MAX16836:High-Voltage, 350mA, High-Brightness LED Driver with PWM Dimming and 5V Regulator

350mA LED Driver Provides 3.5% Current Accuracy for Long LED Strings and PWM Dimming

The MAX16836 current regulator operates from a 6.5V to 40V input-voltage range and delivers up to a total of 350mA to one or more strings of high-brightness LEDs (HB LEDs). The output current of the MAX16836 is adjusted by using an external current-sense resistor in series with the LEDs. A dimming input allows wide-range "pulsed" PWM operation. Wave-shaping circuitry reduces EMI. The differential current-sense input increases noise immunity. The MAX16836 is well suited for applications requiring a high-voltage input and is able to withstand automotive load-dump events up to 40V. An on-board pass element minimizes external components while providing ±3.5% output-current accuracy. Additional features include a 5V regulated output and short-circuit and thermal protection. The MAX16836 is available in a thermally enhanced, 5mm x 5mm, 16-pin TQFN package and in an 8-pin SO package with exposed pad. The MAX16836 is specified over the automotive -40°C to +125°C temperature range.

Key Features
  • +6.5V to +40V Operating Range
  • Adjustable LED Current (35mA to 350mA)
  • ±3.5% LED Current Accuracy
  • High-Voltage DIM Pin for Dimming Interface
  • Integrated Pass Element with Low-Dropout Voltage (0.55V typ)
  • +5V Regulated Output with 4mA Source Capability
  • Parallel Operation for LED Current > 350mA
  • Differential LED Current Sense
  • Low Shutdown Supply Current (35µA typ)
  • Low 200mV Current-Sense Reference Reduces Power Losses
  • Wave-Shaped Edges Reduce Radiated EMI During PWM Dimming
  • Thermal Shutdown
  • Output Short-Circuit Protection
  • Available in Small, Thermally Enhanced, 5mm x 5mm, 16-Pin TQFN Package and in 8-Pin SO with Exposed Pad Package
  • -40°C to +125°C Operating Temperature Range
MAX16836: Typical Operating Circuit
MAX16836: Typical Operating Circuit
  • Automotive Interior: Map, Courtesy, and Cluster Lighting
  • Automotive Exterior: Tail Lights and CHMSL
  • Emergency Vehicle Warning Lights
  • Navigation and Marine Indicators
  • General Lighting
  • Signage, Gasoline Canopies, Beacons
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MAX16836 Data SheetMAX16836.pdf
Part NumberRegulation TopologyMax. No. of LEDsLED ChannelsLED ConfigurationILED per Channel
PWM Dimming Freq.
Dimming RatioDimming ControlVDROPOUT
LED String Volt.
maxmaxmaxtypminmaxmaxmaxSee Notes
$1.41 @1k
Design kits & evaluation modules
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX16836ASA+ActiveSOIC(N)-EP,;8 pin;30.9 mm²-40°C to +125°CLead Free
MAX16836ASA+TActiveSOIC(N)-EP,;8 pin;30.9 mm²-40°C to +125°CLead Free
MAX16836ATE+ActiveTQFN,;16 pin;26 mm²-40°C to +125°CLead Free
MAX16836ATE+TActiveTQFN,;16 pin;26 mm²-40°C to +125°CLead Free
MAX16836.pdf MAX16836
MAX16836.pdf MAX16836