A 3A Low Voltage Laser Diode Driver Ic In A Cmos Technology For An Itofbased 3D Image Sensor

• doi: 10.23919/EPE20ECCEEurope43536.2020.9215735
• title: A 3A Low Voltage Laser Diode Driver IC in a CMOS technology for an iToF-based 3D image sensor
• publisher: IEEE
• isbn: 978-1-7281-9807-1
• issn:
• rank: 431
• access_type: LOCKED
• content_type: Conferences
• abstract: This paper presents a Laser Diode Driver (LDD) intended for a 3D image sensor used in mobile phones and based on the indirect Time-of-Flight (iToF) measurement. The work is focused on the study and design of the Integrated Circuit (IC) considering constraints related to mobile applications (low input voltage range, strong integration). The architecture relies on a classical driving topology where a buck-boost DC/DC converter is employed for controlling the current through the laser diode with a high power efficiency while a switching element is connected in series with the diode for generating laser pulses. The novelty here concerns the feasibility of integrating the whole solution (except laser diode and off-chip passive components) on a single chip. A LDD prototype has been implemented in a 130nm CMOS technology from STMicroelectronics. It is able to provide current pulses up to 3A with a 2.5ns pulse width at a maximum 200MHz Pulse Repetition Frequency (PRF) for a 3.6V supply voltage. Under theses conditions, the prototype delivers an average output electrical power of 4.5W to the laser diode with an electrical efficiency of 63%.
• article_number: 9215735
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9215735
• html_url: https://ieeexplore.ieee.org/document/9215735/
• abstract_url: https://ieeexplore.ieee.org/document/9215735/
• publication_title: 2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)
• conference_location: Lyon, France
• conference_dates: 7-11 Sept. 2020
• publication_number: 9205178
• is_number: 9215566
• publication_year: 2020
• publication_date: 7-11 Sept. 2020
• start_page: 1
• end_page: 10
• citing_paper_count: 1
• citing_patent_count: 0
• download_count: 502
• insert_date: 20201007
• index_terms:
  • ieee_terms:
    • Diode lasers
    • Integrated circuits
    • Image sensors
    • Three-dimensional displays
    • CMOS technology
    • Modulation
    • Prototypes
  • author_terms:
    • High-speed drive
    • Pulsed power converter
    • Integrated Circuit (IC)
    • Diode
    • Sensor
  • dynamic_index_terms:
    • 3D Images
    • Low Voltage
    • Diode Laser
    • Image Sensor
    • Camera Sensor
    • Laser Diode Driver
    • Prototype
    • Mobile App
    • Mobile Application
    • Smartphone Application
    • Smartphone App
    • Mobile Apps
    • Smartphone Apps
    • Electric Power
    • Electrical System
    • Laser Pulse
    • Pulse Width
    • Pulsewidth Modulation
    • Pulsewidth
    • Pulse Width Modulation
    • Input Voltage
    • Current Pulse
    • Passive Components
    • Pulse Repetition Frequency
    • Single Chip
    • High Power Efficiency
    • Electrical Efficiency
    • Input Voltage Range
    • Switching Elements
    • High Voltage
    • Higher Tendency
    • Average Current
    • Differential Signal
    • Differentiation Signaling
    • Peak Current
    • Optical Measurements
    • Optical Power
    • Lens Power
    • Refractive Power
    • Pulse Wave
    • Pulse Train
    • Parasitic Inductance
    • Overvoltage
    • Short Pulse
    • Voltage Spikes
    • Current Spike
• isbn_formats:
  • format: Print on Demand(PoD) ISBN, value: 978-1-7281-9807-1, isbnType: New-2005
  • format: Electronic ISBN, value: 978-9-0758-1536-8, isbnType: New-2005
• authors:
  • Author Name: Romain David
    Affiliation: STMicroelectronics, Analog, MEMS & Sensors Group, Grenoble B.P. 217, France
    Author URL: https://ieeexplore.ieee.org/author/37088521679
    ID: 37088521679
    Order: 1
    Author Affiliations:
    • STMicroelectronics, Analog, MEMS & Sensors Group, Grenoble B.P. 217, France
  • Author Name: Bruno Allard
    Affiliation: University of Lyon, University Claude Bernard Lyon 1, INSA Lyon, CNRS, Ampere, Villeurbanne, France
    Author URL: https://ieeexplore.ieee.org/author/37276416300
    ID: 37276416300
    Order: 2
    Author Affiliations:
    • University of Lyon, University Claude Bernard Lyon 1, INSA Lyon, CNRS, Ampere, Villeurbanne, France
  • Author Name: Xavier Branca
    Affiliation: STMicroelectronics, Analog, MEMS & Sensors Group, Grenoble B.P. 217, France
    Author URL: https://ieeexplore.ieee.org/author/38315897200
    ID: 38315897200
    Order: 3
    Author Affiliations:
    • STMicroelectronics, Analog, MEMS & Sensors Group, Grenoble B.P. 217, France
  • Author Name: Charles Joubert
    Affiliation: University of Lyon, University Claude Bernard Lyon 1, INSA Lyon, CNRS, Ampere, Villeurbanne, France
    Author URL: https://ieeexplore.ieee.org/author/37283298700
    ID: 37283298700
    Order: 4
    Author Affiliations:
    • University of Lyon, University Claude Bernard Lyon 1, INSA Lyon, CNRS, Ampere, Villeurbanne, France

Image Sensor

• sensor_type: CMOS
• resolution: Not specified
• dynamic_range: Not specified
• pixel_size: Not specified
• dark_current: Not specified

Optical Data

• focal_length: Not specified
• aperture: Not specified
• field_of_view: Not specified
• distortion: Not specified

Performance Metrics

• frame_rate: 50MHz-200MHz
• power_consumption: 7.06W

Applications & Benefits

• cell_imaging: Applicable in mobile applications such as facial recognition, gesture control, and augmented reality (AR).
• benefits: Compact, cost-effective, and efficient laser diode driver for enhancing 3D depth sensing capabilities.

Supporting Organizations

• supported_by: University of Lyon, STMicroelectronics

Manuscript Details

• publication_date: 7-11 Sept. 2020

Relevancy Score

• score: 10
• missing_fields:
  • resolution
  • dynamic_range
  • pixel_size
  • dark_current
  • signal_to_noise_ratio
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • sensitivity
  • shutter_speed
  • noise

Processed JSON Filename

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