UCC27221PWP

Product Overview

Category

UCC27221PWP belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

• High efficiency
• Low power consumption
• Fast switching speed
• Wide operating voltage range

Package

UCC27221PWP is available in a small outline package (SOP) with a wide power pad (WSON).

Essence

The essence of UCC27221PWP lies in its ability to efficiently control and switch power in various electronic devices.

Packaging/Quantity

This product is typically packaged in reels, with each reel containing a specific quantity of UCC27221PWP ICs.

Specifications

• Input Voltage Range: 4.5V to 18V
• Output Voltage Range: 0V to 18V
• Maximum Output Current: 4A
• Operating Temperature Range: -40°C to 125°C
• Switching Frequency: Up to 2MHz
• Number of Pins: 20

Detailed Pin Configuration

1. VDD: Power supply input
2. GND: Ground reference
3. EN: Enable pin for controlling the IC's operation
4. VIN: Input voltage
5. BOOT: Bootstrap capacitor connection
6. HS: High-side gate driver output
7. LS: Low-side gate driver output
8. PGND: Power ground
9. VBST: Bootstrap supply voltage
10. VREF: Reference voltage output
11. COMP: Compensation pin for feedback control loop
12. FB: Feedback voltage input
13. SS: Soft-start pin for controlling the startup behavior
14. RT: Timing resistor connection for setting switching frequency
15. CT: Timing capacitor connection for setting switching frequency
16. UVLO: Undervoltage lockout pin
17. OVLO: Overvoltage lockout pin
18. PG: Power good output
19. NC: No connection
20. NC: No connection

Functional Features

• High-speed gate drivers for efficient power switching
• Integrated protection features such as undervoltage and overvoltage lockout
• Adjustable soft-start functionality for controlled startup behavior
• Power good output for monitoring the status of the IC
• Wide operating voltage range for versatile applications

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption
• Fast switching speed improves overall system performance
• Wide operating voltage range allows for flexibility in different applications

Disadvantages

• Limited maximum output current may restrict usage in high-power applications
• Complex pin configuration requires careful attention during circuit design

Working Principles

UCC27221PWP operates by receiving an input voltage (VIN) and generating high-side (HS) and low-side (LS) gate driver outputs. These outputs control the switching of power devices, enabling efficient power management. The IC incorporates various protection features, such as undervoltage and overvoltage lockout, to ensure safe operation.

Detailed Application Field Plans

UCC27221PWP finds application in various fields, including: 1. Switching power supplies 2. Motor drives 3. LED lighting systems 4. Battery charging circuits 5. Industrial automation

Detailed and Complete Alternative Models

1. UCC27222PWP
2. UCC27223PWP
3. UCC27224PWP
4. UCC27225PWP
5. UCC27226PWP

These alternative models offer similar functionality and characteristics to UCC27221PWP, providing options for different design requirements.

Word count: 512 words