TLV61046A
- Input voltage range: 1.8 V to 5.5 V, down to 1.6 V after start-up
- Output voltage up to 28 V
- Integrated power diode and isolation switch
- 980-mA (typical) switch current
- Up to 85% efficiency at 3.6-V input and 12-V output
- ±2.5% output voltage accuracy
- Power save operation mode at light load
- Internal 7-ms soft start time
- True disconnection between input and output during shutdown
- Output short circuit protection
- Output overvoltage protection
- Thermal shutdown protection
- 3-mm × 3-mm SOT23-6 package
- Create a custom design using the TLV61046A with the WEBENCH Power Designer
The TLV61046A is a highly-integrated boost converter designed for applications such as PMOLED panel, LCD bias supply, and sensor module. The TLV61046A integrates a 30-V power switch, an input to output isolation switch, and a rectifier diode. It can output up to 28 V from input of a Li+ battery or two alkaline batteries in series.
The TLV61046A operates with a switching frequency at 1.0 MHz. This allows the use of small external components. The TLV61046A has an internal default 12-V output voltage setting by connecting the FB pin to the VIN pin. Thus it only needs three external components to get 12-V output voltage. The TLV61046A has typical 980-mA switch current limit. It has 7-ms built-in soft start time to reduce the inrush current. When the TLV61046A is in shutdown mode, the isolation switch disconnects the output from input to minimize the leakage current. The TLV61046A also implements output short circuit protection, output overvoltage protection, and thermal shutdown.
The TLV61046A is available in a 6-pin 3-mm x 3-mm SOT23-6 package.
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 | TLV61046A 28-V Output Voltage Boost Converter with Power Diode and Isolation Switch datasheet (Rev. B) | PDF | HTML | 2021/2/1 | ||
| 應用說明 | Using External Bias to Broaden Input Voltage Range of Boost Converters | PDF | HTML | 2021/11/8 | |||
| 應用說明 | How to Improve the Loading Capability of TLV61046A During Start-up | 2019/8/1 | ||||
| 技術文章 | Power a RS-485 transceiver with a high efficiency flyback converter | PDF | HTML | 2017/12/27 | |||
| 技術文章 | Drive a piezoelectric buzzer with a simple boost converter | PDF | HTML | 2017/10/26 | |||
| 應用說明 | Input Current Limit Solution for USB-Supplied Power System | 2017/8/3 |
設計與開發
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TLV61046AEVM-833 — 評估板 - 整合二極體和隔離式 MOSFET 的 28V 輸出電壓升壓轉換器
TLV61046AEVM 可協助評估整合飛輪二極體及隔離 MOSFET 的升壓轉換器 TLV61046A 的電氣和熱性能。TLV61046AEVM 的外部元件經選擇以涵蓋大多數標準應用情境。這些元件可根據 TLV61046A 產品規格表進行修改，以滿足特殊要求。
TLV61046A Unencrypted PSpice Transient Model Package (Rev. A)
PMP15034 — 符合成本效益的高電壓、壓電式蜂鳴器驅動器參考設計
TIDA-010249 — 四通道同步震動感測器介面參考設計
TIDA-050032 — 5-V 輸入、4000-VAC 隔離電源供應器參考設計
此參考設計推出 5V、200mA 輸出返馳 DC-DC 電源轉換器，聚焦於資料集中器中的 RS485 應用。
4000-VAC 隔離電源電路是一款簡單且符合成本效益的解決方案，因為其使用完全整合轉換器 TLV61046A 和市面現有的變壓器。整個電路可輕鬆複製到系統電路板，為 RS485 裝置供電，大幅減少電路圖和佈線圖的設計時間。
使用者指南有提供例如效率、負載調整及操作波形等詳細工作台測試結果以供參考。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBV) | 6 | 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。