UCC28780
- 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
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.
기술 자료
설계 및 개발
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UCC28780EVM-002 — UCC28780 능동 클램프 플라이백 45W AC/DC EVM(GaN FET 지원)
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 (...)
UCC28780EVM-021 — UCC24612 및 Si MOSFET을 지원하는 UCC28780 능동 클램프 플라이백 컨버터 45W EVM
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 (...)
TIDA-01623 — 30W/in3, 93.4% 효율, 100W AC/DC 어댑터 레퍼런스 설계
PMP21479 — 높은 전력 밀도 5-20V AC/DC 어댑터를 위한 Si FET를 지원하는 65W 능동 클램프 플라이백 레퍼런스 설계
TIDA-010047 — Si MOSFET를 지원하는 22W/in3, 93.1% 피크 효율, 100W USB-PD 3.0 AC/DC 어댑터 레퍼런스 설계
PMP30720 — 고효율, 매우 넓은 입력(20VDC~375VDC) 절연 전원 공급 장치 레퍼런스 설계
PMP30631 — 고효율, 70W AC/DC 능동 클램프 플라이백 레퍼런스 설계
PMP40328 — SJ FET를 통한 고효율, 고전력 밀도 능동 클램프 플라이백 어댑터 레퍼런스 설계
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
SOIC (D) | 16 | Ultra Librarian |
WQFN (RTE) | 16 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치