1-MHz High Frequency Active Clamp Flyback Controller
Product details
Parameters
Package | Pins | Size
Features
- Full and Partial Zero Voltage Switching (ZVS) of Primary FET with Adaptive Control
- Programmable Timing for External Si or GaN FETs
- High Switching Frequency up to 1 MHz
- Programmable Adaptive Burst Control and Standby Mode for Light-Load Efficiency with Low Output Ripple and Audible Noise Mitigation
- Brownout Detection without Direct Line Sensing
- Accurate Programmable Over-Power Protection (OPP) to Support Peak Power Mode
- Fault Protections: Over-Temperature, Output Over-Voltage, Output Short-Circuit, Over-Current, and Pin Fault
- Direct Interface with Optocoupler Based Feedback Allows for Dynamically Scalable Output Voltage
- Internal Soft Start
- NTC Thermistor Interface with External Enable
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Description
UCC28780 is a high-frequency active-clamp flyback controller that enables high-density AC-to-DC power supplies that comply with stringent global efficiency standards such as DoE Level VI and EU CoC V5 Tier-2. User programmable advanced control law features allow performance to be optimized for both Silicon (Si) and Gallium Nitride (GaN) power FETs. Direct operation with switching devices that combine driver and GaN FETs is further enhanced with logic-level gate signals and enable outputs.
Zero voltage switching (ZVS) is achieved over a wide operating range with advanced auto-tuning techniques, adaptive dead-time optimization, and variable switching frequency control law. Using adaptive multimode control that changes the operation based on input and output conditions, UCC28780 enables high efficiency while mitigating audible noise. With a variable switching frequency of up to 1 MHz and accurate programmable over-power protection, which provides consistent power for thermal design across wide line range, the size of passive components can be further reduced and enable high power density.
UCC28780 works with VDS-sensing synchronous rectifier controllers, such as UCC24612, to achieve higher conversion efficiency and very compact designs.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The UCC28780EVM-002 demonstrates high-efficiency and high-density for a 45-W off-line adapter using the UCC28780 active-clamp flyback controller at high frequency nominal 300 kHz using GaN MOSFET Power ICs, NV6115 and NV6117. The EVM also uses the UCC24612 synchronous rectifier controller on (...)
Features
- 45-W, 20-V AC-to-DC converter using active-clamp flyback controller, GaN MOSFET Power IC, and synchronous rectification
- High Efficiency (> 94%), High Power Density (> 20W/in3), Low Standby Power (55mW), and High Switching Frequency (300kHz)
- Exceeds EU Code of Conduct and US Department of Energy (...)
Description
The UCC28780EVM-021 is a 45-W evaluation module (EVM) for evaluating an off-line active-clamp flyback adapter for notebook charging and other applications. The EVM meets CoC Tier 2 and DoE Level 6 efficiency requirements. It is intended for evaluation purposes and is not intended to be an end (...)
Features
- 45-W, 20-V AC-to-DC converter using active-clamp flyback controller, Si MOSFET Power IC, and synchronous rectification.
- High Efficiency (> 93%), High Power Density (> 20W/in3), Low Standby Power (55mW), and High Switching Frequency (300kHz).
- Exceeds EU Code of Conduct and US Department of Energy (...)
Software development
Design tools & simulation
Reference designs
Design files
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download PMP21639 BOM.pdf (343KB) -
download PMP21639 Assembly Drawing.pdf (268KB) -
download PMP21639 PCB.pdf (1231KB) -
download PMP21639 CAD Files.zip (2618KB) -
download PMP21639 Gerber.zip (523KB)
Design files
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download PMP21479 Assembly Drawing (Rev. A).pdf (291KB) -
download PMP21479 BOM (Rev. A).pdf (343KB) -
download PMP21479 PCB (Rev. A).pdf (1267KB) -
download PMP21479 CAD Files.zip (1548KB) -
download PMP21479 Gerber.zip (1044KB)
Design files
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download PMP21552 Assembly Drawing (Rev. A).pdf (318KB) -
download PMP21552 BOM (Rev. A).pdf (344KB) -
download PMP21552 CAD Files (Rev. A).zip (2006KB) -
download PMP21552 Gerber (Rev. A).zip (574KB) -
download PMP21552 PCB (Rev. A).pdf (1362KB)
Design files
Design files
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download TIDA-010047 Assembly Drawing.zip (247KB) -
download TIDA-010047 PCB.zip (1002KB) -
download TIDA-010047 Gerber.zip (1308KB) -
download TIDA-010047 BOM Files (Rev. B).zip (515KB) -
download TIDA-010047 CAD Files (Rev. A).zip (7111KB)
Design files
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download PMP30720 BOM.pdf (48KB) -
download PMP30720 Assembly Drawing.pdf (53KB) -
download PMP30720 PCB.pdf (101KB) -
download PMP30720 CAD Files.zip (1494KB) -
download PMP30720 Gerber.zip (1465KB)
Design files
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download PMP30631 BOM.pdf (35KB) -
download PMP30631 Assembly Drawing.pdf (117KB) -
download PMP30631 PCB.pdf (187KB) -
download PMP30631 CAD Files.zip (1151KB) -
download PMP30631 Gerber.zip (1169KB)
Design files
Design files
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download PMP40328 BOM.pdf (39KB) -
download PMP40328 Assembly Drawing.pdf (205KB) -
download PMP40328 PCB.pdf (1454KB) -
download PMP40328 CAD Files.zip (28KB) -
download PMP40328 Gerber.zip (697KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOIC (D) | 16 | View options |
WQFN (RTE) | 16 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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