功能框圖
Highlighted components are Nexperia focus products
產(chǎn)品
設(shè)計(jì)考慮因素
- 當(dāng)電路板插入運(yùn)行中的系統(tǒng)時(shí)，重要的是要謹(jǐn)慎地控制沖擊電流，以保護(hù)電路板上的器件并確保系統(tǒng)的其他部分不會(huì)遭遇電源中斷。
- 為高效可靠地控制該電流，需要使用具有出色線性模式性能和寬安全工作區(qū)域(SOA)的MOSFET
- 一旦安全地完成了替換電路板的安裝，MOSFET便會(huì)轉(zhuǎn)為完全開啟。在這種工作模式下，最重要的是低RDS(on)值，它可保證溫度盡可能的低且系統(tǒng)效率最高
Nexperia實(shí)際應(yīng)用
“評(píng)估集成PMBus的ADM1272高壓正熱插拔控制器及數(shù)字功率監(jiān)控器”中引用的PSMN4R8-100BSE
Nexperia實(shí)際應(yīng)用
“評(píng)估集成PMBus的ADM1272高壓正熱插拔控制器及數(shù)字功率監(jiān)控器”中引用的PSMN4R8-100BSE
The importance of SOA - Quick Learning
When a MOSFET is selected for a high power designs, engineers often select a device based on its on-resistance. Lower on-resistance results in MOSFETs with lower power loss, which in turn indicates less heating and safer operation for the device.
