홈 전원 관리 AC/DC & DC/DC controllers (external FET)
홈
전원 관리
AC/DC & DC/DC controllers (external FET)

UCC28C44

활성

산업용, 20V, 저전력 전류 모드 PWM 컨트롤러, 14.5V/9V UVLO, 50% 듀티 사이클

지금 주문
데이터시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
비교 대상 장치보다 업그레이드된 기능을 지원하는 즉각적 대체품
UCC28C54 활성 산업용, 30V, 저전력 전류 모드 PWM 컨트롤러, 14.5V/9V UVLO, 50% 듀티 사이클 Higher supply voltage, lower start-up and operating current, and better efficiency.

UCC28C44

활성
데이터시트 지금 주문

제품 상세 정보

Vin (max) (V) 18 Operating temperature range (°C) -40 to 125 Control mode Current Topology Boost, Buck, Flyback, Forward, SEPIC Rating Catalog Duty cycle (max) (%) 50
Vin (max) (V) 18 Operating temperature range (°C) -40 to 125 Control mode Current Topology Boost, Buck, Flyback, Forward, SEPIC Rating Catalog Duty cycle (max) (%) 50
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Enhanced replacement for UCx84x and UCx84xA family with pin-to-pin compatibility
  • Operating frequency: 1 MHz Maximum
  • 50-µA Startup Current, 100-µA Maximum
  • Low operating current: 2.3 mA (at fOSC = 52 kHz)
  • Fast, cycle-by-cycle overcurrent limiting: 35-ns
  • Peak driving current: ±1-A. Rail-to-rail output:
    • 25-ns rise time
    • 20-ns fall time
  • ±1% accurate 2.5-V error amplifier reference
  • Trimmed oscillator discharge current
  • Undervoltage lockout protections
  • VSSOP-8 package minimizes board space
  • Enhanced replacement for UCx84x and UCx84xA family with pin-to-pin compatibility
  • Operating frequency: 1 MHz Maximum
  • 50-µA Startup Current, 100-µA Maximum
  • Low operating current: 2.3 mA (at fOSC = 52 kHz)
  • Fast, cycle-by-cycle overcurrent limiting: 35-ns
  • Peak driving current: ±1-A. Rail-to-rail output:
    • 25-ns rise time
    • 20-ns fall time
  • ±1% accurate 2.5-V error amplifier reference
  • Trimmed oscillator discharge current
  • Undervoltage lockout protections
  • VSSOP-8 package minimizes board space

The UCCx8C4x family are high-performance, current-mode PWM controllers. The UCCx8C4x is an enhanced BiCMOS version with pin-for-pin compatibility to the industry standard UCx84xA family and UCx84x family of PWM controllers. The BiCMOS technology offers lower power consumption to improve efficiency as well as faster current sense and oscillator frequency.

In addition, lower startup voltage versions of 7 V are offered as UCCx8C40 and UCCx8C41 for use in battery systems. The UCC28C4x series is specified for operation from –40°C to 125°C, and the UCC38C4x series is specified for operation from 0°C to 85°C.

Providing necessary features to control fixed frequency, peak current-mode power supplies, this family offers the following performance advantages. The device offers high-frequency operation up to 1 MHz, suitable for high speed applications. The trimmed discharge current enables more precise programming of the maximum duty cycle and dead-time limit when compared to the UCCx8C4x family. Reduced start-up and operating currents minimizes start-up loss and low operating power consumption for improved efficiency. The device also features a fast current-sense-to-output delay time of 35 ns for superior overload protection at the power switch, and a ±1-A peak output current capability with improved rise and fall times for driving large external MOSFETs directly.

The UCCx8C4x family is offered in 8-pin VSSOP (DGK) and 8-pin SOIC (D) packages.

The UCCx8C4x family are high-performance, current-mode PWM controllers. The UCCx8C4x is an enhanced BiCMOS version with pin-for-pin compatibility to the industry standard UCx84xA family and UCx84x family of PWM controllers. The BiCMOS technology offers lower power consumption to improve efficiency as well as faster current sense and oscillator frequency.

In addition, lower startup voltage versions of 7 V are offered as UCCx8C40 and UCCx8C41 for use in battery systems. The UCC28C4x series is specified for operation from –40°C to 125°C, and the UCC38C4x series is specified for operation from 0°C to 85°C.

Providing necessary features to control fixed frequency, peak current-mode power supplies, this family offers the following performance advantages. The device offers high-frequency operation up to 1 MHz, suitable for high speed applications. The trimmed discharge current enables more precise programming of the maximum duty cycle and dead-time limit when compared to the UCCx8C4x family. Reduced start-up and operating currents minimizes start-up loss and low operating power consumption for improved efficiency. The device also features a fast current-sense-to-output delay time of 35 ns for superior overload protection at the power switch, and a ±1-A peak output current capability with improved rise and fall times for driving large external MOSFETs directly.

The UCCx8C4x family is offered in 8-pin VSSOP (DGK) and 8-pin SOIC (D) packages.
open-in-new 기타 AC/DC & DC/DC controllers (external FET) 찾기
다운로드 스크립트와 함께 비디오 보기 동영상

기술 문서

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
모두 보기12
유형 직함 날짜
* Data sheet UCCx8C4x BiCMOS Low-Power Current-Mode PWM Controller datasheet (Rev. H) PDF | HTML 2022/09/16
Functional safety information UCCx8C4x Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2022/09/12
Application note Conditioning a Switch-mode Power Supply Current Signal Using TI Op Amps (Rev. A) PDF | HTML 2021/06/11
Application note Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B) 2019/03/12
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25
Application note UCC38C44 12-V Isolated Bias Supply (Rev. A) 2008/10/09
User guide UCC38C42 30-W Synchronous Buck Converter Reference Design 2003/02/04
Application note UCC38C42 25-W Forward Converter 2002/09/06
Application note UCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers 2002/02/07
Application note DN-30 Programmable Electronic Circuit Breaker 1999/09/05
Application note DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802 1999/09/05
Application note U-111, Practical Considerations in Current Mode Power Supplies 1999/09/05

설계 및 개발

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

평가 보드

UCC28C56EVM-066 — (보조 권선을 사용한) 1차측 컨트롤 플라이백 레귤레이터용 UCC28C56H-Q1 평가 모듈

UCC28C56EVM-066은 고도로 효율적인 EV 및 HEV 오토모티브 파워 트레인용 1차측 제어(보조 권선 사용) 플라이백 보조 전원 공급 장치입니다. 이 설계는 800V 배터리 시스템에 15.2VTYP, 40W 출력을 제공합니다. 125V~1,000V의 입력 전압 범위에서 40W를 제공합니다. 정확한 출력 전압은 부하에 따라 다릅니다. 이 설계는 40V~125V 입력 범위에서 20W를 공급합니다. 이 EVM은 1,700V SiC(실리콘 카바이드) MOSFET을 사용하기 때문에 800V 배터리 시스템에 이상적입니다.

사용 설명서: PDF | HTML
TI.com에서 구매할 수 없습니다
시뮬레이션 모델

UCCx8C44 Unencrypted PSpice Transient Model

SLUM532.ZIP (5 KB) - PSpice Model
다운로드
패키지 핀 다운로드
SOIC (D) 8 옵션 보기
VSSOP (DGK) 8 옵션 보기
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

지원 및 교육

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

포럼 주제 모두 보기(영문)

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