Use Case

Application

High performance 4 channel laserdriver for LiDAR systems

Challenge

Driving multiple channels with high peak power at short pulse width for compact and efficient high accuracy systems

Expertise in Optical Sensor Interface ICs

Performance

  • Fully integrated multichip die-stack
  • 1 ns pulse width @ 50A peak current
  • Each channel individually addressable

Robustness

  • Automotive qualified (AEC-Q100)
  • Functional safety ready product
  • Integrated diagnostics
  • Monitoring of average output power to ensure eye-safety operation
  • CSA with external/ internal photo diode for monitoring

Flexibility

  • Usable with a variety of standard edge-emitting diodes (EELs) and vertical-cavity surface-emitting diodes (VCSELs)
  • Scalable 1-to-n-channel chiplet architecture supports majority of LiDAR applications

Our Solution

About – Elmos Laser Driver

Elmos Laser Driver is a scalable multi-channel laser-driver generating short high intensity pulses for direct time-of-flight measurements. Using a die stacking approach to minimize module size and  parasitic inductance, peak currents of up to 50A are applied to the laser-diodes within a 1ns pulse.

Advantages / USPs

  • Chip-stack-on-board design
  • Optimized for short pulses at high currents
  • Integrated diagnostics
  • Functional safety ready product
  • Automotive qualified
  • Cost-effective standard CMOS process

Comparison of E527.50 vs. competitor’s approach

Elmos: High speed solid state laser driver module

Competitor: Discrete Laser Driver Module

+ Monolithic multi-channel laser driver solution
+ Unparalleled performance: 1 ns pulse width @50A peak, 100ps @~10A feasible for medical imaging applications
+ Lowest inductance stack-up multi-channel driver
+ Included diagnostics for eye safety and functional safety
+ Optimized BOM list
+ Compact size
+ Scalability in low pitch

– Limited number of channels due to inductive wiring
– Challenging PCB layout to avoid wiring inductance
– Extensive BOM list

 

Contact

If you have any questions, don't hesitate to contact us

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