IRS21956SPBF

Product Overview

Category: Integrated Circuit (IC)

Use: IRS21956SPBF is a high-speed, high-voltage gate driver IC designed for driving MOSFETs and IGBTs in various power applications.

Characteristics: - High-speed switching capability - High voltage rating - Low power consumption - Compact package size - Robust protection features

Package: IRS21956SPBF is available in a small outline integrated circuit (SOIC) package.

Essence: The essence of IRS21956SPBF lies in its ability to efficiently drive power transistors, enabling reliable and precise control of power electronics systems.

Packaging/Quantity: Each package of IRS21956SPBF contains one IC.

Specifications

• Supply Voltage Range: 10V to 20V
• Output Current: ±2.5A
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay: 120ns (typical)
• Maximum Duty Cycle: 50%
• Undervoltage Lockout (UVLO) Threshold: 8.3V (typical)

Pin Configuration

The pin configuration of IRS21956SPBF is as follows:

1. VCC: Power supply input
2. HO: High-side gate driver output
3. LO: Low-side gate driver output
4. COM: Common ground
5. SD: Shutdown input
6. VB: Bootstrap supply input
7. VS: High-side floating supply return
8. HS: High-side floating supply

Functional Features

• High-speed gate drive capability enables fast switching of power transistors.
• Integrated bootstrap diode simplifies the design of the high-side driver circuit.
• UVLO protection prevents improper operation during low voltage conditions.
• Overcurrent protection safeguards against excessive current flow.
• Shoot-through protection prevents simultaneous conduction of high-side and low-side power transistors.

Advantages

• Efficiently drives MOSFETs and IGBTs in power applications.
• Compact package size allows for space-saving designs.
• High-speed switching capability enables improved system performance.
• Robust protection features enhance the reliability of power electronics systems.

Disadvantages

• Limited output current may not be suitable for high-power applications.
• Requires external components for proper operation.
• Not compatible with all types of power transistors.

Working Principles

IRS21956SPBF operates by receiving control signals from a microcontroller or other control circuitry. It amplifies these signals to drive the gate of the power transistor, controlling its on/off state. The integrated bootstrap diode generates the necessary voltage for driving the high-side power transistor.

Application Field Plans

IRS21956SPBF finds applications in various power electronics systems, including: - Motor drives - Solar inverters - Uninterruptible power supplies (UPS) - Switch-mode power supplies (SMPS) - Industrial automation systems

Alternative Models

1. IRS2186SPBF: Similar functionality, lower output current rating.
2. IRS2110SPBF: Higher output current rating, additional fault protection features.
3. IRS2153SPBF: Integrated half-bridge driver with internal oscillator.

These alternative models provide similar functionality to IRS21956SPBF and can be considered based on specific application requirements.

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