MAX16835
High-Voltage, 350mA, Adjustable Linear High-Brightness LED Driver
350mA LED Driver Provides 3.5% Current Accuracy for Long LED Strings
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Overview
Features and Benefits
- +6.5V to +40V Operating Range
- Adjustable LED Current (35mA to 350mA)
- ±3.5% Output Current Accuracy
- Integrated Pass Element with Low-Dropout Voltage (0.55V typ)
- Output Short-Circuit Protection
- +5V Regulated Output with 4mA Source Capability
- Thermal Shutdown
- Differential LED Current Sense
- High-Voltage Enable Pin for Dimming Interface
- Low Shutdown Supply Current (35µA typ)
- Low 200mV Current-Sense Reference Reduces Power Losses
- Wave-Shaped Edges Reduce Radiated EMI During PWM Dimming
- Available in Small, Thermally Enhanced, 5mm x 5mm, 16-Pin TQFN Package
- -40°C to +125°C Operating Temperature Range
Product Details
The MAX16835 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 MAX16835 is adjusted by using an external current-sense resistor in series with the LEDs. An enable input allows wide-range "pulsed" dimming. Wave-shaping circuitry reduces EMI. The differential current-sense input increases noise immunity. The MAX16835 is well suited for applications requiring 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 MAX16835 is available in a thermally enhanced, 5mm x 5mm, 16-pin TQFN package and is specified over the automotive -40°C to +125°C temperature range.
Applications
- Automotive Interior: Map, Courtesy, and Cluster Lighting
- Automotive Exterior: Tail Lights and CHMSL
- Warning Lights for Emergency Vehicles
- Navigation and Marine Indicators
- General Illumination
- Signage, Gasoline Canopies, Beacons
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Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
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Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX16835ATE+ | Material Declaration | Reliability Data | 16-LFCSP-5X5X0.75 | |
| MAX16835ATE+T | Material Declaration | Reliability Data | 16-LFCSP-5X5X0.75 | |
| Wafer Fabrication Data |
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.