IR2128STR

Product Overview

Category: Integrated Circuit (IC)

Use: The IR2128STR is a high voltage, high-speed power MOSFET and IGBT driver. It is specifically designed for applications that require efficient switching of power devices.

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

Package: The IR2128STR is available in a small outline package (SOP) with 16 pins.

Essence: The essence of the IR2128STR lies in its ability to drive power MOSFETs and IGBTs efficiently, enabling effective power switching in various applications.

Packaging/Quantity: The IR2128STR is typically sold in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage: 10V - 20V
• Output Current: 200mA
• Operating Temperature Range: -40°C to 125°C
• Rise Time: 50ns
• Fall Time: 35ns
• Propagation Delay: 75ns
• Maximum Duty Cycle: 50%

Pin Configuration

The IR2128STR has a total of 16 pins, each serving a specific function. The detailed pin configuration is as follows:

1. VCC: Power supply voltage input
2. VB: Bootstrap supply voltage input
3. HO: High-side gate driver output
4. LO: Low-side gate driver output
5. COM: Common connection for the bootstrap capacitor
6. VS: High-side floating supply return
7. SD: Shutdown input
8. RT: Deadtime control resistor connection
9. CT: Bootstrap capacitor connection
10. HB: High-side floating supply input
11. HS: High-side floating supply return
12. LS: Low-side floating supply return
13. LGND: Low-side gate driver ground
14. VSS: Logic ground
15. IN: Logic input
16. NC: No connection

Functional Features

• High voltage capability allows driving of power MOSFETs and IGBTs in various applications.
• Fast switching speed enables efficient power switching, reducing power losses.
• Low power consumption ensures energy efficiency.
• Shutdown input (SD) allows for easy system control and power management.
• Deadtime control resistor connection (RT) provides flexibility in adjusting deadtime between high-side and low-side drivers.

Advantages and Disadvantages

Advantages: - High voltage capability for driving power devices - Fast switching speed for efficient power switching - Low power consumption for energy efficiency - Compact package size for space-saving designs - Wide operating temperature range for versatile applications

Disadvantages: - Limited output current (200mA) - Maximum duty cycle limited to 50%

Working Principles

The IR2128STR operates by receiving logic inputs and generating corresponding gate drive signals for power MOSFETs and IGBTs. It utilizes a bootstrap capacitor to provide the necessary voltage level required for driving the high-side power device efficiently. The deadtime control resistor allows adjustment of the time delay between the high-side and low-side drivers, preventing shoot-through currents during switching transitions.

Application Field Plans

The IR2128STR finds extensive use in various applications, including but not limited to: - Motor control systems - Switching power supplies - Inverters - Uninterruptible Power Supplies (UPS) - Industrial automation equipment - Solar inverters

Alternative Models

For those seeking alternative options, the following models can be considered as substitutes for the IR2128STR: - IR2101 - IR2110 - IR2184 - IRS2104

These models offer similar functionalities and characteristics, providing flexibility in choosing the most suitable driver for specific applications.

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