IR2153S

Product Overview

Category: Integrated Circuit (IC)

Use: The IR2153S is a high-performance, self-oscillating half-bridge driver IC. It is specifically designed for use in electronic circuits that require efficient and reliable control of half-bridge power stages.

Characteristics: - Self-oscillating driver - High voltage level shifting capability - Built-in oscillator with adjustable frequency - Deadtime control for improved efficiency - Protection features against overcurrent and undervoltage

Package: The IR2153S is available in a compact 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of the IR2153S lies in its ability to provide precise control and drive signals to half-bridge power stages, enabling efficient power conversion and motor control applications.

Packaging/Quantity: The IR2153S is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 10V to 20V
• Maximum Output Current: 200mA
• Oscillator Frequency Range: 50kHz to 500kHz
• Deadtime Range: 0.2μs to 10μs
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The IR2153S features the following pin configuration:

1. VCC: Supply voltage input
2. VB: Bootstrap supply voltage input
3. HO: High-side gate driver output
4. LO: Low-side gate driver output
5. CT: Oscillator timing capacitor connection
6. RT: Oscillator timing resistor connection
7. SD: Shutdown input (active low)
8. GND: Ground reference

Functional Features

• Self-Oscillating Driver: The IR2153S incorporates a built-in oscillator, eliminating the need for an external clock source.
• High Voltage Level Shifting: The IC can handle high voltage levels, enabling direct control of power MOSFETs or IGBTs.
• Deadtime Control: Precise deadtime control ensures minimal overlap between high-side and low-side switching, reducing power losses.
• Protection Features: The IR2153S includes overcurrent and undervoltage protection, safeguarding the circuit from potential damage.

Advantages and Disadvantages

Advantages: - Simplifies circuit design by integrating key functionalities - Provides efficient and reliable control of half-bridge power stages - Offers adjustable frequency and deadtime for optimization - Ensures protection against overcurrent and undervoltage conditions

Disadvantages: - Limited output current capability (up to 200mA) - Requires careful consideration of thermal management due to high power dissipation

Working Principles

The IR2153S operates based on a self-oscillating principle. The built-in oscillator generates a square wave signal that drives the high-side and low-side gate drivers. By controlling the deadtime between these signals, the IC regulates the switching of power devices in the half-bridge configuration. This enables efficient power conversion and motor control.

Detailed Application Field Plans

The IR2153S finds applications in various fields, including:

1. Power Supplies: The IC is used in switch-mode power supplies to regulate voltage and current flow efficiently.
2. Motor Drives: It is employed in motor control circuits to drive and control the speed of motors.
3. Lighting Systems: The IR2153S is utilized in lighting systems such as LED drivers and fluorescent lamp ballasts.
4. Inverters: It is integrated into inverter circuits for converting DC power to AC power in applications like solar inverters and UPS systems.

Detailed and Complete Alternative Models

1. IR2155: Similar to the IR2153S, this IC offers additional features like fault protection and adjustable deadtime.
2. IRS2184: This IC provides dual high-side and low-side gate drivers, suitable for full-bridge or three-phase inverter applications.
3. FAN7388: Designed for high-frequency applications, this IC offers enhanced performance and protection features.

These alternative models can be considered based on specific application requirements and desired functionalities.

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