現在提供此產品的更新版本
功能相同，但針腳輸出與所比較的裝置不同。
LM5022
- Internal 60-V start-up regulator
- 1-A Peak MOSFET gate driver
- VIN Range: 6 V to 60 V (operates down to 3 V after start-up)
- Duty cycle limit of 90%
- Programmable UVLO with hysteresis
- Cycle-by-cycle current limit
- External synchronizable (AC-coupled)
- Single resistor oscillator frequency set
- Slope compensation
- Adjustable soft start
- 10-Pin VSSOP package
The LM5022 device is a high-voltage, low-side, N-channel MOSFET controller ideal for use in boost and SEPIC regulators. It contains all of the features required to implement single-ended primary topologies. Output voltage regulation is based on current-mode control, which eases the design of loop compensation while providing inherent input voltage feedforward. The LM5022 includes a start-up regulator that operates over a wide input range of 6 V to 60 V. The PWM controller is designed for high-speed capability including an oscillator frequency range up to 2.2 MHz and total propagation delays less than 100 ns. Additional features include an error amplifier, precision reference, line undervoltage lockout, cycle-by-cycle current limit, slope compensation, soft start, external synchronization capability, and thermal shutdown. The LM5022 is available in the 10-pin VSSOP 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 | LM5022 60-V Low-Side Controller for Boost and SEPIC datasheet (Rev. J) | PDF | HTML | 2018/5/21 | ||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 技術文章 | What is behind isolated DC/DC converter voltage regulation? | PDF | HTML | 2015/8/31 | |||
| 白皮書 | How to design boost, SEPIC or flyback regulators with wide VIN power ICs | 2014/7/29 | ||||
| 應用說明 | Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co | 2014/7/11 | ||||
| 應用說明 | AN-1696 Designing a Boost LED Driver Using the LM5022 (Rev. B) | 2013/5/6 | ||||
| 應用說明 | AN-1656 Design Challenges of Switching LED Drivers (Rev. A) | 2013/5/3 |
設計與開發
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LM5022EVAL — 適用於升壓的 60V Wide Vin 低壓側控制器評估板
The LM5022EVM evaluation module (EVM) is a fixed frequency (500-kHz) non-synchronous boost converter providing fixed 40.0-V output at up to 500 mA from a 9-V to 16-V input. The EVM is designed to start up from a single supply, with no additional bias voltage required for start-up. The module uses (...)
FLYBUCK-FLYBACK-DESIGN-CALC — Flybuck / Flyback Calculator
此工具協助電源供應工程師根據規格選擇正確的隔離式 DC-DC 拓撲結構。根據選擇的拓撲結構，計算機還會推薦適合設計的 IC。
許多 TI 參考設計包含 LM5022
使用我們的參考設計選擇工具，以檢視並找出最適合您的應用和參數的設計。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSSOP (DGS) | 10 | 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。