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UCC28070PW
Power Factor Correction - PFC 2Phase Interleaved CCM PFC Controller
UCC28070PW
Power Factor Correction - PFC 2Phase Interleaved CCM PFC Controller
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Manufacturer Part # : UCC28070PW
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Package/Case: TSSOP-20
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Brand: Texas Instruments
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Product Categories : PFC (Power Factor Correction)
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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If you have a specific payment method in mind or would like to inquire about rates and other details, please feel free to contact 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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UCC28070PW DataSheet
Pricing (USD)
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1 | $3.820 | $3.82 |
| 200 | $1.478 | $295.60 |
| 500 | $1.428 | $714.00 |
| 1000 | $1.402 | $1,402.00 |
These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.
Details
The UCC28070 is an advanced power factor correction (PFC) device that integrates two pulse-width modulators (PWMs) operating 180° out of phase. This interleaved PWM operation generates substantial reduction in the input and output ripple currents, allowing the conducted-EMI filtering to become easier and less expensive. A significantly improved multiplier design provides a shared current reference to two independent current amplifiers that ensures matched average-current mode control in both PWM outputs while maintaining a stable, low-distortion, sinusoidal input-line current.
The UCC28070 device contains multiple innovations including current synthesis and quantized voltage feed-forward to promote performance enhancements in PF, efficiency, THD, and transient response. Features including frequency dithering, clock synchronization, and slew rate enhancement further expand the potential performance enhancements.
The UCC28070 device also contains a variety of protection features including output-overvoltage detection, programmable peak-current limit, undervoltage lockout, and open-loop protection.
Key Features
- Interleaved Average Current-Mode PWM Control
With Inherent Current Matching - Advanced Current Synthesizer Current Sensing
for Superior Efficiency - Highly-Linear Multiplier Output With Internal
Quantized Voltage Feed-Forward Correction for
Near-Unity PF - Programmable Frequency from 30 kHz to 300 kHz
- Programmable Maximum Duty-Cycle Clamp
- Programmable Frequency-Dithering Rate and
Magnitude for Enhanced EMI Reduction- Magnitude: 3 kHz to 30 kHz
- Rate: Up to 30 kHz
- External-Clock Synchronization Capability
- Enhanced Load and Line Transient Response
through Voltage Amplifier Output Slew-Rate
Correction - Programmable Peak Current Limiting
- Bias-Supply UVLO, Overvoltage Protection, Open-
Loop Detection, and PFC-Enable Monitoring - External PFC-Disable Interface
- Open-Circuit Protection on VSENSE and VINAC
pins - Programmable Soft-Start
Application
- The UCC28070PW is suitable for use in a variety of applications, including power factor correction, LED lighting, and motor control. It is also suitable for use in automotive, industrial, and consumer applications.
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Topology | Boost | Control mode | CCM |
| Switching frequency (max) (kHz) | 300 | UVLO thresholds on/off (V) | 10.2/9.2 |
| Vin (max) (V) | 21 | Features | > 750 W applications, Average current mode, Continuous Control Mode, Interleaved, Overvoltage protection, Programable Switching Frequency |
| Rating | Catalog | Operating temperature range (°C) | -40 to 125, -40 to 85 |
| Duty cycle (max) (%) | 99 |
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 UCC28070PW?
The UCC28070PW is a green-mode power factor correction (PFC) controller designed by Texas Instruments. It is specifically designed for use in power supplies requiring high power factor and efficiency, such as LED lighting, industrial power supplies, and consumer electronics.
How Does UCC28070PW Work?
The UCC28070PW operates by controlling the power factor correction circuit to maximize the power conversion efficiency and improve the power factor of the system. It includes features such as green-mode operation for low standby power consumption and cycle-by-cycle peak current limiting for overcurrent protection.
How Many Pins does UCC28070PW have and What are the Functions of the Pinout Configuration?
The UCC28070PW is packaged in a 16-pin TSSOP (Thin Shrink Small Outline Package). The pinout configuration includes:
- VDD: The supply voltage pin for the controller.
- COMP: Compensation pin for loop stability adjustment.
- FB: Feedback pin for voltage regulation.
- RT/CLK: Timing resistor connection pin for oscillator frequency setting.
- REF: Reference voltage output pin.
- CS: Current sense input pin.
- EN/UVLO: Enable and undervoltage lockout pin.
- HS/LS: High-side and low-side gate driver outputs.
What are the Pros and Cons of UCC28070PW?
Pros:
- High Efficiency: Improves power conversion efficiency and power factor of the system.
- Green-Mode Operation: Enables low standby power consumption for energy savings.
- Overcurrent Protection: Features cycle-by-cycle peak current limiting for safe operation.
- Compact Package: Housed in a space-saving 16-pin TSSOP package.
- Wide Application Range: Suitable for various power supply designs including LED lighting and industrial applications.
Cons:
- Complexity: Requires understanding of power factor correction and loop stability for optimal performance.
- External Components: May need additional external components for specific system requirements.
Are There Any Equivalents/Alternatives to UCC28070PW for Recommendation?
- The UCC28056 from Texas Instruments is a similar green-mode PFC controller with different features.
- Alternatives to the UCC28070PW include the NCP1653 from ON Semiconductor and the L6562A from STMicroelectronics.
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