計算工具
產品規格表
UCC28701
- < 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.
技術文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 11 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | UCC2870x Constant-Voltage, Constant-Current Controller With Primary-Side Regulation datasheet (Rev. A) | PDF | HTML | 2014年 12月 12日 |
| Application note | Flyback Aux Winding OVP and UVLO Fault Sensing Design and Troubleshooting Tips | PDF | HTML | 2021年 8月 31日 | |
| Application note | Minimize Standby Consumption for UCC287XX Family | 2019年 8月 1日 | ||
| Application note | Selecting Electrolitic Bus Capacitor for Universal Input | 2018年 7月 17日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Application note | Troubleshooting TI PSR controllers | 2016年 10月 3日 | ||
| White paper | Control Challenges for Low Power AC/DC Converters | 2015年 10月 2日 | ||
| White paper | Control Challenges for Low Power AC/DC Converters (PPT) | 2015年 10月 2日 | ||
| Application note | Is Your IGBT Gate-Driver Power Supply Optimized | 2015年 3月 12日 | ||
| Application note | UCC28700 5-W USB Flyback Design Review (Rev. C) | 2014年 2月 21日 | ||
| More literature | Exposing the Inner Behavior of a Quasi-Resonant Flyback Converter | 2013年 10月 29日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
開發板
UCC28711EVM-160 — UCC28711 評估模組
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 (...)
使用指南: PDF
計算工具
SLUC408 — UCC28700 Excel 97 Design Tool
支援產品和硬體
產品
AC/DC & DC/DC controllers (external FET)
參考設計
PMP12082 — 三相 AC 輸入、三路輸出偏壓電源參考設計
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 (...)
參考設計
TIDA-00182 — 含 8 輸出的強化隔離式 IGBT 柵極驅動器返馳電源參考設計
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 (...)
| 封裝 | 引腳 | 下載 |
|---|---|---|
| SOT-23 (DBV) | 6 | 檢視選項 |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點