IRS21850STRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: The IRS21850STRPBF is a high-performance half-bridge gate driver IC designed for use in power electronics applications. It provides the necessary drive signals for controlling and driving MOSFETs or IGBTs in half-bridge configurations.

Characteristics: - High voltage level shifting capability - Low propagation delay times - High peak output current - Protection features such as under-voltage lockout (UVLO) and over-current protection (OCP) - Wide operating voltage range - Suitable for both low-side and high-side configurations

Package: The IRS21850STRPBF is available in a small outline package (SOIC) with 8 pins. This package offers good thermal performance and ease of integration into various circuit designs.

Essence: The essence of the IRS21850STRPBF lies in its ability to efficiently drive power switches in half-bridge configurations, enabling precise control and reliable operation of power electronic systems.

Packaging/Quantity: The IRS21850STRPBF is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 10V to 20V
• Output Current: ±2A
• Propagation Delay Time: 75ns (typical)
• UVLO Threshold: 9.5V (typical)
• OCP Threshold: 1.6V (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The IRS21850STRPBF features the following pin configuration:

1. VCC: Power supply input for the IC.
2. HO: High-side gate driver output.
3. LO: Low-side gate driver output.
4. VB: Bootstrap supply voltage input for the high-side driver.
5. VS: High-side floating supply return.
6. COM: Common ground connection.
7. HO2: Secondary high-side gate driver output (optional).
8. LO2: Secondary low-side gate driver output (optional).

Functional Features

• High voltage level shifting: The IRS21850STRPBF can handle high voltage levels, allowing it to drive power switches effectively.
• Low propagation delay times: This ensures fast and accurate switching of the MOSFETs or IGBTs.
• Protection features: The IC incorporates UVLO and OCP protection, enhancing system reliability and preventing damage to the power switches.
• Wide operating voltage range: The device can operate within a wide voltage range, making it suitable for various applications.
• Dual outputs (HO2 and LO2): These optional outputs provide flexibility in driving additional power switches.

Advantages and Disadvantages

Advantages: - High-performance gate driver with excellent voltage level shifting capability. - Fast propagation delay times enable efficient switching. - Built-in protection features enhance system reliability. - Suitable for a wide range of power electronics applications. - Optional dual outputs offer flexibility in circuit design.

Disadvantages: - Limited to half-bridge configurations, not suitable for full-bridge or other topologies. - Requires external bootstrap capacitor for high-side driver operation.

Working Principles

The IRS21850STRPBF operates by receiving control signals from a microcontroller or other control circuitry. It generates the necessary drive signals to control the high-side and low-side power switches in a half-bridge configuration. By providing precise timing and voltage level shifting, the IC ensures efficient and reliable switching of the power switches, enabling the desired power flow through the load.

Detailed Application Field Plans

The IRS21850STRPBF finds application in various power electronics systems, including but not limited to: - Motor drives - Switch-mode power supplies - Uninterruptible power supplies (UPS) - Solar inverters - Electric vehicle charging systems

Detailed and Complete Alternative Models

1. IRS21850S: Similar to IRS21850STRPBF but without the optional secondary outputs.
2. IRS21851S: Half-bridge gate driver IC with additional protection features such as desaturation detection and fault reporting.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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