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UCC28C44D
20-V low-power current-mode PWM controller tailored for industrial use, offering a 50% duty cycle and 14.5-V/9-V undervoltage lockout functionalityUCC28C44D
20-V low-power current-mode PWM controller tailored for industrial use, offering a 50% duty cycle and 14.5-V/9-V undervoltage lockout functionality
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Manufacturer Part # : UCC28C44D
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Package/Case: SOIC (D)-8
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Brand: Texas Instruments
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Product Categories : DC DC Switching Controllers
Quality Assurance
Quality Assurance
All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.
Certification
We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.
Shipping & Payment
Shipping & Payment
About Shipping
We generally ship orders within a few business days through reliable shipping carriers such as FedEx, SF, UPS, or DHL. We also have support for other shipping methods. If you would like to inquire about specific shipping details or costs, please don't hesitate to reach out to us.
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
Confirm the return or exchange with our staff.
Maintain the goods in their original condition as received.
Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]
About packaging
Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.
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UCC28C44D DataSheet
Pricing (USD)
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1 | $1.384 | $1.38 |
| 10 | $1.353 | $13.53 |
| 30 | $1.333 | $39.99 |
| 75 | $1.312 | $98.40 |
These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.
Details
The UCCx8C4x family is designed with pin-for-pin compatibility to the industry standard UCx84xA family and UCx84x family of PWM controllers, allowing for easy integration into existing designs. Additionally, the lower startup voltage versions of 7 V make it suitable for use in battery systems, further expanding its versatility
Key Features
- Synchronous rectifier control IC with high efficiency
- Wide input voltage range of 4.5V to 15V
- Fault-tolerant operation and automatic restart
Application
- Integrated circuit use
- Versatile power control
- High efficiency design
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Topology | Boost, Buck, Flyback, Forward, SEPIC | Control mode | Current |
| Duty cycle (max) (%) | 50 | Switching frequency (max) (kHz) | 1000 |
| Features | Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Multi-topology, Programmable max duty cycle | UVLO thresholds on/off (V) | 14.5/9 |
| Operating temperature range (°C) | -40 to 125 | Rating | Catalog |
| Gate drive (typ) (A) | 1 | Vin (max) (V) | 18 |
Specification Comparison
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is UCC28C44D?
The UCC28C44D is a high-performance, low-power current-mode PWM controller designed by Texas Instruments. It is specifically designed for use in offline flyback converters, providing excellent efficiency and accuracy in power supply applications.
How Does UCC28C44D Work?
The UCC28C44D operates as a current-mode PWM controller, regulating the output voltage of the power supply by adjusting the duty cycle of the switching signal. It features a high-precision internal oscillator and programmable soft start to ensure stable and reliable power supply operation. The device offers protection features such as overvoltage protection and overcurrent protection for enhanced system reliability.
How Many Pins does UCC28C44D have and What are the Functions of the Pinout Configuration?
The UCC28C44D is available in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:
- 1. VCC: Power supply pin.
- 2. COMP: Error amplifier output pin.
- 3. FB: Feedback pin for regulating the output voltage.
- 4. CS: Current sense input for monitoring the switching current.
- 5. GND: Ground connection.
- 6. RT: Oscillator timing resistor connection.
- 7. CT: Oscillator timing capacitor connection.
- 8. OUT: Output pin for driving an external power switch.
What are the Pros and Cons of UCC28C44D?
Pros:
- High Efficiency: Optimized for high-efficiency power supply designs.
- Precision Control: Offers accurate current-mode control for stable output regulation.
- Protection Features: Includes various protection mechanisms for increased system reliability.
- Programmable Soft Start: Allows customizable soft start timing to prevent inrush currents.
- Compact Package: The 8-pin SOIC package is space-saving and easy to integrate into designs.
Cons:
- Application Specific: Primarily designed for offline flyback converters and may not be suitable for all power supply applications.
- External Components: May require additional external components for optimal performance in certain designs.
- Design Complexity: Requires careful consideration of layout and component selection for efficient operation.
Are There Any Equivalents/Alternatives to UCC28C44D for Recommendation?
- The UCC28051 from Texas Instruments is a similar current-mode PWM controller with additional features.
- Alternatives to the UCC28C44D include the UC3844 from STMicroelectronics and the NCP1207 from ON Semiconductor.
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