홈 전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)
홈
전원 관리
AC/DC 및 DC/DC 컨트롤러(외장 FET)

UCC38C42

활성

상업용, 20V, 저전력 전류 모드 PWM 컨트롤러, 14.5V/9V UVLO, 100% 듀티 사이클

지금 주문
데이터 시트

UCC38C42

활성
데이터 시트 지금 주문

제품 상세 정보

Vin (max) (V) 18 Operating temperature range (°C) 0 to 85 Control mode Current Topology Boost, Buck, Flyback, Forward, SEPIC Rating Catalog Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Multi-topology, Programmable max duty cycle Duty cycle (max) (%) 100
Vin (max) (V) 18 Operating temperature range (°C) 0 to 85 Control mode Current Topology Boost, Buck, Flyback, Forward, SEPIC Rating Catalog Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Multi-topology, Programmable max duty cycle Duty cycle (max) (%) 100
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: 1MHz Maximum
  • 50µA Startup Current, 100µA Maximum
  • Low operating current: 2.3mA (at fOSC = 52kHz)
  • Fast, cycle-by-cycle overcurrent limiting: 35ns
  • Peak driving current: ±1A. Rail-to-rail output:
    • 25ns rise time
    • 20ns fall time
  • ±1% accurate 2.5V 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: 1MHz Maximum
  • 50µA Startup Current, 100µA Maximum
  • Low operating current: 2.3mA (at fOSC = 52kHz)
  • Fast, cycle-by-cycle overcurrent limiting: 35ns
  • Peak driving current: ±1A. Rail-to-rail output:
    • 25ns rise time
    • 20ns fall time
  • ±1% accurate 2.5V 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 7V 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 1MHz, 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 35ns for superior overload protection at the power switch, and a ±1A 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 7V 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 1MHz, 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 35ns for superior overload protection at the power switch, and a ±1A 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.
filter 기타 AC/DC 및 DC/DC 컨트롤러(외장 FET) 찾기
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UCC28C42 활성 산업용, 20V, 저전력 전류 모드 PWM 컨트롤러, 14.5V/9V UVLO, 100% 듀티 사이클 Wider temperature range

기술 자료

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17개 모두 보기
유형 직함 날짜
* Data sheet UCCx8C4x BiCMOS Low-Power Current-Mode PWM Controller datasheet (Rev. I) PDF | HTML 2024/06/13
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
User guide UCC3961/UCC38C43 Reference Design 2002/11/19
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
More literature Seminar 300 Topic 8 - Switching Power Supply Design Review 2001/02/15
More literature Seminar 400 Topic 2 - Design of Flyback Transformers and Filter Inductors 2001/02/15
More literature Seminar 900 Topic 6 - High Power Factor Prereg Using SEPIC 2001/02/15
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 DN-62 Switching Power Supply Topology Voltage Mode vs. Current Mode 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 구매 불가
시뮬레이션 모델

UCC28C42 PSpice Transient Model

SLVM049.ZIP (101 KB) - PSpice Model
다운로드
시뮬레이션 모델

UCC28C42 TINA-TI Transient Start-up Reference Design

SLVM045.TSC (70 KB) - TINA-TI Reference Design
다운로드
시뮬레이션 모델

UCC28C42 TINA-TI Transient Start-up Spice Model

SLVM047.TSM (9 KB) - TINA-TI Spice Model
다운로드
시뮬레이션 모델

UCC28C42 TINA-TI Transient Steady State Reference Design

SLVM046.TSC (70 KB) - TINA-TI Reference Design
다운로드
시뮬레이션 모델

UCC28C42 TINA-TI Transient Steady State Spice Model

SLVM048.TSM (9 KB) - TINA-TI Spice Model
다운로드
시뮬레이션 모델

UCCx8C42 Unencrypted PSpice Transient Model

SLUM522.ZIP (4 KB) - PSpice Model
다운로드
레퍼런스 디자인

PMP30720 — 고효율, 매우 넓은 입력(20VDC~375VDC) 절연 전원 공급 장치 레퍼런스 설계

This reference design uses the UCC28C42 boost controller and the UCC28780 active-clamp flyback controller to generate an isolated output of 24 V at 3.5 A over an ultra-wide input voltage range of 20 V to 375 V. The design also uses the UCC24612 synchronous rectifier controller on the secondary (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP10783 — 85VAC-318VAC 입력 및 15V(0.8A) 출력을 지원하는 AC/DC 벅 컨버터 레퍼런스 디자인

The PMP10783 reference design is an AC/DC buck converter. The input voltage range is 85VAC-318VAC, and has an output of 15V at 0.80A. This compact board design has an efficiency of greater than 80% at full load.
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP10833 — 85-318Vin, 15Vout, 1Aout, AC-DC 벅 컨버터 레퍼런스 디자인

The PMP10833RevA reference design is a compact and thermally efficient design intended to step down a wide range of AC inputs.  This design incorporates the UCC28C42, a current-mode PWM controller, with controllable frequencies up to 1Mhz.
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP10834 — 85-265Vin, 5Vout, 1Aout, AC-DC 벅 컨버터 레퍼런스 디자인

The PMP10834RevA reference design is a compact and thermally efficient design intended to step down a wide range of AC inputs (85VAC to 265VAC). This non-isolated Flybuck design incorporates the UCC28C42 PWM with an optocoupler feedback to provide 1% output voltage regulation. All the circuit (...)
Test report: PDF
회로도: PDF
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
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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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