PUCC28780D Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The PUCC28780D is an active clamp flyback (ACF) switching controller IC from Texas Instruments designed for high-efficiency isolated power supplies. It integrates synchronous rectification control and supports valley switching to achieve over 90% efficiency in adapter and charger applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- PUCC28780D Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PUCC28780D?
- Active clamp flyback topology with integrated synchronous rectification control
- Valley switching for high efficiency exceeding 90% in typical adapter designs
- Small Outline package (SOP) for compact isolated power supply layouts
- Wide input voltage range support for universal AC-DC adapter designs
- Advanced protection features including over-current and over-voltage protection
What is PUCC28780D used for?
PUCC28780D is primarily used in high-efficiency USB-C power delivery adapters, laptop chargers, and industrial SMPS where active clamp flyback topology is selected to meet DOE6 and CoC Tier 2 efficiency standards. It is also applied in 5 V to 20 V multi-output isolated supplies for telecom and industrial equipment requiring low no-load power consumption.
What are the specifications of PUCC28780D?
| Date Of Intro | 2017-11-15 |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the PUCC28780D datasheet?
PUCC28780D Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PUCC28780D?
Compatible alternatives and drop-in replacements for PUCC28780D:
Switching Controller, Current-mode, 1000kHz Switching Freq-Max, BICMOS, PDSO16
Frequently Asked Questions
What switching topology does PUCC28780D implement and how does it improve efficiency versus a standard flyback controller?
PUCC28780D implements an active clamp flyback (ACF) topology, which recycles the leakage inductance energy that a passive clamp wastes. This enables zero-voltage switching (ZVS) and reduces switching losses, pushing peak efficiency above 90% in 65 W USB-C adapter designs compared to roughly 85% for a conventional flyback.
What output power range and input voltage conditions is PUCC28780D typically designed to handle in adapter applications?
PUCC28780D is designed for AC-DC adapter applications with universal input from 85 VAC to 265 VAC (120 VDC to 375 VDC rectified), supporting output power levels typically from 18 W to 65 W, making it suitable for USB-PD chargers and laptop power supplies.
Which protection mechanisms are built into PUCC28780D to safeguard the power supply under fault conditions?
PUCC28780D includes integrated over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown, reducing the external component count required to meet IEC 62368-1 safety standards for consumer adapters. These features activate within microseconds to clamp fault energy.
How does PUCC28780D fit into a USB Power Delivery 3.0 charger design requiring programmable voltage output?
PUCC28780D supports communication with a secondary-side controller via a feedback loop that allows output voltage to be adjusted from 5 V to 20 V in a PD 3.0 charger. The ACF stage delivers the low-loss switching needed to sustain 20 V at 3 A (60 W) within a compact 30 x 50 mm adapter board.
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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.
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