UCC27201ADPRT

Product Overview

Category

UCC27201ADPRT belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is primarily used in power electronics systems to control and drive high-side and low-side switches in a synchronous buck or half-bridge configuration.

Characteristics

• High efficiency: The UCC27201ADPRT offers excellent efficiency due to its low on-resistance and fast switching capabilities.
• Fast response time: It features a high-speed gate driver with a propagation delay of only a few nanoseconds.
• Protection features: The IC incorporates various protection mechanisms such as under-voltage lockout (UVLO), over-current protection, and thermal shutdown.
• Wide operating voltage range: It can operate within a wide voltage range, making it suitable for various power supply designs.
• Compact package: The UCC27201ADPRT is available in a small and thermally enhanced package, allowing for efficient heat dissipation.

Package and Quantity

The UCC27201ADPRT is packaged in a 14-pin plastic dual in-line package (PDIP). It is typically sold in reels containing 250 units per reel.

Specifications

• Supply voltage range: 4.5V to 18V
• Output current capability: ±4A peak
• Operating temperature range: -40°C to 125°C
• Rise and fall times: <10ns
• UVLO threshold: 3.3V
• Over-current protection threshold: Adjustable

Pin Configuration

The UCC27201ADPRT has the following pin configuration:

1. VDD: Power supply input
2. GND: Ground reference
3. HO: High-side gate driver output
4. LO: Low-side gate driver output
5. SD: Shutdown input
6. VSENSE: Current sense input
7. VREF: Reference voltage output
8. COMP: Compensation pin for loop stability
9. FB: Feedback input for voltage regulation
10. RT/CT: Timing components for adjustable over-current protection
11. CT: Timing capacitor for adjustable dead time
12. RT: Timing resistor for adjustable dead time
13. VCC: Logic supply voltage
14. NC: No connection

Functional Features

• High-side and low-side gate drivers: The UCC27201ADPRT provides independent gate drivers for both high-side and low-side switches, enabling efficient switching control.
• Adjustable over-current protection: The IC allows users to adjust the over-current protection threshold by selecting appropriate timing components.
• Shutdown capability: The SD pin can be used to disable the device, reducing power consumption during standby or fault conditions.
• Voltage regulation: The FB pin enables feedback control for precise voltage regulation in power supply applications.

Advantages and Disadvantages

Advantages

• High efficiency and fast response time contribute to improved power conversion performance.
• Compact package design facilitates space-saving and efficient heat dissipation.
• Adjustable over-current protection enhances flexibility in different system designs.
• Shutdown capability helps reduce power consumption during idle periods.

Disadvantages

• Limited output current capability may not be suitable for high-power applications.
• The 14-pin PDIP package may not be compatible with certain surface-mount assembly processes.

Working Principles

The UCC27201ADPRT operates based on a bootstrap technique, where a bootstrap capacitor is used to provide the necessary gate drive voltage for the high-side switch. It utilizes a combination of internal circuitry and external timing components to control the switching behavior of the power switches. By driving the gates of the high-side and low-side switches appropriately, it ensures efficient power transfer and regulation in power electronics systems.

Detailed Application Field Plans

The UCC27201ADPRT is widely used in various power management applications, including but not limited to: - Switching power supplies - Motor drives - LED lighting systems - Solar inverters - Battery charging systems

Detailed and Complete Alternative Models

1. UCC27200ADPRT: Similar to UCC27201ADPRT, but with a different pin configuration.
2. UCC27202ADPRT: Higher output current capability compared to UCC27201ADPRT.
3. UCC27203ADPRT: Enhanced protection features and wider operating temperature range.

These alternative models offer similar functionality and can be considered as substitutes depending on specific application requirements.

In conclusion, the UCC27201ADPRT is an integrated circuit designed for power management applications. It offers high efficiency, fast response time, and various protection features. With its compact package and adjustable over-current protection, it finds applications in diverse fields such as switching power supplies, motor drives, and LED lighting systems. Alternative models like UCC27200ADPRT, UCC27202ADPRT, and U