E522.84-87 | Linear LED Controller (Low Current Version 20 to 60mA)


E522.84/85/86/87 family devices provide triple linear current controller for LED driving (standalone driver or LED cluster). Diagnostic features are provided to meet automotive requirements, together with a communication interface “RUN” to link ICs to generate more than three channels, supporting common current configuration per IC and including digital PWM dimming via fast ENA.

“Single Lamp Mode” allows to simulate the fail-behaviour of a single bulb to e.g. meet legal restrictions regarding lighting.

Internal derating for reference voltage and overtemperature shutdown for extreme temperatures >180°C protect E522.8x in case of abnormal operation conditions.

A high voltage capable input ENA can be used to digitally enable or disable E522.8x. In addition, this input may be used as analog reference voltage input, e.g. to realize thermal derating.

More Information: automotive-led-driver.elmos.com/linear-led-controller.html




  • Three integrated Linear Current Drivers (3*60mA)
  • Operating input voltage range 5V to 25V, max. 40V
  • Advanced diagnostic features
    - Open / short detection
    - Diagnostic “RUN” bus to link multiple ICs
  • Different start-up voltages for open diagnostics can be chosen: VS=7.5V, 9V, 10V and 15V
  • “Single Lamp” mode disables all LEDs in case of a failure


  • Automotive LED Lighting, Rear Lighting
  • Turn Indicator Driver
  • Low Current Interior Lighting
  • Industrial LED Applications or simple RGB Drivers

Ordering Information

  • Samples
    Part No.TempJunc RangePackageOrder No.
    E522.84-40°C to +150°CSOIC8EPE52284A80D
    E522.85-40°C to +150°CSOIC8EPE52285A80D
    E522.86-40°C to +150°CSOIC8EPE52286A80D
    E522.87-40°C to +150°CSOIC8EPE52287A80D


  • Boards
    Part No.DescriptionBoard typeOrder No.
    E522.8xMaster ControllerboardDemoboardK5228x-0001
    E522.8xEMC BoardDemoboardK5228x-0002
    E522.81LED Slaveboard Red (3x3 red)DemoboardK52281-0001
    E522.83LED Slaveboard RGB (3x red, 3x green, 3x blue)DemoboardK52283-0001


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Application Diagram

Linear LED Controller (Low Current Version 20 to 60mA)