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    LED Driver Array for
    Industrial Printers
    High-precision LED driver ASIC enabling faster,
    sharper industrial digital printing

In high-performance laser/LED based industrial printing, speed and accuracy depend on how precisely each individual LED in the printhead is driven. Modern digital printers require consistent current delivery, minimal crosstalk, and stable operation even as temperatures rise during intensive high-speed print cycles.

To help manufacturers push print quality and throughput to new levels, Cyient Semiconductors provides a custom LED driver ASIC designed to manage 198 LEDs with exceptional accuracy - all within the tight mechanical constraints of a narrow printer head. The solution supports faster print speeds, cleaner imaging, and more reliable long-term operation.

At the core of connected industry

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Smart metering (gas/water/electricity)

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Smart metering (gas/water/electricity)

Secure, low-power communication for real-time utility monitoring

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Time-of-flight
for robotics

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Time-of-flight
for robotics

Precision sensing for navigation and obstacle detection in automation

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Lighting, building automation, and HVAC

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Lighting, building automation, and HVAC

Fire detection, CCTV/video surveillance cameras, intruder alarm, thermostats & controls

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NFC and RFID systems

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NFC and RFID systems

Seamless smart infrastructure integration with telecom expertise

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Encoders for robotics

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Encoders for robotics

High-precision motion control for automation and industrial robotic applications

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Test equipment

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Test equipment

Automated test equipment for semiconductors, digital multimeters, network analyzers, digital oscilloscopes

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Factory automation & control

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Factory automation & control

Flow, level, pressure, and temperature measurement

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Motor drives

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Motor drives

AC variable speed drives, DC drives, servo drives, stepper drives, soft starters/brakes

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Power & energy

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Power & energy

AC/DC supplies, converters, inverters, battery chargers, UPS, generators, and renewable energy (hydro/solar/wind)

Success in action

How we’ve helped leaders in Industry 4.0 and robotics

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LED driver array for industrial printers

Designed an advanced LED driver array using TSMC 0.18µm technology, enhancing industrial printing with precise current control and on-chip diagnostics.

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Laser distance measurement system for Industry 4.0

Developed a System-on-Chip (SoC) for laser distance measurement with precise laser driver pulse steering and a Transimpedance Amplifier (TIA) photodiode front end, achieving accurate distance measurements for automation and manufacturing.

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High precision GPS receiver

Designed a high-precision GPS receiver using TSMC 65nm technology, ensuring accurate location tracking even in challenging environments, enabling applications like surveying and asset tracking.

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Smart metering with acoustic front end

Developed an ultra-sound transceiver using TSMC 0.18µm CMOS technology for accurate flow metering and acoustic sensing, enabling precise water, heat, and electricity usage measurement in smart meters.

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High-performance EPC Gen2 RFID UHF reader

Developed a highly integrated RFID reader IC suitable for fixed and mobile applications. The complete UHF radio transceiver is integrated on-chip, including the digital modem and an ARM Cortex M0+ core. The design features a low-noise, high-linearity optimized receiver to support backscattering communication, ensuring reliable performance in diverse environments.

From design to silicon:
full-spectrum semiconductor expertise

Custom semiconductor design and turnkey ASIC solutions, built for Industry 4.0 and robotics

SDS Fulll bleed card

The requirements

The printer head places demanding requirements on the chipset, including:

  • Independent, precise current control for 198 individual LEDs
  • Stable operation across a wide temperature range
  • Minimal crosstalk and electromagnetic interference between channels
  • Efficient management of load variations caused by local heating
  • Compact silicon footprint to fit inside the narrow print head
  • High-speed digital communication for configuration and data transfer
  • Built-in diagnostics to detect faulty LED drivers
These requirements ensure sharp, uniform print output even under heavy-duty industrial workloads.
ASIC turnkey (1) Fulll bleed card (1)

Bringing the solution to life

Cyient Semiconductors developed a custom LED driver ASIC that brings accuracy, thermal stability, and high-speed control together in one compact device. The chip uses a segmented DAC architecture, dedicated current sources, and crosstalk-aware layout techniques to guarantee uniform LED behavior across the entire array.

Key Features:
  • 198 LED drivers, each controlled via an 8-bit segmented DAC
  • Wide current range per LED: 125–2000 μA, independent of temperature
  • Crosstalk-optimized layout for consistent output across all LEDs
  • SPI configuration interface plus SSTL high-speed data support
  • 500 Mbps LVDS communication
  • Built-in diagnostic circuitry for fault detection
  • Reusable ATE diagnostics for efficient testing
  • Compact design suitable for narrow print head integration
Every aspect of the ASIC focuses on delivering stable current, controlling thermal effects, and ensuring that the print head produces clean, consistent patterns at high speeds.

Where it’s used today

This LED driver ASIC is a key enabler in latest-generation industrial digital printers, supporting:

•    Faster print speeds without sacrificing quality
•    High-precision control for large LED arrays
•    Improved stability under heavy thermal and electrical loads
•    Reduced external circuitry thanks to on-chip diagnostics and integrated interfaces

Its combination of precision, integration, and thermal resilience helps printer manufacturers deliver sharper output while keeping designs compact and efficient.

Need specialized silicon for
industrial automation? 

Talk to our experts