UCC27200DR

Overview

Category: Integrated Circuits (ICs)

Use: Power Management IC

Characteristics: - High-speed gate driver - Dual-channel synchronous rectifier controller - Low-side and high-side gate drivers - Wide input voltage range - Adjustable dead time control - Adaptive shoot-through protection - Programmable undervoltage lockout (UVLO) - Fault detection and reporting - Thermal shutdown protection

Package: SOIC-8

Essence: The UCC27200DR is a high-speed gate driver IC designed for power management applications. It provides dual-channel synchronous rectifier control and low-side and high-side gate drivers.

Packaging/Quantity: The UCC27200DR is available in a standard SOIC-8 package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 4.5V to 18V
• Output Voltage Range: 0V to VDD
• Maximum Supply Current: 2.5A
• Operating Temperature Range: -40°C to +125°C
• Rise/Fall Time: 10ns (typical)
• Propagation Delay: 35ns (typical)
• Dead Time Range: 20ns to 1000ns

Pin Configuration

The UCC27200DR has the following pin configuration:

```

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| | | GND | |___________| | | | VDD | |___________| | | | HO | |___________| | | | LO | |___________| | | | HS | |___________| | | | LS | |___________| ```

Functional Features

1. High-Speed Gate Driver: The UCC27200DR is capable of driving power MOSFETs and IGBTs at high switching speeds, enabling efficient power management.

2. Dual-Channel Synchronous Rectifier Control: It provides synchronous rectification control for both low-side and high-side channels, improving overall system efficiency.

3. Low-Side and High-Side Gate Drivers: The IC includes dedicated gate drivers for both the low-side and high-side power switches, ensuring precise control and minimizing power losses.

4. Wide Input Voltage Range: The UCC27200DR can operate with input voltages ranging from 4.5V to 18V, making it suitable for a wide range of power management applications.

5. Adjustable Dead Time Control: The dead time between the high-side and low-side switches can be adjusted to optimize system performance and prevent shoot-through current.

6. Adaptive Shoot-Through Protection: The IC incorporates adaptive shoot-through protection to prevent simultaneous conduction of the high-side and low-side switches, enhancing system reliability.

7. Programmable Undervoltage Lockout (UVLO): The UVLO feature allows users to set the undervoltage threshold, ensuring proper operation under varying input voltage conditions.

8. Fault Detection and Reporting: The UCC27200DR includes fault detection circuitry that monitors various parameters such as overcurrent, overvoltage, and overtemperature conditions. Fault status can be reported through an external pin or monitored internally.

9. Thermal Shutdown Protection: In case of excessive temperature, the IC automatically shuts down to protect itself and the connected power devices from damage.

Advantages

• High-speed gate driver enables efficient power management.
• Dual-channel synchronous rectifier control improves system efficiency.
• Dedicated low-side and high-side gate drivers ensure precise control.
• Wide input voltage range allows for versatile applications.
• Adjustable dead time control optimizes system performance.
• Adaptive shoot-through protection enhances system reliability.
• Programmable undervoltage lockout ensures proper operation under varying conditions.
• Fault detection and reporting enhance system safety.
• Thermal shutdown protection protects the IC and connected devices from damage.

Disadvantages

• Limited to SOIC-8 package, which may not be suitable for all applications requiring higher pin counts or specific form factors.
• Requires external components for complete power management solutions, adding complexity to the design.

Working Principles

The UCC27200DR operates by receiving control signals from a microcontroller or other control circuitry. It generates high-speed gate drive signals to control the switching of power MOSFETs or IGBTs in power management applications. The dual-channel synchronous rectifier control ensures efficient power transfer, while the low-side and high-side gate drivers provide precise control over the power switches. The IC incorporates various protection features such as adaptive shoot-through protection, undervoltage lockout, fault detection, and thermal shutdown to ensure safe and reliable operation.

Application Field Plans

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