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MAX16815, MAX16828
High-Voltage, 100mA/200mA Adjustable Linear High-Brightness LED Drivers with PWM Dimming

High-Voltage LED Drivers with Adjustable LED Current and High-Voltage Dimming Input Ease Driver Design


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Status
Active: In Production.

Description
FULL DATA SHEET (PDF, 204kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail
The MAX16815/MAX16828 current regulators operate from a 6.5V to 40V input voltage range and deliver up to 100mA (MAX16815) or 200mA (MAX16828) to high-brightness LED (HB LED) loads. The output current is adjusted by using an external current sense resistor in series with the LEDs. The MAX16815/MAX16828's dimming input allows wide-range "pulsed" PWM operation. An on-board pass element minimizes external components while providing ±3.5% output-current accuracy.

The MAX16815/MAX16828 are available in a thermally enhanced, 3mm x 3mm, 6-pin TDFN package with exposed pad and in an 8-pin SO package with exposed pad; they are specified over the automotive -40°C to +125°C temperature range.

An evaluation kit is available:  MAX16828EVKIT  

Key Features   Applications/Uses
  • 6.5V to 40V Operating Range
  • Adjustable LED Current
    • MAX16815: 35mA to 100mA
    • MAX16828: 35mA to 200mA
  • ±3.5% LED Current Accuracy
  • High-Voltage DIM Input for Dimming Interface
  • Integrated Pass Element with Low-Dropout Voltage (0.4V typ)
  • 5V Regulated Output with 4mA Source Capability
  • Thermal Shutdown
  • Output Short-Circuit Protection
  • Available in Small, Thermally Enhanced, 3mm x 3mm, 6-Pin TDFN and 8-Pin SO with Exposed Pad Packages
  • -40°C to +125°C Operating Temperature Range

 
  		• Ambient and Architectural Lighting
  		• Automotive Exterior: Rear Combination Lights (RCLs)
  		• Automotive Interior: Map, Courtesy, and Cluster Lighting
  		• Display Backlighting
  		• Emergency Vehicle Warning Lights
  		• LED Bulbs
  		• Signage and Indicators

    Key Specifications:  High Brightness LED Drivers
    Part Number Topology VIN
    (V)    		 VIN
    (V)    		 Extended VIN with External Bias LED Channels ILED per Channel
    (A)    		 LED String Volt. Internal Pwr. MOSFETs PWM Dimming Freq.
    (kHz)    		 PWM Dimming Ratio EV Kit Price
    min max max max max max See Notes
    MAX16815  Linear Current Regulator 6.5 40 No
    1
    1
    		 0.1 Vin-1.4V Yes 1 1:30 No $0.48 @1k
    MAX16828  Yes $0.59 @1k
    See All High Brightness LED Drivers (26)

    Diagram
    MAX16815, MAX16828: Typical Operating Circuit
    Typical Operating Circuit

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    Document Ref.: 19-4032; Rev 1; 2009-07-24
    This page last modified: 2009-07-24


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