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REFLD002 - Reference Design

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

REFLD002-1

 

EcoGaN Logo

Specification

Onboard Devices Laser Diode RLD90QZW8 RLD90QZW3
EcoGaN™ GNE1040TB
Gate Driver BD2311NVX-LB
Reverse Current Protection Diode RF05VAM2S
Shunt Resistor LTR10 Series

REFLD002-1 Square wave Product in refDesign and related contents

Product name Status Datasheet Specification Sample
RLD90QZW8 under development PDF 905nm 120W Narrow Emission Width Laser Diode Contact Us
GNE1040TB Recommended Products PDF EcoGaN™ GaN HEMT 150V, 40mΩ Contact Us
BD2311NVX-LB Recommended Products PDF GaN HEMT High-Speed Driver IC Buy
RF05VAM2S Recommended Products PDF Reverse Current Protection Fast Recovery Diode Buy
LTR10 Recommended Products PDF Current Sense Shunt Resistor Buy

REFLD002-2 Resonant Product in refDesign and related contents

Product name Status Datasheet Specification Sample
RLD90QZW3 Recommended Products PDF 905nm 75W Narrow Emission Width Laser Diode Buy
GNE1040TB Recommended Products PDF EcoGaN™ GaN HEMT 150V, 40mΩ Contact Us
BD2311NVX-LB Recommended Products PDF GaN HEMT High-Speed Driver IC Buy
RF05VAM2S Recommended Products PDF Reverse Current Protection Fast Recovery Diode Buy
LTR10 Recommended Products PDF Current Sense Shunt Resistor Buy

*Application notes, model libraries, PCB libraries, and other contents can be downloaded from the individual product pages

Related Documents

 

Specifications

 
Board Number Input volatage (Laser Diode Drive) Input volatage (Gate Driver) Laser power Switching Frequency
REFLD002-1 ~60 V 5V 905nm, 120W 0.1 to 0.5kHz
REFLD002-2 ~120 V 5V 905nm, 75W 0.1 to 100kHz

Distribution Inventory

 
Board Number Distributor Quantity Available

Key Components

 
Board Number Part Number Product Category Datasheet Status SPICE LTspice Thermal Model Symbol & Footprint 3D STEP Samacsys ECAD Library Calc Tool ROHM Solution Simulator
REFLD002-1 BD2311NVX-LB Gate Drivers - Recommended -
REFLD002-1 GNE1040TB GaN HEMT - Recommended -
REFLD002-1 LTR100JZPFL Current Detection Resistors - Recommended -
REFLD002-1 LTR100JZPJL Current Detection Resistors - Recommended -
REFLD002-1 LTR100LJZPFS Current Detection Resistors - Recommended -
REFLD002-1 LTR100LJZPFU Current Detection Resistors - Recommended -
REFLD002-1 LTR100LJZPJS Current Detection Resistors - Recommended -
REFLD002-1 LTR100LJZPJU Current Detection Resistors - Recommended -
REFLD002-1 LTR10LEZPDL Current Detection Resistors - Recommended -
REFLD002-1 LTR10LEZPFL Current Detection Resistors - Recommended -
REFLD002-1 LTR10LEZPFS Current Detection Resistors - Recommended -
REFLD002-1 LTR10LEZPJL Current Detection Resistors - Recommended -
REFLD002-1 LTR10LEZPJS Current Detection Resistors - Recommended -
REFLD002-1 RF05VAM2S Fast Recovery Diodes - Recommended - - - - -
REFLD002-1 RLD90QZW8 High Output Laser Diodes - Under Development - Solution Simulator
REFLD002-2 BD2311NVX-LB Gate Drivers - Recommended -
REFLD002-2 BU21077MUV Capacitive Switch Control ICs - Not Recommended for New Designs - -
REFLD002-2 GNE1040TB GaN HEMT - Recommended -
REFLD002-2 LTR100JZPFL Current Detection Resistors - Recommended -
REFLD002-2 LTR100JZPJL Current Detection Resistors - Recommended -
REFLD002-2 LTR100LJZPFS Current Detection Resistors - Recommended -
REFLD002-2 LTR100LJZPFU Current Detection Resistors - Recommended -
REFLD002-2 LTR100LJZPJS Current Detection Resistors - Recommended -
REFLD002-2 LTR100LJZPJU Current Detection Resistors - Recommended -
REFLD002-2 LTR10LEZPDL Current Detection Resistors - Recommended -
REFLD002-2 LTR10LEZPFL Current Detection Resistors - Recommended -
REFLD002-2 LTR10LEZPFS Current Detection Resistors - Recommended -
REFLD002-2 LTR10LEZPJL Current Detection Resistors - Recommended -
REFLD002-2 LTR10LEZPJS Current Detection Resistors - Recommended -
REFLD002-2 RF05VAM2S Fast Recovery Diodes - Recommended - - - - -
REFLD002-2 RLD90QZW3 High Output Laser Diodes - Active - Solution Simulator
REFLD002-2 RLD90QZW8 High Output Laser Diodes - Under Development - Solution Simulator