RLD90QZW8 - 數據表、主要規格

Supporting Information

背景

近年來在AGV、掃地機器人和自駕車等需要自動化工作的廣泛應用中，可以準確測量距離和識別空間的LiDAR日益普及。在此背景下，為了「更遠」、「更準確」地偵測到所需資訊，市場要求作為光源的雷射二極體能提高輸出功率和性能。

概要

「RLD90QZW8」是針對使用3D ToF系統進行測距和空間識別的LiDAR應用所開發的一款120W高輸出功率紅外雷射二極體。利用ROHM獨家元件開發技術，與市場競品相比，本產品的雷射波長溫度影響減少了66%，僅為⊿11.6nm（平均0.10nm/℃）。該優勢有助實現帶通濾光片的小型化，進而有助LiDAR實現遠距離檢測。另外還實現了270μm超窄發光幅度，而且在264μm範圍內（發光幅度的97%）實現了均勻而穩定的發光強度，有助提高LiDAR精度。此外還實現了出色的光電轉換效率（PCE），光輸出的效率更高，有助降低LiDAR功耗。

應用範例

消費性電子：掃地機器人、高爾夫雷射測距儀
工控設備：AGV、服務機器人、3D監控系統（人和物體偵測用的感測器）等

參考設計 / 應用評估套件

- Reference Design - REFLD002
- Laser Driver Reference Design with GaN HEMT for High-Resolution LiDAR
- The range of uses for LiDAR sensors is expanding to include not only autonomous driving, but also applications in the industrial and infrastructure fields. LiDAR sensors are required to have longer sensing distance and higher resolution, and in addition to improving the characteristics of the laser diode, it is necessary to drive the laser diode at higher speeds and power. ROHM offers a lineup of 905nm high power narrow emission width laser diodes. (RLD90QZWx Series) Reference designs are available that includes EcoGAN™, a next-generation device capable of high-speed drive, along with a high-speed gate driver for GaN HEMTs that contribute to improved LiDAR sensor characteristics (distance and resolution) .
  - Enables high-speed driving of laser diodes - a key device in LiDAR applications
  - Includes next-gen EcoGaN™ devices
  - Built-in high-speed gate driver for GaN HEMTs (BD2311NVX-C)
  - Two circuit types: square wave and resonant