ADAS LiDAR systems

Light Detection And Ranging (LiDAR) systems are a key part of the current suite of Advance Driver Assistance Systems (ADAS). These sensors enable vehicles to provide safety critical functions and full autonomous driving. In achieving Autonomous Driving Levels L3 and L4, LIDARs play a key role by supporting cameras and radars with object recognition, distance estimations and dynamic mapping.

Block diagram
Design considerations
Product listing
Support

Block diagram

Highlighted components are Nexperia focus products.

Reverse battery protection

Transient Voltage Suppressors (TVS)

Laser diode driver

Smart switch

ESD bus protection

Voltage translators

Ballast transistor

Select a component

To view more information about the Nexperia components used in this application, please select a component above or click on a component (highlighted in blue) in the block diagram.

Design considerations

With multiple LDARs potentially required for full 360-degree sensing, design is spatially limited
LiDAR are often mounted on exterior part of vehicles therefore need to sustain vibrations and large temperature variations from exposure to the exterior ambient
Use rugged and robust packages like Nexperias LFPAK and CFP packages which further supports space saving, thermal efficiency and high reliability levels
LiDARs requires high frequency switching and high current capability for the laser actuator
System requires superior resolution, faster response times and greater accuracy for mapping
Fast communication is required to the ADAS Control Units, with adequate ESD protection
Small signal discrete and logic devices can add additional safety features and functions that are independent of the main control unit

Product listing

ESD bus protection

Voltage translators

Dual supply voltage translation, AVC, LVC

Ballast transistor

Low VCEsat transistors: ~250 mW, 15 / 40 V

双极性晶体管

二极管

ESD保护、TVS、滤波和信号调节ESD保护

MOSFET

氮化镓场效应晶体管(GaN FET)

绝缘栅双极晶体管(IGBTs)

模拟和逻辑IC

汽车应用认证产品(AEC-Q100/Q101)