LM2724A
- Shoot-Through Protection
- Input Under-Voltage-Lock-Out
- 3A Peak Driving Current
- 195µA Quiescent Current
- 28V Input Voltage in Buck Configuration
- SOIC-8 and WSON Packages
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The LM2724A is a dual N-channel MOSFET driver which can drive both the top and bottom MOSFETs in a push-pull structure simultaneously. The LM2724A takes a logic input and splits it into two complimentary signals with a typical 20ns dead time in between. The built-in cross-conduction protection circuitry prevents the top and bottom MOSFETs from turning on simultaneously. With a bias voltage of 5V, the peak sourcing and sinking current for each driver of the LM2724A is about 3A. Input UVLO (Under-Voltage-Lock-Out) ensures that all the driver outputs stay low until the supply rail exceeds the power-on threshold during system power on, or after the supply rail drops below power-on threshold by a specified hysteresis during system power down. The cross-conduction protection circuitry detects both driver outputs and will not turn on a driver until the other driver output is low. The top gate voltage needed by the top MOSFET is obtained through an external boot-strap structure. When not switching, the LM2724A only draws up to 195µA from the 5V rail. The synchronization operation of the bottom MOSFET can be disabled by pulling the SYNC pin to ground.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | LM2724A High Speed 3A Synchronous MOSFET Driver 数据表 (Rev. C) | 2013-3-28 | |||
| 应用手册 | 使用半桥栅极驱动器实现高侧 FET 的 100% 占空比 | PDF | HTML | 英语版 | PDF | HTML | 2024-3-26 | |
| 应用手册 | 针对半桥配置的自举电路选择 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2023-9-14 | |
| 应用手册 | 比较分析两种不同的可提高栅极驱动电流的方法 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2022-4-1 | |
| 应用简报 | 适用于栅极驱动器的外部栅极电阻器设计指南 (Rev. A) | 英语版 (Rev.A) | 2020-4-29 | |||
| 应用简报 | 了解峰值源电流和灌电流 (Rev. A) | 英语版 (Rev.A) | 2020-4-29 |
设计与开发
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| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |