Part Details for UCC28781ARTWR by Texas Instruments
Results Overview of UCC28781ARTWR by Texas Instruments
- Distributor Offerings: (3 listings)
- Number of FFF Equivalents: (0 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (0 options)
- CAD Models: (Request Part)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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UCC28781ARTWR Information
UCC28781ARTWR by Texas Instruments is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
Available Datasheets
| Part # | Manufacturer | Description | Datasheet |
|---|---|---|---|
| UCC28781ARTWR | Texas Instruments | High-density, zero-voltage switching (ZVS) flyback controller with integrated SR control 24-WQFN -40 to 125 |
Price & Stock for UCC28781ARTWR
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
296-UCC28781ARTWRDKR-ND
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DigiKey | HIGH-DENSITY, ZERO-VOLTAGE SWITC Container: Digi-Reel |
1872 Digi-Reel® |
|
Buy Now | |
|
DISTI #
296-UCC28781ARTWRCT-ND
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DigiKey | HIGH-DENSITY, ZERO-VOLTAGE SWITC Min Qty: 1 Container: Cut Tape |
1872 Cut Tape |
|
$1.0584 / $2.0100 | Buy Now |
|
DISTI #
296-UCC28781ARTWRTR-ND
|
DigiKey | HIGH-DENSITY, ZERO-VOLTAGE SWITC Min Qty: 3000 Container: Tape & Reel |
1872 Tape & Reel |
|
$0.9847 / $1.0159 | Buy Now |
US Tariff Estimator: UCC28781ARTWR by Texas Instruments
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
UCC28781ARTWR Part Data Attributes
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UCC28781ARTWR
Texas Instruments
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Datasheet
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UCC28781ARTWR
Texas Instruments
Switching Regulator, Voltage-mode, 2.8A, 1500kHz Switching Freq-Max, PQCC24
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.90 | |
| Analog IC - Other Type | Switching Regulator | |
| Control Mode | Voltage-Mode | |
| Control Technique | Pulse Width Modulation | |
| Input Voltage-Max | 34 V | |
| Input Voltage-Min | 14 V | |
| Input Voltage-Nom | 20 V | |
| JESD-30 Code | S-PQCC-N24 | |
| JESD-609 Code | e4 | |
| Length | 4 Mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Terminals | 24 | |
| Operating Temperature-Max | 125 °C | |
| Operating Temperature-Min | -40 °C | |
| Output Current-Max | 2.8 A | |
| Package Body Material | Plastic/Epoxy | |
| Package Code | HVQCCN | |
| Package Equivalence Code | LCC24,.16SQ,20 | |
| Package Shape | Square | |
| Package Style | Chip Carrier, Heat Sink/Slug, Very Thin Profile | |
| Peak Reflow Temperature (Cel) | 260 | |
| Seated Height-Max | 0.8 Mm | |
| Supply Voltage-Nom (Vsup) | 20 V | |
| Surface Mount | Yes | |
| Switcher Configuration | Buck-Boost | |
| Switching Frequency-Max | 1500 Khz | |
| Terminal Finish | Matte Tin (Sn) - Annealed | |
| Terminal Form | No Lead | |
| Terminal Pitch | 0.5 Mm | |
| Terminal Position | Quad | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Width | 4 Mm |
UCC28781ARTWR Frequently Asked Questions (FAQ)
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Texas Instruments provides a recommended PCB layout in the UCC28781ARTWR datasheet, but it's also recommended to follow the guidelines in the TI application note 'UCC28780/1/2 PCB Layout Guidelines' (SLUA945) for optimal performance and EMI reduction.
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The UCC28781ARTWR datasheet provides guidelines for transformer selection, but it's also recommended to use TI's Transformer Design Tool (TDT) to select the optimal transformer for your specific application. Additionally, consider factors such as core material, turns ratio, and leakage inductance when selecting a transformer.
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The UCC28781ARTWR has an operating temperature range of -40°C to 125°C, but it's recommended to derate the device's performance at higher temperatures to ensure reliability and prevent thermal shutdown.
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The UCC28781ARTWR has a built-in OVP feature, but it's recommended to use an external OVP circuit to provide additional protection against high-voltage transients. TI provides an application note 'Overvoltage Protection for Flyback Converters' (SLUA944) that provides guidance on implementing OVP with the UCC28781ARTWR.
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The UCC28781ARTWR datasheet recommends using a low-ESR ceramic capacitor with a value of 10uF to 22uF for the input capacitor. However, the optimal capacitor value and type may vary depending on the specific application and input voltage range.