IR21834STR

Product Overview

Category: Integrated Circuit (IC)

Use: The IR21834STR is a high-performance, half-bridge gate driver IC designed for use in motor control and power conversion applications. It provides the necessary drive signals for controlling the high-side and low-side power MOSFETs in a half-bridge configuration.

Characteristics: - High voltage capability - Fast switching speed - Low power consumption - Built-in protection features - Compact package size

Package: The IR21834STR is available in a small outline package (SOP) with 16 pins.

Essence: This IC serves as a crucial component in motor control systems and power converters, enabling efficient and precise control of power MOSFETs.

Packaging/Quantity: The IR21834STR is typically sold in reels or tubes, with each reel/tube containing a specific quantity of ICs. Please refer to the manufacturer's specifications for detailed packaging and quantity information.

Specifications

• Supply Voltage: 10V - 20V
• Output Current: 200mA
• Operating Temperature Range: -40°C to +125°C
• Input Logic Compatibility: CMOS, TTL
• Propagation Delay Time: < 100ns
• Rise/Fall Time: < 35ns

Pin Configuration

The IR21834STR features a 16-pin configuration. The pinout diagram is as follows:

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| | | 1 2 3 4 | | | | 5 6 7 8 | | | | 9 10 11 12 | | | | 13 14 15 16 | |_______________| ```

Pin descriptions: 1. VCC - Power supply voltage 2. HO - High-side gate driver output 3. LO - Low-side gate driver output 4. VB - Bootstrap supply voltage 5. VSS - Ground reference 6. SD - Shutdown input 7. VS - Sense voltage input 8. NC - No connection 9. NC - No connection 10. NC - No connection 11. NC - No connection 12. NC - No connection 13. NC - No connection 14. NC - No connection 15. NC - No connection 16. NC - No connection

Functional Features

• High voltage level shifting capability
• Integrated bootstrap diode for high-side gate drive
• Undervoltage lockout protection
• Overcurrent shutdown protection
• Shoot-through prevention logic
• Fault reporting output
• Adjustable deadtime control

Advantages and Disadvantages

Advantages: - High-performance gate driver for motor control and power conversion applications - Compact package size allows for space-efficient designs - Built-in protection features enhance system reliability - Fast switching speed enables efficient power conversion

Disadvantages: - Limited output current may not be suitable for high-power applications - Requires external components for proper operation - Higher cost compared to simpler gate driver solutions

Working Principles

The IR21834STR operates by receiving input signals from a microcontroller or other control circuitry. It generates the necessary drive signals to control the high-side and low-side power MOSFETs in a half-bridge configuration. By providing precise timing and voltage levels, it ensures efficient switching of the MOSFETs, enabling smooth motor control and power conversion.

Detailed Application Field Plans

The IR21834STR finds extensive use in various applications, including: - Motor control systems (e.g., electric vehicles, robotics, industrial automation) - Power converters (e.g., inverters, UPS systems, solar inverters) - Switching power supplies - LED lighting systems

Detailed and Complete Alternative Models

1. IR21834S: Similar to IR21834STR but in a different package (DIP)
2. IR21834M: Enhanced version with higher output current capability
3. IR21834L: Low-power variant with reduced power consumption
4. IR21834X: Extended temperature range version for harsh environments

These alternative models offer similar functionality with slight variations to cater to specific application requirements.

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