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MAX16800
High-Voltage, 350mA, Adjustable Linear High-Brightness LED (HB LED) Driver
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The MAX16800 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. The output current of the MAX16800 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 MAX16800 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 MAX16800 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 MAX16835 is a newer and more cost effective product that provides the same performance and is pin-to-pin compatible with the MAX16800.
The MAX16800 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 MAX16835 is a newer and more cost effective product that provides the same performance and is pin-to-pin compatible with the MAX16800.
Key Features
- +6.5V to +40V Operating Range
- Adjustable Level (35mA to 350mA)
- ±3.5% Output Current Accuracy
- Integrated Pass Element with Low-Dropout Voltage (0.5V 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 (12&µA typ)
- Low 204mV Current-Sense Reference Reduces Power Losses
- Wave-Shaped Soft 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
Applications/Uses
- Automotive Exterior: Tail Lights and CHMSL
- Automotive Interior: Map, Courtesy, and Cluster Lighting
- General Illumination
- Navigation and Marine Indicators
- Signage, Gasoline Canopies, Beacons
- Warning Lights for Emergency Vehicles
Technical Docs
| Data Sheet | High-Voltage, 350mA, Adjustable Linear High-Brightness LED (HB LED) Driver | Aug 12, 2009 | |
| App Note | Linear Brightness Controller for LEDs Has 64 Taps | ||
| App Note | Power Supplies for Next-Generation Automotive Lighting | ||
| App Note | MAX16800 Test Board | ||
| Tutorial | LEDs Are Still Popular (and Improving) after All These Years |
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Support & Training
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Parameters
Key Features
- +6.5V to +40V Operating Range
- Adjustable Level (35mA to 350mA)
- ±3.5% Output Current Accuracy
- Integrated Pass Element with Low-Dropout Voltage (0.5V 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 (12&µA typ)
- Low 204mV Current-Sense Reference Reduces Power Losses
- Wave-Shaped Soft 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
Applications/Uses
- Automotive Exterior: Tail Lights and CHMSL
- Automotive Interior: Map, Courtesy, and Cluster Lighting
- General Illumination
- Navigation and Marine Indicators
- Signage, Gasoline Canopies, Beacons
- Warning Lights for Emergency Vehicles
Description
The MAX16800 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. The output current of the MAX16800 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 MAX16800 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 MAX16800 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 MAX16835 is a newer and more cost effective product that provides the same performance and is pin-to-pin compatible with the MAX16800.
The MAX16800 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 MAX16835 is a newer and more cost effective product that provides the same performance and is pin-to-pin compatible with the MAX16800.
Technical Docs
| Data Sheet | High-Voltage, 350mA, Adjustable Linear High-Brightness LED (HB LED) Driver | Aug 12, 2009 | |
| App Note | Linear Brightness Controller for LEDs Has 64 Taps | ||
| App Note | Power Supplies for Next-Generation Automotive Lighting | ||
| App Note | MAX16800 Test Board | ||
| Tutorial | LEDs Are Still Popular (and Improving) after All These Years |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal
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