전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)

UC1843B-SP

활성

방사능 내성 강화 QMLV, 30V 입력, 1A 단일 출력 500kHz PWM 컨트롤러, 100% 듀티 사이클

제품 상세 정보

Vin (max) (V) 25 Operating temperature range (°C) -55 to 125 Control mode Peak current mode, Voltage Topology Boost, Buck, Flyback, Forward Rating Space Features Error amplifier, Multi-topology Duty cycle (max) (%) 100
Vin (max) (V) 25 Operating temperature range (°C) -55 to 125 Control mode Peak current mode, Voltage Topology Boost, Buck, Flyback, Forward Rating Space Features Error amplifier, Multi-topology Duty cycle (max) (%) 100
CFP (HKU) 10 45.4896 mm² 7.02 x 6.48 DIESALE (KGD) See data sheet
  • QML class V (QMLV) qualified, SMD 5962-86704
  • 5962R8670412VYC:
    • Radiation hardness assurance (RHA) up to 100-krad(Si) total ionizing dose (TID)
  • Optimized for offline and DC-to-DC converters
  • Low start-up current (< 0.5 mA)
  • Trimmed oscillator discharge current
  • Automatic feed forward compensation
  • Pulse-by-pulse current limiting
  • Enhanced load response characteristics
  • Undervoltage lockout (UVLO) with hysteresis
  • Double-pulse suppression
  • High-current totem-pole output
  • Internally-trimmed bandgap reference
  • 500-kHz operation
  • Low RO error amplifier
  • QML class V (QMLV) qualified, SMD 5962-86704
  • 5962R8670412VYC:
    • Radiation hardness assurance (RHA) up to 100-krad(Si) total ionizing dose (TID)
  • Optimized for offline and DC-to-DC converters
  • Low start-up current (< 0.5 mA)
  • Trimmed oscillator discharge current
  • Automatic feed forward compensation
  • Pulse-by-pulse current limiting
  • Enhanced load response characteristics
  • Undervoltage lockout (UVLO) with hysteresis
  • Double-pulse suppression
  • High-current totem-pole output
  • Internally-trimmed bandgap reference
  • 500-kHz operation
  • Low RO error amplifier

The UC1843B-SP control IC is a radiation hardened pin-for-pin compatible version of the UC1843A-SP. Providing the necessary characteristics to control current-mode switched-mode power supplies, this device has improved features. Start-up current is specified to be less than 0.5 mA and oscillator discharge is trimmed to 8.3 mA. During UVLO, the output stage can sink at least 10 mA at less than 1.2 V for VCC over 5 V.

The UC1843B-SP control IC is a radiation hardened pin-for-pin compatible version of the UC1843A-SP. Providing the necessary characteristics to control current-mode switched-mode power supplies, this device has improved features. Start-up current is specified to be less than 0.5 mA and oscillator discharge is trimmed to 8.3 mA. During UVLO, the output stage can sink at least 10 mA at less than 1.2 V for VCC over 5 V.

다운로드 스크립트와 함께 비디오 보기 동영상

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 시도하십시오.
16개 모두 보기
유형 직함 날짜
* Data sheet UC1843B-SP QML Class V, Radiation Hardened Current-Mode PWM Controller datasheet (Rev. B) PDF | HTML 2020/12/07
* SMD UC1843B-SP SMD 5962-86704 2020/05/19
* Radiation & reliability report Single-Event Effects Test Report of the UC1843B-SP Current Mode PWM Controller 2019/08/09
* Radiation & reliability report UC1843B-SP Neutron Displacement Damage (NDD) Characterization 2019/06/28
* Radiation & reliability report UC1843B-SP total ionizing dose (TID) radiation report 2019/02/28
Application brief DLA Approved Optimizations for QML Products (Rev. A) PDF | HTML 2024/06/05
Selection guide TI Space Products (Rev. J) 2024/02/12
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. A) 2023/08/31
Application note QML flow, its importance, and obtaining lot information (Rev. C) 2023/08/30
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. A) PDF | HTML 2022/11/17
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
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form PDF | HTML 2020/05/18
E-book Radiation Handbook for Electronics (Rev. A) 2019/05/21
User guide UC1843B-SP evaluation module (EVM) user's guide 2019/03/29

설계 및 개발

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

평가 보드

UC1843BEVM-CVAL — UC1843B-SP 전류 모드 PWM 컨트롤러 평가 모듈

The UC1843BEVM-CVAL uses the UC1843A-SP, INA901-SP, LM139AQML-SP, and UC1901-SP to create an isolated feedback flyback with current sensing and over current flags. The UC1843A-SP is used to switch the low side MOSFET of the flyback converter and provide voltage and current to the output. The (...)
사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

UC1843A-SP TINA-TI Transient Reference Design

SLUM674.TSC (6331 KB) - TINA-TI Reference Design
시뮬레이션 모델

UC1843A-SP TINA-TI Transient Spice Model

SLUM675.ZIP (17 KB) - TINA-TI Spice Model
시뮬레이션 모델

UC1843A-SP Unencrypted PSpice Transient Model

SLUM660.ZIP (3 KB) - PSpice Model
계산 툴

SLUC691 UC1843B-SP Flyback Converter Calculator

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨트롤러(외장 FET)
UC1843B-SP 방사능 내성 강화 QMLV, 30V 입력, 1A 단일 출력 500kHz PWM 컨트롤러, 100% 듀티 사이클
레퍼런스 디자인

TIDA-070002 — 20~40VIN, 50W 항공우주 등급 절연 플라이백 DC/DC 과전류 보호 레퍼런스 설계

Spacecraft bus voltages vary from the well-established 28-V to more than the 100-V typically used in highpower commercial communications satellites, this reference design shows an example for a space-grade 50-W isolated intermediary bus converter, while implementing over-current protection (OCP) (...)
Design guide: PDF
회로도: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
CFP (HKU) 10 Ultra Librarian
DIESALE (KGD)

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

지원 및 교육

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