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UCC28C42DGKR
+NomenclatureIC OFFLINE CTRLR PWM UVLO 8VSSOP
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FabricantTexas Instruments
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Pièce fabricant #UCC28C42DGKR
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Fiche technique UCC28C42DGKR DataSheet
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En stock9046
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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
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
Features
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
### 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
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
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.