MAX16803
High-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
Top
Overview
Features and Benefits
- +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
Product Details
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
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
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.
Support & Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.