계산 툴
데이터시트
UCC28711
- < 10-mW No-Load Power
- Primary-Side Regulation (PSR) Eliminates Opto-Coupler
- ±5% Voltage and Current Regulation Across Line and Load
- 700-V Start-Up Switch
- 100-kHz Maximum Switching Frequency Enables High-Power Density Charger Designs
- Resonant Valley-Switching Operation for Highest Overall Efficiency
- Frequency Jitter to Ease EMI Compliance
- Wide VDD Range Allows Small Bias Capacitor
- Clamped Gate-Drive Output for MOSFET
- Overvoltage, Low-Line, and Overcurrent Protection Functions
- Programmable Cable Compensation (UCC28710)
- NTC Resistor Interface (UCC28711, UCC28712 and UCC28713) with Fixed Cable Compensation Options
- SOIC-7 Package
- Create a Custom Design Using the UCC28710 With the WEBENCH® Power Designer
The UCC2871x family of flyback power supply controllers provides isolated-output 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.
An internal 700-V start-up switch, dynamically-controlled operating states and a tailored modulation profile support ultra-low standby power without sacrificing start-up time or output transient response.
Control algorithms in the UCC28710 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 100 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 UCC28710 allow the cable compensation to be programmed. The UCC28711, UCC28712 and UCC28713 devices allow remote temperature sensing using a negative temperature coefficient (NTC) resistor while providing fixed cable-compensation levels.
기술 문서
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모두 보기10 | 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | UCC2871x Constant-Voltage, Constant-Current Controller With Primary-Side Regulation datasheet (Rev. C) | PDF | HTML | 2017/06/30 |
| Selection guide | Current Sense Amplifiers (Rev. E) | 2021/09/20 | ||
| 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 | ||
| 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 | ||
| More literature | Exposing the Inner Behavior of a Quasi-Resonant Flyback Converter | 2013/10/29 | ||
| EVM User's guide | Using the UCC28711EVM-160 | 2012/09/14 |
설계 및 개발
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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
평가 보드
UCC28740EVM-525 — UCC28740EVM-525 평가 모듈
The UCC28740EVM-525 evaluation module is a 10W off-line discontinuous mode (DCM) flyback converter that provides constant-voltage (CV) and constant-current (CC) output regulation. It uses optical coupler feedback for tight voltage regulation and improved the transient response to large load steps (...)
사용 설명서: PDF
시뮬레이션 모델
UCC2871x TINA-TI Transient Reference Design
SLUM539.TSC (224 KB) - TINA-TI Reference Design
레퍼런스 디자인
TIDA-00440 — 절연 저항 파악을 위한 누설 전류 측정 레퍼런스 디자인
This reference design measures insulation resistance up to 100 MΩ. It has an on-board isolated 500-Vdc power supply and an isolated signal conditioning circuit to measure the leakage current. This design is useful to find leakage due to insulation breakdown in transformer and motor windings.
레퍼런스 디자인
PMP21927 — 15W 다중 출력 오프라인 플라이백 레퍼런스 설계
This reference design takes a universal Vac input and creates three isolated 15-Vdc outputs. The main output can be loaded up to 1-A and achieves over 86% efficiency. The other isolated 15-V outputs can be loaded to 50-mA. These outputs have linear regulators to keep the voltages within 1% (...)
레퍼런스 디자인
TIDA-00173 — 모터 드라이브를 위한 400V ~ 690V AC 입력, 50W 플라이백 절연 전원 공급 장치 레퍼런스 디자인
This reference design provides isolated +24V (45W), ±16 V (4.5W), and +6V (0.5W) outputs to power the control electronics in variable speed drives. The power supply can be either powered directly from 3-phase AC mains (380Vac to 690Vac) or can be powered from the DC-link voltage (...)
레퍼런스 디자인
TIDA-00315 — 서보 드라이브를 위한 100/200Vac 입력, 30W 절연 전원 공급 장치 레퍼런스 디자인
This reference design provides isolated 24Vdc, 16Vdc (x3) and 6V outputs to power the control electronics, IGBT module and fan for 100Vac/200Vac input servo drives. The power supply can be either powered directly from a single or 3- phase AC mains or can be powered from the DC link voltage. This (...)
레퍼런스 디자인
PMP11135 — 85-265VAC 입력, 13.5V/0.9A PSR 플라이백 레퍼런스 디자인
The PMP11135 reference design uses the UCC28711 to provide an isolated 13.5V at 0.9A output. The UCC28711 implements primary-side regulation, eliminating the need for an opto-coupler and reducing the size and cost of the design. This design meets Class B conducted emissions without the (...)
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| SOIC (D) | 7 | 옵션 보기 |
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