IR2085STR

Product Overview

Category: Integrated Circuit (IC)

Use: The IR2085STR is a high-performance, single-channel gate driver IC designed for use in power electronics applications. It provides the necessary drive and protection features required to control and drive power MOSFETs and IGBTs.

Characteristics: - High voltage level shifting capability - Fast switching speed - Low propagation delay - Wide operating voltage range - Built-in protection features

Package: The IR2085STR is available in a small outline package (SOP) with 8 pins.

Essence: The essence of the IR2085STR lies in its ability to efficiently drive power MOSFETs and IGBTs, enabling precise control and reliable operation of power electronic systems.

Packaging/Quantity: The IR2085STR is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 10V - 20V
• Output Current: 200mA
• Operating Temperature Range: -40°C to 125°C
• Input Logic Thresholds: TTL/CMOS compatible
• Undervoltage Lockout (UVLO) Protection
• Overcurrent Protection
• Fault Reporting Output

Pin Configuration

The IR2085STR features the following pin configuration:

1. VCC: Power supply input
2. VB: Bootstrap supply input
3. HO: High-side gate driver output
4. LO: Low-side gate driver output
5. COM: Common connection for bootstrap capacitor and low-side return
6. SD: Shutdown input
7. VS: Sense voltage input
8. FG: Fault reporting output

Functional Features

• High voltage level shifting: Allows the IR2085STR to interface between low-voltage control signals and high-voltage power devices.
• Fast switching speed: Enables rapid switching of power MOSFETs and IGBTs, reducing power losses and improving efficiency.
• Built-in protection features: The IC incorporates undervoltage lockout (UVLO) and overcurrent protection to safeguard the power devices from damage.
• Fault reporting output: Provides a signal indicating any fault conditions detected by the IC.

Advantages and Disadvantages

Advantages: - High voltage level shifting capability - Fast switching speed - Built-in protection features enhance system reliability - Compact package size

Disadvantages: - Limited output current capacity (200mA) - Restricted operating temperature range (-40°C to 125°C)

Working Principles

The IR2085STR operates by receiving control signals from a microcontroller or other control circuitry. It uses these signals to generate the necessary gate drive voltages for power MOSFETs or IGBTs. The IC employs high-voltage level shifting techniques to ensure proper interfacing between the low-voltage control signals and the high-voltage power devices. It also incorporates protection features such as undervoltage lockout and overcurrent protection to prevent device failure under abnormal operating conditions.

Application Field Plans

The IR2085STR is widely used in various power electronics applications, including: 1. Motor drives 2. Switch-mode power supplies 3. Uninterruptible power supplies (UPS) 4. Solar inverters 5. Industrial automation systems

Alternative Models

For those seeking alternative options, the following models can be considered: 1. IR2101: Dual-channel gate driver IC with similar specifications and features. 2. IRS21844: Half-bridge gate driver IC suitable for high-power applications. 3. MCP14E7: Single-channel gate driver IC with integrated bootstrap diode.

These alternative models offer similar functionality and can be used as substitutes for the IR2085STR in various applications.

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