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UCC28070DWR
Product Overview
Category
UCC28070DWR belongs to the category of integrated circuits (ICs).
Use
This IC is commonly used in power management applications.
Characteristics
- UCC28070DWR is a high-performance, current-mode PWM controller.
- It operates with a wide input voltage range and is suitable for various power supply designs.
- The IC offers excellent line and load regulation, making it ideal for demanding applications.
- It provides protection features such as overvoltage, undervoltage, and overcurrent protection.
Package
UCC28070DWR is available in a standard SOIC-16 package.
Essence
The essence of UCC28070DWR lies in its ability to efficiently regulate and control power in various applications.
Packaging/Quantity
UCC28070DWR is typically packaged in reels containing 2500 units.
Specifications
- Input Voltage Range: 8V to 18V
- Output Voltage Range: 0.8V to 5.1V
- Operating Temperature Range: -40°C to 125°C
- Maximum Duty Cycle: 100%
- Switching Frequency: 100kHz to 1MHz
- Output Current: Up to 2A
Detailed Pin Configuration
- COMP: Compensation pin
- FB: Feedback pin
- CS: Current sense pin
- VREF: Reference voltage pin
- GND: Ground pin
- VDD: Power supply pin
- RT/CT: Timing resistor/capacitor pin
- SYNC: Synchronization pin
- SS/TR: Soft-start/Tracking pin
- EN/UVLO: Enable/Undervoltage lockout pin
- VSENSE: Voltage sense pin
- ISENSE: Current sense pin
- VOUT: Output voltage pin
- DRVH: High-side gate driver output pin
- DRVL: Low-side gate driver output pin
- VCC: Supply voltage pin
Functional Features
- Current-mode control with adjustable frequency and duty cycle.
- Overvoltage protection to safeguard the power supply and connected devices.
- Undervoltage lockout for reliable operation under low voltage conditions.
- Soft-start function to prevent excessive inrush current during startup.
- Synchronization capability for multi-phase operation.
- Error amplifier for precise regulation and stability.
Advantages and Disadvantages
Advantages
- Wide input voltage range allows for versatile applications.
- Excellent line and load regulation ensure stable power delivery.
- Comprehensive protection features enhance system reliability.
- Adjustable frequency and duty cycle provide flexibility in design.
- Synchronization capability enables multi-phase operation.
Disadvantages
- Limited output current may not be suitable for high-power applications.
- Requires external components for complete power supply design.
- Relatively higher cost compared to some other PWM controllers.
Working Principles
UCC28070DWR operates on the principle of current-mode control, where the current flowing through the power switch is sensed and used to regulate the output voltage. It compares the sensed current with a reference voltage and adjusts the duty cycle accordingly to maintain the desired output voltage. The IC also incorporates various protection mechanisms to ensure safe operation and prevent damage to the power supply and connected devices.
Detailed Application Field Plans
UCC28070DWR finds extensive use in various power management applications, including but not limited to: - Switching power supplies - DC-DC converters - LED drivers - Battery chargers - Industrial automation systems - Telecommunications equipment - Automotive electronics
Detailed and Complete Alternative Models
- UCC28070DW: Similar to UCC28070DWR, but available in a standard SOIC-16 package without the reel packaging.
- UCC28070PWP: Similar to UCC28070DWR, but available in a TSSOP-16 package.
- UCC28070EVM-001: Evaluation module for UCC28070 series, providing a complete platform for testing and prototyping.
These alternative models offer similar functionality and can be considered as substitutes based on specific design requirements.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací UCC28070DWR v technických řešeních
Sure! Here are 10 common questions and answers related to the application of UCC28070DWR in technical solutions:
Q: What is UCC28070DWR? A: UCC28070DWR is a high-performance, current-mode PWM controller designed for offline and DC-to-DC power supplies.
Q: What are the key features of UCC28070DWR? A: Some key features include integrated high-voltage startup, cycle-by-cycle current limiting, adjustable switching frequency, and soft-start functionality.
Q: How can I use UCC28070DWR in an offline power supply design? A: UCC28070DWR can be used as the primary controller in an offline power supply design, providing control over the power conversion process.
Q: Can UCC28070DWR be used in DC-to-DC power supply designs as well? A: Yes, UCC28070DWR is versatile and can be used in both offline and DC-to-DC power supply designs.
Q: What is the maximum input voltage that UCC28070DWR can handle? A: UCC28070DWR can handle input voltages up to 600V, making it suitable for a wide range of applications.
Q: How does UCC28070DWR ensure safe operation? A: UCC28070DWR incorporates various protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown to ensure safe operation.
Q: Can UCC28070DWR support multiple output voltages? A: Yes, UCC28070DWR can support multiple output voltages by using external components such as transformers and feedback circuits.
Q: Is UCC28070DWR suitable for high-power applications? A: Yes, UCC28070DWR is designed to handle high-power applications and can be used in designs with power levels ranging from a few watts to several kilowatts.
Q: Are there any application notes or reference designs available for UCC28070DWR? A: Yes, Texas Instruments provides application notes and reference designs that can help you understand and implement UCC28070DWR in your technical solutions.
Q: Where can I find more information about UCC28070DWR? A: You can find detailed datasheets, application notes, and other resources on the official Texas Instruments website or by contacting their technical support team.