UCC2915DPTRG4

Overview

Category: Integrated Circuit (IC)

Use: Voltage Mode PWM Controller

Characteristics: - High-performance voltage mode pulse-width modulation (PWM) controller - Designed for use in switch-mode power supplies (SMPS) - Provides precise control over the output voltage and current regulation - Offers protection features such as overvoltage, undervoltage, and overcurrent protection

Package: TSSOP-14

Essence: The UCC2915DPTRG4 is a voltage mode PWM controller that plays a crucial role in regulating the output voltage and current of switch-mode power supplies. It offers high performance and various protection features to ensure stable and reliable power supply operation.

Packaging/Quantity: The UCC2915DPTRG4 is available in a TSSOP-14 package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 8V to 16V
• Output Voltage Range: 0V to 5V
• Operating Temperature Range: -40°C to 85°C
• Maximum Duty Cycle: 100%
• Frequency Range: 50kHz to 1MHz
• Quiescent Current: 2.5mA

Pin Configuration

The UCC2915DPTRG4 has the following pin configuration:

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| | --| VREF | --| COMP | --| FB | --| CS | --| GND | --| RT/CT | --| CT/RT | --| SYNC | --| SS/TRIP | --| VDD | --| OUT | --| NC | --| NC | |___________| ```

Functional Features

1. Voltage Mode Control: The UCC2915DPTRG4 utilizes voltage mode control to regulate the output voltage of switch-mode power supplies. This allows for precise and efficient control over the power supply operation.

2. Protection Features: The IC incorporates various protection features such as overvoltage, undervoltage, and overcurrent protection. These safeguards help prevent damage to the power supply and connected devices in case of abnormal operating conditions.

3. Wide Input Voltage Range: The UCC2915DPTRG4 can operate within a wide input voltage range of 8V to 16V, making it suitable for a variety of applications.

4. High Frequency Operation: With a frequency range of 50kHz to 1MHz, the IC enables high-frequency switching, resulting in smaller and more efficient power supply designs.

Advantages

• Precise voltage and current regulation
• Robust protection features
• Wide input voltage range
• High-frequency operation for efficient power supply design

Disadvantages

• Limited pin configuration options
• Requires careful consideration of external components for optimal performance

Working Principles

The UCC2915DPTRG4 operates based on the voltage mode control technique. It compares the feedback voltage (FB) with a reference voltage (VREF) to generate an error signal. This error signal is then used to adjust the duty cycle of the PWM signal, which controls the power switch in the switch-mode power supply. By continuously monitoring and adjusting the duty cycle, the IC ensures that the output voltage remains stable and within the desired range.

Application Field Plans

The UCC2915DPTRG4 is commonly used in various applications, including:

1. Power Supplies: It is widely employed in switch-mode power supplies used in computer systems, telecommunication equipment, industrial machinery, and consumer electronics.

2. LED Lighting: The IC finds application in LED lighting systems, where it helps regulate the power supply to ensure consistent and efficient operation of LED lights.

3. Motor Control: It can be utilized in motor control circuits to regulate the power supply for motors, enabling precise speed and torque control.

Alternative Models

1. UCC2917DPTRG4: This IC offers similar functionality but with additional features such as adjustable soft-start and synchronization capabilities.

2. UCC3813D-5: A voltage mode PWM controller with a different pin configuration but suitable for similar applications.

3. UC3843AN: Another popular voltage mode PWM controller with a wide input voltage range and comprehensive protection features.

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

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