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UCC3808AD-1
Product Overview
Category
UCC3808AD-1 belongs to the category of integrated circuits (ICs).
Use
This product is commonly used in power management applications.
Characteristics
- Low-power, high-performance voltage mode PWM controller
- Designed for off-line and DC-to-DC converter applications
- Provides precise control of output voltage and current
- Offers protection features such as overvoltage and overcurrent protection
Package
UCC3808AD-1 is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.
Essence
The essence of UCC3808AD-1 lies in its ability to efficiently regulate and control power in various electronic devices.
Packaging/Quantity
This product is typically sold in reels containing a quantity of 2500 units per reel.
Specifications
- Input Voltage Range: 7V to 25V
- Output Voltage Range: 0.8V to 5.5V
- Operating Temperature Range: -40°C to +85°C
- Maximum Duty Cycle: 100%
- Switching Frequency: 50kHz to 1MHz
- Quiescent Current: 2.5mA
Detailed Pin Configuration
- COMP: Compensation pin
- CS: Current sense input pin
- GND: Ground pin
- VREF: Reference voltage output pin
- FB: Feedback input pin
- RT/CT: Timing resistor/capacitor connection pin
- OUT: Output pin
- VCC: Supply voltage input pin
Functional Features
- Voltage mode control with adjustable frequency and duty cycle
- Soft-start function for controlled startup
- Overvoltage protection (OVP) and undervoltage lockout (UVLO)
- Overcurrent protection (OCP) with adjustable threshold
- Error amplifier for precise voltage regulation
Advantages and Disadvantages
Advantages
- High-performance power management solution
- Wide input voltage range allows for versatile applications
- Precise control of output voltage and current
- Protection features enhance system reliability
Disadvantages
- Limited maximum duty cycle may restrict certain applications
- Requires external components for complete functionality
- Sensitive to noise and voltage fluctuations
Working Principles
UCC3808AD-1 operates on the principle of voltage mode control. It compares the feedback voltage (FB) with a reference voltage (VREF) to generate an error signal. This error signal is then amplified and used to adjust the duty cycle of the PWM (Pulse Width Modulation) signal. By controlling the duty cycle, the output voltage can be regulated according to the desired setpoint.
Detailed Application Field Plans
UCC3808AD-1 finds extensive use in various power management applications, including but not limited to: - Switch-mode power supplies (SMPS) - Battery chargers - LED drivers - DC-to-DC converters - Industrial automation systems
Detailed and Complete Alternative Models
- UCC3808A: Similar to UCC3808AD-1, but without the overvoltage protection feature.
- UCC3808D-1: Improved version with lower quiescent current and wider operating temperature range.
- UCC3808E: Enhanced model with additional fault protection features.
These alternative models offer similar functionality and can be considered as substitutes for UCC3808AD-1 depending on specific requirements.
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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van UCC3808AD-1 in technische oplossingen
Sure! Here are 10 common questions and answers related to the application of UCC3808AD-1 in technical solutions:
Q1: What is UCC3808AD-1? A1: UCC3808AD-1 is a high-performance, low-power current mode PWM controller used in various power supply applications.
Q2: What are the key features of UCC3808AD-1? A2: Some key features include low start-up current, adjustable switching frequency, cycle-by-cycle current limiting, and built-in soft-start.
Q3: What is the typical operating voltage range for UCC3808AD-1? A3: The typical operating voltage range is between 4.5V and 12V.
Q4: Can UCC3808AD-1 be used in both buck and boost converter topologies? A4: Yes, UCC3808AD-1 can be used in both buck and boost converter topologies.
Q5: How does UCC3808AD-1 provide overcurrent protection? A5: UCC3808AD-1 provides overcurrent protection through its cycle-by-cycle current limiting feature.
Q6: Can UCC3808AD-1 operate at high temperatures? A6: Yes, UCC3808AD-1 has a wide temperature range and can operate at high temperatures up to 125°C.
Q7: Is UCC3808AD-1 suitable for battery-powered applications? A7: Yes, UCC3808AD-1 is suitable for battery-powered applications due to its low start-up current and low-power operation.
Q8: Does UCC3808AD-1 have a built-in soft-start feature? A8: Yes, UCC3808AD-1 has a built-in soft-start feature that helps reduce inrush current during start-up.
Q9: Can UCC3808AD-1 be used in automotive applications? A9: Yes, UCC3808AD-1 is suitable for automotive applications as it meets the necessary requirements and has a wide temperature range.
Q10: What are some typical applications of UCC3808AD-1? A10: Some typical applications include power supplies for industrial equipment, battery chargers, LED lighting, and automotive electronics.
Please note that these answers are general and may vary depending on specific design considerations and requirements.