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UCC2808D-2
Product Category
The UCC2808D-2 belongs to the category of voltage mode PWM controllers.
Basic Information Overview
- Use: The UCC2808D-2 is used for controlling power in applications such as DC-DC converters, battery chargers, and LED drivers.
- Characteristics: It features low start-up current, high-precision reference, and low operating current.
- Package: The UCC2808D-2 comes in an 8-pin SOIC package.
- Essence: This device serves as a versatile controller for various power management applications.
- Packaging/Quantity: It is typically available in reels with quantities varying based on supplier and order size.
Specifications
- Input Voltage: 6V to 12V
- Output Voltage: Up to 28V
- Operating Temperature: -40°C to 85°C
- Frequency Range: 100kHz to 1MHz
Detailed Pin Configuration
The UCC2808D-2 has the following pin configuration: 1. VREF 2. COMP 3. CS 4. GND 5. RT/CT 6. OUT 7. UVLO 8. VCC
Functional Features
- Low Start-Up Current: Enables efficient power management even at low input voltages.
- High-Precision Reference: Ensures accurate voltage regulation in various applications.
- Low Operating Current: Contributes to overall energy efficiency and reduced power consumption.
Advantages and Disadvantages
- Advantages:
- Versatile application in various power management scenarios.
- High precision and efficiency in voltage regulation.
- Disadvantages:
- Limited input voltage range compared to some other controllers.
- Sensitive to external noise in certain operating conditions.
Working Principles
The UCC2808D-2 operates based on voltage mode control, where the output voltage is compared to a reference voltage to regulate the duty cycle of the PWM signal, thereby controlling the power delivered to the load.
Detailed Application Field Plans
The UCC2808D-2 finds extensive use in: - DC-DC converters for portable devices and industrial equipment. - Battery chargers for automotive and consumer electronics. - LED drivers for lighting applications.
Detailed and Complete Alternative Models
Some alternative models to the UCC2808D-2 include: - LM5117 from Texas Instruments - LT3757 from Analog Devices - IR1167 from Infineon Technologies
This diverse range of alternatives provides options for different design requirements and preferences.
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What is the UCC2808D-2?
- The UCC2808D-2 is a low-power, low-voltage current-mode PWM controller designed for use in applications such as DC-DC converters and LED drivers.
What is the input voltage range of UCC2808D-2?
- The UCC2808D-2 has an input voltage range of 4.5V to 28V, making it suitable for a wide variety of power supply designs.
What is the typical output current capability of UCC2808D-2?
- The UCC2808D-2 can typically handle output currents up to 100mA, making it suitable for driving small to medium loads.
What are the key features of UCC2808D-2?
- Some key features of the UCC2808D-2 include low start-up current, internal soft start, cycle-by-cycle current limiting, and a wide operating temperature range.
How does UCC2808D-2 help in improving power supply efficiency?
- The UCC2808D-2's current-mode control architecture helps improve power supply efficiency by providing better transient response and easier loop compensation.
Can UCC2808D-2 be used in LED driver applications?
- Yes, the UCC2808D-2 is suitable for LED driver applications due to its low-power operation and current-mode control, which can help regulate LED currents effectively.
What protection features does UCC2808D-2 offer?
- The UCC2808D-2 provides protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown to ensure safe and reliable operation.
Is UCC2808D-2 suitable for battery-powered applications?
- Yes, the UCC2808D-2's low start-up current and wide input voltage range make it suitable for battery-powered applications where energy efficiency is crucial.
What are the typical applications of UCC2808D-2?
- Typical applications of the UCC2808D-2 include isolated and non-isolated power supplies, LED lighting, and battery chargers.
Where can I find detailed technical information about UCC2808D-2?
- Detailed technical information about the UCC2808D-2 can be found in the datasheet provided by the manufacturer or on their official website.