홈 전력 관리 AC/DC 스위칭 레귤레이터 AC/DC 컨트롤러
홈
전력 관리
AC/DC 스위칭 레귤레이터
AC/DC 컨트롤러

UC1856-SP

활성

우주 등급 QMLV, 40V 입력, 1.5A 듀얼 출력 1MHz PWM 컨트롤러

지금 주문하기
데이터 시트

UC1856-SP

활성
데이터 시트 지금 주문하기

제품 상세 정보

Topology Boost, Flyback, Forward, Full bridge, Half bridge, Push pull Control mode Current Features Error amplifier, Multi-topology, Soft start, Synchronization pin Duty cycle (max) (%) 50
Topology Boost, Flyback, Forward, Full bridge, Half bridge, Push pull Control mode Current Features Error amplifier, Multi-topology, Soft start, Synchronization pin Duty cycle (max) (%) 50
CDIP (J) 16 135.3552 mm² 19.56 x 6.92 CFP (HKT) 16 72.136 mm² 10.16 x 7.1
  • Pin-for-Pin Compatible With the UC1846
  • 65-ns Typical Delay From Shutdown to Outputs,
    and 50-ns Typical Delay From SYNC to Outputs
  • Improved Current-Sense Amplifier With
    Reduced Noise Sensitivity
  • Differential Current Sense with 3-V Common-Mode Range
  • Trimmed-Oscillator Discharge Current for Accurate
    Deadband Control
  • Accurate 1-V Shutdown Threshold
  • High-Current Dual Totem-Pole Outputs (1.5-A peak)
  • TTL Compatible Oscillator SYNC Pin Thresholds
  • 4-kV ESD Protection
  • Pin-for-Pin Compatible With the UC1846
  • 65-ns Typical Delay From Shutdown to Outputs,
    and 50-ns Typical Delay From SYNC to Outputs
  • Improved Current-Sense Amplifier With
    Reduced Noise Sensitivity
  • Differential Current Sense with 3-V Common-Mode Range
  • Trimmed-Oscillator Discharge Current for Accurate
    Deadband Control
  • Accurate 1-V Shutdown Threshold
  • High-Current Dual Totem-Pole Outputs (1.5-A peak)
  • TTL Compatible Oscillator SYNC Pin Thresholds
  • 4-kV ESD Protection

The UC1856 is a high-performance version of the popular UC1846 series of current-mode controllers, and is intended for both design upgrades and new applications where speed and accuracy are important. All input-to-output delays have been minimized, and the current sense output is slew-rate limited to reduce noise sensitivity. Fast 1.5-A peak output stages have been added to allow rapid switching of power FETs.

A low-impedance TTL-compatible sync output has been implemented with a TRI-STATE function when used as a sync input.

Internal-chip grounding has been improved to minimize internal noise caused when driving large capacitive loads. This improvement, in conjunction with the improved differential current-sense amplifier, results in enhanced noise immunity.

Other features include a trimmed oscillator current (8%) for accurate frequency and dead-time control; a 1-V 5% shutdown threshold; and 4-kV minimum electrostatic discharge (ESD) protection on all pins.

The UC1856 is a high-performance version of the popular UC1846 series of current-mode controllers, and is intended for both design upgrades and new applications where speed and accuracy are important. All input-to-output delays have been minimized, and the current sense output is slew-rate limited to reduce noise sensitivity. Fast 1.5-A peak output stages have been added to allow rapid switching of power FETs.

A low-impedance TTL-compatible sync output has been implemented with a TRI-STATE function when used as a sync input.

Internal-chip grounding has been improved to minimize internal noise caused when driving large capacitive loads. This improvement, in conjunction with the improved differential current-sense amplifier, results in enhanced noise immunity.

Other features include a trimmed oscillator current (8%) for accurate frequency and dead-time control; a 1-V 5% shutdown threshold; and 4-kV minimum electrostatic discharge (ESD) protection on all pins.
filter 기타 AC/DC 컨트롤러 찾기
다운로드 스크립트와 함께 비디오 보기 비디오
Limited design support from TI available

Existing projects using this product have limited design support from TI. If available, you will find relevant collateral, tools and software on this page. Existing designs using this product have limited design support from TI. Request limited design support in the TI E2E™ support forums.

관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 유사한 기능
TPS7H5001-SP 활성 방사능 저항 동기 정류를 지원하는 QMLV 및 QMLP 2MHz, 듀얼 출력 PWM 컨트롤러 More feature rich QML-qualified radiation-hardened PWM controller family
TPS7H5005-SEP 활성 동기 정류를 지원하는 방사능 내성, 2MHz, 듀얼 출력 PWM 컨트롤러 More feature rich radiation-tolerant PWM controller family for LEO or shorter duration missions

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하세요.
12개 모두 보기
상위 문서 유형 직함 형식 옵션 날짜
* Data sheet UC1856-SP Improved Current Mode PWM Controller datasheet 2014/04/24
* SMD UC1856-SP SMD 5962-94530 2016/07/08
Selection guide TI Space Products (Rev. L) 2026/03/27
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form (Rev. A) PDF | HTML 2025/11/05
Application brief DLA Approved Optimizations for QML Products (Rev. C) PDF | HTML 2025/06/17
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. B) PDF | HTML 2025/06/10
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. B) 2025/02/20
Application note QML flow, its importance, and obtaining lot information (Rev. C) 2023/08/30
Application note Single-Event Effects Confidence Interval Calculations (Rev. A) PDF | HTML 2022/10/19
Application brief Controlling Input Power for Present and Next-Generation Power Controllers PDF | HTML 2020/12/14
Application note DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer 2020/08/21
E-book Radiation Handbook for Electronics (Rev. A) 2019/05/21

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

패키지 핀 CAD 기호, 풋프린트 및 3D 모델
CDIP (J) 16 Ultra Librarian
CFP (HKT) 16 Ultra Librarian
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.

지원 및 교육

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포럼 주제 모두 보기(영문)

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