UCC24612
- Supports Topologies such as Active Clamp Flyback, QR, DCM, CCM Flyback and LLC
- MOSFET VDS Sensing up to 230 V
- Operating Frequency Up to 1 MHz
- 1 MHz for UCC24612-1
- 800 kHz for UCC24612-2
- Wide VDD Range Allows for Direct Bias from 5-V to 28-V Output Systems
- 4-A Sink, 1-A Source Gate Driver with Proportional Gate Drive
- Adaptive Minimum Off-time for Increased Noise Immunity
- Cycle Limit Pre-Turn-off Improves Efficiency in CCM
- High or Low-Side Configurable
- Automatic Light-Load and Sleep-Mode Management with 320-µA standby current
- 16-ns Typical Turnoff Propagation Delay
- 9.5-V Gate Drive Clamp for Reduced Driving Loss
UCC24612 is a high performance synchronous rectifier controller and driver for standard and logic-level N-channel MOSFET power devices. By implementing a near-ideal diode emulation UCC24612 reduces losses of the output rectifier and indirectly the primary side losses. The drain to source (VDS) sensing control scheme allows UCC24612 to work with multiple topologies, such as Active Clamp Flyback, QR/DCM/CCM Flyback and LLC, et.
Integrated features simplify the design effort, enabling UCC24612 to excel in a variety of applications and frequencies. The wide operating VDD and VD voltage ranges enable simple implementation in systems with outputs up to 28 V. Efficiency and noise immunity is enhanced with adaptive minimum off-time. Variants UCC24612-1 and UCC24612-2 offer different minimum on-times to provide additional noise immunity. Robust operation in continuous conduction mode (CCM) is further enhanced with proportional gate-drive and CCM cycle limit pre-turn-off.
UCC24612 has multiple features that improve efficiency. The fast comparator with short propagation delays reduces switching loss. The 9.5-V gate drive clamp reduces MOSFET driving losses. Frequency dependent standby modes further decreases standby power. These features help UCC24612 be part of a greater system that meets stringent efficiency standards such as Department of Energy (DoE) Level VI and Code of Conduct (CoC) Tier 2.
UCC24612 is available in a SOT23-5 package.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | UCC24612 High Frequency Synchronous Rectifier Controller datasheet (Rev. A) | PDF | HTML | 2018/02/13 |
| Technical article | 고주파 공진 컨버터 설계 고려 사항, 2부 | PDF | HTML | 2024/03/15 | |
| More literature | PCB layout guidelines to optimize power supply performance | 2021/03/23 | ||
| Technical article | Gain ultra-high power density for 100-W USB Power Delivery adapters | PDF | HTML | 2019/03/05 | |
| Technical article | How topology selection can help improve reliability in industrial AC/DC power supp | PDF | HTML | 2019/02/14 | |
| Technical article | Intelligently control an active clamp flyback | PDF | HTML | 2018/03/01 | |
| Application note | UCC24610 and UCC24612 SR Range Extension Guide | 2017/12/18 | ||
| EVM User's guide | Using the UCC24612-1EVM | 2017/05/16 |
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 (...)
UCC24612-1EVM — 2차측 동기 정류기 컨트롤러 다이오드 교체 데모 보드
많은 TI 레퍼런스 설계에는 UCC24612이(가) 포함됩니다.
레퍼런스 디자인 선택 툴을 사용하여 애플리케이션 및 매개 변수에 가장 적합한 설계를 검토하고 식별할 수 있습니다.
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| SOT-23 (DBV) | 5 | 옵션 보기 |
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