IR2103STR

Product Overview

Category: Integrated Circuit (IC)

Use: The IR2103STR is a high voltage, high-speed power MOSFET and IGBT driver. It is designed to drive both the high-side and low-side switches in half-bridge and full-bridge configurations.

Characteristics: - High voltage capability - Fast switching speed - Low power consumption - Compact package size - Wide operating temperature range

Package: SOIC-8

Essence: The IR2103STR is an essential component in power electronics applications where efficient and reliable switching of high-power devices is required.

Packaging/Quantity: The IR2103STR is typically sold in reels containing 2500 units.

Specifications

• Supply Voltage: 10V - 20V
• Output Current: ±200mA
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay Time: 120ns (typical)
• Rise/Fall Time: 30ns (typical)
• Maximum Duty Cycle: 50%

Pin Configuration

The IR2103STR has a total of 8 pins arranged as follows:

___________ | | VCC|1 8|HO IN+|2 7|LO IN-|3 6|VS COM|4 5|VB |___________|

• VCC: Power supply input
• IN+: High-side gate driver input
• IN-: Low-side gate driver input
• COM: Common ground
• HO: High-side gate driver output
• LO: Low-side gate driver output
• VS: High-side floating supply voltage
• VB: Bootstrap supply voltage

Functional Features

• High voltage level shifting
• Independent high-side and low-side gate drivers
• Undervoltage lockout protection
• Shoot-through prevention logic
• Adjustable dead time control
• Fault protection and feedback signals

Advantages and Disadvantages

Advantages: - High voltage capability allows driving of power MOSFETs and IGBTs in various applications - Fast switching speed enables efficient power conversion - Low power consumption reduces energy losses - Compact package size facilitates integration into space-constrained designs - Wide operating temperature range ensures reliable performance in harsh environments

Disadvantages: - Limited output current may restrict usage in high-power applications - Requires external components for bootstrap supply voltage generation

Working Principles

The IR2103STR operates by receiving input signals from a microcontroller or other control circuitry. It generates complementary output signals to drive the high-side and low-side switches of a half-bridge or full-bridge configuration. The high-side gate driver utilizes a bootstrap capacitor to generate a voltage higher than the supply voltage, enabling efficient switching of high-side devices.

Detailed Application Field Plans

The IR2103STR is commonly used in the following applications:

1. Motor drives
2. Switch-mode power supplies
3. Uninterruptible power supplies (UPS)
4. Solar inverters
5. Electric vehicle charging systems
6. Induction heating systems
7. Welding equipment

Alternative Models

Below are some alternative models that can be considered as substitutes for the IR2103STR:

1. IR2110
2. IRS21844
3. FAN7382
4. HIP4081A
5. TC4427

These models offer similar functionality and can be used as drop-in replacements in many applications.

In conclusion, the IR2103STR is a high-performance integrated circuit designed for driving high-power devices in various applications. Its compact size, fast switching speed, and wide operating temperature range make it a popular choice among power electronics designers.

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