UCC28C42DGKR

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UCC28C42DGKR

+Nomenclature

IC OFFLINE CTRLR PWM UVLO 8VSSOP

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Spécifications

Attribut Valeur
Part Status Active
Output Type Transistor Driver
Function Step-Up, Step-Up/Step-Down
Output Configuration Positive
Topology Boost, Flyback, Forward Converter
Number of Outputs 1
Output Phases 1
Voltage - Supply (Vcc/Vdd) 9V ~ 18V
Frequency - Switching Up to 1MHz
Duty Cycle (Max) 96%
Synchronous Rectifier No
Clock Sync No
Control Features Frequency Control
Operating Temperature -40°C ~ 105°C (TJ)
Mounting Type Surface Mount
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package 8-VSSOP
Base Product Number UCC28C42

Présentation

Description

The UCC28C42DGKR is a highly integrated, high-performance controller designed for use in power supply applications. It features a fixed frequency, current-mode control architecture which enhances system stability and provides excellent line and load regulation. The device operates in a wide input voltage range, making it suitable for various applications, including AC-DC converters and DC-DC converters.
Key features include a programmable soft-start function, adjustable switching frequency, and built-in protection mechanisms such as over-voltage protection (OVP) and under-voltage lockout (UVLO). The UCC28C42DGKR also supports peak current limiting and thermal shutdown to ensure reliable operation.
Its operational efficiency and versatility make it ideal for applications in industrial, telecommunications, and consumer electronics sectors. Packaged in a thermally efficient 16-pin TSSOP, the UCC28C42DGKR is designed for ease of integration into compact designs. Overall, it provides designers with a robust solution for meeting stringent power conversion requirements.

Equivalent

The UCC28C42DGKR is a PWM controller primarily used in power supply applications. Equivalent products include the LM3478, TL494, and UC3842. These alternatives provide similar functionality in terms of PWM control, voltage regulation, and applications in DC-DC converters. Always check specific electrical characteristics and pin configurations to ensure compatibility in your design.

Features

The UCC28C42DGKR is a high-performance PWM (Pulse Width Modulation) controller designed for use in power supply applications. Key features include:
1. Voltage Regulation: It provides accurate voltage regulation through a voltage feedback loop.
2. Wide Input Voltage Range: Operates typically from 8V to 40V, making it suitable for various applications.
3. High Efficiency: The controller enables high-efficiency power conversion, making it ideal for power supply designs.
4. Integrated Functions: Features integrated functions like soft start, frequency modulation, and peak current limiting, enhancing design simplicity and reliability.
5. 500kHz Operation: Capable of operating at high frequencies, allowing for smaller passive components in the power supply design.
6. Thermal Shutdown: Includes thermal protection to prevent overheating and damage.
7. Adjustable Switching Frequency: Offers flexibility in design with an adjustable switching frequency.
Overall, the UCC28C42DGKR is suitable for applications such as DC-DC converters, power adapters, and battery chargers.

Pinout

The UCC28C42DGKR is a dual voltage mode controller primarily used in power supply applications. It has a pin count of 16.
### Pin Functions:
1. 1 - VDD: Supply voltage input.
2. 2 - VREF: Reference voltage output.
3. 3 - CSN: Current sense negative.
4. 4 - CS: Current sense positive.
5. 5 - COMP: Compensation for the error amplifier.
6. 6 - GND: Ground reference.
7. 7 - FB: Feedback input for voltage regulation.
8. 8 - DRT: Damping resistor terminal.
9. 9 - PWM: Pulse-width modulation output.
10. 10 - RAMP: Ramp generator output.
11. 11 - CT: Timing capacitor connection.
12. 12 - RT: Timing resistor connection.
13. 13 - EN: Enable pin for the controller.
14. 14 - VOUT: Output voltage feedback.
15. 15 - SENSE: Sensing input for overcurrent protection.
16. 16 - TRIP: Overvoltage protection trip point.
This device is typically used in applications like switch-mode power supplies.

Manufacturer

The UCC28C42DGKR is manufactured by Texas Instruments (TI), a leading global semiconductor company. Texas Instruments designs and produces a wide range of electronic components, including analog, embedded processing, and digital signal processing technologies. The company is known for its innovation in the semiconductor industry, providing solutions for various applications such as automotive, industrial, communications, and consumer electronics.
Founded in 1930, Texas Instruments has established itself as a key player in the electronics market, emphasizing research and development to drive technological advancements. The UCC28C42DGKR is specifically a PWM (Pulse Width Modulation) controller used in power management applications, showcasing TI's expertise in developing integrated circuits that enhance energy efficiency and performance.
With a strong commitment to quality and reliability, Texas Instruments serves customers worldwide, offering both products and technical support to help designers implement efficient and effective electronic solutions.

Application

The UCC28C42DGKR is a high-performance PWM (Pulse Width Modulation) controller primarily used in power supply applications. Its key application areas include:
1. Switching Power Supplies: Ideal for isolated and non-isolated designs.
2. DC-DC Converters: Utilized for step-down (buck) and boost converter topologies.
3. Power Management: Employed in desktop and server power supplies for energy efficiency.
4. Battery Chargers: Suitable for various battery charging applications.
5. LED Drivers: Used in driving LED lighting systems effectively.
Its features include high efficiency, precise regulation, and robust performance across a range of operating conditions.

Package

The UCC28C42DGKR is packaged in a 16-pin TSSOP (Thin Shrink Small Outline Package). This compact package type helps in saving board space while providing efficient thermal performance.

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