PUCC28780RTER Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
PUCC28780RTER is an active clamp flyback switching controller by Texas Instruments, designed for high-efficiency AC/DC power supply topologies. Key specs include integrated gate drivers, adaptive dead-time control, and support for wide input voltage ranges in a compact QFN package. Available in stock with worldwide shipping for industrial and consumer power supply designs.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 17
- Lifecycle
- OBSOLETE
- Datasheet
- PUCC28780RTER Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Active clamp flyback topology controller for high-efficiency isolated AC/DC conversion
- Integrated high-side and low-side gate drivers reducing external component count
- Adaptive dead-time control for zero-voltage switching (ZVS) across load range
- Wide input voltage range support for universal AC mains applications
- Compact QFN package enabling high power density PSU designs
- Comprehensive protection features including OVP, OCP, and thermal shutdown
Applications
PUCC28780RTER is used in USB Power Delivery (USB-PD) adapters, industrial SMPS designs, and server auxiliary power supplies where active clamp flyback topology improves efficiency beyond 93% at moderate power levels. It also suits telecom rectifiers, EV onboard chargers, and LED driver stages that need isolated output with low EMI and high power density in a compact package.
Specifications
| Date Of Intro | 2017-11-15 |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PUCC28780RTER:
Frequently Asked Questions
What switching topology does the PUCC28780RTER implement and why does it improve efficiency?
The PUCC28780RTER implements active clamp flyback topology, which recycles transformer leakage energy through the clamp capacitor and enables zero-voltage switching of the main MOSFET. This reduces switching losses compared to passive clamp designs, allowing power supplies to achieve efficiency levels above 90% across load ranges from 20% to 100% rated power.
What protection features does PUCC28780RTER include to safeguard power supply circuits?
The device integrates over-voltage protection (OVP), over-current protection (OCP), and thermal shutdown circuits. These safeguards respond within microseconds to fault conditions, preventing damage to the transformer, output capacitors, and load in isolated power supply designs up to the rated output power level.
How does the QFN package of PUCC28780RTER support high power density adapter designs?
The QFN package has an exposed thermal pad and a small PCB footprint typically under 5 mm x 5 mm, which allows designers to fit the controller, gate drive circuitry, and bypass capacitors within the compact PCB area of a 65 W USB-PD adapter or wall charger where board space is at a premium.
When would an engineer choose PUCC28780RTER over a conventional flyback controller without active clamp?
PUCC28780RTER is selected when efficiency targets exceed 91% at full load, when transformer voltage spikes from leakage inductance need to be recycled rather than clamped with lossy RCD snubbers, or when the design must meet stringent Energy Star or EU Ecodesign regulations requiring low standby power below 0.5 W at 230 V input.
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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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