UCC38503DWTR
Overview
Category: Integrated Circuit (IC)
Use: Power Management IC
Characteristics: - High efficiency - Low power consumption - Wide input voltage range - Multiple protection features
Package: SOIC-8
Essence: UCC38503DWTR is a power management IC designed for efficient power conversion and management in various electronic devices.
Packaging/Quantity: The UCC38503DWTR is available in a tape and reel packaging, with 2500 units per reel.
Specifications
- Input Voltage Range: 4.5V to 60V
- Output Voltage Range: 0.8V to 55V
- Maximum Output Current: 3A
- Switching Frequency: 500kHz
- Operating Temperature Range: -40°C to +125°C
Pin Configuration
The UCC38503DWTR has the following pin configuration:
- VIN: Input voltage pin
- GND: Ground pin
- FB: Feedback pin for output voltage regulation
- EN: Enable pin for turning the IC on/off
- SS/TR: Soft-start/Tracking pin for controlling the startup behavior
- COMP: Compensation pin for stability control
- VOUT: Output voltage pin
- SW: Switching pin for connecting the external inductor
Functional Features
- Wide input voltage range allows for versatile applications
- High efficiency power conversion minimizes energy loss
- Integrated protection features such as overvoltage, undervoltage, and overcurrent protection ensure safe operation
- Soft-start function enables controlled startup and reduces inrush current
- Adjustable compensation provides stability in different operating conditions
Advantages
- High efficiency results in reduced power consumption and heat generation
- Wide input voltage range makes it suitable for various power supply designs
- Integrated protection features enhance system reliability and safety
- Compact SOIC-8 package allows for space-saving designs
- Adjustable compensation enables stability optimization
Disadvantages
- Limited maximum output current of 3A may not be sufficient for high-power applications
- The SOIC-8 package may not be suitable for all PCB layouts or assembly processes
Working Principles
The UCC38503DWTR operates as a step-down (buck) converter, converting a higher input voltage to a lower output voltage. It utilizes a switching regulator topology to achieve high efficiency power conversion. The IC controls the switching of an external inductor to regulate the output voltage based on the feedback received from the FB pin. The soft-start function gradually ramps up the output voltage during startup to prevent excessive inrush current.
Application Field Plans
The UCC38503DWTR is commonly used in various applications, including but not limited to: - Industrial automation systems - Telecommunications equipment - Automotive electronics - Power supplies for consumer electronics - LED lighting systems
Alternative Models
- LM2596S-ADJ: Similar buck converter IC with adjustable output voltage and higher maximum output current.
- TPS5430DDAR: Buck converter IC with integrated MOSFETs for higher power applications.
- LT8614EMSE#PBF: High-efficiency synchronous buck converter IC with wide input voltage range and adjustable output voltage.
These alternative models offer similar functionality and can be considered as substitutes for the UCC38503DWTR based on specific application requirements.
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Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät UCC38503DWTR :n soveltamiseen teknisissä ratkaisuissa
Sure! Here are 10 common questions and answers related to the application of UCC38503DWTR in technical solutions:
Q: What is UCC38503DWTR? A: UCC38503DWTR is a high-performance synchronous buck controller IC used in power management applications.
Q: What is the input voltage range supported by UCC38503DWTR? A: UCC38503DWTR supports an input voltage range from 4.5V to 60V.
Q: What is the output voltage range that can be achieved using UCC38503DWTR? A: The output voltage range achievable with UCC38503DWTR is typically from 0.8V to 55V.
Q: What is the maximum output current that UCC38503DWTR can handle? A: UCC38503DWTR can handle a maximum output current of up to 25A.
Q: Can UCC38503DWTR operate in a wide temperature range? A: Yes, UCC38503DWTR is designed to operate in a wide temperature range, typically from -40°C to 125°C.
Q: Does UCC38503DWTR support adjustable switching frequency? A: Yes, UCC38503DWTR supports adjustable switching frequency ranging from 100kHz to 2MHz.
Q: What protection features does UCC38503DWTR offer? A: UCC38503DWTR offers various protection features including overvoltage protection (OVP), undervoltage lockout (UVLO), and thermal shutdown.
Q: Can UCC38503DWTR be used in automotive applications? A: Yes, UCC38503DWTR is suitable for automotive applications as it meets the AEC-Q100 Grade 1 qualification.
Q: What is the typical efficiency of UCC38503DWTR? A: The typical efficiency of UCC38503DWTR is around 95% under normal operating conditions.
Q: Are there any evaluation boards available for UCC38503DWTR? A: Yes, Texas Instruments provides evaluation boards and reference designs for UCC38503DWTR to aid in its application and testing.
Please note that the answers provided here are general and may vary depending on specific design considerations and requirements. It is always recommended to refer to the datasheet and application notes for detailed information.