LM5109
- Drives both a high side and low side N-Channel MOSFET
- 1A peak output current (1.0A sink / 1.0A source)
- Independent TTL compatible inputs
- Bootstrap supply voltage to 118V DC
- Fast propagation times (27 ns typical)
- Drives 1000 pF load with 15ns rise and fall times
- Excellent propagation delay matching (2 ns typical)
- Supply rail under-voltage lockout
- Low power consumption
- Pin compatible with ISL6700
The LM5109 is a low cost high voltage gate driver, designed to drive both the high side and the low side N-Channel MOSFETs in a synchronous buck or a half bridge configuration. The floating high-side driver is capable of working with rail voltages up to 100V. The outputs are independently controlled with TTL compatible input thresholds. A robust level shifter technology operates at high speed while consuming low power and providing clean level transitions from the control input logic to the high side gate driver. Under-voltage lockout is provided on both the low side and the high side power rails. The device is available in the SOIC-8 and the thermally enhanced LLP-8 packages.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM5109 100V / 1A Peak Half Bridge Gate Driver datasheet | 2005年 4月 26日 | |
| Application note | Using Half-Bridge Gate Driver to Achieve 100% Duty Cycle for High Side FET | PDF | HTML | 2024年 3月 25日 | |
| Application note | Bootstrap Circuitry Selection for Half Bridge Configurations (Rev. A) | PDF | HTML | 2023年 9月 8日 | |
| Application note | Comparative Analysis of Two Different Methods for Gate-Drive Current Boosting (Rev. A) | PDF | HTML | 2022年 2月 17日 | |
| Application brief | External Gate Resistor Selection Guide (Rev. A) | 2020年 2月 28日 | ||
| Application brief | Understanding Peak IOH and IOL Currents (Rev. A) | 2020年 2月 28日 | ||
| White paper | Power Electronics in Motor Drives: Where is it? (Rev. A) | 2019年 10月 1日 | ||
| More literature | Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A) | 2018年 10月 29日 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
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