MAX16803
MAX16803
PRODUCTIONHigh-Voltage, 350mA, High-Brightness LED Driver with PWM Dimming and 5V Regulator
Smallest, High-Voltage, 350mA High-Brightness LED Driver Simplifies LED Lighting Applications, Minimizes External Part Counts, and Saves Cost and Space
- Part Models
- 2
- 1ku List Price
- Starting From $4.81
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Overview
- +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 (0.5V typ)
- +5V Regulated Output with 4mA Source Capability
- Parallel Operation for LED Current > 350mA
- Differential LED Current Sense
- Low Shutdown Supply Current (12µA typ)
- Low 204mV 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
- -40°C to +125°C Operating Temperature Range
The MAX16803 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 MAX16803 is adjusted by using an external current-sense resistor in series with the LEDs. A dimming input allows widerange "pulsed" PWM operation. Wave-shaping circuitry reduces EMI. The differential current-sense input increases noise immunity. The MAX16803 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 MAX16803 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.
The MAX16836 is a newer and more cost effective product; except for different PWM dimming current slew rates, it provides the same performance and is pin-to-pin compatible with the MAX16803.
Applications
- Automotive Exterior: Rear Combination Lights (RCL)
- Automotive Interior: Map, Courtesy, and Cluster Lighting
- Emergency Vehicle Warning Lights
- General Lighting
- Navigation and Marine Indicators
- Signage, Gasoline Canopies, Beacons
Documentation
Data Sheet 1
Design Note 1
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 Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX16803ATE+ | 16-Lead TQFN (5mm x 5mm x 0.75mm) | ||
| MAX16803ATE+T | 16-Lead TQFN (5mm x 5mm x 0.75mm) |
This is the most up-to-date revision of the Data Sheet.
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Evaluation Kit for the MAX16803
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