전력 관리 AC/DC 스위칭 레귤레이터 AC/DC 컨트롤러

UC1843-SP

활성

Radiation-tolerant, QML-V, 30V input, 1A single-output 500kHz PWM controller, 100% duty cycle

제품 상세 정보

Topology Boost, Flyback, Forward Control mode Current Features Error amplifier, Fixed frequency, Multi-topology Duty cycle (max) (%) 100
Topology Boost, Flyback, Forward Control mode Current Features Error amplifier, Fixed frequency, Multi-topology Duty cycle (max) (%) 100
LCCC (FK) 20 79.0321 mm² (— mm × — mm) CDIP (JG) 8 64.032 mm² (— mm × — mm) DIESALE (KGD) See data sheet
  • QML-V Qualified, SMD 5962-86704
  • Rad-Tolerant: 50 kRad (Si) TID (ELDRS Free)(1)
  • Controlled Baseline
  • Optimized For Off-line and DC-to-DC Converters
  • Low Start-Up Current (<1 mA)
  • Automatic Feed Forward Compensation
  • Pulse-by-Pulse Current Limiting
  • Enhanced Load Response Characteristics
  • Under-Voltage Lockout With Hysteresis
  • Double Pulse Suppression
  • High Current Totem Pole Output
  • Internally Trimmed Bandgap Reference
  • 500-kHz Operation
  • Low RO Error Amp

(1) Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mrad/sec. Radiation Lot Acceptance Testing is available - contact factory for details.

  • QML-V Qualified, SMD 5962-86704
  • Rad-Tolerant: 50 kRad (Si) TID (ELDRS Free)(1)
  • Controlled Baseline
  • Optimized For Off-line and DC-to-DC Converters
  • Low Start-Up Current (<1 mA)
  • Automatic Feed Forward Compensation
  • Pulse-by-Pulse Current Limiting
  • Enhanced Load Response Characteristics
  • Under-Voltage Lockout With Hysteresis
  • Double Pulse Suppression
  • High Current Totem Pole Output
  • Internally Trimmed Bandgap Reference
  • 500-kHz Operation
  • Low RO Error Amp

(1) Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mrad/sec. Radiation Lot Acceptance Testing is available - contact factory for details.

The UC1843 family of control devices provides the necessary features to implement off-line or dc-to-dc fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include under-voltage lockout featuring start up current less than 1 mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control, and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-Channel MOSFETs, is low in the off state. The under-voltage lockout threshold is 8.4 V and maximum duty cycle range is around 100%.

The UC1843 family of control devices provides the necessary features to implement off-line or dc-to-dc fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include under-voltage lockout featuring start up current less than 1 mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control, and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-Channel MOSFETs, is low in the off state. The under-voltage lockout threshold is 8.4 V and maximum duty cycle range is around 100%.

다운로드 스크립트와 함께 비디오 보기 비디오

관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 유사한 기능.
신규 TPS7H5020-SEP 활성 Radiation-tolerant, 100% duty cycle PWM controller for driving MOSFETs or GaN FETs More feature rich radiation-tolerant PWM controller family for LEO or shorter duration missions

기술 자료

검색된 결과가 없습니다. 검색어를 지우고 다시 시도하세요.
26개 모두 보기
상위 문서 유형 직함 형식 옵션 최신 영어 버전 다운로드 날짜
* 데이터 시트 QML Class V, Current-Mode PWM Controller datasheet 2010. 3. 25
* 방사능 및 안정성 보고서 UC1843-SP Radiation Test Report 2014. 11. 25
* SMD UC1843-SP SMD 5962-86704 2016. 7. 8
선택 가이드 TI Space Products (Rev. L) 2026. 3. 27
애플리케이션 노트 Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form (Rev. A) PDF | HTML 2025. 11. 5
Application brief DLA Approved Optimizations for QML Products (Rev. C) PDF | HTML 2025. 6. 17
애플리케이션 노트 Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. B) PDF | HTML 2025. 6. 10
추가 자료 TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. B) 2025. 2. 20
애플리케이션 노트 QML flow, its importance, and obtaining lot information (Rev. C) 2023. 8. 30
애플리케이션 노트 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
애플리케이션 노트 DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer 2020. 8. 21
e북 Radiation Handbook for Electronics (Rev. A) 2019. 5. 21
기술 문서 Power Tips: Calculate an R-C snubber in seven steps PDF | HTML 2016. 5. 5
애플리케이션 노트 UCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers 2002. 2. 7
애플리케이션 노트 DN-65 Considerations in Powering BiCMOS ICs 1999. 9. 5
애플리케이션 노트 DN-27 UC1842/UC1842A Family - Summary of Functional Differences 1999. 9. 5
애플리케이션 노트 DN-26 UC3842A Low-Cost Start-up and Fault Protection Circuit 1999. 9. 5
애플리케이션 노트 DN-40 The Effects of Oscillator Discharge Current Variations on Maximum Duty 1999. 9. 5
애플리케이션 노트 DN-29 UC3842A Family - Frequency Foldback Technique Provides Protection 1999. 9. 5
애플리케이션 노트 U-111, Practical Considerations in Current Mode Power Supplies 1999. 9. 5
애플리케이션 노트 U-100A UC3842/3/4/5 Provides Low-Cost Current-Mode Control 1999. 9. 5
애플리케이션 노트 Modeling, Analysis and Compensation of the Current-Mode Converter 1999. 9. 5
애플리케이션 노트 DN-30 Programmable Electronic Circuit Breaker 1999. 9. 5
애플리케이션 노트 DN-89 Comparing the UC3842, UCC3802, and UCC3809 Primary Side PWM Controllers 1999. 9. 5
애플리케이션 노트 DN-62 Switching Power Supply Topology Voltage Mode vs. Current Mode 1999. 9. 5

설계 및 개발

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

시뮬레이션 모델

UC1843A-SP Unencrypted PSpice Transient Model

SLUM660.ZIP (3 KB) - PSpice 모델
지원되는 제품 및 하드웨어
패키지 CAD 기호, 풋프린트 및 3D 모델
LCCC (FK) 20 Ultra Librarian
CDIP (JG) 8 Ultra Librarian
DIESALE (KGD) Ultra Librarian

주문 및 품질

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

지원 및 교육

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

콘텐츠는 TI 및 커뮤니티 기고자에 의해 "있는 그대로" 제공되며 TI의 사양으로 간주되지 않습니다. 사용 약관을 참조하십시오.

품질, 패키징, TI에서 주문하는 데 대한 질문이 있다면 TI 지원을 방문하세요. ​​​​​​​​​​​​​​

동영상