UCC2895PW

Overview

Category: Integrated Circuit (IC)

Use: Power Management Controller

Characteristics: - High-performance power management controller - Designed for use in switch-mode power supplies - Provides control and protection functions - Enables efficient power conversion

Package: PowerPAD SOIC (Small Outline Integrated Circuit)

Essence: UCC2895PW is a power management controller IC that offers advanced control and protection features for switch-mode power supplies.

Packaging/Quantity: The UCC2895PW is available in a PowerPAD SOIC package. It is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

The UCC2895PW has the following specifications:

• Input Voltage Range: 4.5V to 15V
• Operating Temperature Range: -40°C to 125°C
• Output Voltage Range: 0V to 5.5V
• Maximum Output Current: 1A
• Switching Frequency Range: 50kHz to 1MHz
• Control Method: Voltage Mode Control
• Protection Features: Overvoltage Protection, Undervoltage Lockout, Overcurrent Protection

Pin Configuration

The UCC2895PW has a total of 16 pins. The detailed pin configuration is as follows:

1. VREF: Reference Voltage Output
2. COMP: Error Amplifier Output
3. FB: Feedback Input
4. RT/CT: Timing Components Connection
5. CT: Timing Capacitor Connection
6. RT: Timing Resistor Connection
7. CS: Current Sense Input
8. SS/TR: Soft-Start/Tracking Input
9. GND: Ground
10. VCC: Supply Voltage Input
11. SYNC: Synchronization Input
12. EN/UVLO: Enable/Undervoltage Lockout Input
13. VSENSE: Voltage Sense Input
14. ISENSE: Current Sense Output
15. DRVH: High-Side Gate Driver Output
16. DRVL: Low-Side Gate Driver Output

Functional Features

The UCC2895PW offers the following functional features:

• Voltage Mode Control for precise regulation of output voltage
• Error Amplifier with adjustable gain and compensation for stability
• Soft-Start function to limit inrush current during startup
• Synchronization input for phase-locking multiple power supplies
• Comprehensive protection features for safe operation

Advantages and Disadvantages

Advantages: - High-performance power management controller - Wide input voltage range - Efficient power conversion - Comprehensive protection features

Disadvantages: - Limited maximum output current (1A) - Requires external timing components for operation

Working Principles

The UCC2895PW operates based on the voltage mode control method. It compares the feedback voltage from the output with a reference voltage to generate an error signal. This error signal is amplified and used to adjust the duty cycle of the power switch, ensuring precise regulation of the output voltage.

The IC also incorporates various protection features such as overvoltage protection, undervoltage lockout, and overcurrent protection to safeguard the power supply and connected components.

Application Field Plans

The UCC2895PW is commonly used in various applications, including:

1. Switch-mode power supplies for industrial equipment
2. Power converters for telecommunications systems
3. Battery charging circuits
4. LED lighting drivers
5. Motor control systems

Alternative Models

Here are some alternative models that offer similar functionality to the UCC2895PW:

1. LM5116 - High-Voltage Synchronous Buck Controller
2. LT3845 - High-Voltage Step-Down DC/DC Controller
3. MAX668 - High-Efficiency Step-Down Controller
4. TPS5430 - Wide Input Voltage Range Buck Converter

These alternative models can be considered based on specific requirements and design considerations.

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