SM72445
- Renewable Energy Grade
- 110kHz,135kHz or 215kHz PWM operating frequency
- Panel Mode pin for optional bypass switch control
- Programmable maximum power point tracking
- Photovoltaic solar panel voltage and current diagnostic
- Single inductor four switch buck-boost converter control
- I2C interface for communication
- Output overvoltage protection
- Over-current protection
- Package
- TSSOP-28
The SM72445 is a programmable MPPT controller capable of controlling four PWM gate drive signals for a 4-switch buckboost converter. The SM72445 also features a proprietary algorithm called Panel Mode (PM) which allows for the panel to be connected directly to the output of the power optimizer circuit when the input to output voltage ratio is close to 1. This provides an opportunity to optimize the efficiency of the power optimizer when the load is naturally matching the maximum power point of the panel. Along with the SM72295 (Photovoltaic Full Bridge Driver), it creates a solution for an MPPT configured DC-DC converter with efficiencies up to 99.5% (when operating with dedicated PM switches). Integrated into the chip is an 8-channel, 10 bit A/D converter used to sense input and output voltages and currents, as well as IC configuration. Externally programmable values include maximum output voltage and current as well as different settings for slew rate, soft-start and Panel Mode.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | Prog Max Pwr Point Tracking Cntrl w/ Adjustable PWM Frequency datasheet | 2012/3/7 | |||
| 使用指南 | AN-2241 SM72445 Evaluation Board (Rev. A) | 2013/5/3 |
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)。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| TSSOP (PW) | 28 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。