly used to drive various loads such as motors, solenoids, and lamps.

Characteristics: - Dual low-side driver - Automotive-grade - High current capability - Low quiescent current - Over-temperature protection - ESD protection

Package: IR4428STR is available in a small outline package (SOP) with 8 pins.

Essence: The essence of IR4428STR lies in its ability to provide reliable and efficient control of loads in automotive systems.

Packaging/Quantity: IR4428STR is typically packaged in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 4.5V to 28V
• Output Current: Up to 1.5A per channel
• Quiescent Current: 10µA (typical)
• Operating Temperature Range: -40°C to +125°C
• ESD Protection: ±2kV (Human Body Model)

Pin Configuration

The pin configuration of IR4428STR is as follows:

___________ | | 1 | VCC | 8 2 | IN1 | 7 3 | OUT1 | 6 4 | GND | 5 |___________|

Functional Features

• Dual Channel: IR4428STR has two independent channels, allowing simultaneous control of two different loads.
• High Current Capability: Each channel can handle up to 1.5A of continuous current, making it suitable for driving various automotive loads.
• Over-Temperature Protection: The IC incorporates thermal shutdown protection, preventing damage due to excessive temperature.
• ESD Protection: IR4428STR provides built-in electrostatic discharge (ESD) protection, safeguarding the IC from potential damage during handling and operation.

Advantages and Disadvantages

Advantages: - High current capability enables driving of demanding loads. - Automotive-grade quality ensures reliability in harsh environments. - Over-temperature protection prevents damage due to overheating. - ESD protection enhances durability and longevity.

Disadvantages: - Limited to low-side driver applications. - Not suitable for high voltage applications exceeding 28V.

Working Principles

IR4428STR operates by receiving control signals on its input pins (IN1). These signals determine the state of the corresponding output pins (OUT1), which drive the connected loads. The IC regulates the current flow through the load based on the input signals received.

Detailed Application Field Plans

IR4428STR finds extensive use in automotive systems, including but not limited to: - Automotive lighting control - Motor control for power windows - Solenoid control for door locks - Actuator control for HVAC systems

Alternative Models

Some alternative models that can be considered as replacements for IR4428STR are: - IR4427STR: Single channel low-side driver IC with similar specifications. - IRS2113PBF: Dual high-side and low-side driver IC with additional features. - BTS50085-1TMB: Dual channel smart high-side power switch with diagnostic capabilities.

These alternative models offer different features and specifications, allowing flexibility in choosing the most suitable option for specific applications.

In conclusion, IR4428STR is a dual low-side driver IC designed for automotive applications. With its high current capability, over-temperature protection, and ESD protection, it provides reliable and efficient control of various loads. Its compact package and wide operating temperature range make it ideal for automotive systems.