LM749X0-CALC — Design calculator for LM74900-Q1 and LM74910-Q1 devices
支援產品和硬體
產品
理想二極體與 ORing 控制器
- LM74900-Q1 — 具有斷路器、欠電壓與過電壓保護和故障輸出的車用理想二極體
- LM74910-Q1 — 具有斷路器、200-kHz ACS、欠電壓與過電壓保護的車用理想二極體
The LM749x0-Q1 ideal diode controller drives and controls external back to back N-Channel MOSFETs to emulate an ideal diode rectifier with power path ON/OFF control with overcurrent and overvoltage protection. The wide input supply of 3V to 65V allows protection and control of 12V and 24V automotive battery powered ECUs. The device can withstand and protect the loads from negative supply voltages down to –65V. An integrated ideal diode controller (DGATE) drives the first MOSFET to replace a Schottky diode for reverse input protection and output voltage holdup. With a second MOSFET in the power path the device allows load disconnect (ON/OFF control) in case of overcurrent and overvoltage events using HGATE control. The device has integrated current sense amplifier which provides accurate current monitoring with adjustable overcurrent and short circuit thresholds. The device features an adjustable overvoltage cut-off protection feature. The device features a SLEEP mode which enables ultra-low quiescent current consumption (6µA) and at the same time providing refresh current to the always ON loads when vehicle is in the parking state. The LM749x0-Q1 has a maximum voltage rating of 65V.
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM749x0-Q1 Automotive Ideal Diode With Circuit Breaker, Undervoltage, and Overvoltage Protection With Fault Output datasheet (Rev. C) | PDF | HTML | 2025年 8月 12日 |
| Test report | Power Delivery Reference Design for AMD Versal™ AI Edge Series | PDF | HTML | 2024年 3月 25日 | |
| Functional safety information | LM749x0-Q1 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | 2024年 2月 29日 | |
| Application note | Power Supply Design for AMD Versal™ AI Edge Series | PDF | HTML | 2024年 1月 29日 | |
| Application note | Addressing Automotive Reverse Battery Protection Topologies with LM749x0-Q1 | PDF | HTML | 2023年 6月 13日 |
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)。
在反向電池保護應用中,LM74900-Q1 評估模組可評估 LM74900-Q1 理想二極體控制器的運作及性能。此評估模組示範 LM74900-Q1 如何控制兩個背對背 N 通道電源 MOSFET,模擬具有電源路徑開/關控制、過電流和過電壓防護的理想二極體整流器。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGE) | 24 | Ultra Librarian |
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。
Second revision release of design calculator for LM74900-Q1 and LM74910-Q1 Devices