전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)

UCC28701

활성

PSR, NTC 옵션 및 0mV 케이블 보정을 지원하는 정전압, 정전류 PWM

제품 상세 정보

Operating temperature range (°C) -20 to 125 Control mode Primary-side regulation Topology Buck, Flyback Rating Catalog Features CC/CV output regulation, Cable compensation, DCM, Leading edge blanking, NTC resistor interface, Overcurrent protection, PSR, Primary-side regulated, Quasi-Resonant, Soft start, Valley switching Duty cycle (max) (%) 99
Operating temperature range (°C) -20 to 125 Control mode Primary-side regulation Topology Buck, Flyback Rating Catalog Features CC/CV output regulation, Cable compensation, DCM, Leading edge blanking, NTC resistor interface, Overcurrent protection, PSR, Primary-side regulated, Quasi-Resonant, Soft start, Valley switching Duty cycle (max) (%) 99
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • < 30-mW No-Load Power for 5-Star Rating
  • Primary-Side Regulation (PSR) Eliminates Opto-Coupler
  • ±5% Voltage and Current Regulation
  • 130-kHz Maximum Switching Frequency Enables High-Power
    Density Charger Designs
  • Quasi-Resonant Valley-Switching Operation for Highest
    Overall Efficiency
  • Patent-Pending Frequency-Jitter Scheme to Ease EMI
    Compliance
  • Wide VDD Range Allows Small Bias Capacitor
  • Clamped Gate-Drive Output for MOSFET
  • Protection Functions: Overvoltage, Low-Line, and
    Overcurrent
  • Programmable Cable Compensation (UCC28700 Only)
  • NTC Resistor Interface (UCC28701, UCC28702 and UCC28703
    Only) With Fixed Cable Compensation Options
  • SOT-23 Package
  • < 30-mW No-Load Power for 5-Star Rating
  • Primary-Side Regulation (PSR) Eliminates Opto-Coupler
  • ±5% Voltage and Current Regulation
  • 130-kHz Maximum Switching Frequency Enables High-Power
    Density Charger Designs
  • Quasi-Resonant Valley-Switching Operation for Highest
    Overall Efficiency
  • Patent-Pending Frequency-Jitter Scheme to Ease EMI
    Compliance
  • Wide VDD Range Allows Small Bias Capacitor
  • Clamped Gate-Drive Output for MOSFET
  • Protection Functions: Overvoltage, Low-Line, and
    Overcurrent
  • Programmable Cable Compensation (UCC28700 Only)
  • NTC Resistor Interface (UCC28701, UCC28702 and UCC28703
    Only) With Fixed Cable Compensation Options
  • SOT-23 Package

The UCC28700 family of flyback power supply controllers provides Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler. The devices process information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current. Low start-up current, dynamically controlled operating states and a tailored modulation profile support very low standby power without sacrificing start-up time or output transient response.

Control algorithms in the UCC28700 family allow operating efficiencies to meet or exceed applicable standards. The output drive interfaces to a MOSFET power switch. Discontinuous Conduction Mode (DCM) with valley switching reduces switching losses. Modulation of switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges.

The controllers have a maximum switching frequency of 130 kHz and always maintain control of the peak-primary current in the transformer. Protection features help keep primary and secondary component stresses in check. The UCC28700 allows the level of cable compensation to be programmed. The UCC28701, UCC28702, and UCC28703 devices allow remote temperature sensing using a Negative Temperature Coefficient (NTC) resistor while providing fixed cable-compensation levels.

The UCC28700 family of flyback power supply controllers provides Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler. The devices process information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current. Low start-up current, dynamically controlled operating states and a tailored modulation profile support very low standby power without sacrificing start-up time or output transient response.

Control algorithms in the UCC28700 family allow operating efficiencies to meet or exceed applicable standards. The output drive interfaces to a MOSFET power switch. Discontinuous Conduction Mode (DCM) with valley switching reduces switching losses. Modulation of switching frequency and primary current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and line ranges.

The controllers have a maximum switching frequency of 130 kHz and always maintain control of the peak-primary current in the transformer. Protection features help keep primary and secondary component stresses in check. The UCC28700 allows the level of cable compensation to be programmed. The UCC28701, UCC28702, and UCC28703 devices allow remote temperature sensing using a Negative Temperature Coefficient (NTC) resistor while providing fixed cable-compensation levels.

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관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
UCC28702 활성 PSR, NTC 옵션 및 150mV 케이블 보정을 지원하는 정전압, 정전류 PWM Cable compensation threshold is 150 mV

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
11개 모두 보기
유형 직함 날짜
* Data sheet UCC2870x Constant-Voltage, Constant-Current Controller With Primary-Side Regulation datasheet (Rev. A) PDF | HTML 2014/12/12
Application note Flyback Aux Winding OVP and UVLO Fault Sensing Design and Troubleshooting Tips PDF | HTML 2021/08/31
Application note Minimize Standby Consumption for UCC287XX Family 2019/08/01
Application note Selecting Electrolitic Bus Capacitor for Universal Input 2018/07/17
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25
Application note Troubleshooting TI PSR controllers 2016/10/03
White paper Control Challenges for Low Power AC/DC Converters 2015/10/02
White paper Control Challenges for Low Power AC/DC Converters (PPT) 2015/10/02
Application note Is Your IGBT Gate-Driver Power Supply Optimized 2015/03/12
Application note UCC28700 5-W USB Flyback Design Review (Rev. C) 2014/02/21
More literature Exposing the Inner Behavior of a Quasi-Resonant Flyback Converter 2013/10/29

설계 및 개발

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

평가 보드

UCC28711EVM-160 — UCC28711 평가 모듈

The Texas Instruments UCC28711EVM-160 evaluation module (EVM) helps designers evaluate the performance of the UCC28711 Constant-Voltage, Constant-Current PWM with Primary-Side Regulation. The 5W EVM is used for evaluating an off line adapter for USB applications. It converts a 90V to 265V RMS (...)
사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

UCC2870x PSPICE Transient Model

SLUM455.ZIP (131 KB) - PSpice Model
시뮬레이션 모델

UCC2870x TINA-TI Transient Reference Design

SLUM619.TSC (195 KB) - TINA-TI Reference Design
시뮬레이션 모델

UCC2870x TINA-TI Transient Spice Model

SLUM617.ZIP (101 KB) - TINA-TI Spice Model
계산 툴

SLUC381 MathCAD Design Tool

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨트롤러(외장 FET)
UCC28700 PSR 및 프로그래머블 케이블 보상을 지원하는 정전압, 정전류 PWM UCC28700-Q1 오토모티브 등급 소형 1차측 조정 PWM 컨트롤러 UCC28701 PSR, NTC 옵션 및 0mV 케이블 보정을 지원하는 정전압, 정전류 PWM UCC28702 PSR, NTC 옵션 및 150mV 케이블 보정을 지원하는 정전압, 정전류 PWM UCC28703 PSR, NTC 옵션 및 300mV 케이블 보정을 지원하는 정전압, 정전류 PWM
계산 툴

SLUC408 UCC28700 Excel 97 Design Tool

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨트롤러(외장 FET)
UCC28700 PSR 및 프로그래머블 케이블 보상을 지원하는 정전압, 정전류 PWM UCC28700-Q1 오토모티브 등급 소형 1차측 조정 PWM 컨트롤러 UCC28701 PSR, NTC 옵션 및 0mV 케이블 보정을 지원하는 정전압, 정전류 PWM UCC28702 PSR, NTC 옵션 및 150mV 케이블 보정을 지원하는 정전압, 정전류 PWM UCC28703 PSR, NTC 옵션 및 300mV 케이블 보정을 지원하는 정전압, 정전류 PWM
레퍼런스 디자인

PMP12082 — 3상 AC 입력, 삼중 출력 바이어스 전원 레퍼런스 디자인

The PMP12082 is a bias supply reference design with 3-phase input (80VAC~280VAC) and triple outputs - 7V/1.4A, 3.3V/500mA, and 3.3V/300mA. UCC28701 primary side regulation controller is applied for a Cascode-MOSFET flyback converter with dual output windings. One winding supplies 7V/1.4A output (...)
Test report: PDF
회로도: PDF
레퍼런스 디자인

TIDA-00182 — 8출력을 지원하는 강화 절연 IGBT 게이트 드라이브 플라이백 전원 공급 장치 레퍼런스 디자인

This reference design provides reinforced isolated positive and negative voltage rails required for Insulated Gate Bipolar Transistor (IGBT) gate drivers from a single 24-volt DC input supply. Utilizing a flyback isolated control topology, this reference design provides isolation compliant to (...)
Design guide: PDF
회로도: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
SOT-23 (DBV) 6 Ultra Librarian

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

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