Category: Integrated Circuit (IC)
Use: Power Management IC
Characteristics: - High-performance current mode PWM controller - Designed for off-line and DC-to-DC converter applications - Provides necessary features to implement a highly efficient power supply design
Package: SOIC-8
Essence: The UCC38083DR is a high-performance current mode PWM controller that is widely used in power management applications. It offers various features to enable the implementation of efficient power supply designs.
Packaging/Quantity: The UCC38083DR is available in a standard SOIC-8 package. It is typically sold in reels or tubes containing multiple units.
The UCC38083DR has the following pin configuration:
The UCC38083DR operates based on the current mode control principle. It compares the sensed current through the power switch with a reference voltage to regulate the output voltage. By adjusting the slope compensation, the controller ensures stable operation and prevents subharmonic oscillations.
During startup, the internal soft-start function gradually increases the duty cycle, allowing the power supply to reach its steady-state operation smoothly. The adaptive shoot-through protection prevents both high-side and low-side MOSFETs from conducting simultaneously, avoiding short circuits.
The UCC38083DR is commonly used in various power management applications, including:
These alternative models offer similar functionality to the UCC38083DR but may have different specifications or additional features to suit specific requirements.
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Sure! Here are 10 common questions and answers related to the application of UCC38083DR in technical solutions:
Q: What is UCC38083DR? A: UCC38083DR is a high-performance current mode PWM controller used in power supply applications.
Q: What are the key features of UCC38083DR? A: Some key features include adjustable frequency operation, soft-start capability, cycle-by-cycle current limiting, and integrated high-voltage startup.
Q: What is the typical input voltage range for UCC38083DR? A: The typical input voltage range is between 9V and 18V.
Q: Can UCC38083DR be used in both AC-DC and DC-DC applications? A: Yes, UCC38083DR can be used in both AC-DC and DC-DC applications.
Q: What is the maximum switching frequency supported by UCC38083DR? A: The maximum switching frequency supported is typically around 500kHz.
Q: Does UCC38083DR have built-in protection features? A: Yes, UCC38083DR has built-in protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown.
Q: Can UCC38083DR operate in a wide temperature range? A: Yes, UCC38083DR can operate in a wide temperature range, typically from -40°C to 125°C.
Q: How does UCC38083DR achieve soft-start capability? A: UCC38083DR achieves soft-start capability through an internal soft-start capacitor that gradually ramps up the output voltage during startup.
Q: Is UCC38083DR suitable for high-power applications? A: Yes, UCC38083DR is suitable for high-power applications as it can handle high currents and voltages.
Q: Are there any application notes or reference designs available for UCC38083DR? A: Yes, Texas Instruments provides application notes and reference designs that can help in implementing UCC38083DR in various technical solutions.
Please note that the answers provided here are general and may vary depending on specific design requirements and application scenarios. It's always recommended to refer to the datasheet and relevant documentation for accurate information.