UCC1895
- Programmable-output turnon delay
- Adaptive delay set
- Bidirectional oscillator synchronization
- Voltage-mode, peak current-mode, or average current-mode control
- Programmable soft start, soft stop, and chip disable via a single pin
- 0% to 100% duty-cycle control
- 7-MHz error amplifier
- Operation to 1 MHz
- Typical 5-mA operating current at 500 kHz
- Very low 150-µA current during UVLO
The UCC3895 is a phase-shift PWM controller that implements control of a full-bridge power stage by phase shifting the switching of one half-bridge with respect to the other. The device allows constant frequency pulse-width modulation in conjunction with resonant zero-voltage switching to provide high efficiency at high frequencies. The part is used either as a voltage-mode or current-mode controller.
While the UCC3895 maintains the functionality of the UC3875/6/7/8 family and UC3879, it improves on that controller family with additional features such as enhanced control logic, adaptive delay set, and shutdown capability. Because the device is built using the BCDMOS process, it operates with dramatically less supply current than it’s bipolar counterparts. The UCC3895 operates with a maximum clock frequency of 1 MHz.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | UCCx895 BiCMOS Advanced Phase-Shift PWM Controller datasheet (Rev. Q) | PDF | HTML | 2019/10/09 |
| Application note | UCC2895 Layout and Grounding Recommendations | 2009/04/09 | ||
| EVM User's guide | UCC3895EVM-001 Configuring The UCC3895 For Direct Control Driven Synchronous Re (Rev. B) | 2008/12/02 | ||
| Application note | Current Doubler Rectifier Offers Ripple Current Cancellation | 2004/09/21 | ||
| Application note | Synchronous Rectifiers of a Current Doubler | 2003/02/27 | ||
| Application note | UCC3895 CD Output Asymmetric Duty Cycle Operation | 2002/08/21 | ||
| Application note | A Power Management Solution for Efficient, Multiple Output Applications | 2001/10/04 | ||
| Application note | A Comparison Between the BiCMOS UCC3895 Phase Shift Controller and the UC3875 | 2001/02/22 | ||
| Application note | DN-63 The Current-Doubler Rectifier: An Alternative Rectification Technique | 2001/01/12 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
UCC3895EVM-001 — UCC3895 평가 모듈
The UCC3895EVM-001 is an isolated 48V input phase shifted full bridge converter providing an output of 3.3V at 15A. Using the AB outputs of the UCC3895, a novel technique for direct control driven synchronous rectification is demonstrated.
UCC1895, UCC2895, UCC3895 TINA-TI Average Reference Design
UCC1895, UCC2895, UCC3895 TINA-TI Average Spice Model
UCC1895, UCC2895, UCC3895 TINA-TI Transient Reference Design
UCC1895, UCC2895, UCC3895 TINA-TI Transient Spice Model
UCCx895 and UCCx7324 Families PSpice Transient Model (Rev. A)
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| CDIP (J) | 20 | 옵션 보기 |
| LCCC (FK) | 20 | 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