UCC28600DIn StockTexas Instruments
UCC28600D is a quasi-resonant flyback PWM controller by Texas Instruments. Key specs: variable-frequency quasi-resonant switching, valley switching, integrated gate driver. From $0.459, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $0.4590(MOQ 25)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quasi-resonant valley switching reduces switching losses and EMI
- Variable frequency operation with frequency foldback at light load for improved efficiency
- Integrated gate driver simplifies flyback converter design
- Cycle-by-cycle peak current limiting for robust overcurrent protection
- Low startup current enables energy-efficient startup circuitry
Applications
UCC28600D is widely used in AC/DC flyback power supplies for consumer electronics, including USB chargers, set-top boxes, and standby power supplies. It is also suitable for industrial power adapters and open-frame power supplies where high efficiency at light load and low EMI are critical requirements. The device's quasi-resonant operation makes it ideal for designs targeting Energy Star and other efficiency standards.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | RESONANT CONTROL TECHNIQUE IS ALSO AVAILABLE |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 21V |
| Input Voltage-Min | 9.3V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1.2A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 130kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| ## UCC28600D Alternates Showing results | Image |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the UCC28600D and what type of converter does it control?
The UCC28600D is a quasi-resonant flyback PWM controller from Texas Instruments. It controls isolated flyback converters by detecting voltage valleys on the drain waveform and switching at zero-voltage crossing points, which significantly reduces switching losses and electromagnetic interference compared to hard-switching controllers.
What are the key protection features of the UCC28600D?
The UCC28600D includes cycle-by-cycle peak current limiting for overcurrent protection, over-voltage protection, and thermal shutdown. It also features frequency foldback at light loads to reduce switching frequency and improve efficiency under low-power conditions, protecting both the controller and power stage components.
What package is the UCC28600D available in and what is its typical application?
The UCC28600D is available in a standard SOIC-8 (D) package, making it easy to integrate into compact PCB designs. It is typically used in AC/DC flyback power supplies for consumer electronics such as USB chargers, set-top boxes, and industrial power adapters requiring high efficiency and low standby power.
How does the UCC28600D achieve high efficiency at light load?
The UCC28600D implements frequency foldback at light load conditions, reducing the switching frequency as output power decreases. This lowers switching losses proportionally, which is critical for meeting standby power requirements such as Energy Star standards. The quasi-resonant valley switching further minimizes losses across the full load range.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 25+ | $0.6430 | $16.07 |
| 50+ | $0.5960 | $29.80 |
| 75+ | $0.5840 | $43.80 |
| 405+ | $0.4963 | $201.00 |
| 525+ | $0.4776 | $250.74 |
| 655+ | $0.4590 | $300.65 |
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