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

UC2856-Q1

새 설계에 권장하지 않음

차량용 8V~40V, 최대 1MHz 전류 모드 PWM 컨트롤러

지금 주문하기
데이터 시트
UC2856-Q1은(는) 새 설계에 권장하지 않습니다.
이 제품은 기존 고객을 위해 계속 제공됩니다. 새로운 설계는 대체 제품을 고려해야 합니다.
open-in-new 대안 비교
비교 대상 장치와 유사한 기능
UCC2808A-2 활성 방전 트랜지스터, 4.3/4.1V UVLO, -40°C~85°C를 지원하는 저전력 전류 모드 푸시-풀 PWM Upgraded to BiCMOS

UC2856-Q1

새 설계에 권장하지 않음
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
SOIC (DW) 16 106.09 mm² 10.3 x 10.3
  • Qualified for Automotive Applications
  • Pin-for-Pin Compatible With the UC2846
  • 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
  • ESD Protection
    • 4-kV Human-Body Model (HBM)
    • 500-V Charged-Device Model (CDM)
  • Qualified for Automotive Applications
  • Pin-for-Pin Compatible With the UC2846
  • 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
  • ESD Protection
    • 4-kV Human-Body Model (HBM)
    • 500-V Charged-Device Model (CDM)

The UC2856 is a high performance version of the popular UC2846 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 3-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, 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 ESD protection (HBM) on all pins.

The UC2856 is a high performance version of the popular UC2846 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 3-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, 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 ESD protection (HBM) on all pins.
filter 기타 AC/DC 컨트롤러 찾기
다운로드

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하세요.
1개 모두 보기
상위 문서 유형 직함 형식 옵션 날짜
* Data sheet Improved Current-Mode PWM Controller datasheet (Rev. B) 2011/05/26

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